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);
}
}
}
答案 0 :(得分：0)
您可以这样做：
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;
}
并在onActivityResult方法中使用此方法来模糊Bitmap。
Here's有关如何在Android中模糊图像的教程。