1 /* 2 * Copyright (C) 2013 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 com.android.wallpaperpicker; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.widget.Checkable; 22 import android.widget.FrameLayout; 23 24 public class CheckableFrameLayout extends FrameLayout implements Checkable { 25 private static final int[] CHECKED_STATE_SET = { android.R.attr.state_checked }; 26 boolean mChecked; 27 CheckableFrameLayout(Context context)28 public CheckableFrameLayout(Context context) { 29 super(context); 30 } 31 CheckableFrameLayout(Context context, AttributeSet attrs)32 public CheckableFrameLayout(Context context, AttributeSet attrs) { 33 super(context, attrs); 34 } 35 CheckableFrameLayout(Context context, AttributeSet attrs, int defStyle)36 public CheckableFrameLayout(Context context, AttributeSet attrs, int defStyle) { 37 super(context, attrs, defStyle); 38 } 39 isChecked()40 public boolean isChecked() { 41 return mChecked; 42 } 43 setChecked(boolean checked)44 public void setChecked(boolean checked) { 45 if (checked != mChecked) { 46 mChecked = checked; 47 refreshDrawableState(); 48 } 49 } 50 toggle()51 public void toggle() { 52 setChecked(!mChecked); 53 } 54 55 @Override onCreateDrawableState(int extraSpace)56 protected int[] onCreateDrawableState(int extraSpace) { 57 final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); 58 if (isChecked()) { 59 mergeDrawableStates(drawableState, CHECKED_STATE_SET); 60 } 61 return drawableState; 62 } 63 } 64