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/*
* 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 android.testing;
import android.content.pm.ApplicationInfo;
import android.graphics.PixelFormat;
import android.support.test.InstrumentationRegistry;
import android.view.View;
import android.view.WindowManager;
import android.view.WindowManager.LayoutParams;
/**
* Utilities to make testing views easier.
*/
public class ViewUtils {
/**
* Causes the view (and its children) to have {@link View#onAttachedToWindow()} called.
*
* This is currently done by adding the view to a window.
*/
public static void attachView(View view) {
// Make sure hardware acceleration isn't turned on.
view.getContext().getApplicationInfo().flags &=
~(ApplicationInfo.FLAG_HARDWARE_ACCELERATED);
WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT,
LayoutParams.TYPE_APPLICATION_OVERLAY,
0, PixelFormat.TRANSLUCENT);
view.getContext().getSystemService(WindowManager.class).addView(view, lp);
}
/**
* Causes the view (and its children) to have {@link View#onDetachedFromWindow()} called.
*
* This is currently done by removing the view from a window.
*/
public static void detachView(View view) {
view.getContext().getSystemService(WindowManager.class).removeViewImmediate(view);
}
}
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