从Gallery获取图片无法在设备上运行，但可以在模拟器上运行

startActivityForResult(new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI), SELECT_IMAGE);

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == SELECT_IMAGE)
    {
        if (resultCode == Activity.RESULT_OK)
        {
            Uri selectedImage = data.getData();
            Bitmap bitmap;
            try
            {
                bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), selectedImage);
            }
            catch (FileNotFoundException e)
            {
                Toast.makeText(TweetMyPic.this, \"Failed to load image: \" + e.toString(), Toast.LENGTH_LONG).show();
                return;
            }
            catch (IOException e)
            {
                Toast.makeText(TweetMyPic.this, \"Failed to load image: \" + e.toString(), Toast.LENGTH_LONG).show();
                return;
            }

            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos); 

            sendImage(baos.toByteArray());
        }
    }
}