1 /* 2 * Copyright (C) 2008 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 com.example.android.apis.graphics; 18 19 import android.content.Context; 20 import android.graphics.*; 21 import android.graphics.drawable.Drawable; 22 import android.graphics.drawable.PictureDrawable; 23 import android.os.Bundle; 24 import android.view.View; 25 26 import java.io.*; 27 28 public class Pictures extends GraphicsActivity { 29 30 @Override 31 protected void onCreate(Bundle savedInstanceState) { 32 super.onCreate(savedInstanceState); 33 setContentView(new SampleView(this)); 34 } 35 36 private static class SampleView extends View { 37 private Picture mPicture; 38 private Drawable mDrawable; 39 40 static void drawSomething(Canvas canvas) { 41 Paint p = new Paint(Paint.ANTI_ALIAS_FLAG); 42 43 p.setColor(0x88FF0000); 44 canvas.drawCircle(50, 50, 40, p); 45 46 p.setColor(Color.GREEN); 47 p.setTextSize(30); 48 canvas.drawText("Pictures", 60, 60, p); 49 } 50 51 public SampleView(Context context) { 52 super(context); 53 setFocusable(true); 54 setFocusableInTouchMode(true); 55 56 mPicture = new Picture(); 57 drawSomething(mPicture.beginRecording(200, 100)); 58 mPicture.endRecording(); 59 60 mDrawable = new PictureDrawable(mPicture); 61 } 62 63 @Override protected void onDraw(Canvas canvas) { 64 canvas.drawColor(Color.WHITE); 65 66 canvas.drawPicture(mPicture); 67 68 canvas.drawPicture(mPicture, new RectF(0, 100, getWidth(), 200)); 69 70 mDrawable.setBounds(0, 200, getWidth(), 300); 71 mDrawable.draw(canvas); 72 73 ByteArrayOutputStream os = new ByteArrayOutputStream(); 74 mPicture.writeToStream(os); 75 InputStream is = new ByteArrayInputStream(os.toByteArray()); 76 canvas.translate(0, 300); 77 canvas.drawPicture(Picture.createFromStream(is)); 78 } 79 } 80 } 81 82
