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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 com.android.settings;
import android.content.Context;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.View;
import android.widget.Checkable;
import android.widget.LinearLayout;
public class CheckableLinearLayout extends LinearLayout implements Checkable {
private boolean mChecked;
private float mDisabledAlpha;
public CheckableLinearLayout(Context context, AttributeSet attrs) {
super(context, attrs);
TypedValue alpha = new TypedValue();
context.getTheme().resolveAttribute(android.R.attr.disabledAlpha, alpha, true);
mDisabledAlpha = alpha.getFloat();
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
final int N = getChildCount();
for (int i = 0; i < N; i++) {
getChildAt(i).setAlpha(enabled ? 1 : mDisabledAlpha);
}
}
@Override
public void setChecked(boolean checked) {
mChecked = checked;
updateChecked();
}
@Override
public boolean isChecked() {
return mChecked;
}
@Override
public void toggle() {
setChecked(!mChecked);
}
private void updateChecked() {
final int N = getChildCount();
for (int i = 0; i < N; i++) {
View child = getChildAt(i);
if (child instanceof Checkable) {
((Checkable) child).setChecked(mChecked);
}
}
}
}
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