blob: 25c837b6693cc86ff2f9629f81a01daa49cc681f [file] [log] [blame]
/*
* Copyright (C) 2008 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 com.android.music;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.Checkable;
import android.widget.RelativeLayout;
/**
* A special variation of RelativeLayout that can be used as a checkable object.
* This allows it to be used as the top-level view of a list view item, which
* also supports checking. Otherwise, it works identically to a RelativeLayout.
*/
public class CheckableRelativeLayout extends RelativeLayout implements Checkable {
private boolean mChecked;
private static final int[] CHECKED_STATE_SET = {
android.R.attr.state_checked
};
public CheckableRelativeLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected int[] onCreateDrawableState(int extraSpace) {
final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
if (isChecked()) {
mergeDrawableStates(drawableState, CHECKED_STATE_SET);
}
return drawableState;
}
public void toggle() {
setChecked(!mChecked);
}
public boolean isChecked() {
return mChecked;
}
public void setChecked(boolean checked) {
if (mChecked != checked) {
mChecked = checked;
refreshDrawableState();
}
}
}