ギャラリービューで選択した画像から画像データを取得する方法は？

Question

私は電話のギャラリーのすべてのjpegをリストする次のコードを持っています。それはうまく動作しますが、私は画像を選択したときに、選択した画像のデータで画像処理アクティビティの意図を起こしたいと思います。何か案は？事前に

感謝マット

Button useGallery = (Button)findViewById(R.id.loadfromgallery); 
     useGallery.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View arg0) { 

       Intent photoPickerIntent = new Intent(Intent.ACTION_PICK); 
       photoPickerIntent.setType("image/*"); 
       startActivityForResult(photoPickerIntent, SELECT_PHOTO); 
      }}) ; 



    } 


    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) { 
     super.onActivityResult(requestCode, resultCode, imageReturnedIntent); 

     switch(requestCode) { 
     case SELECT_PHOTO: 
      if(resultCode == RESULT_OK){ 
       Uri selectedImage = imageReturnedIntent.getData(); 
       InputStream imageStream = null; 
       try { 
        imageStream = getContentResolver().openInputStream(selectedImage); 
       } catch (FileNotFoundException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 
       Bitmap yourSelectedImage = BitmapFactory.decodeStream(imageStream); 


       if(yourSelectedImage != null){ 
       Log.e(TAG,"pic ok"); 
       }else{ 
        Log.e(TAG,"pic not ok"); 
       } 
      } 
     } 
    } 

Answer 1

は、私はこのようにそれをやった:)

protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) { 
      super.onActivityResult(requestCode, resultCode, imageReturnedIntent); 

      switch(requestCode) { 
      case SELECT_PHOTO: 
       if(resultCode == RESULT_OK){ 
        Uri selectedImage = imageReturnedIntent.getData(); 
        InputStream imageStream = null; 
        try { 
         imageStream = getContentResolver().openInputStream(selectedImage); 
        } catch (FileNotFoundException e) { 
         // TODO Auto-generated catch block 
         e.printStackTrace(); 
        } 
        Bitmap yourSelectedImage = BitmapFactory.decodeStream(imageStream); 
        Intent intent = new Intent(mContext, DisplayUndistortedBitmapFromGalleryActivity.class); 
        intent.setData(selectedImage); 
        startActivity(intent); 

        if(yourSelectedImage != null){ 
        Log.e(TAG,"pic ok"); 
        }else{ 
         Log.e(TAG,"pic not ok"); 
        } 
       } 
      } 

を。

public class DisplayUndistortedBitmapFromGalleryActivity extends Activity { 

    private static final String TAG = "*********DUBFGActivity"; 
    private Context mContext = this; 
    Uri uri; 
    private Bitmap mbitmap = null; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     requestWindowFeature(Window.FEATURE_NO_TITLE); 
     getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
       WindowManager.LayoutParams.FLAG_FULLSCREEN); 


     uri = getIntent().getData(); 
     if(uri != null){ 
      Log.e(TAG, "uri ok"); 
     }else { 
      Log.e(TAG, "uri not ok"); 
     } 


     try { 
       mbitmap = Media.getBitmap(getContentResolver(), uri); 
      //setMbitmap(bitmap); 
     } catch (FileNotFoundException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 

     if(mbitmap == null){ 
      Log.e(TAG,"mbitmap is null"); 
     }else{ 
      Log.e(TAG,"mbitmap is not null"); 
     }