1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.support.v7.preference; 18 19 import static android.support.annotation.RestrictTo.Scope.LIBRARY_GROUP; 20 21 import android.content.Context; 22 import android.support.annotation.RestrictTo; 23 import android.util.AttributeSet; 24 import android.widget.LinearLayout; 25 26 /** 27 * Custom LinearLayout that does not propagate the pressed state down to its children. 28 * By default, the pressed state is propagated to all the children that are not clickable 29 * or long-clickable. 30 * @hide 31 */ 32 @RestrictTo(LIBRARY_GROUP) 33 public class UnPressableLinearLayout extends LinearLayout { UnPressableLinearLayout(Context context)34 public UnPressableLinearLayout(Context context) { 35 this(context, null); 36 } 37 UnPressableLinearLayout(Context context, AttributeSet attrs)38 public UnPressableLinearLayout(Context context, AttributeSet attrs) { 39 super(context, attrs); 40 } 41 42 @Override dispatchSetPressed(boolean pressed)43 protected void dispatchSetPressed(boolean pressed) { 44 // Skip dispatching the pressed key state to the children so that they don't trigger any 45 // pressed state animation on their stateful drawables. 46 } 47 } 48