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How Do Find Out Where The App Saved My Mutable Bitmap

- 1 answer

I'm working on a meme generator. Right now, I'm trying upload a photo from my device, to put captions on the photo through Canvas and save the new bitmap to my device's "Gallery" app by creating a new folder in it. This is my attempt:

public void createBitmapAndSave(ImageView img){
        BitmapDrawable bitmapDrawable = ((BitmapDrawable) img.getDrawable());
        Bitmap bitmap = bitmapDrawable.getBitmap();
        Bitmap mutableBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);

        Canvas canvas = new Canvas(mutableBitmap);
        Paint paint = new Paint();

        String topText = topTextView.getText().toString();
        String bottomText = bottomTextView.getText().toString();

        canvas.drawText(topText, 0, 0, paint);
        canvas.drawText(bottomText, 50, 50, paint);

        File file;

        String path = Environment.getExternalStorageDirectory().toString();

        file = new File(path, "Meme" + ".jpg");

        try{
            OutputStream stream = null;

            stream = new FileOutputStream(file);
            bitmap.compress(Bitmap.CompressFormat.JPEG,100,stream);
            stream.flush();
            stream.close();
        }catch (IOException e){ e.printStackTrace(); }

    }

And I'm calling the method in my BroadcastReceiver:

private BroadcastReceiver listener = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent ) {
            String data = intent.getStringExtra("DATA");
            Toast.makeText(context, data + " received", Toast.LENGTH_SHORT).show();
            createBitmapAndSave(imageView);
        }
    };

At the moment, I'm not even sure if the editing or the saving of the bitmap even worked because I couldn't find it anywhere in my app's folders.

UPDATE

I've found the issue. I decided to place a toast message inside the try/catch block to see if the stream is working at all because before it was outside the try/catch block and I'd see it at each run. This is what I did:

public void createBitmapAndSave(ImageView img){
        BitmapDrawable bitmapDrawable = ((BitmapDrawable) img.getDrawable());
        Bitmap bitmap = bitmapDrawable.getBitmap();
        Bitmap mutableBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);

        Canvas canvas = new Canvas(mutableBitmap);
        Paint paint = new Paint();

        String topText = topTextView.getText().toString();
        String bottomText = bottomTextView.getText().toString();

        canvas.drawText(topText, 0, 0, paint);
        canvas.drawText(bottomText, 50, 50, paint);

        File file;

        String path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).getAbsolutePath();
        file = new File(path, "Meme" + ".jpg");

        try{
            OutputStream stream = new FileOutputStream(file);
            bitmap.compress(Bitmap.CompressFormat.JPEG,100,stream);
            stream.flush();
            stream.close();
            Toast.makeText(getContext(), path, Toast.LENGTH_SHORT).show();
        }catch (IOException e){ e.printStackTrace();}
    }

Now, I don't see the toast message at all. It seems like the stream is not even working properly but I don't see why it wouldn't.

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Answer

Don't use String path = Environment.getExternalStorageDirectory().toString(); it will store your file in private storage that is not visible to user.

use File path = Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_PICTURES);

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source: stackoverflow.com
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