| /* |
| * 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 android.support.v17.leanback.widget; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.widget.Checkable; |
| import android.widget.ImageView; |
| |
| /** |
| * ImageView that supports Checkable states. |
| */ |
| class CheckableImageView extends ImageView implements Checkable { |
| |
| private boolean mChecked; |
| |
| private static final int[] CHECKED_STATE_SET = { android.R.attr.state_checked }; |
| |
| public CheckableImageView(Context context) { |
| this(context, null); |
| } |
| |
| public CheckableImageView(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public CheckableImageView(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| } |
| |
| @Override |
| public int[] onCreateDrawableState(final int extraSpace) { |
| final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); |
| if (isChecked()) { |
| mergeDrawableStates(drawableState, CHECKED_STATE_SET); |
| } |
| return drawableState; |
| } |
| |
| @Override |
| public void toggle() { |
| setChecked(!mChecked); |
| } |
| |
| @Override |
| public boolean isChecked() { |
| return mChecked; |
| } |
| |
| @Override |
| public void setChecked(final boolean checked) { |
| if (mChecked != checked) { |
| mChecked = checked; |
| refreshDrawableState(); |
| } |
| } |
| |
| } |