1 /* 2 * Copyright (C) 2009 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 public class Main { 18 Bitmap mBitmap1, mBitmap2, mBitmap3, mBitmap4; 19 20 public static void sleep(int ms) { 21 try { 22 Thread.sleep(ms); 23 } catch (InterruptedException ie) { 24 System.err.println("sleep interrupted"); 25 } 26 } 27 28 public static void main(String args[]) { 29 System.out.println("start"); 30 31 Main main = new Main(); 32 main.run(); 33 34 sleep(1000); 35 System.out.println("done"); 36 } 37 38 public void run() { 39 createBitmaps(); 40 41 System.gc(); 42 sleep(250); 43 44 mBitmap2.drawAt(0, 0); 45 46 System.out.println("nulling 1"); 47 mBitmap1 = null; 48 System.gc(); 49 sleep(500); 50 51 System.out.println("nulling 2"); 52 mBitmap2 = null; 53 System.gc(); 54 sleep(500); 55 56 System.out.println("nulling 3"); 57 mBitmap3 = null; 58 System.gc(); 59 sleep(500); 60 61 System.out.println("nulling 4"); 62 mBitmap4 = null; 63 System.gc(); 64 sleep(500); 65 66 Bitmap.shutDown(); 67 } 68 69 /* 70 * Create bitmaps. 71 * 72 * bitmap1 is 10x10 and unique 73 * bitmap2 and bitmap3 are 20x20 and share the same storage. 74 * bitmap4 is just another reference to bitmap3 75 * 76 * When we return there should be no local refs lurking on the stack. 77 */ 78 public void createBitmaps() { 79 Bitmap.NativeWrapper dataA = Bitmap.allocNativeStorage(10, 10); 80 Bitmap.NativeWrapper dataB = Bitmap.allocNativeStorage(20, 20); 81 mBitmap1 = new Bitmap("one", 10, 10, dataA); 82 mBitmap2 = new Bitmap("two", 20, 20, dataB); 83 mBitmap3 = mBitmap4 = new Bitmap("three/four", 20, 20, dataB); 84 } 85 } 86 87
