Android - startActivityForResult for getting file&

问题:

I'm writing a simple image viewer for Android. My app have the "Open file from Gallery" button. So, when I've choosed the image from Gallery, it must return the path to file into my app, but it return a strange Uri, which looks like content://media/storage/2ch/30128.

How I can get an absolute file path from this Uri? Here's some code for launching Gallery:

---

    Intent i = new Intent();
    i.setType("image/*");
    i.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(Intent.createChooser(i, "Выберите файл"), PICTURE_REQUEST_CODE);

---

P.S. Excuse for my English

回答1:

Use this code

protected void onActivityResult(int requestCode, int resultCode, Intent data) {  

   super.onActivityResult(requestCode, resultCode, data); 
   if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data){

      Uri selectedImage = data.getData();
      String[] filePathColumn = { MediaStore.Images.Media.DATA };
      Cursor cursor = getContentResolver().query(selectedImage,filePathColumn, null, null, null);
      cursor.moveToFirst();
      int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
      String picturePath = cursor.getString(columnIndex);
      cursor.close();
}

回答2:

You can also get image using URI :

try this

try {
            Uri selectedImage = selectedImageUri;
            //getContentResolver().notifyChange(selectedImage, null);
            ContentResolver cr = getContentResolver();
            Bitmap bitmap;
            bitmap = android.provider.MediaStore.Images.Media
                    .getBitmap(cr, selectedImage);
            rptImage.setImageBitmap(bitmap);

        } catch (Exception e) {
            Toast.makeText(this, "Failed to load", Toast.LENGTH_SHORT)
                    .show();
            Log.e("Camera", e.toString());
        }

OR simply this :

Try with:

ImageView.setImageUri(Uri.fromFile(new File("/sdcard/cats.jpg")));

Or with:

ImageView.setImageUri(Uri.parse(new File("/sdcard/cats.jpg").toString()));

回答3:

try below code

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_FROM_FILE && resultCode == Activity.RESULT_OK) {

   Uri mImageCaptureUri = data.getData(); 
   String [] proj       = {MediaStore.Images.Media.DATA};
   Cursor cursor        = managedQuery( contentUri, proj, null, null,null);
   if (cursor != null){
        int column_index    = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        String path = cursor.getString(column_index);
   }
}


}

here variable path will return path to your selected image.