54 lines
2.0 KiB
Java
54 lines
2.0 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package android.testing;
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import android.content.pm.ApplicationInfo;
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import android.graphics.PixelFormat;
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import android.support.test.InstrumentationRegistry;
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import android.view.View;
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import android.view.WindowManager;
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import android.view.WindowManager.LayoutParams;
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/**
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* Utilities to make testing views easier.
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*/
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public class ViewUtils {
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/**
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* Causes the view (and its children) to have {@link View#onAttachedToWindow()} called.
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*
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* This is currently done by adding the view to a window.
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*/
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public static void attachView(View view) {
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// Make sure hardware acceleration isn't turned on.
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view.getContext().getApplicationInfo().flags &=
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~(ApplicationInfo.FLAG_HARDWARE_ACCELERATED);
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WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
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LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT,
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LayoutParams.TYPE_APPLICATION_OVERLAY,
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0, PixelFormat.TRANSLUCENT);
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view.getContext().getSystemService(WindowManager.class).addView(view, lp);
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}
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/**
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* Causes the view (and its children) to have {@link View#onDetachedFromWindow()} called.
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*
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* This is currently done by removing the view from a window.
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*/
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public static void detachView(View view) {
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view.getContext().getSystemService(WindowManager.class).removeViewImmediate(view);
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}
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}
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