android 照相以及关于自动生成的图片分辨率和面积太小问题

String SD_CARD_TEMP_DIR = Environment.getExternalStorageDirectory() + File.separator + "tmpPhoto.jpg";
Intent takePictureFromCameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
takePictureFromCameraIntent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, Uri.fromFile(new   File(SD_CARD_TEMP_DIR)));
startActivityForResult(takePictureFromCameraIntent, TAKE_PICTURE_WITH_CAMERA);

public void onActivityResult(int requestCode, int resultCode, Intent data) {       
super.onActivityResult(requestCode, resultCode, data);       
//      Picture taken from camera       
  if (requestCode == TAKE_PICTURE_WITH_CAMERA) {               
     if (resultCode == Activity.RESULT_OK) {                      
       // http://code.google.com/p/android/issues/detail?id=1480                       
       //Toast.makeText(AddPhotos.this, "" + data, Toast.LENGTH_SHORT).show();                      
        // on activity return                      
         File f = new File(SD_CARD_TEMP_DIR);                      
          try {                           
                Uri capturedImage =     Uri.parse(android.provider.MediaStore.Images.Media.insertImage(getContentResolver(),  f.getAbsolutePath(), null, null));                              
                 Log.i("camera", "Selected image: " + capturedImage.toString());                           
                 f.delete();                       
                 }
         catch (FileNotFoundException e) {                           
         // TODO Auto-generated catch block                          
          e.printStackTrace();                       
          }              
           }               
      else {                       
      Log.i("Camera", "Result code was " + resultCode);               
      }       
      }           
      }

http://code.google.com/p/android/issues/detail?id=1480
讨论的很有意义
Well, now on 1.5, the documentation has been updated: "If the EXTRA_OUTPUT is not
present, then a small sized image is returned as a Bitmap object in the extra field.
If the EXTRA_OUTPUT is present, then the full-sized image will be written to
the Uri value of EXTRA_OUTPUT."

But using the following piece of code:

    private void takePic2() {
        Intent imageCaptureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        imageCaptureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
Uri.fromFile(new File(FILE_PATH)));
        startActivityForResult(imageCaptureIntent, 1);
    }
The doc says:
1/ "If the EXTRA_OUTPUT is not present, then a small sized image is returned"
2/ "If the EXTRA_OUTPUT is present, then the *full-sized* image will be written"

Alas 2/ is not true, it produces a 512x384 image - that is not "full sized".

 

2.

private void doTakePhotoAction() { 
    // http://2009.hfoss.org/Tutorial:Camera_and_Gallery_Demo 
    // http://stackoverflow.com/questions/1050297/how-to-get-the-url-of-the-captured-image 
    // http://www.damonkohler.com/2009/02/android-recipes.html 
    // http://www.firstclown.us/tag/android/ 
    // The one I used to get everything working: http://groups.google.com/group/android-developers/msg/2ab62c12ee99ba30  
 
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
 
    //Wysie_Soh: Create path for temp file 
    mImageCaptureUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), 
                        "tmp_contact_" + String.valueOf(System.currentTimeMillis()) + ".jpg")); 
 
    intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, mImageCaptureUri); 
 
    try { 
        intent.putExtra("return-data", true); 
        startActivityForResult(intent, PICK_FROM_CAMERA); 
    } catch (ActivityNotFoundException e) { 
        //Do nothing for now 
    } 
} 
 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    if (resultCode != RESULT_OK) { 
        return; 
    } 
 
    switch (requestCode) { 
 
    case CROP_FROM_CAMERA: { 
        //Wysie_Soh: After a picture is taken, it will go to PICK_FROM_CAMERA, which will then come here 
        //after the image is cropped. 
 
        final Bundle extras = data.getExtras(); 
 
        if (extras != null) { 
            Bitmap photo = extras.getParcelable("data"); 
 
            mPhoto = photo; 
            mPhotoChanged = true; 
            mPhotoImageView.setImageBitmap(photo); 
            setPhotoPresent(true); 
        } 
 
        //Wysie_Soh: Delete the temporary file                         
        File f = new File(mImageCaptureUri.getPath());             
        if (f.exists()) { 
            f.delete(); 
        } 
 
        InputMethodManager mgr = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
        mgr.showSoftInput(mPhotoImageView, InputMethodManager.SHOW_IMPLICIT); 
 
        break; 
    } 
 
    case PICK_FROM_CAMERA: { 
        //Wysie_Soh: After an image is taken and saved to the location of mImageCaptureUri, come here 
        //and load the crop editor, with the necessary parameters (96x96, 1:1 ratio) 
 
        Intent intent = new Intent("com.android.camera.action.CROP"); 
        intent.setClassName("com.android.camera", "com.android.camera.CropImage"); 
 
        intent.setData(mImageCaptureUri); 
        intent.putExtra("outputX", 96); 
        intent.putExtra("outputY", 96); 
        intent.putExtra("aspectX", 1); 
        intent.putExtra("aspectY", 1); 
        intent.putExtra("scale", true); 
        intent.putExtra("return-data", true);             
        startActivityForResult(intent, CROP_FROM_CAMERA); 
 
        break; 
 
    } 
    } 
}