玩转Android Camera开发(二):使用TextureView和SurfaceTexture预览Camera 基础拍照demo

 1 <span style="font-family:Comic Sans MS;font-size:18px;">package org.yanzi.camera.preview;  
 2   
 3 import org.yanzi.camera.CameraInterface;  
 4   
 5 import android.content.Context;  
 6 import android.graphics.PixelFormat;  
 7 import android.graphics.SurfaceTexture;  
 8 import android.util.AttributeSet;  
 9 import android.util.Log;  
10 import android.view.SurfaceHolder;  
11 import android.view.SurfaceView;  
12 import android.view.TextureView;  
13   
14 public class CameraTextureView extends TextureView implements TextureView.SurfaceTextureListener {  
15     private static final String TAG = "yanzi";  
16     Context mContext;  
17     SurfaceTexture mSurface;  
18     public CameraTextureView(Context context, AttributeSet attrs) {  
19         super(context, attrs);  
20         // TODO Auto-generated constructor stub  
21         mContext = context;  
22         this.setSurfaceTextureListener(this);  
23     }  
24     @Override  
25     public void onSurfaceTextureAvailable(SurfaceTexture surface, int width,  
26             int height) {  
27         // TODO Auto-generated method stub  
28         Log.i(TAG, "onSurfaceTextureAvailable...");  
29         mSurface = surface;  
30 //      CameraInterface.getInstance().doStartPreview(surface, 1.33f);  
31     }  
32     @Override  
33     public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {  
34         // TODO Auto-generated method stub  
35         Log.i(TAG, "onSurfaceTextureDestroyed...");  
36         CameraInterface.getInstance().doStopCamera();  
37         return true;  
38     }  
39     @Override  
40     public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width,  
41             int height) {  
42         // TODO Auto-generated method stub  
43         Log.i(TAG, "onSurfaceTextureSizeChanged...");  
44     }  
45     @Override  
46     public void onSurfaceTextureUpdated(SurfaceTexture surface) {  
47         // TODO Auto-generated method stub  
48         Log.i(TAG, "onSurfaceTextureUpdated...");  
49           
50     }  
51       
52     /* 让Activity能得到TextureView的SurfaceTexture 
53      * @see android.view.TextureView#getSurfaceTexture() 
54      */  
55     public SurfaceTexture _getSurfaceTexture(){  
56         return mSurface;  
57     }  
58 }  
59 </span>