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/*
* Copyright (C) 2011 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.view;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
/**
* A View that will throw a RuntimeException if onAttachedToWindow and
* onDetachedFromWindow is called in the wrong order for ViewAttachTest
*/
public class ViewAttachView extends View {
public static final String TAG = "OnAttachedTest";
private boolean attached;
public ViewAttachView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(attrs, defStyle);
}
public ViewAttachView(Context context, AttributeSet attrs) {
super(context, attrs);
init(attrs, 0);
}
public ViewAttachView(Context context) {
super(context);
init(null, 0);
}
private void init(AttributeSet attrs, int defStyle) {
SystemClock.sleep(2000);
}
@Override
protected void onAttachedToWindow() {
Log.d(TAG, "onAttachedToWindow");
super.onAttachedToWindow();
if (attached) {
throw new RuntimeException("OnAttachedToWindow called more than once in a row");
}
attached = true;
}
@Override
protected void onDetachedFromWindow() {
Log.d(TAG, "onDetachedFromWindow");
super.onDetachedFromWindow();
if (!attached) {
throw new RuntimeException(
"onDetachedFromWindowcalled without prior call to OnAttachedToWindow");
}
attached = false;
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawColor(Color.BLUE);
}
}
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