UnPressableLinearLayout.java

/*
 * Copyright (C) 2016 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.support.v7.preference;

import static android.support.annotation.RestrictTo.Scope.LIBRARY_GROUP;

import android.content.Context;
import android.support.annotation.RestrictTo;
import android.util.AttributeSet;
import android.widget.LinearLayout;

/**
 * Custom LinearLayout that does not propagate the pressed state down to its children.
 * By default, the pressed state is propagated to all the children that are not clickable
 * or long-clickable.
 * @hide
 */
@RestrictTo(LIBRARY_GROUP)
public class UnPressableLinearLayout extends LinearLayout {
    public UnPressableLinearLayout(Context context) {
        this(context, null);
    }

    public UnPressableLinearLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    protected void dispatchSetPressed(boolean pressed) {
        // Skip dispatching the pressed key state to the children so that they don't trigger any
        // pressed state animation on their stateful drawables.
    }
}