| /* |
| * Copyright (C) 2017 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.newbubble; |
| |
| import android.content.Context; |
| import android.content.res.ColorStateList; |
| import android.support.v4.view.AccessibilityDelegateCompat; |
| import android.support.v4.view.ViewCompat; |
| import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat; |
| import android.support.v7.widget.AppCompatButton; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.view.accessibility.AccessibilityEvent; |
| import android.widget.Checkable; |
| |
| /** |
| * A {@link android.widget.Button Button} that implements {@link Checkable} and propagates the |
| * checkable state |
| */ |
| public class NewCheckableButton extends AppCompatButton implements Checkable { |
| |
| private boolean mChecked; |
| |
| public NewCheckableButton(Context context) { |
| this(context, null); |
| } |
| |
| public NewCheckableButton(Context context, AttributeSet attrs) { |
| this(context, attrs, android.R.attr.imageButtonStyle); |
| } |
| |
| public NewCheckableButton(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| |
| ViewCompat.setAccessibilityDelegate( |
| this, |
| new AccessibilityDelegateCompat() { |
| @Override |
| public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) { |
| super.onInitializeAccessibilityEvent(host, event); |
| event.setChecked(isChecked()); |
| } |
| |
| @Override |
| public void onInitializeAccessibilityNodeInfo( |
| View host, AccessibilityNodeInfoCompat info) { |
| super.onInitializeAccessibilityNodeInfo(host, info); |
| info.setCheckable(true); |
| info.setChecked(isChecked()); |
| } |
| }); |
| } |
| |
| @Override |
| public void setChecked(boolean checked) { |
| if (mChecked != checked) { |
| mChecked = checked; |
| int newColor = |
| checked |
| ? getContext().getColor(R.color.bubble_button_color_blue) |
| : getContext().getColor(R.color.bubble_button_color_grey); |
| setTextColor(newColor); |
| setCompoundDrawableTintList(ColorStateList.valueOf(newColor)); |
| } |
| } |
| |
| @Override |
| public boolean isChecked() { |
| return mChecked; |
| } |
| |
| @Override |
| public void toggle() { |
| setChecked(!mChecked); |
| } |
| } |