M7350/base/core/java/android/widget/SpinnerAdapter.java
2024-09-09 08:52:07 +00:00

44 lines
1.8 KiB
Java

/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.widget;
import android.view.View;
import android.view.ViewGroup;
/**
* Extended {@link Adapter} that is the bridge between a
* {@link android.widget.Spinner} and its data. A spinner adapter allows to
* define two different views: one that shows the data in the spinner itself and
* one that shows the data in the drop down list when the spinner is pressed.</p>
*/
public interface SpinnerAdapter extends Adapter {
/**
* <p>Get a {@link android.view.View} that displays in the drop down popup
* the data at the specified position in the data set.</p>
*
* @param position index of the item whose view we want.
* @param convertView the old view to reuse, if possible. Note: You should
* check that this view is non-null and of an appropriate type before
* using. If it is not possible to convert this view to display the
* correct data, this method can create a new view.
* @param parent the parent that this view will eventually be attached to
* @return a {@link android.view.View} corresponding to the data at the
* specified position.
*/
public View getDropDownView(int position, View convertView, ViewGroup parent);
}