Many apps, such as Facebook, have this feature where after a user chooses an image from their device's gallery, the user is then brought to a preview where they can choose a cropped version of their image. After looking through SO (e.g. How to crop image on camera preview "Goggles style" - Android), I found this link to a an example, but the zip seems to be for sale (CameraPreview.zip). Since that post is a bit old, I was wondering if someone is aware of another example out there or if they know how to do it, please share your knowledge. Thanks.
Try the below code, change the parameters as per your requirements:
Intent cropIntent = new Intent("com.android.camera.action.CROP");
//indicate image type and Uri
cropIntent.setDataAndType(fileUri, "image/*");
//set crop properties
//cropIntent.putExtra("crop", "true");
//indicate aspect of desired crop
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
//indicate output X and Y
cropIntent.putExtra("outputX", 350);
cropIntent.putExtra("outputY", 350);
//retrieve data on return
//cropIntent.putExtra("return-data", true);
// some code to retriev an valid Uri
cropUri = Uri.fromFile(getOutputMediaFile(MEDIA_TYPE_IMAGE));
cropIntent.putExtra(MediaStore.EXTRA_OUTPUT, cropUri);
//start the activity - we handle returning in onActivityResult
startActivityForResult(cropIntent, CROP_REQ_CODE);
and you can get the output using in OnActivityResult()
Bundle extras = data.getExtras();
//get the cropped bitmap
clickedPhoto = extras.getParcelable("data");