public class Fram_1 extends AppCompatActivity { private int REQUEST_CAMERA = 0, SELECT_FILE = 1, SELECT_FILE2 = 2; private String userChoosenTask; ImageView img1, img2; TextView txt1, txt2; LinearLayout img_store, txt_effect, img_brighteff; FrameLayout layout_container; View view; Bitmap bitmap1, bitmap2; Toolbar toolbarMain; EditText edtxt_txteffect; TextView txt_txteffect; LinearLayout effect_toolbarlayoutContainer; // for Birghtness Effect private SeekBar seekBarBri, seekBarBlur; //Variable to store brightness value private int brightness; //Content resolver used as a handle to the system's settings private ContentResolver cResolver; //Window object, that will store a reference to the current window private Window window; // for Blur effect private Bitmap bit_blur; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fram_1); img_brighteff = (LinearLayout) findViewById(R.id.frm1_img_effect); txt_effect = (LinearLayout) findViewById(R.id.frm1_text_effect); img_store = (LinearLayout) findViewById(R.id.frm1_toolbar_image_save); img1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { txt1.setVisibility(View.GONE); selectImage(SELECT_FILE); } }); // For Blur Effect seekBarBlur.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { float radius = (float) Fram_1.this.seekBarBlur.getProgress(); img1.setImageBitmap(createBlurBitmap(bitmap1, radius)); } }); } }); client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build(); } } private void selectImage(final int number) { final CharSequence[] items = {"Take Photo", "Choose from Library", "Cancel"}; AlertDialog.Builder builder = new AlertDialog.Builder(Fram_1.this); builder.setTitle("Add Photo!"); builder.setItems(items, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int item) { boolean result = Utility.checkPermission(Fram_1.this); if (items[item].equals("Take Photo")) { userChoosenTask = "Take Photo"; if (result) cameraIntent(); } else if (items[item].equals("Choose from Library")) { Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); intent.setType("image/*"); startActivityForResult(Intent.createChooser(intent, "Select File"), number); } else if (items[item].equals("Cancel")) { dialog.dismiss(); } } }); builder.show(); } @Override public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { switch (requestCode) { case Utility.MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE: if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { if (userChoosenTask.equals("Take Photo")) cameraIntent(); else if (userChoosenTask.equals("Choose from Library")) { Intent intent1 = new Intent(); intent1.setType("image/*"); intent1.setAction(Intent.ACTION_GET_CONTENT);// startActivityForResult(Intent.createChooser(intent1, "Select File"), SELECT_FILE); } } else { //code for deny } break; } } } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == Activity.RESULT_OK) { Uri selectedImageUri = data.getData(); if (requestCode == SELECT_FILE) { try { // iwant to use bitmap1 variable inside seekBarBlur listener onstopTakingTouch setImageonBitmap methhod bitmap1 = MediaStore.Images.Media.getBitmap(getContentResolver(), selectedImageUri); img1.setScaleType(ImageView.ScaleType.FIT_XY); img1.setImageBitmap(bitmap1); txt1.setVisibility(View.GONE); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } else if (requestCode == SELECT_FILE2) { try { bitmap2 = MediaStore.Images.Media.getBitmap(getContentResolver(), selectedImageUri); } catch (IOException e) { e.printStackTrace(); } img2.setScaleType(ImageView.ScaleType.FIT_XY); img2.setImageBitmap(bitmap2); txt2.setVisibility(View.GONE); } } else if (requestCode == REQUEST_CAMERA && resultCode == RESULT_OK) { onCaptureImageResult(data); } } } 
- 1Possible duplicate of How to blur imageview in androidJanki Gadhiya– Janki Gadhiya2016-07-02 09:00:32 +00:00Commented Jul 2, 2016 at 9:00
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1 Answer
You can do something like this :
private static final float BITMAP_SCALE = 0.4f; private static final float BLUR_RADIUS = 7.5f; public static Bitmap blur(Context context, Bitmap image) { int width = Math.round(image.getWidth() * BITMAP_SCALE); int height = Math.round(image.getHeight() * BITMAP_SCALE); Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false); Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap); RenderScript rs = RenderScript.create(context); ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs)); Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap); Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap); theIntrinsic.setRadius(BLUR_RADIUS); theIntrinsic.setInput(tmpIn); theIntrinsic.forEach(tmpOut); tmpOut.copyTo(outputBitmap); return outputBitmap; } and use this method in your onActivityResult method to get the blurred Bitmap.
Here's a tutorial on how to blur an image in Android.
