1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.view; 18 19 import com.android.frameworks.coretests.R; 20 21 import android.os.Bundle; 22 import android.app.Activity; 23 import android.widget.LinearLayout; 24 import android.widget.ScrollView; 25 import android.view.ViewGroup; 26 import android.view.View; 27 import android.view.Display; 28 import android.view.ViewConfiguration; 29 30 /** 31 * This activity contains two Views, one as big as the screen, one much larger. The large one 32 * should not be able to activate its drawing cache. 33 */ 34 public class BigCache extends Activity { 35 @Override 36 protected void onCreate(Bundle icicle) { 37 super.onCreate(icicle); 38 39 final LinearLayout testBed = new LinearLayout(this); 40 testBed.setOrientation(LinearLayout.VERTICAL); 41 testBed.setLayoutParams(new ViewGroup.LayoutParams( 42 ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); 43 44 final int cacheSize = ViewConfiguration.getMaximumDrawingCacheSize(); 45 final Display display = getWindowManager().getDefaultDisplay(); 46 final int screenWidth = display.getWidth(); 47 final int screenHeight = display.getHeight(); 48 49 final View tiny = new View(this); 50 tiny.setId(R.id.a); 51 tiny.setBackgroundColor(0xFFFF0000); 52 tiny.setLayoutParams(new LinearLayout.LayoutParams(screenWidth, screenHeight)); 53 54 final View large = new View(this); 55 large.setId(R.id.b); 56 large.setBackgroundColor(0xFF00FF00); 57 // Compute the height of the view assuming a cache size based on ARGB8888 58 final int height = 2 * (cacheSize / 2) / screenWidth; 59 large.setLayoutParams(new LinearLayout.LayoutParams(screenWidth, height)); 60 61 final ScrollView scroller = new ScrollView(this); 62 scroller.setLayoutParams(new ViewGroup.LayoutParams( 63 ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); 64 65 testBed.addView(tiny); 66 testBed.addView(large); 67 scroller.addView(testBed); 68 69 setContentView(scroller); 70 } 71 } 72
