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/*
* Copyright (C) 2015 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 androidx.leanback.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.Checkable;
import android.widget.ImageView;
/**
* ImageView that supports Checkable states.
*/
class CheckableImageView extends ImageView implements Checkable {
private boolean mChecked;
private static final int[] CHECKED_STATE_SET = { android.R.attr.state_checked };
public CheckableImageView(Context context) {
this(context, null);
}
public CheckableImageView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public CheckableImageView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
public int[] onCreateDrawableState(final int extraSpace) {
final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
if (isChecked()) {
mergeDrawableStates(drawableState, CHECKED_STATE_SET);
}
return drawableState;
}
@Override
public void toggle() {
setChecked(!mChecked);
}
@Override
public boolean isChecked() {
return mChecked;
}
@Override
public void setChecked(final boolean checked) {
if (mChecked != checked) {
mChecked = checked;
refreshDrawableState();
}
}
}