| /* |
| * 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 com.android.setupwizardlib.test.util; |
| |
| import android.app.Activity; |
| import android.app.Application; |
| import android.app.Instrumentation; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.support.annotation.StyleRes; |
| import android.support.test.InstrumentationRegistry; |
| import android.view.View; |
| import android.view.View.MeasureSpec; |
| |
| public class DrawingTestHelper { |
| |
| /** |
| * Creates an activity of which to inflate views and drawables for drawing tests. This method |
| * will return an instance of AppCompatActivity which allows testing of drawing behavior |
| * injected by support libraries (like drawable tinting) as well. |
| */ |
| public static Activity createCanvasActivity(@StyleRes int theme) |
| throws IllegalAccessException, InstantiationException { |
| final Context context = InstrumentationRegistry.getTargetContext(); |
| final Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation(); |
| |
| final Intent intent = new Intent(context, DrawingTestActivity.class); |
| final Activity activity = instrumentation.newActivity( |
| DrawingTestActivity.class, |
| context, |
| null, /* token */ |
| new Application(), |
| intent, |
| new ActivityInfo(), |
| "", /* title */ |
| null, /* parent */ |
| null, /* id */ |
| null /* lastNonConfigurationInstance */); |
| instrumentation.callActivityOnCreate(activity, null); |
| activity.setTheme(theme); |
| return activity; |
| } |
| |
| private final int mWidth; |
| private final int mHeight; |
| private final Canvas mCanvas; |
| private final Bitmap mBitmap; |
| |
| public DrawingTestHelper(int width, int height) { |
| mWidth = width; |
| mHeight = height; |
| |
| mBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); |
| mCanvas = new Canvas(mBitmap); |
| } |
| |
| public void drawView(View view) { |
| view.measure( |
| MeasureSpec.makeMeasureSpec(mWidth, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(mHeight, MeasureSpec.EXACTLY)); |
| view.layout(0, 0, mWidth, mHeight); |
| view.draw(mCanvas); |
| } |
| |
| public int[] getPixels() { |
| int[] out = new int[mWidth * mHeight]; |
| mBitmap.getPixels(out, 0, mWidth, 0, 0, mWidth, mHeight); |
| return out; |
| } |
| |
| public int getPixel(int x, int y) { |
| return mBitmap.getPixel(x, y); |
| } |
| } |