Android相机捕获

Question

我从SurfaceView拍照现在我想在另一个活动中显示保存在图像视图中的图片。我如何将picutre移动到另一个活动，然后重新启动相机拍摄一张新照片。

ShutterCallback myShutterCallback = new ShutterCallback(){ 

      @Override 
      public void onShutter() { 
       // TODO Auto-generated method stub 

      }}; 

     PictureCallback myPictureCallback_RAW = new PictureCallback(){ 

      @Override 
      public void onPictureTaken(byte[] arg0, Camera arg1) { 
       // TODO Auto-generated method stub 

      }}; 

     PictureCallback myPictureCallback_JPG = new PictureCallback(){ 

      @Override 
      public void onPictureTaken(byte[] arg0, Camera arg1) { 
       // TODO Auto-generated method stub 
       Bitmap bitmapPicture 
        = BitmapFactory.decodeByteArray(arg0, 0, arg0.length); 
      }}; 

Answer 1

public File getOutputMediaFile() { 
     File imagesFolder = new File(Environment 
       .getExternalStorageDirectory() + "/Orecs"); 
     if (!imagesFolder.exists()) { 
      imagesFolder.mkdirs(); 
     } 

     random = new Random(); 
     seqNo = random.nextInt(1000000); 


     String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss") 
     .format(new Date()); 

     photoName = "IMG_" + timeStamp; 

     File mediaFile; 
     mediaFile = new File(imagesFolder, "IMG_" + timeStamp + ".jpg"); 

     return mediaFile; 
    } 

File pictureFile; 

PictureCallback jpegCallback = new PictureCallback() { 
     public void onPictureTaken(byte[] data, Camera camera) { 
      pictureFile = getOutputMediaFile(); 
      if (pictureFile == null) { 
       return; 
      } 
      Log.d("data: ", data+""); 


       maindata = data; 


       new PostTask().execute(); 






     } 
    }; 


private class PostTask extends AsyncTask<String, Integer, Bitmap> { 
      @Override 
      protected void onPreExecute() { 
       super.onPreExecute(); 

      } 

      @Override 
      protected Bitmap doInBackground(String... params) { 

       Log.d("In background", "sfdsdfsd"); 
      // pictureFile = getOutputMediaFile(); 


       Log.d("In background", "wrerwe"); 

       pathFile = pictureFile.getPath(); 

       File f = new File(pathFile); 
       Matrix mat = new Matrix(); 
       Bitmap bmp = BitmapFactory.decodeByteArray(maindata, 0, maindata.length); 
       Bitmap bmpPic = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), mat, true); 

       bmpPic = ShrinkBitmap(maindata, 800, 700); 

       int rotateangle =90; 
       mat.setRotate(rotateangle, (float) bmpPic.getWidth()/2, (float) bmpPic.getHeight()/2); 

       bmpPic1 = Bitmap.createBitmap(bmpPic, 0, 0, bmpPic.getWidth(), bmpPic.getHeight(), mat, true); 


       return bmpPic1; 
      } 


      @Override 
      protected void onPostExecute(Bitmap result) { 
       super.onPostExecute(result); 

       ivImg.setImageBitmap(result); 
      } 
    } 




Intent i = new Intent(currentactivity.this, nextact.class); 


      System.out.println("Main Data: " +pathFile); 
      i.putExtra("bytedata", pathFile); 
startActivity(i); 

注：在的AsyncTask，见pathFile变量。有意将此发送给其他活动。 得到它该活动，并转换成位图：

Intent i = getIntent(); 
     pathFile = i.getStringExtra("bytedata"); 

File f = new File(pathFile); 
         Matrix mat = new Matrix(); 
         Bitmap bmp; 
         try { 
          bmp = BitmapFactory.decodeStream(new FileInputStream(f), null, null); 


         Bitmap bmpPic = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), mat, true);