| /* |
| * Copyright 2013 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.example.android.customchoicelist; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.view.View; |
| import android.widget.Checkable; |
| import android.widget.LinearLayout; |
| |
| /** |
| * This is a simple wrapper for {@link android.widget.LinearLayout} that implements the {@link android.widget.Checkable} |
| * interface by keeping an internal 'checked' state flag. |
| * <p> |
| * This can be used as the root view for a custom list item layout for |
| * {@link android.widget.AbsListView} elements with a |
| * {@link android.widget.AbsListView#setChoiceMode(int) choiceMode} set. |
| */ |
| public class CheckableLinearLayout extends LinearLayout implements Checkable { |
| private static final int[] CHECKED_STATE_SET = {android.R.attr.state_checked}; |
| |
| private boolean mChecked = false; |
| |
| public CheckableLinearLayout(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public boolean isChecked() { |
| return mChecked; |
| } |
| |
| public void setChecked(boolean b) { |
| if (b != mChecked) { |
| mChecked = b; |
| refreshDrawableState(); |
| } |
| } |
| |
| public void toggle() { |
| setChecked(!mChecked); |
| } |
| |
| @Override |
| public int[] onCreateDrawableState(int extraSpace) { |
| final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); |
| if (isChecked()) { |
| mergeDrawableStates(drawableState, CHECKED_STATE_SET); |
| } |
| return drawableState; |
| } |
| } |