1059 lines
33 KiB
Java
1059 lines
33 KiB
Java
/*
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* Copyright (C) 2006 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.app;
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import com.android.internal.policy.PolicyManager;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.ComponentName;
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import android.content.ContextWrapper;
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import android.graphics.drawable.Drawable;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Message;
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import android.view.ContextMenu;
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import android.view.ContextThemeWrapper;
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import android.view.Gravity;
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import android.view.KeyEvent;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewConfiguration;
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import android.view.ViewGroup;
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import android.view.Window;
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import android.view.WindowManager;
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import android.view.ContextMenu.ContextMenuInfo;
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import android.view.View.OnCreateContextMenuListener;
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import android.view.ViewGroup.LayoutParams;
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import android.view.accessibility.AccessibilityEvent;
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import java.lang.ref.WeakReference;
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/**
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* Base class for Dialogs.
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*
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* <p>Note: Activities provide a facility to manage the creation, saving and
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* restoring of dialogs. See {@link Activity#onCreateDialog(int)},
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* {@link Activity#onPrepareDialog(int, Dialog)},
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* {@link Activity#showDialog(int)}, and {@link Activity#dismissDialog(int)}. If
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* these methods are used, {@link #getOwnerActivity()} will return the Activity
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* that managed this dialog.
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*
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* <p>Often you will want to have a Dialog display on top of the current
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* input method, because there is no reason for it to accept text. You can
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* do this by setting the {@link WindowManager.LayoutParams#FLAG_ALT_FOCUSABLE_IM
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* WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM} window flag (assuming
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* your Dialog takes input focus, as it the default) with the following code:
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*
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* <pre>
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* getWindow().setFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM,
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* WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
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* </pre>
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*/
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public class Dialog implements DialogInterface, Window.Callback,
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KeyEvent.Callback, OnCreateContextMenuListener {
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private Activity mOwnerActivity;
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final Context mContext;
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final WindowManager mWindowManager;
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Window mWindow;
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View mDecor;
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/**
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* This field should be made private, so it is hidden from the SDK.
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* {@hide}
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*/
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protected boolean mCancelable = true;
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private Message mCancelMessage;
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private Message mDismissMessage;
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private Message mShowMessage;
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/**
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* Whether to cancel the dialog when a touch is received outside of the
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* window's bounds.
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*/
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private boolean mCanceledOnTouchOutside = false;
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private OnKeyListener mOnKeyListener;
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private boolean mCreated = false;
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private boolean mShowing = false;
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private final Thread mUiThread;
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private final Handler mHandler = new Handler();
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private static final int DISMISS = 0x43;
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private static final int CANCEL = 0x44;
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private static final int SHOW = 0x45;
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private Handler mListenersHandler;
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private final Runnable mDismissAction = new Runnable() {
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public void run() {
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dismissDialog();
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}
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};
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/**
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* Create a Dialog window that uses the default dialog frame style.
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*
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* @param context The Context the Dialog is to run it. In particular, it
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* uses the window manager and theme in this context to
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* present its UI.
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*/
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public Dialog(Context context) {
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this(context, 0);
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}
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/**
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* Create a Dialog window that uses a custom dialog style.
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*
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* @param context The Context in which the Dialog should run. In particular, it
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* uses the window manager and theme from this context to
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* present its UI.
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* @param theme A style resource describing the theme to use for the
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* window. See <a href="{@docRoot}guide/topics/resources/available-resources.html#stylesandthemes">Style
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* and Theme Resources</a> for more information about defining and using
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* styles. This theme is applied on top of the current theme in
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* <var>context</var>. If 0, the default dialog theme will be used.
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*/
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public Dialog(Context context, int theme) {
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mContext = new ContextThemeWrapper(
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context, theme == 0 ? com.android.internal.R.style.Theme_Dialog : theme);
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mWindowManager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
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Window w = PolicyManager.makeNewWindow(mContext);
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mWindow = w;
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w.setCallback(this);
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w.setWindowManager(mWindowManager, null, null);
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w.setGravity(Gravity.CENTER);
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mUiThread = Thread.currentThread();
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mListenersHandler = new ListenersHandler(this);
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}
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/**
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* @deprecated
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* @hide
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*/
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@Deprecated
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protected Dialog(Context context, boolean cancelable,
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Message cancelCallback) {
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this(context);
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mCancelable = cancelable;
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mCancelMessage = cancelCallback;
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}
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protected Dialog(Context context, boolean cancelable,
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OnCancelListener cancelListener) {
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this(context);
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mCancelable = cancelable;
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setOnCancelListener(cancelListener);
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}
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/**
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* Retrieve the Context this Dialog is running in.
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*
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* @return Context The Context that was supplied to the constructor.
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*/
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public final Context getContext() {
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return mContext;
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}
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/**
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* Sets the Activity that owns this dialog. An example use: This Dialog will
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* use the suggested volume control stream of the Activity.
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*
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* @param activity The Activity that owns this dialog.
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*/
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public final void setOwnerActivity(Activity activity) {
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mOwnerActivity = activity;
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getWindow().setVolumeControlStream(mOwnerActivity.getVolumeControlStream());
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}
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/**
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* Returns the Activity that owns this Dialog. For example, if
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* {@link Activity#showDialog(int)} is used to show this Dialog, that
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* Activity will be the owner (by default). Depending on how this dialog was
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* created, this may return null.
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*
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* @return The Activity that owns this Dialog.
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*/
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public final Activity getOwnerActivity() {
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return mOwnerActivity;
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}
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/**
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* @return Whether the dialog is currently showing.
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*/
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public boolean isShowing() {
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return mShowing;
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}
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/**
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* Start the dialog and display it on screen. The window is placed in the
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* application layer and opaque. Note that you should not override this
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* method to do initialization when the dialog is shown, instead implement
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* that in {@link #onStart}.
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*/
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public void show() {
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if (mShowing) {
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if (mDecor != null) {
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mDecor.setVisibility(View.VISIBLE);
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}
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return;
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}
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if (!mCreated) {
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dispatchOnCreate(null);
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}
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onStart();
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mDecor = mWindow.getDecorView();
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WindowManager.LayoutParams l = mWindow.getAttributes();
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if ((l.softInputMode
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& WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION) == 0) {
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WindowManager.LayoutParams nl = new WindowManager.LayoutParams();
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nl.copyFrom(l);
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nl.softInputMode |=
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WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION;
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l = nl;
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}
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try {
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mWindowManager.addView(mDecor, l);
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mShowing = true;
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sendShowMessage();
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} finally {
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}
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}
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/**
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* Hide the dialog, but do not dismiss it.
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*/
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public void hide() {
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if (mDecor != null) {
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mDecor.setVisibility(View.GONE);
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}
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}
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/**
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* Dismiss this dialog, removing it from the screen. This method can be
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* invoked safely from any thread. Note that you should not override this
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* method to do cleanup when the dialog is dismissed, instead implement
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* that in {@link #onStop}.
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*/
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public void dismiss() {
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if (Thread.currentThread() != mUiThread) {
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mHandler.post(mDismissAction);
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} else {
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mDismissAction.run();
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}
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}
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private void dismissDialog() {
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if (mDecor == null || !mShowing) {
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return;
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}
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try {
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mWindowManager.removeView(mDecor);
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} finally {
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mDecor = null;
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mWindow.closeAllPanels();
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onStop();
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mShowing = false;
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sendDismissMessage();
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}
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}
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private void sendDismissMessage() {
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if (mDismissMessage != null) {
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// Obtain a new message so this dialog can be re-used
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Message.obtain(mDismissMessage).sendToTarget();
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}
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}
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private void sendShowMessage() {
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if (mShowMessage != null) {
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// Obtain a new message so this dialog can be re-used
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Message.obtain(mShowMessage).sendToTarget();
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}
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}
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// internal method to make sure mcreated is set properly without requiring
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// users to call through to super in onCreate
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void dispatchOnCreate(Bundle savedInstanceState) {
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if (!mCreated) {
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onCreate(savedInstanceState);
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mCreated = true;
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}
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}
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/**
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* Similar to {@link Activity#onCreate}, you should initialized your dialog
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* in this method, including calling {@link #setContentView}.
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* @param savedInstanceState If this dialog is being reinitalized after a
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* the hosting activity was previously shut down, holds the result from
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* the most recent call to {@link #onSaveInstanceState}, or null if this
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* is the first time.
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*/
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protected void onCreate(Bundle savedInstanceState) {
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}
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/**
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* Called when the dialog is starting.
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*/
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protected void onStart() {
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}
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/**
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* Called to tell you that you're stopping.
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*/
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protected void onStop() {
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}
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private static final String DIALOG_SHOWING_TAG = "android:dialogShowing";
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private static final String DIALOG_HIERARCHY_TAG = "android:dialogHierarchy";
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/**
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* Saves the state of the dialog into a bundle.
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*
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* The default implementation saves the state of its view hierarchy, so you'll
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* likely want to call through to super if you override this to save additional
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* state.
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* @return A bundle with the state of the dialog.
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*/
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public Bundle onSaveInstanceState() {
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Bundle bundle = new Bundle();
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bundle.putBoolean(DIALOG_SHOWING_TAG, mShowing);
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if (mCreated) {
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bundle.putBundle(DIALOG_HIERARCHY_TAG, mWindow.saveHierarchyState());
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}
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return bundle;
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}
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/**
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* Restore the state of the dialog from a previously saved bundle.
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*
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* The default implementation restores the state of the dialog's view
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* hierarchy that was saved in the default implementation of {@link #onSaveInstanceState()},
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* so be sure to call through to super when overriding unless you want to
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* do all restoring of state yourself.
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* @param savedInstanceState The state of the dialog previously saved by
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* {@link #onSaveInstanceState()}.
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*/
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public void onRestoreInstanceState(Bundle savedInstanceState) {
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final Bundle dialogHierarchyState = savedInstanceState.getBundle(DIALOG_HIERARCHY_TAG);
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if (dialogHierarchyState == null) {
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// dialog has never been shown, or onCreated, nothing to restore.
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return;
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}
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dispatchOnCreate(savedInstanceState);
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mWindow.restoreHierarchyState(dialogHierarchyState);
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if (savedInstanceState.getBoolean(DIALOG_SHOWING_TAG)) {
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show();
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}
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}
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/**
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* Retrieve the current Window for the activity. This can be used to
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* directly access parts of the Window API that are not available
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* through Activity/Screen.
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*
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* @return Window The current window, or null if the activity is not
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* visual.
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*/
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public Window getWindow() {
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return mWindow;
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}
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/**
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* Call {@link android.view.Window#getCurrentFocus} on the
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* Window if this Activity to return the currently focused view.
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*
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* @return View The current View with focus or null.
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*
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* @see #getWindow
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* @see android.view.Window#getCurrentFocus
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*/
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public View getCurrentFocus() {
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return mWindow != null ? mWindow.getCurrentFocus() : null;
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}
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/**
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* Finds a view that was identified by the id attribute from the XML that
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* was processed in {@link #onStart}.
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*
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* @param id the identifier of the view to find
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* @return The view if found or null otherwise.
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*/
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public View findViewById(int id) {
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return mWindow.findViewById(id);
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}
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/**
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* Set the screen content from a layout resource. The resource will be
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* inflated, adding all top-level views to the screen.
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*
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* @param layoutResID Resource ID to be inflated.
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*/
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public void setContentView(int layoutResID) {
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mWindow.setContentView(layoutResID);
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}
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/**
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* Set the screen content to an explicit view. This view is placed
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* directly into the screen's view hierarchy. It can itself be a complex
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* view hierarhcy.
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*
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* @param view The desired content to display.
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*/
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public void setContentView(View view) {
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mWindow.setContentView(view);
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}
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/**
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* Set the screen content to an explicit view. This view is placed
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* directly into the screen's view hierarchy. It can itself be a complex
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* view hierarhcy.
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*
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* @param view The desired content to display.
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* @param params Layout parameters for the view.
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*/
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public void setContentView(View view, ViewGroup.LayoutParams params) {
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mWindow.setContentView(view, params);
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}
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/**
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* Add an additional content view to the screen. Added after any existing
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* ones in the screen -- existing views are NOT removed.
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*
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* @param view The desired content to display.
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* @param params Layout parameters for the view.
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*/
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public void addContentView(View view, ViewGroup.LayoutParams params) {
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mWindow.addContentView(view, params);
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}
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/**
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* Set the title text for this dialog's window.
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*
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* @param title The new text to display in the title.
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*/
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public void setTitle(CharSequence title) {
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mWindow.setTitle(title);
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mWindow.getAttributes().setTitle(title);
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}
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/**
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* Set the title text for this dialog's window. The text is retrieved
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* from the resources with the supplied identifier.
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*
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* @param titleId the title's text resource identifier
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*/
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public void setTitle(int titleId) {
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setTitle(mContext.getText(titleId));
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}
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/**
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* A key was pressed down.
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*
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* <p>If the focused view didn't want this event, this method is called.
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*
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* <p>The default implementation consumed the KEYCODE_BACK to later
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* handle it in {@link #onKeyUp}.
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*
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* @see #onKeyUp
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* @see android.view.KeyEvent
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*/
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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if (keyCode == KeyEvent.KEYCODE_BACK) {
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event.startTracking();
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return true;
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}
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return false;
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}
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/**
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* Default implementation of {@link KeyEvent.Callback#onKeyLongPress(int, KeyEvent)
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* KeyEvent.Callback.onKeyLongPress()}: always returns false (doesn't handle
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* the event).
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*/
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public boolean onKeyLongPress(int keyCode, KeyEvent event) {
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return false;
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}
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/**
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* A key was released.
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*
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* <p>The default implementation handles KEYCODE_BACK to close the
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* dialog.
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*
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* @see #onKeyDown
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* @see KeyEvent
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*/
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public boolean onKeyUp(int keyCode, KeyEvent event) {
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if (keyCode == KeyEvent.KEYCODE_BACK && event.isTracking()
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&& !event.isCanceled()) {
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onBackPressed();
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return true;
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}
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return false;
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}
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/**
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* Default implementation of {@link KeyEvent.Callback#onKeyMultiple(int, int, KeyEvent)
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* KeyEvent.Callback.onKeyMultiple()}: always returns false (doesn't handle
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* the event).
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*/
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public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
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return false;
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}
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/**
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* Called when the dialog has detected the user's press of the back
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* key. The default implementation simply cancels the dialog (only if
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* it is cancelable), but you can override this to do whatever you want.
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*/
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public void onBackPressed() {
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if (mCancelable) {
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cancel();
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}
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}
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/**
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* Called when a touch screen event was not handled by any of the views
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* under it. This is most useful to process touch events that happen outside
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* of your window bounds, where there is no view to receive it.
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*
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* @param event The touch screen event being processed.
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* @return Return true if you have consumed the event, false if you haven't.
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* The default implementation will cancel the dialog when a touch
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* happens outside of the window bounds.
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*/
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public boolean onTouchEvent(MotionEvent event) {
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if (mCancelable && mCanceledOnTouchOutside && event.getAction() == MotionEvent.ACTION_DOWN
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&& isOutOfBounds(event)) {
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cancel();
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return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private boolean isOutOfBounds(MotionEvent event) {
|
|
final int x = (int) event.getX();
|
|
final int y = (int) event.getY();
|
|
final int slop = ViewConfiguration.get(mContext).getScaledWindowTouchSlop();
|
|
final View decorView = getWindow().getDecorView();
|
|
return (x < -slop) || (y < -slop)
|
|
|| (x > (decorView.getWidth()+slop))
|
|
|| (y > (decorView.getHeight()+slop));
|
|
}
|
|
|
|
/**
|
|
* Called when the trackball was moved and not handled by any of the
|
|
* views inside of the activity. So, for example, if the trackball moves
|
|
* while focus is on a button, you will receive a call here because
|
|
* buttons do not normally do anything with trackball events. The call
|
|
* here happens <em>before</em> trackball movements are converted to
|
|
* DPAD key events, which then get sent back to the view hierarchy, and
|
|
* will be processed at the point for things like focus navigation.
|
|
*
|
|
* @param event The trackball event being processed.
|
|
*
|
|
* @return Return true if you have consumed the event, false if you haven't.
|
|
* The default implementation always returns false.
|
|
*/
|
|
public boolean onTrackballEvent(MotionEvent event) {
|
|
return false;
|
|
}
|
|
|
|
public void onWindowAttributesChanged(WindowManager.LayoutParams params) {
|
|
if (mDecor != null) {
|
|
mWindowManager.updateViewLayout(mDecor, params);
|
|
}
|
|
}
|
|
|
|
public void onContentChanged() {
|
|
}
|
|
|
|
public void onWindowFocusChanged(boolean hasFocus) {
|
|
}
|
|
|
|
public void onAttachedToWindow() {
|
|
}
|
|
|
|
public void onDetachedFromWindow() {
|
|
}
|
|
|
|
/**
|
|
* Called to process key events. You can override this to intercept all
|
|
* key events before they are dispatched to the window. Be sure to call
|
|
* this implementation for key events that should be handled normally.
|
|
*
|
|
* @param event The key event.
|
|
*
|
|
* @return boolean Return true if this event was consumed.
|
|
*/
|
|
public boolean dispatchKeyEvent(KeyEvent event) {
|
|
if ((mOnKeyListener != null) && (mOnKeyListener.onKey(this, event.getKeyCode(), event))) {
|
|
return true;
|
|
}
|
|
if (mWindow.superDispatchKeyEvent(event)) {
|
|
return true;
|
|
}
|
|
return event.dispatch(this, mDecor != null
|
|
? mDecor.getKeyDispatcherState() : null, this);
|
|
}
|
|
|
|
/**
|
|
* Called to process touch screen events. You can override this to
|
|
* intercept all touch screen events before they are dispatched to the
|
|
* window. Be sure to call this implementation for touch screen events
|
|
* that should be handled normally.
|
|
*
|
|
* @param ev The touch screen event.
|
|
*
|
|
* @return boolean Return true if this event was consumed.
|
|
*/
|
|
public boolean dispatchTouchEvent(MotionEvent ev) {
|
|
if (mWindow.superDispatchTouchEvent(ev)) {
|
|
return true;
|
|
}
|
|
return onTouchEvent(ev);
|
|
}
|
|
|
|
/**
|
|
* Called to process trackball events. You can override this to
|
|
* intercept all trackball events before they are dispatched to the
|
|
* window. Be sure to call this implementation for trackball events
|
|
* that should be handled normally.
|
|
*
|
|
* @param ev The trackball event.
|
|
*
|
|
* @return boolean Return true if this event was consumed.
|
|
*/
|
|
public boolean dispatchTrackballEvent(MotionEvent ev) {
|
|
if (mWindow.superDispatchTrackballEvent(ev)) {
|
|
return true;
|
|
}
|
|
return onTrackballEvent(ev);
|
|
}
|
|
|
|
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
|
|
event.setClassName(getClass().getName());
|
|
event.setPackageName(mContext.getPackageName());
|
|
|
|
LayoutParams params = getWindow().getAttributes();
|
|
boolean isFullScreen = (params.width == LayoutParams.MATCH_PARENT) &&
|
|
(params.height == LayoutParams.MATCH_PARENT);
|
|
event.setFullScreen(isFullScreen);
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onCreatePanelView(int)
|
|
*/
|
|
public View onCreatePanelView(int featureId) {
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onCreatePanelMenu(int, Menu)
|
|
*/
|
|
public boolean onCreatePanelMenu(int featureId, Menu menu) {
|
|
if (featureId == Window.FEATURE_OPTIONS_PANEL) {
|
|
return onCreateOptionsMenu(menu);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onPreparePanel(int, View, Menu)
|
|
*/
|
|
public boolean onPreparePanel(int featureId, View view, Menu menu) {
|
|
if (featureId == Window.FEATURE_OPTIONS_PANEL && menu != null) {
|
|
boolean goforit = onPrepareOptionsMenu(menu);
|
|
return goforit && menu.hasVisibleItems();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onMenuOpened(int, Menu)
|
|
*/
|
|
public boolean onMenuOpened(int featureId, Menu menu) {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onMenuItemSelected(int, MenuItem)
|
|
*/
|
|
public boolean onMenuItemSelected(int featureId, MenuItem item) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onPanelClosed(int, Menu)
|
|
*/
|
|
public void onPanelClosed(int featureId, Menu menu) {
|
|
}
|
|
|
|
/**
|
|
* It is usually safe to proxy this call to the owner activity's
|
|
* {@link Activity#onCreateOptionsMenu(Menu)} if the client desires the same
|
|
* menu for this Dialog.
|
|
*
|
|
* @see Activity#onCreateOptionsMenu(Menu)
|
|
* @see #getOwnerActivity()
|
|
*/
|
|
public boolean onCreateOptionsMenu(Menu menu) {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* It is usually safe to proxy this call to the owner activity's
|
|
* {@link Activity#onPrepareOptionsMenu(Menu)} if the client desires the
|
|
* same menu for this Dialog.
|
|
*
|
|
* @see Activity#onPrepareOptionsMenu(Menu)
|
|
* @see #getOwnerActivity()
|
|
*/
|
|
public boolean onPrepareOptionsMenu(Menu menu) {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onOptionsItemSelected(MenuItem)
|
|
*/
|
|
public boolean onOptionsItemSelected(MenuItem item) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onOptionsMenuClosed(Menu)
|
|
*/
|
|
public void onOptionsMenuClosed(Menu menu) {
|
|
}
|
|
|
|
/**
|
|
* @see Activity#openOptionsMenu()
|
|
*/
|
|
public void openOptionsMenu() {
|
|
mWindow.openPanel(Window.FEATURE_OPTIONS_PANEL, null);
|
|
}
|
|
|
|
/**
|
|
* @see Activity#closeOptionsMenu()
|
|
*/
|
|
public void closeOptionsMenu() {
|
|
mWindow.closePanel(Window.FEATURE_OPTIONS_PANEL);
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onCreateContextMenu(ContextMenu, View, ContextMenuInfo)
|
|
*/
|
|
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
|
|
}
|
|
|
|
/**
|
|
* @see Activity#registerForContextMenu(View)
|
|
*/
|
|
public void registerForContextMenu(View view) {
|
|
view.setOnCreateContextMenuListener(this);
|
|
}
|
|
|
|
/**
|
|
* @see Activity#unregisterForContextMenu(View)
|
|
*/
|
|
public void unregisterForContextMenu(View view) {
|
|
view.setOnCreateContextMenuListener(null);
|
|
}
|
|
|
|
/**
|
|
* @see Activity#openContextMenu(View)
|
|
*/
|
|
public void openContextMenu(View view) {
|
|
view.showContextMenu();
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onContextItemSelected(MenuItem)
|
|
*/
|
|
public boolean onContextItemSelected(MenuItem item) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @see Activity#onContextMenuClosed(Menu)
|
|
*/
|
|
public void onContextMenuClosed(Menu menu) {
|
|
}
|
|
|
|
/**
|
|
* This hook is called when the user signals the desire to start a search.
|
|
*/
|
|
public boolean onSearchRequested() {
|
|
final SearchManager searchManager = (SearchManager) mContext
|
|
.getSystemService(Context.SEARCH_SERVICE);
|
|
|
|
// associate search with owner activity
|
|
final ComponentName appName = getAssociatedActivity();
|
|
if (appName != null) {
|
|
searchManager.startSearch(null, false, appName, null, false);
|
|
dismiss();
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return The activity associated with this dialog, or null if there is no assocaited activity.
|
|
*/
|
|
private ComponentName getAssociatedActivity() {
|
|
Activity activity = mOwnerActivity;
|
|
Context context = getContext();
|
|
while (activity == null && context != null) {
|
|
if (context instanceof Activity) {
|
|
activity = (Activity) context; // found it!
|
|
} else {
|
|
context = (context instanceof ContextWrapper) ?
|
|
((ContextWrapper) context).getBaseContext() : // unwrap one level
|
|
null; // done
|
|
}
|
|
}
|
|
return activity == null ? null : activity.getComponentName();
|
|
}
|
|
|
|
|
|
/**
|
|
* Request that key events come to this dialog. Use this if your
|
|
* dialog has no views with focus, but the dialog still wants
|
|
* a chance to process key events.
|
|
*
|
|
* @param get true if the dialog should receive key events, false otherwise
|
|
* @see android.view.Window#takeKeyEvents
|
|
*/
|
|
public void takeKeyEvents(boolean get) {
|
|
mWindow.takeKeyEvents(get);
|
|
}
|
|
|
|
/**
|
|
* Enable extended window features. This is a convenience for calling
|
|
* {@link android.view.Window#requestFeature getWindow().requestFeature()}.
|
|
*
|
|
* @param featureId The desired feature as defined in
|
|
* {@link android.view.Window}.
|
|
* @return Returns true if the requested feature is supported and now
|
|
* enabled.
|
|
*
|
|
* @see android.view.Window#requestFeature
|
|
*/
|
|
public final boolean requestWindowFeature(int featureId) {
|
|
return getWindow().requestFeature(featureId);
|
|
}
|
|
|
|
/**
|
|
* Convenience for calling
|
|
* {@link android.view.Window#setFeatureDrawableResource}.
|
|
*/
|
|
public final void setFeatureDrawableResource(int featureId, int resId) {
|
|
getWindow().setFeatureDrawableResource(featureId, resId);
|
|
}
|
|
|
|
/**
|
|
* Convenience for calling
|
|
* {@link android.view.Window#setFeatureDrawableUri}.
|
|
*/
|
|
public final void setFeatureDrawableUri(int featureId, Uri uri) {
|
|
getWindow().setFeatureDrawableUri(featureId, uri);
|
|
}
|
|
|
|
/**
|
|
* Convenience for calling
|
|
* {@link android.view.Window#setFeatureDrawable(int, Drawable)}.
|
|
*/
|
|
public final void setFeatureDrawable(int featureId, Drawable drawable) {
|
|
getWindow().setFeatureDrawable(featureId, drawable);
|
|
}
|
|
|
|
/**
|
|
* Convenience for calling
|
|
* {@link android.view.Window#setFeatureDrawableAlpha}.
|
|
*/
|
|
public final void setFeatureDrawableAlpha(int featureId, int alpha) {
|
|
getWindow().setFeatureDrawableAlpha(featureId, alpha);
|
|
}
|
|
|
|
public LayoutInflater getLayoutInflater() {
|
|
return getWindow().getLayoutInflater();
|
|
}
|
|
|
|
/**
|
|
* Sets whether this dialog is cancelable with the
|
|
* {@link KeyEvent#KEYCODE_BACK BACK} key.
|
|
*/
|
|
public void setCancelable(boolean flag) {
|
|
mCancelable = flag;
|
|
}
|
|
|
|
/**
|
|
* Sets whether this dialog is canceled when touched outside the window's
|
|
* bounds. If setting to true, the dialog is set to be cancelable if not
|
|
* already set.
|
|
*
|
|
* @param cancel Whether the dialog should be canceled when touched outside
|
|
* the window.
|
|
*/
|
|
public void setCanceledOnTouchOutside(boolean cancel) {
|
|
if (cancel && !mCancelable) {
|
|
mCancelable = true;
|
|
}
|
|
|
|
mCanceledOnTouchOutside = cancel;
|
|
}
|
|
|
|
/**
|
|
* Cancel the dialog. This is essentially the same as calling {@link #dismiss()}, but it will
|
|
* also call your {@link DialogInterface.OnCancelListener} (if registered).
|
|
*/
|
|
public void cancel() {
|
|
if (mCancelMessage != null) {
|
|
|
|
// Obtain a new message so this dialog can be re-used
|
|
Message.obtain(mCancelMessage).sendToTarget();
|
|
}
|
|
dismiss();
|
|
}
|
|
|
|
/**
|
|
* Set a listener to be invoked when the dialog is canceled.
|
|
* <p>
|
|
* This will only be invoked when the dialog is canceled, if the creator
|
|
* needs to know when it is dismissed in general, use
|
|
* {@link #setOnDismissListener}.
|
|
*
|
|
* @param listener The {@link DialogInterface.OnCancelListener} to use.
|
|
*/
|
|
public void setOnCancelListener(final OnCancelListener listener) {
|
|
if (listener != null) {
|
|
mCancelMessage = mListenersHandler.obtainMessage(CANCEL, listener);
|
|
} else {
|
|
mCancelMessage = null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set a message to be sent when the dialog is canceled.
|
|
* @param msg The msg to send when the dialog is canceled.
|
|
* @see #setOnCancelListener(android.content.DialogInterface.OnCancelListener)
|
|
*/
|
|
public void setCancelMessage(final Message msg) {
|
|
mCancelMessage = msg;
|
|
}
|
|
|
|
/**
|
|
* Set a listener to be invoked when the dialog is dismissed.
|
|
* @param listener The {@link DialogInterface.OnDismissListener} to use.
|
|
*/
|
|
public void setOnDismissListener(final OnDismissListener listener) {
|
|
if (listener != null) {
|
|
mDismissMessage = mListenersHandler.obtainMessage(DISMISS, listener);
|
|
} else {
|
|
mDismissMessage = null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets a listener to be invoked when the dialog is shown.
|
|
* @param listener The {@link DialogInterface.OnShowListener} to use.
|
|
*/
|
|
public void setOnShowListener(OnShowListener listener) {
|
|
if (listener != null) {
|
|
mShowMessage = mListenersHandler.obtainMessage(SHOW, listener);
|
|
} else {
|
|
mShowMessage = null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set a message to be sent when the dialog is dismissed.
|
|
* @param msg The msg to send when the dialog is dismissed.
|
|
*/
|
|
public void setDismissMessage(final Message msg) {
|
|
mDismissMessage = msg;
|
|
}
|
|
|
|
/**
|
|
* By default, this will use the owner Activity's suggested stream type.
|
|
*
|
|
* @see Activity#setVolumeControlStream(int)
|
|
* @see #setOwnerActivity(Activity)
|
|
*/
|
|
public final void setVolumeControlStream(int streamType) {
|
|
getWindow().setVolumeControlStream(streamType);
|
|
}
|
|
|
|
/**
|
|
* @see Activity#getVolumeControlStream()
|
|
*/
|
|
public final int getVolumeControlStream() {
|
|
return getWindow().getVolumeControlStream();
|
|
}
|
|
|
|
/**
|
|
* Sets the callback that will be called if a key is dispatched to the dialog.
|
|
*/
|
|
public void setOnKeyListener(final OnKeyListener onKeyListener) {
|
|
mOnKeyListener = onKeyListener;
|
|
}
|
|
|
|
private static final class ListenersHandler extends Handler {
|
|
private WeakReference<DialogInterface> mDialog;
|
|
|
|
public ListenersHandler(Dialog dialog) {
|
|
mDialog = new WeakReference<DialogInterface>(dialog);
|
|
}
|
|
|
|
@Override
|
|
public void handleMessage(Message msg) {
|
|
switch (msg.what) {
|
|
case DISMISS:
|
|
((OnDismissListener) msg.obj).onDismiss(mDialog.get());
|
|
break;
|
|
case CANCEL:
|
|
((OnCancelListener) msg.obj).onCancel(mDialog.get());
|
|
break;
|
|
case SHOW:
|
|
((OnShowListener) msg.obj).onShow(mDialog.get());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|