How to compress an image in android

Question

How to compress the image in android application.

My application selects photo from gallery using intent and sets the photo as background for the layout,This works fine when i select a photo of small pixel,bit photo taken from camera it does not fit the screen.

how to compress the photo or image.

possible duplicate of [Android. Scale image keeping its aspect ratio in background drawable](http://stackoverflow.com/questions/9891065/android-scale-image-keeping-its-aspect-ratio-in-background-drawable) — CSmith, Nov 19 '13 at 18:15
You probably looking for http://stackoverflow.com/questions/2521959/how-to-scale-an-image-in-imageview-to-keep-the-aspect-ratio — CodeWarrior, Nov 19 '13 at 18:23

score 1 · Answer 1 · answered Nov 20 '13 at 04:57

Use following intent to get image of required size from Gallery.

         Intent photoPickerIntent = new Intent(
                        Intent.ACTION_PICK,
                         android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                // photoPickerIntent.setType("image/*");
                photoPickerIntent.putExtra("crop", "true");
                photoPickerIntent.putExtra("outputX", 512);
                photoPickerIntent.putExtra("outputY", 512);
                photoPickerIntent.putExtra("aspectX", 1);
                photoPickerIntent.putExtra("aspectY", 1);
                photoPickerIntent.putExtra("scale", true);
                File f = new File(android.os.Environment
                        .getExternalStorageDirectory(), "tt.jpg");
                // imgpath=f.getAbsolutePath();
                System.err.println("Path$$$$$$$$$ " + f.getAbsolutePath());
                photoPickerIntent.putExtra(MediaStore.EXTRA_OUTPUT,
                        Uri.fromFile(f));
                photoPickerIntent.putExtra("outputFormat",
                        Bitmap.CompressFormat.PNG.toString());
                startActivityForResult(photoPickerIntent, SELECT_FILE);

score 0 · Accepted Answer · answered Nov 19 '13 at 18:17

To measure the width and height of your Imageview at run time

ViewTreeObserver vto = mUserPicImageView.getViewTreeObserver();
    vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
        public boolean onPreDraw() {

            if (mImageHeight == 0) {
                mImageHeight = mUserPicImageView.getMeasuredHeight();
                mImageWidth = mUserPicImageView.getMeasuredWidth();
                Log.e("mImageHeight", mImageHeight + "");

            }
            return true;
        }
    });

Create image of the above width and height

 Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap,mImageHeight,mImageWidth, true);

Set the image to ImageView

mUserPicImageView.setImageBitmap(scaledBitmap);

How to compress an image in android

2 Answers2