Seems simple, but I can't get it to work. I have a public class string variable that should change within a if or switch statement. I haven't declared the variable inside the statement so it should change given the scope, no? But it only reads "FROM" and when I do go to change it in the if statement that applies, it does change to "TO" but only in that instance and reverts back to "FROM". I would pass it along the methods, but the full code is more cluttered and I don't think it's possible to do so.
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
String typeOfText = "FROM";
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantRequest) {
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public void onClick(View view) {
if (view.getId() == R.id.faboptions_favorite) {
Toast.makeText(MainActivity.this, "FROM", Toast.LENGTH_SHORT).show();
typeOfText = "FROM";
cameraSource.takePicture(null, new CameraSource.PictureCallback() {
#Override
public void onPictureTaken(byte[] bytes) {
Bitmap bmp = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
cropPicFile(bmp);
}
});
} else if (view.getId() == R.id.faboptions_textsms) {
Toast.makeText(MainActivity.this, "TO", Toast.LENGTH_SHORT).show();
typeOfText = "TO";
Log.d("VARIABLE","" + typeOfText);
cameraSource.takePicture(null, new CameraSource.PictureCallback() {
#Override
public void onPictureTaken(byte[] bytes) {
Bitmap bmp = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
cropPicFile(bmp);
}
});
} else {
typeOfText = "FROM";
Toast.makeText(MainActivity.this, "Share", Toast.LENGTH_SHORT).show();
createDialogSaveInfo();
}
}
private void createDialogSaveInfo() {
final Dialog dialog = new Dialog(MainActivity.this);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setCancelable(false);
dialog.setContentView(R.layout.dialog_confirm_address_scan);
//Establish Dialog Views
Button submit = (Button) dialog.findViewById(R.id.button_dialog_scanner_submit);
Button cancel = (Button) dialog.findViewById(R.id.button_dialog_scanner_cancel);
final EditText fromEditText = (EditText) dialog.findViewById(R.id.editText_dialog_scanner_from);
final EditText toEditText = (EditText) dialog.findViewById(R.id.editText_dialog_scanner_to);
//Set text from captured strings in surface view
fromEditText.setText(fromAddress);
toEditText.setText(toAddress);
//Setup listeners
submit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//TODO save info to realm
saveLabelInfoIntoRealm(fromEditText.getText().toString(), toEditText.getText().toString());
dialog.dismiss();
}
});
cancel.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();
}
});
dialog.show();
}
private void saveLabelInfoIntoRealm(final String from, final String to) {
realm.executeTransaction(new Realm.Transaction() {
#Override
public void execute(Realm realm) {
Package userPackage = realm.createObject(Package.class, 0);
userPackage.setFromAddress(from);
userPackage.setToAddress(to);
}
});
}
private int getPrimaryKey() {
try {
return realm.where(Package.class).max("primaryKey").intValue() + 1;
} catch (ArrayIndexOutOfBoundsException e) {
return 0;
}
}
private void configureListeners() {
fabOptions.setOnClickListener(this);
}
public Uri getImageUri(Context inContext, Bitmap inImage) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
if (path == null) {
Log.d("TAG", "" + path.toString());
}
return Uri.parse(path);
}
private void cropPicFile(Bitmap file) {
Uri imageToCrop = getImageUri(this, file);
CropImage.activity(imageToCrop)
.setGuidelines(CropImageView.Guidelines.ON)
.start(this);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if (resultCode == RESULT_OK) {
Uri photo = result.getUri();
readImage(photo);
} else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
Exception error = result.getError();
}
}
}
private void readImage(Uri photo) {
StringBuilder stringBuilder = new StringBuilder();
try {
Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), photo);
Frame imageFrame = new Frame.Builder()
.setBitmap(bitmap)
.build();
final SparseArray<TextBlock> items = textRecognizer.detect(imageFrame);
for (int i = 0; i < items.size(); i++) {
TextBlock item = items.valueAt(i);
stringBuilder.append(item.getValue());
stringBuilder.append("\n");
}
} catch (IOException e) {
e.printStackTrace();
}
Log.d("VARIABLE","" + typeOfText);
if (typeOfText.equals("FROM")) {
fromAddress = stringBuilder.toString();
} else if (typeOfText.equals("TO")){
toAddress = stringBuilder.toString();
}
}
}
The reason the code keeps reverting is because the call to readImage() is in onActivityResult() which recreates the activity when called. So basically, you are getting a fresh object, and the onTypeText() is reinitialized. onActivityResult() is basically a callback from your previous activity.
Your onClick() is not being called due you don't assign clicklistener to R.id.faboptions_favorite and the other View
in onCreate add :
findViewById(R.id.faboptions_favorite).setOnClickListener(this);
and same for the other view.
Related
am writing a body measurement app. I have been able to create the camera and it stores the image. I want to use the captured image in another activity where i called the method 'bodyMeasurement'
I really need help in achieving this. Further corrections are also welcomed. Thanks
Here is my Camera Activity;
CameraDevice.StateCallback stateCallback = new CameraDevice.StateCallback() {
#Override
public void onOpened(#NonNull CameraDevice camera) {
cameraDevice = camera;
createCameraPreview();
}
#Override
public void onDisconnected(#NonNull CameraDevice cameraDevice) {
cameraDevice.close();
}
#Override
public void onError(#NonNull CameraDevice cameraDevice, int i) {
cameraDevice.close();
cameraDevice=null;
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textureView = (TextureView)findViewById(R.id.textureView);
//From Java 1.4 , you can use keyword 'assert' to check expression true or false
assert textureView != null;
textureView.setSurfaceTextureListener(textureListener);
btnCapture = (ImageButton)findViewById(R.id.btnCapture);
/* Dexter.withActivity(this)
.withPermissions(Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.CAMERA)
.withListener(new MultiplePermissionsListener() {
#Override
public void onPermissionsChecked(MultiplePermissionsReport report) {
if (!report.areAllPermissionsGranted()) {
Toast.makeText(MainActivity.this, "You need to grant all permission to use this app features", Toast.LENGTH_SHORT).show();
}
}
#Override
public void onPermissionRationaleShouldBeShown(List<PermissionRequest> permissions, PermissionToken token) {
}
})
.check();*/
btnCapture.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
takePicture();
}
});
}
private void takePicture() {
if(cameraDevice == null)
return;
CameraManager manager = (CameraManager)getSystemService(Context.CAMERA_SERVICE);
try{
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraDevice.getId());
Size[] jpegSizes = null;
if(characteristics != null)
jpegSizes = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)
.getOutputSizes(ImageFormat.JPEG);
//Capture image with custom size
int width = 4608;
int height = 3456;
if(jpegSizes != null && jpegSizes.length > 0)
{
width = jpegSizes[0].getWidth();
height = jpegSizes[0].getHeight();
}
final ImageReader reader = ImageReader.newInstance(width,height,ImageFormat.JPEG,1);
List<Surface> outputSurface = new ArrayList<>(2);
outputSurface.add(reader.getSurface());
outputSurface.add(new Surface(textureView.getSurfaceTexture()));
final CaptureRequest.Builder captureBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
captureBuilder.addTarget(reader.getSurface());
captureBuilder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO);
//Check orientation base on device
int rotation = getWindowManager().getDefaultDisplay().getRotation();
captureBuilder.set(CaptureRequest.JPEG_ORIENTATION,ORIENTATIONS.get(rotation));
file = new File(Environment.getExternalStorageDirectory()+"/"+ ".CnatraSamp"+".jpg");
ImageReader.OnImageAvailableListener readerListener = new ImageReader.OnImageAvailableListener() {
#Override
public void onImageAvailable(ImageReader imageReader) {
Image image = null;
try{
image = reader.acquireLatestImage();
ByteBuffer buffer = image.getPlanes()[0].getBuffer();
byte[] bytes = new byte[buffer.capacity()];
buffer.get(bytes);
save(bytes);
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
finally {
{
if(image != null)
image.close();
}
}
}
private void save(byte[] bytes) throws IOException {
OutputStream outputStream = null;
try{
outputStream = new FileOutputStream(file);
outputStream.write(bytes);
}finally {
if(outputStream != null)
outputStream.close();
}
}
};
reader.setOnImageAvailableListener(readerListener,mBackgroundHandler);
final CameraCaptureSession.CaptureCallback captureListener = new CameraCaptureSession.CaptureCallback() {
#Override
public void onCaptureCompleted(#NonNull CameraCaptureSession session, #NonNull CaptureRequest request, #NonNull TotalCaptureResult result) {
super.onCaptureCompleted(session, request, result);
Toast.makeText(MainActivity.this, "Saved "+file, Toast.LENGTH_SHORT).show();
finish();
Intent i = new Intent(MainActivity.this,BlankActivity.class);
startActivity(i);
finish();
}
};
cameraDevice.createCaptureSession(outputSurface, new CameraCaptureSession.StateCallback() {
#Override
public void onConfigured(#NonNull CameraCaptureSession cameraCaptureSession) {
try{
cameraCaptureSession.capture(captureBuilder.build(),captureListener,mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
#Override
public void onConfigureFailed(#NonNull CameraCaptureSession cameraCaptureSession) {
}
},mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
private void createCameraPreview() {
try{
SurfaceTexture texture = textureView.getSurfaceTexture();
assert texture != null;
texture.setDefaultBufferSize(imageDimension.getWidth(),imageDimension.getHeight());
Surface surface = new Surface(texture);
captureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
captureRequestBuilder.addTarget(surface);
cameraDevice.createCaptureSession(Arrays.asList(surface), new CameraCaptureSession.StateCallback() {
#Override
public void onConfigured(#NonNull CameraCaptureSession cameraCaptureSession) {
if(cameraDevice == null)
return;
cameraCaptureSessions = cameraCaptureSession;
updatePreview();
}
#Override
public void onConfigureFailed(#NonNull CameraCaptureSession cameraCaptureSession) {
Toast.makeText(MainActivity.this, "Changed", Toast.LENGTH_SHORT).show();
}
},null);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
private void updatePreview() {
if(cameraDevice == null)
Toast.makeText(this, "Error", Toast.LENGTH_SHORT).show();
captureRequestBuilder.set(CaptureRequest.CONTROL_MODE,CaptureRequest.CONTROL_MODE_AUTO);
try{
cameraCaptureSessions.setRepeatingRequest(captureRequestBuilder.build(),null,mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
private void openCamera() {
CameraManager manager = (CameraManager)getSystemService(Context.CAMERA_SERVICE);
try{
cameraId = manager.getCameraIdList()[1];
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
assert map != null;
imageDimension = map.getOutputSizes(SurfaceTexture.class)[1];
//Check realtime permission if run higher API 23
if(ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED)
{
ActivityCompat.requestPermissions(this,new String[]{
Manifest.permission.CAMERA,
Manifest.permission.WRITE_EXTERNAL_STORAGE
},REQUEST_CAMERA_PERMISSION);
return;
}
manager.openCamera(cameraId,stateCallback,null);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
TextureView.SurfaceTextureListener textureListener = new TextureView.SurfaceTextureListener() {
#Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int i, int i1) {
openCamera();
}
#Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int i, int i1) {
}
#Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
return false;
}
#Override
public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
}
};
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
if(requestCode == REQUEST_CAMERA_PERMISSION)
{
if(grantResults[0] != PackageManager.PERMISSION_GRANTED)
{
Toast.makeText(this, "You can't use camera without permission", Toast.LENGTH_SHORT).show();
finish();
}
}
}
#Override
protected void onResume() {
super.onResume();
startBackgroundThread();
if(textureView.isAvailable())
openCamera();
else
textureView.setSurfaceTextureListener(textureListener);
}
#Override
protected void onPause() {
stopBackgroundThread();
super.onPause();
}
private void stopBackgroundThread() {
mBackgroundThread.quitSafely();
try{
mBackgroundThread.join();
mBackgroundThread= null;
mBackgroundHandler = null;
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private void startBackgroundThread() {
mBackgroundThread = new HandlerThread("Camera Background");
mBackgroundThread.start();
mBackgroundHandler = new Handler(mBackgroundThread.getLooper());
}
the activity i need the image;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_blank);
height = findViewById(R.id.height);
cancel = findViewById(R.id.cancel);
btnctn = findViewById(R.id.continuebtn);
cmIn = findViewById(R.id.cmIn);
height.setInputType(InputType.TYPE_CLASS_NUMBER |
InputType.TYPE_NUMBER_FLAG_DECIMAL |
InputType.TYPE_NUMBER_FLAG_SIGNED);
btnctn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (height.getText().toString().trim().isEmpty()){
Toast.makeText(BlankActivity.this,"Please input your height..",Toast.LENGTH_LONG).show();
}else {
final ProgressDialog progressDialog = new ProgressDialog(BlankActivity.this);
progressDialog.setMessage("Getting Your Measurement");
progressDialog.setTitle("Please wait!");
progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
progressDialog.show(); // Display Progress Dialog
progressDialog.setCancelable(false);
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
Intent i = new Intent(BlankActivity.this, SettingsActivity.class);
startActivity(i);
progressDialog.dismiss();
}
},5000);
}
//place measurement object
bodyMeasurement();
}
});
cancel.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
BlankActivity.this.finish();
Intent i = new Intent(BlankActivity.this, HomeActivity.class);
startActivity(i);
finish();
}
});
cmIn.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
num = Double.parseDouble(String.valueOf(height.getText()));
in = 0.3937 * num;
String r = String.valueOf(in);
height.setText(r);
}else {
num = Double.parseDouble(String.valueOf(height.getText()));
cm = num / 0.3937;
String r = String.valueOf(cm);
height.setText(r);
}
}
});
}
private void bodyMeasurement() {
}
}
As mentioned in the comment, you can get the absolute path from the saved image and pass it through an intent to the Activity that it needs it.
To achieve this, you might want to convert your image file to a BitMap first, which will give you the actual path of the image (sometimes .getAbsolutePath() method returns a wrong file path, so it is a better solution to convert your image to a bitmap first).
This can be achieved:
String filePath = file.getPath();
Bitmap imgBitmap = BitmapFactory.decodeFile(filePath);
Then to obtain the real path of the image you saved you need to
1) Obtain the Uri of the created Bitmap:
public Uri getUri(Context context, Bitmap imgBitmap) {
ByteArrayOutputStream bOutputStream = new ByteArrayOutputStream();
String path = MediaStore.Images.Media.insertImage(context.getContentResolver(),
imgBitmap, "Title", null);
return Uri.parse(path);
}
2) Fetch the real path from Uri:
public String getRealPath(Uri uri) {
String [] proj={MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(uri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String path = cursor.getString(column_index);
cursor.close();
return path;
}
In your first activity you can pass the path of your image through an intent to the other activity, then fetch it and display it/etc.
Intent intent = new Intent(context,OtherActivity.class);
intent.putExtra("PATH",path);
startActivity(intent);
Receive the data you passed:
Intent intent = getIntent();
String path = intent.getStringExtra("PATH");
//convert the path to image/bitmap and display the image
You can also pass the entire Bitmap to the Activity you need it, but I strongly recommend that you don't, because it will use a lot of memory.
I'm very new to this coding thing and I hope that anyone of you can help me out on this. Basically I have three different buttons with different image view and I would like to upload them to my MySQL. However when I press all three button at different times, it will only affect the 1 of the image views. Appreciate if you could help.
public static final int resultloadimage = 1;
private static final int RESULT_OK = -1;
Button btnupadloadnric, btnuploaddl, btnuploadvl,updateButton;
ImageView ivnric,ivdl,ivvl;
EditText fullanme, telephone;
String encodedimage;
ConnectionClass connectionClass;
String filename = null;
byte[] image = null;
private byte[] byteArray;
public Profile() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_profile, container, false);
btnupadloadnric = v.findViewById(R.id.btnAdminUploadNRICFragment);
btnuploaddl = v.findViewById(R.id.btnAdminUploadDLFragment);
btnuploadvl = v.findViewById(R.id.btnAdminUploadVCLFragment);
ivdl = v.findViewById(R.id.ivadminprofiledl);
ivnric = v.findViewById(R.id.ivadminprofilenric);
ivvl = v.findViewById(R.id.ivadminprofilevl);
fullanme = v.findViewById(R.id.etAdminFullNameProfileFragment);
telephone = v.findViewById(R.id.etAdminPhoneNumberProfileFragment);
updateButton = v.findViewById(R.id.btnAdminUpdateProfileFragment);
connectionClass = new ConnectionClass();
btnuploadvl.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Intent gallery = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(gallery, resultloadimage);
}
});
btnuploaddl.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Intent gallery = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(gallery, resultloadimage);
}
});
btnupadloadnric.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Intent gallery = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(gallery, resultloadimage);
}
});
updateButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
UploadImage uploadImage = new UploadImage();
uploadImage.execute("");
}
});
return v;
}
#Override
public void onActivityResult(int requestCode, int resultcode, Intent data)
{
super.onActivityResult(requestCode,resultcode,data);
if (requestCode == resultloadimage && resultcode == RESULT_OK && null !=data){
Bitmap originbitmap = null;
Uri selectedImage = data.getData();
InputStream imagestream;
try {
imagestream = getActivity().getContentResolver().openInputStream(selectedImage);
originbitmap = BitmapFactory.decodeStream(imagestream);
}catch (FileNotFoundException e)
{
Toast.makeText(getActivity(),"Done",Toast.LENGTH_LONG).show();
}
if (originbitmap!=null){
this.ivdl.setImageBitmap(originbitmap);
Log.w("Image in", "Done");
try {
Bitmap image = ((BitmapDrawable)ivdl.getDrawable()).getBitmap();
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
image.compress(Bitmap.CompressFormat.JPEG, 90 , byteArrayOutputStream);
byteArray = byteArrayOutputStream.toByteArray();
encodedimage = Base64.encodeToString(byteArray,Base64.DEFAULT);
UploadImage uploadImage = new UploadImage();
uploadImage.execute("");
}catch (Exception e){
Log.w("asd", "Exception");
}
Toast.makeText(getActivity(),"Done",Toast.LENGTH_LONG).show();
}
}
else{
System.out.println("Error Occured");
}
}
public class UploadImage extends AsyncTask<String,String,String>
{
#Override
protected String doInBackground(String... strings) {
try {
Connection con = connectionClass.CONN();
if (con==null) {
Toast.makeText(getActivity(),"Check Internet", Toast.LENGTH_LONG).show();
}else{
String command = "Insert into driverprofile (DrivingL, Username, Password) values('" + encodedimage + "', 'Admin1', '12345')";
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery(command);
if (rs.next()){}
}
} catch (Exception ex) {
ex.getMessage();
}
return null;
}
}
}
I think you should change request codes for each gallery intent on each button click.
btnuploadvl.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Intent gallery = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(gallery, "request code for btnuploadvl");
}
});
btnuploaddl.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Intent gallery = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(gallery, "request code for btnuploaddl");
}
});
btnupadloadnric.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Intent gallery = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(gallery, "request code for btnupadloadnric");
}
});
And then check request code detecting which button is clicked on onActivityResult.
I am taking image from camera as well as from gallery,after getting the image, I want to show the image in imageview.
Image that is captured by camera successfully is shown in imageview but when I want to select it from gallery it does not show the image and it also does not show any error. It was working properly but later I add camera feature in activity, it's not working well.
public class DoReport extends AppCompatActivity {
private EditText subject,detail;
private ImageView pic;
private ImageView iv;
private Spinner depart;
private String depat,sub,det;
//for image
private Bitmap selectedImage;
public static String image;
private Uri imageUri;
public final static int PHOTO_FROM_MEMORY_REQUESTED = 10;
static final int REQUEST_IMAGE_CAPTURE = 1;
String userChoosenTask;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_do_report);
subject = (EditText) findViewById(R.id.subject);
detail = (EditText) findViewById(R.id.detail);
depart = (Spinner) findViewById(R.id.Depat_Edit);
iv=(ImageView)findViewById(R.id.ImgView);
}
public void onBackClick(View v) {
Intent intent=new Intent(this,UserView.class);
startActivity(intent);
finish();
}
#Override
public void onBackPressed() {
super.onBackPressed();
Intent intent=new Intent(this,UserView.class);
startActivity(intent);
finish();
}
//to pic the image from galery
//this is new <code>
public void imgBtn(View v) {
selectImage();
}
private void updateSelectedPicture(Uri uri) {
try {
imageUri = uri;
InputStream imageStream = getContentResolver().openInputStream(imageUri);
selectedImage = BitmapFactory.decodeStream(imageStream);
iv.setImageDrawable(new BitmapDrawable(selectedImage));
image=encode(selectedImage);
} catch(FileNotFoundException ex) {
Log.e("File not found", "Cannot find background file under received URI");
}
}
public static String encode(Bitmap image) {
Bitmap immagex=image;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
immagex.compress(Bitmap.CompressFormat.JPEG, 20, baos);
byte[] b = baos.toByteArray();
String imageEncoded = Base64.encodeToString(b,Base64.DEFAULT);
Log.e("LOOK", imageEncoded);
return imageEncoded;
}
public void submit(View v) {
depat=depart.getSelectedItem().toString();
sub=subject.getText().toString();
det=detail.getText().toString();
if(sub.isEmpty()) {
subject.setError("subject is required");
} else if(det.isEmpty()) {
detail.setError("subject is required");
} else {
login_database(depat, sub, det, image);
}
}
private void login_database(final String depat, final String sub,final String det,final String pic) {
RequestQueue queue = Volley.newRequestQueue(this);
StringRequest request = new StringRequest(Request.Method.POST, Static.user_connect,//changes required
new Response.Listener<String>() {
public void onResponse(String response) {
if ((response.contains("successful"))) {
Toast.makeText(DoReport.this, "Successful Submitted",Toast.LENGTH_LONG).show();
Intent i = new Intent (DoReport.this,UserView.class);
startActivity(i);
finish();
} else {
Toast.makeText(DoReport.this, "Some error occured", Toast.LENGTH_LONG).show();//changes required
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(DoReport.this, error.toString(), Toast.LENGTH_SHORT).show();
Log.d("ERROR", toString());
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> map = new HashMap<>();
map.put("key", "3");//changes required
map.put("Depat", depat);
map.put("Detail", det);
map.put("Pic", pic);
map.put("Subject", sub);
map.put("U_id",Static.id);
return map;
}
};
queue.add(request);
}
/*//////////////////////////////////////////////////////////////////////////////////////////
code for selecting image from camera or gallery
*////////////////////////////////////////////////////////////////////////////////////////
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if( requestCode== REQUEST_IMAGE_CAPTURE) {
try {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
iv.setImageBitmap(imageBitmap);
image = encode(imageBitmap);//this line is added to encode
} else if (requestCode == PHOTO_FROM_MEMORY_REQUESTED && resultCode == RESULT_OK) {
updateSelectedPicture(data.getData());
}
}
catch (Exception e){ Toast.makeText(DoReport.this, e.toString(), Toast.LENGTH_LONG).show();}
}
}
///////////////it will show the dialogue box
private void selectImage() {
final CharSequence[] items = { "Take Photo", "Choose from Library", "Cancel" };
AlertDialog.Builder builder = new AlertDialog.Builder(DoReport.this);
builder.setTitle("Add Photo!");
builder.setItems(items, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int item) {
boolean result=Utility.checkPermission(DoReport.this);
if (items[item].equals("Take Photo")) {
userChoosenTask="Take Photo";
dispatchTakePictureIntent();
} else if (items[item].equals("Choose from Library")) {
userChoosenTask="Choose from Library";
gallery();
} else if (items[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
public void gallery() {
Intent i = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, PHOTO_FROM_MEMORY_REQUESTED);
}
}
only change onActivityResult method remove else if block form id condition like below code...
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if( requestCode== REQUEST_IMAGE_CAPTURE) {
try {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
iv.setImageBitmap(imageBitmap);
image = encode(imageBitmap);//this line is added to encode
}
}
catch (Exception e){ Toast.makeText(DoReport.this, e.toString(), Toast.LENGTH_LONG).show();}
}
else if (requestCode == PHOTO_FROM_MEMORY_REQUESTED && resultCode == RESULT_OK) {
updateSelectedPicture(data.getData());
}
}
selectedImage = BitmapFactory.decodeStream(imageStream);
You should check if selectedImage -the bitmap- is null.
I bet selectedImage==null.
This happens if the bitmap would become too big for available memory.
You should scale it down while loading from stream.
Remember: from the camera you only obtain a thumbnail. Thats the difference.
Here's my code to set a rounding photo from gallery or camera into ImageButton and it works perfectly :
public class EditProfileActivity extends AppCompatActivity {
ImageButton btnValidate,btnCancel,imgProfile;
TextView tvEditPhoto;
RoundImage roundedImage;
private String userChoosenTask;
private int REQUEST_CAMERA = 0, SELECT_FILE = 1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_edit_profile);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
btnCancel = findViewById(R.id.toolbar_back_btn);
btnValidate = findViewById(R.id.toolbar_validate_btn);
imgProfile = findViewById(R.id.user_profile_photo_edit);
tvEditPhoto = findViewById(R.id.user_profile_name_edit);
//Rounding image
Bitmap bm = BitmapFactory.decodeResource(getResources(),R.drawable.profile);
roundedImage = new RoundImage(bm);
imgProfile.setImageDrawable(roundedImage);
btnCancel.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
finish();
}
});
btnValidate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
finish();
}
});
imgProfile.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
selectImage();
}
});
tvEditPhoto.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
selectImage();
}
});
}
#Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case PictureUtility.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"))
galleryIntent();
} else {
//code for deny
Toast.makeText(EditProfileActivity.this, "Oups ! vous n'avez pas la permission.", Toast.LENGTH_LONG).show();
}
break;
}
}
private void selectImage() {
final CharSequence[] items = { "Take Photo", "Choose from Library",
"Cancel" };
AlertDialog.Builder builder = new AlertDialog.Builder(EditProfileActivity.this);
builder.setTitle("Add Photo!");
builder.setItems(items, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int item) {
boolean result= PictureUtility.checkPermission(EditProfileActivity.this);
if (items[item].equals("Take Photo")) {
userChoosenTask="Take Photo";
if(result)
cameraIntent();
} else if (items[item].equals("Choose from Library")) {
userChoosenTask="Choose from Library";
if(result)
galleryIntent();
} else if (items[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
private void galleryIntent()
{
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);//
startActivityForResult(Intent.createChooser(intent, "Select File"),SELECT_FILE);
}
private void cameraIntent()
{
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUEST_CAMERA);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
if (requestCode == SELECT_FILE)
onSelectFromGalleryResult(data);
else if (requestCode == REQUEST_CAMERA)
onCaptureImageResult(data);
}
}
private void onCaptureImageResult(Intent data) {
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
File destination = new File(Environment.getExternalStorageDirectory(),
System.currentTimeMillis() + ".jpg");
FileOutputStream fo;
try {
destination.createNewFile();
fo = new FileOutputStream(destination);
fo.write(bytes.toByteArray());
fo.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
//resize picture
Bitmap bmw = Bitmap.createScaledBitmap(thumbnail, 120, 120, false);
//rounding picture
roundedImage = new RoundImage(bmw);
imgProfile.setImageDrawable(roundedImage);
}
#SuppressWarnings("deprecation")
private void onSelectFromGalleryResult(Intent data) {
Bitmap bm=null;
if (data != null) {
try {
bm = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), data.getData());
} catch (IOException e) {
e.printStackTrace();
}
}
Bitmap bmw = Bitmap.createScaledBitmap(bm, 120, 120, false);
roundedImage = new RoundImage(bmw);
imgProfile.setImageDrawable(roundedImage);
}
}
In your code, try to add createScaledBitmap to resize your photo like this:
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
//add this line and use the new bitmap resized
Bitmap imageBitmapResized = Bitmap.createScaledBitmap(imageBitmap , 120, 120, false);
iv.setImageBitmap(imageBitmapResized );
image = encode(imageBitmapResized );//this line is added to encode
} else if (requestCode == PHOTO_FROM_MEMORY_REQUESTED && resultCode == RESULT_OK) {
updateSelectedPicture(data.getData());
}
Here is the code to convert an image to byte array and and send to ble device
i am not able to send complete data and its stopping nearly at 1kb
what are the methods to send large data to ble .
will it be appropriate to use delay in the data transfer and if so can you share the code
if anyone has any code to send data upto 1mb please do share
public class RxTxActivity extends Activity {
byte[] imageInByte,SendByte;
private static int IMG_RESULT = 1;
String ImageDecode;
ImageView imageViewLoad;
Button LoadImage;
Intent intent;
String[] FILE;
String[] SAImage,SAsent;
private final static String TAG = DeviceControlActivity.class.getSimpleName();
public static final String EXTRAS_DEVICE_NAME = "DEVICE_NAME";
public static final String EXTRAS_DEVICE_ADDRESS = "DEVICE_ADDRESS";
private TextView mCharaDescriptor;
private TextView mConnectionState;
private TextView mDataField;
private TextView mDeviceAddressTextView;
private String mServiceUUID, mDeviceAddress;
private String mCharaUUID, mDeviceName;
private BluetoothLeService mBluetoothLeService;
private ArrayList<ArrayList<BluetoothGattCharacteristic>> mGattCharacteristics =
new ArrayList<ArrayList<BluetoothGattCharacteristic>>();
private boolean mConnected = true;
private BluetoothGattCharacteristic mNotifyCharacteristic;
private Button EditButton;
private Button CharaSubscribeButton;
private EditText EditText;
private final String LIST_NAME = "NAME";
private final String LIST_UUID = "UUID";
private String CHARA_DESC = "";
private String properties = "";
private Context context = this;
// Code to manage Service lifecycle.
private final ServiceConnection mServiceConnection = new ServiceConnection() {
#Override
public void onServiceConnected(ComponentName componentName, IBinder service) {
mBluetoothLeService = ((BluetoothLeService.LocalBinder) service).getService();
if (!mBluetoothLeService.initialize()) {
Log.e(TAG, "Unable to initialize Bluetooth");
finish();
}
// Automatically connects to the device upon successful start-up initialization.
mBluetoothLeService.connect(mDeviceAddress);
mBluetoothLeService.readCustomDescriptor(mCharaUUID, mServiceUUID);
}
#Override
public void onServiceDisconnected(ComponentName componentName) {
mBluetoothLeService = null;
}
};
// Handles various events fired by the Service.
// ACTION_GATT_CONNECTED: connected to a GATT server.
// ACTION_GATT_DISCONNECTED: disconnected from a GATT server.
// ACTION_GATT_SERVICES_DISCOVERED: discovered GATT services.
// ACTION_DATA_AVAILABLE: received data from the device. This can be a result of read
// or notification operations.
private final BroadcastReceiver mGattUpdateReceiver = new BroadcastReceiver() {
#Override
public void onReceive(final Context context, Intent intent) {
final String action = intent.getAction();
switch (action) {
case BluetoothLeService.ACTION_GATT_CONNECTED:
mConnected = true;
updateConnectionState(R.string.connected);
invalidateOptionsMenu();
break;
case BluetoothLeService.ACTION_GATT_DISCONNECTED:
mConnected = false;
updateConnectionState(R.string.disconnected);
invalidateOptionsMenu();
break;
case BluetoothLeService.ACTION_GATT_SERVICES_DISCOVERED:
break;
case BluetoothLeService.ACTION_DATA_AVAILABLE:
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(context, "Data Received!", Toast.LENGTH_SHORT).show();
}
});
displayData(intent.getStringExtra(BluetoothLeService.EXTRA_DATA));
break;
case BluetoothLeService.ACTION_DESCRIPTOR_AVAILABLE:
Log.i("Receiving data", "Broadcast received");
displayDescriptor(intent.getStringExtra(BluetoothLeService.EXTRA_DATA));
default:
break;
}
}
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.data_transfer);
imageViewLoad = (ImageView) findViewById(R.id.imageView1);
LoadImage = (Button)findViewById(R.id.button1);
LoadImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
intent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, IMG_RESULT);
}
});
final Intent intent = getIntent();
Log.i("OnCreate", "Created");
mDeviceAddress = intent.getStringExtra(EXTRAS_DEVICE_ADDRESS);
mDeviceName = intent.getStringExtra(EXTRAS_DEVICE_NAME);
mServiceUUID = intent.getStringExtra("Service UUID");
mCharaUUID = intent.getStringExtra("Characteristic UUID");
CHARA_DESC = intent.getStringExtra("Characteristic Descriptor");
properties = intent.getStringExtra("Characteristic properties");
// Sets up UI references.
((TextView) findViewById(R.id.device_address_rxtx)).setText("Characteristic UUID: " + mCharaUUID);
((TextView) findViewById(R.id.characteristic_Descriptor)).setText("Characteristic Descriptor: " + CHARA_DESC);
((TextView) findViewById(R.id.device_address)).setText(mDeviceAddress);
mConnectionState = (TextView) findViewById(R.id.connection_state);
mConnectionState.setText("Connected");
mDataField = (TextView) findViewById(R.id.data_value);
EditText = (EditText) findViewById(R.id.characteristicEditText);
EditButton = (Button) findViewById(R.id.characteristicButton);
CharaSubscribeButton = (Button) findViewById(R.id.characteristic_Subscribe);
mCharaDescriptor = (TextView) findViewById(R.id.characteristic_Descriptor);
EditButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String str = EditText.getText().toString();
mBluetoothLeService.writeCustomCharacteristic(str, mServiceUUID, mCharaUUID);
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(context, "Message Sent!", Toast.LENGTH_SHORT).show();
}
});
mBluetoothLeService.readCustomDescriptor(mCharaUUID, mServiceUUID);
}
});
CharaSubscribeButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (properties.indexOf("Indicate") >= 0) {
mBluetoothLeService.subscribeCustomCharacteristic(mServiceUUID, mCharaUUID, 1);
} else if (properties.indexOf("Notify") >= 0) {
mBluetoothLeService.subscribeCustomCharacteristic(mServiceUUID, mCharaUUID, 2);
}
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(context, "Characteristic Subscribed!", Toast.LENGTH_SHORT).show();
}
});
mBluetoothLeService.readCustomDescriptor(mCharaUUID, mServiceUUID);
}
});
checkProperties();
getActionBar().setTitle(mDeviceName);
getActionBar().setDisplayHomeAsUpEnabled(true);
Intent gattServiceIntent = new Intent(this, BluetoothLeService.class);
bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE);
}
private void checkProperties() {
if (properties.indexOf("Write") >= 0) {
} else {
EditButton.setEnabled(false);
}
if (properties.indexOf("Indicate") >= 0) {
} else {
CharaSubscribeButton.setEnabled(false);
}
}
#Override
protected void onResume() {
super.onResume();
registerReceiver(mGattUpdateReceiver, makeGattUpdateIntentFilter());
if (mBluetoothLeService != null) {
final boolean result = mBluetoothLeService.connect(mDeviceAddress);
Log.d(TAG, "Connect request result=" + result);
}
}
#Override
protected void onPause() {
super.onPause();
unregisterReceiver(mGattUpdateReceiver);
}
#Override
protected void onDestroy() {
super.onDestroy();
unbindService(mServiceConnection);
mBluetoothLeService = null;
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.gatt_services, menu);
if (mConnected) {
menu.findItem(R.id.menu_connect).setVisible(false);
menu.findItem(R.id.menu_disconnect).setVisible(true);
} else {
menu.findItem(R.id.menu_connect).setVisible(true);
menu.findItem(R.id.menu_disconnect).setVisible(false);
}
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_connect:
mBluetoothLeService.connect(mDeviceAddress);
return true;
case R.id.menu_disconnect:
mBluetoothLeService.disconnect();
return true;
case android.R.id.home:
onBackPressed();
return true;
}
return super.onOptionsItemSelected(item);
}
private void updateConnectionState(final int resourceId) {
runOnUiThread(new Runnable() {
#Override
public void run() {
mConnectionState.setText(resourceId);
}
});
}
private void displayData(String data) {
if (data != null) {
mDataField.setText(data);
}
}
private void displayDescriptor(final String data) {
if( data != null){
runOnUiThread(new Runnable() {
#Override
public void run() {
mCharaDescriptor.setText(mCharaDescriptor.getText().toString() + "\n" + data);
}
});
}
}
private static IntentFilter makeGattUpdateIntentFilter() {
final IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(BluetoothLeService.ACTION_GATT_CONNECTED);
intentFilter.addAction(BluetoothLeService.ACTION_GATT_DISCONNECTED);
intentFilter.addAction(BluetoothLeService.ACTION_GATT_SERVICES_DISCOVERED);
intentFilter.addAction(BluetoothLeService.ACTION_DATA_AVAILABLE);
intentFilter.addAction(BluetoothLeService.ACTION_DESCRIPTOR_AVAILABLE);
return intentFilter;
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
try {
if (requestCode == IMG_RESULT && resultCode == RESULT_OK
&& null != data) {
Uri URI = data.getData();
String[] FILE = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(URI,
FILE, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(FILE[0]);
ImageDecode = cursor.getString(columnIndex);
cursor.close();
imageViewLoad.setImageBitmap(BitmapFactory
.decodeFile(ImageDecode));
}
} catch (Exception e) {
Toast.makeText(this, "Please try again", Toast.LENGTH_LONG)
.show();
}
}
public void ClickConvert(View view) {
TextView txtView;
txtView=(TextView)findViewById(R.id.textview_byte);
ImageView imageView = (ImageView) findViewById(R.id.imageView1);
Bitmap bitmap = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
imageInByte = baos.toByteArray();
String response ;
response = byteArrayToString(imageInByte);
// response = new sun.misc.BASE64Encoder().encode(imageInByte);
//String s = javax.xml.bind.DatatypeConverter.printHexBinary(imageInByte);
//String str = new String(imageInByte, "UTF-8");
txtView.setText(response);
}
public static String byteArrayToString(byte[] data){
String response = Arrays.toString(data);
String[] byteValues = response.substring(1, response.length() - 1).split(",");
byte[] bytes = new byte[byteValues.length];
for (int i=0, len=bytes.length; i<len; i++) {
bytes[i] = Byte.parseByte(byteValues[i].trim());
}
String str = new String(bytes);
return str.toLowerCase();
}
public void ClickImage(View view) {
final int num= imageInByte.length;
int i,j,l,h;
j=num/20;
Toast.makeText(getApplicationContext(), "loop : " + j, Toast.LENGTH_SHORT).show();
for (i = 0; i <= j; i++) {
l=20*i;
h=20*(i+1);
SystemClock.sleep(40); //ms
SendByte = Arrays.copyOfRange(imageInByte, l, h);
String str = new String(SendByte);
mBluetoothLeService.writeCustomCharacteristic(str, mServiceUUID, mCharaUUID);
runOnUiThread(new Runnable() {
#Override
public void run() {
}
});
mBluetoothLeService.readCustomDescriptor(mCharaUUID, mServiceUUID);
}
}
}
Here is the code for writecustomCharacteristics
public void writeCustomCharacteristic(String str, String serviceUuid, String charaUuid) {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
/*check if the service is available on the device*/
BluetoothGattService mCustomService = mBluetoothGatt.getService(UUID.fromString(serviceUuid));
if(mCustomService == null){
Log.w(TAG, "Custom BLE Service not found");
return;
}
/*byte[] value = parseHex(str);
*//*get the read characteristic from the service*//*
BluetoothGattCharacteristic mWriteCharacteristic = mCustomService.getCharacteristic(UUID.fromString(charaUuid));
mWriteCharacteristic.setValue(value);
mBluetoothGatt.writeCharacteristic(mWriteCharacteristic);*/
byte[] strBytes = str.getBytes();
BluetoothGattCharacteristic mWriteCharacteristic = mCustomService.getCharacteristic(UUID.fromString(charaUuid));
mWriteCharacteristic.setValue(strBytes);
mBluetoothGatt.writeCharacteristic(mWriteCharacteristic);
}
I am trying to open camera intent in my app.But I just need to make sure that the image doesn't get saved in either the SD Card or in the Internal Storage.Also the image should get displayed in the app when the picture is clicked.
public class FBCheckInActivity extends Activity{
private CallbackManager callbackManager;
private LoginManager loginManager;
private File mFileTemp;
public static final int REQUEST_CODE_TAKE_PICTURE = 2;
public String path;
Bitmap sharingPhoto;
String caption="";
ImageView chooseImage;
EditText captionText;
Button postFacebook;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.facebook_sharing);
printHashKey();
sharingPhoto= BitmapFactory.decodeResource(this.getResources(), R.drawable.no_image);
FacebookSdk.sdkInitialize(getApplicationContext());
fbSharing(sharingPhoto);
}
private void fbSharing(Bitmap sharingPhoto) {
chooseImage=(ImageView) findViewById(R.id.share_image);
chooseImage.setImageBitmap(sharingPhoto);
captionText=(EditText) findViewById(R.id.caption_text);
postFacebook=(Button) findViewById(R.id.buttonPost);
postFacebook.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
loginFaceBook();
}
});
chooseImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
openCamera();
}
});
captionText.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
caption = captionText.getText().toString();
}
#Override
public void afterTextChanged(Editable s) {
}
});
}
#Override
protected void onResume() {
super.onResume();
}
protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
if(requestCode==REQUEST_CODE_TAKE_PICTURE){
Log.d("zambo","after selecting pic");
path = mFileTemp.getPath();
Log.d("zambo", path);
sharingPhoto = BitmapFactory.decodeFile(path);
chooseImage.setImageBitmap(sharingPhoto);
fbSharing(sharingPhoto);
}
else {
Log.d("zambo","callback manager for facebook sharing");
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
}
public void printHashKey(){
try {
PackageInfo info = getPackageManager().getPackageInfo(
"com.urbanwand",
PackageManager.GET_SIGNATURES);
for (Signature signature : info.signatures) {
MessageDigest md = MessageDigest.getInstance("SHA");
md.update(signature.toByteArray());
Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
}
} catch (PackageManager.NameNotFoundException e) {
} catch (NoSuchAlgorithmException e) {
}
}
public void loginFaceBook(){
callbackManager = CallbackManager.Factory.create();
List<String> permissionNeeds = Arrays.asList("publish_actions");
loginManager = LoginManager.getInstance();
loginManager.logInWithPublishPermissions(FBCheckInActivity.this, permissionNeeds);
loginManager.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
AccessToken accessToken = loginResult.getAccessToken();
graphApi(accessToken);
}
#Override
public void onCancel() {
Toast.makeText(FBCheckInActivity.this, "cancel", Toast.LENGTH_SHORT).show();
}
#Override
public void onError(FacebookException error) {
Toast.makeText(FBCheckInActivity.this, "error", Toast.LENGTH_SHORT).show();
}
});
}
public void openCamera(){
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
try {
Uri mImageCaptureUri = null;
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
mFileTemp = new File(Environment
.getExternalStorageDirectory(), "IMG_"
+ ".jpg");
mImageCaptureUri = Uri.fromFile(mFileTemp);
} else {
/*
* The solution is taken from here:
* http://stackoverflow.com/questions
* /10042695/how-to-get-camera-result-as-a-uri-in-data-folder
*/
mFileTemp = new File(getFilesDir(), "IMG_"
+ ".jpg");
mImageCaptureUri = InternalStorageContentProvider.CONTENT_URI;
}
intent.putExtra(MediaStore.EXTRA_OUTPUT,
mImageCaptureUri);
intent.putExtra("return-data", true);
startActivityForResult(intent, REQUEST_CODE_TAKE_PICTURE);
} catch (ActivityNotFoundException e) {
e.printStackTrace();
//Log.d("User_Photo", "cannot take picture", e);
}
}
public void graphApi(AccessToken accessToken){
GraphRequest request = GraphRequest.newUploadPhotoRequest(accessToken, "me/photos", sharingPhoto, caption, null, new GraphRequest.Callback() {
#Override
public void onCompleted(GraphResponse response) {
Log.d("zambo","On Completed Callback");
AlertDialog.Builder completeDialog = new AlertDialog.Builder(FBCheckInActivity.this);
completeDialog.setMessage("Thank you for sharing your happiness!!");
completeDialog.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
startActivity(new Intent(FBCheckInActivity.this, DinerHotSellers.class));
overridePendingTransition(0, 0);
}
});
completeDialog.create();
completeDialog.show();
}
});
request.executeAsync();
}
This is what i have implemnted till now. But it doesn't give me the image back in the activity if it is stored in SD Card. Also the image is getting saved. Is is possible not to save the image in the storage media?
Thanks
A simple demo:
maim.xml
<button android:id="#+id/button1" android:layout_height="wrap_content" android:layout_width="match_parent" android:text="TakePhoto" button="">
<imageview android:id="#+id/imageView1" android:layout_gravity="center_horizontal" android:layout_height="wrap_content" android:layout_width="wrap_content"></imageview></button>
MainActivity.java(not all)
public static final int TAKE_PHOTO = 1;
public static final int CROP_PHOTO = 2;
private Button takePhotoBn;
private ImageView showImage;
private Uri imageUri;
private String filename;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
takePhotoBn = (Button) findViewById(R.id.button1);
showImage = (ImageView) findViewById(R.id.imageView1);
takePhotoBn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
SimpleDateFormat format = new SimpleDateFormat(yyyyMMddHHmmss);
Date date = new Date(System.currentTimeMillis());
filename = format.format(date);
//File outputImage = new File(Environment.getExternalStorageDirectory(),test.jpg);
File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
File outputImage = new File(path,filename+.jpg);
try {
if(outputImage.exists()) {
outputImage.delete();
}
outputImage.createNewFile();
} catch(IOException e) {
e.printStackTrace();
}
imageUri = Uri.fromFile(outputImage);
Intent intent = new Intent(android.media.action.IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent,TAKE_PHOTO);
}
});
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment())
.commit();
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode != RESULT_OK) {
Toast.makeText(MainActivity.this, ActivityResult resultCode error, Toast.LENGTH_SHORT).show();
return;
}
switch(requestCode) {
case TAKE_PHOTO:
Intent intent = new Intent(com.android.camera.action.CROP); //cut
intent.setDataAndType(imageUri, image/*);
intent.putExtra(scale, true);
intent.putExtra(aspectX, 1);
intent.putExtra(aspectY, 1);
intent.putExtra(outputX, 340);
intent.putExtra(outputY, 340);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
Toast.makeText(MainActivity.this, " ", Toast.LENGTH_SHORT).show();
//flush
Intent intentBc = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
intentBc.setData(imageUri);
this.sendBroadcast(intentBc);
startActivityForResult(intent, CROP_PHOTO);
break;
case CROP_PHOTO:
try {
Bitmap bitmap = BitmapFactory.decodeStream(
getContentResolver().openInputStream(imageUri));
Toast.makeText(MainActivity.this, imageUri.toString(), Toast.LENGTH_SHORT).show();
showImage.setImageBitmap(bitmap); //show image
} catch(FileNotFoundException e) {
e.printStackTrace();
}
break;
default:
break;
}
}
you need add permission
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE">
<uses-permission android:name="android.permission.CAMERA"> </uses-permission></uses-permission>