I Am Making An Image Filter App And Before Applying Filter I Will Crop The Image As Square, I Can Crop The Image Using Soundcloud Library Like This:-
private void beginCrop(String sources) { img_name = "cropped"+System.currentTimeMillis(); Uri destination = Uri.fromFile(new File(getCacheDir(), "cropped"+System.currentTimeMillis())); Uri source = Uri.parse("file://"+sources); Crop.of(source, destination).withAspect(200,200).start(this); } private void handleCrop(int resultCode, Intent result) { if (resultCode == RESULT_OK) { Toast.makeText(this,Crop.getOutput(result).toString(), Toast.LENGTH_SHORT).show(); Intent intent = new Intent(AlbumActivity.this,FilterImageActivity .class); intent.putExtra("output_image",Crop.getOutput(result).toString()); startActivity(intent); } else if (resultCode == Crop.RESULT_ERROR) { Toast.makeText(this, Crop.getError(result).getMessage(), Toast.LENGTH_SHORT).show(); } }} And On The Next Activity Which Is FilterImageActivity.java:-
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_filter_image); String uri = getIntent().getStringExtra("output_image"); setImageDir(uri); } And The Function setImageDir():-
private void setImageDir(String uri) { Bitmap bitmap = convetBitmap(uri); // clear bitmap memory /* originalImage.recycle(); finalImage.recycle(); finalImage.recycle();*/ originalImage = bitmap.copy(Bitmap.Config.ARGB_8888, true); filteredImage = originalImage.copy(Bitmap.Config.ARGB_8888, true); finalImage = originalImage.copy(Bitmap.Config.ARGB_8888, true); imagePreview.setImageBitmap(originalImage); bitmap.recycle(); // render selected image thumbnails filtersListFragment.prepareThumbnail(originalImage); } And The Function convertBitmap():-
private Bitmap convetBitmap(final String uri) { final Bitmap[] bitmap = {null}; Thread task = new Thread() { @Override public void run() { try { bitmap[0] = Glide.with(getApplicationContext()).asBitmap().load(Uri.parse(uri)).into(100,100).get(); } catch (InterruptedException | ExecutionException e) { e.printStackTrace(); } } }; task.start(); return bitmap[0]; }
Image Is Cropped And Saved To Directory For Example
file:///data/user/0/com.dev.pigeon/cache/cropped1518332591373
But It Gives An Error
Attempt to invoke virtual method 'android.graphics.Bitmap android.graphics.Bitmap.copy(android.graphics.Bitmap$Config, boolean)' on a null object reference Maybe The URI is Not Converting Into Bitmap Please Any Solution???
