Develop Reference

How can I send an image from an imageview, after taking a picture, to pc via bluetooth?

I take photo
Photo gets stored in ImageView
I want to be able to send that photo stored in the ImageView to my pc via Bluetooth when user selects Send To Pharmacy button.
Is this possible? Since the image is constantly changing, how would I do this? I have looked up some tutorials and StackOverflow questions but they all seem to be focused on images in a drawable folder already.
But in this case, the image is different every time the user takes a photo. I just want to know how I can send the current photo that is in the ImageView, and send it to a PC via Bluetooth. Thanks for any help I appreciate this.
package com.cognizant.expressprescriptionregistration;
import static android.os.Environment.getExternalStoragePublicDirectory;
public class Register extends AppCompatActivity {
Button bPicButton;
ImageView imageView;
String pathToFile;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
bPicButton = findViewById(R.id.bTakePhoto);
imageView = findViewById(R.id.imagePrescription);
// Ask for permission for Camera and Storage
if (Build.VERSION.SDK_INT >= 23){
requestPermissions(new String[] {Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 2);
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// if camera successfully pops up and takes photo, set photo in ImageView
if (resultCode == RESULT_OK){
if (requestCode == 1){
Bitmap bitmap = BitmapFactory.decodeFile(pathToFile);
imageView.setImageBitmap(bitmap);
}
}
}
// Take Picture button onClick listener
public void takePhoto(View view) {
setPhotoTaken();
}
private void setPhotoTaken() {
Intent takePhoto = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Make sure the app can handle our intent
if (takePhoto.resolveActivity(getPackageManager()) != null) {
File photoFile = null;
// Created Photo file
photoFile = createPhotoFile();
// Get path of our photo file
if (photoFile != null) {
pathToFile = photoFile.getAbsolutePath();
Uri photoUri = FileProvider.getUriForFile(Register.this, "com.cognizant.expressprescriptionregistration.fileprovider", photoFile);
takePhoto.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
startActivityForResult(takePhoto, 1);
}
}
}
// Create the file where the photo will be stored
private File createPhotoFile() {
// Name of file
String name = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
// Location of storage
File storedDir = getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File photo = null;
try {
// Creates file in storedDir
photo = File.createTempFile(name, ".jpg", storedDir);
} catch (IOException e) {
e.printStackTrace();
}
return photo;
}
// Send to Pharmacy Button
public void sendToPharmacy(View view) {
}
}

You can get current image from ImageView by getting the bitmap from ImageView:
Bitmap bitmap = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
After this you can save and share the bitmap.

How to open front camera in android app

I am creating an app in which I'm using front camera.Please tell me how to open front camera when click on button using following code.My app is crashed when i click on button to open the camera.
public class MakePhotoActivity extends Activity {
// LogCat tag
private static final String TAG = MainActivity.class.getSimpleName();
// Camera activity request codes
private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
private static final int CAMERA_CAPTURE_VIDEO_REQUEST_CODE = 200;
public static final int MEDIA_TYPE_IMAGE = 1;
public static final int MEDIA_TYPE_VIDEO = 2;
private Uri fileUri; // file url to store image/video
private Button btnCapturePicture, btnRecordVideo;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_make_photo);
// Changing action bar background color
// These two lines are not needed
// getActionBar().setBackgroundDrawable(new ColorDrawable(Color.parseColor(getResources().getString(R.color.action_bar))));
btnCapturePicture = (Button) findViewById(R.id.btnCapturePicture);
btnRecordVideo = (Button) findViewById(R.id.btnRecordVideo);
/**
* Capture image button click event
*/
btnCapturePicture.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// capture picture
captureImage();
}
});
/**
* Record video button click event
*/
btnRecordVideo.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// record video
recordVideo();
}
});
// Checking camera availability
if (!isDeviceSupportCamera()) {
Toast.makeText(getApplicationContext(),
"Sorry! Your device doesn't support camera",
Toast.LENGTH_LONG).show();
// will close the app if the device does't have camera
finish();
}
}
/**
* Checking device has camera hardware or not
* */
private boolean isDeviceSupportCamera() {
if (getApplicationContext().getPackageManager().hasSystemFeature(
PackageManager.FEATURE_CAMERA)) {
// this device has a camera
return true;
} else {
// no camera on this device
return false;
}
}
/**
* Launching camera app to capture image
*/
private void captureImage() {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
// start the image capture Intent
//intent.putExtra("android.intent.extras.CAMERA_FACING", 1);
startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}
/**
* Launching camera app to record video
*/
private void recordVideo() {
Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);
// set video quality
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file
// name
// start the video capture Intent
startActivityForResult(intent, CAMERA_CAPTURE_VIDEO_REQUEST_CODE);
}
/**
* Here we store the file url as it will be null after returning from camera
* app
*/
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// save file url in bundle as it will be null on screen orientation
// changes
outState.putParcelable("file_uri", fileUri);
}
#Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
// get the file url
fileUri = savedInstanceState.getParcelable("file_uri");
}
/**
* Receiving activity result method will be called after closing the camera
* */
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// if the result is capturing Image
if (requestCode == CAMERA_CAPTURE_IMAGE_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
// successfully captured the image
// launching upload activity
launchUploadActivity(true);
} else if (resultCode == RESULT_CANCELED) {
// user cancelled Image capture
Toast.makeText(getApplicationContext(),
"User cancelled image capture", Toast.LENGTH_SHORT)
.show();
} else {
// failed to capture image
Toast.makeText(getApplicationContext(),
"Sorry! Failed to capture image", Toast.LENGTH_SHORT)
.show();
}
} else if (requestCode == CAMERA_CAPTURE_VIDEO_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
// video successfully recorded
// launching upload activity
launchUploadActivity(false);
} else if (resultCode == RESULT_CANCELED) {
// user cancelled recording
Toast.makeText(getApplicationContext(),
"User cancelled video recording", Toast.LENGTH_SHORT)
.show();
} else {
// failed to record video
Toast.makeText(getApplicationContext(),
"Sorry! Failed to record video", Toast.LENGTH_SHORT)
.show();
}
}
}
private void launchUploadActivity(boolean isImage){
/* Intent i = new Intent(MakePhotoActivity.this, UploadActivity.class);
i.putExtra("filePath", fileUri.getPath());
i.putExtra("isImage", isImage);
startActivity(i);*/
}
/**
* ------------ Helper Methods ----------------------
* */
/**
* Creating file uri to store image/video
*/
public Uri getOutputMediaFileUri(int type) {
return Uri.fromFile(getOutputMediaFile(type));
}
/**
* returning image / video
*/
private static File getOutputMediaFile(int type) {
// External sdcard location
File mediaStorageDir = new File(
Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
Config.IMAGE_DIRECTORY_NAME);
// Create the storage directory if it does not exist
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
Log.d(TAG, "Oops! Failed create " + Config.IMAGE_DIRECTORY_NAME + " directory");
return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",
Locale.getDefault()).format(new Date());
File mediaFile;
if (type == MEDIA_TYPE_IMAGE) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".jpg");
} else {
return null;
}
return mediaFile;
}
}
when i click on button to open the camera app is crashed. i am get this error
07-12 14:02:50.028 15360-15360/com.camerimageuploadd E/AndroidRuntime: FATAL >EXCEPTION: main
Process: com.camerimageuploadd, PID: 15360
java.lang.NullPointerException: file
at android.net.Uri.fromFile(Uri.java:453)
at
com.camerimageuploadd.MakePhotoActivity.getOutputMediaFileUri(MakePhotoActivity.java:228)
at
com.camerimageuploadd.MakePhotoActivity.captureImage(MakePhotoActivity.java:110)
at
com.camerimageuploadd.MakePhotoActivity.access$000(MakePhotoActivity.java:27)
at
com.camerimageuploadd.MakePhotoActivity$1.onClick(MakePhotoActivity.java:64)
at android.view.View.performClick(View.java:6294)
at android.view.View$PerformClick.run(View.java:24770)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Please help how can i resolved this.
Thanks

its throwing null ponter exception because your code is trying to acces file which is not yet captured by camera
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
and
fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);
i suggest to use this both lines in onActivityResult
your updated methods is
private void captureImage() {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}
and
private void recordVideo() {
Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(intent, CAMERA_CAPTURE_VIDEO_REQUEST_CODE);
}
Your OnActivityResult
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// if the result is capturing Image
if (requestCode == CAMERA_CAPTURE_IMAGE_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
Toast.makeText(getApplicationContext(),""+fileUri,Toast.LENGTH_LONG).show();
// fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
// successfully captured the image
// launching upload activity
launchUploadActivity(true);
} else if (resultCode == RESULT_CANCELED) {
// user cancelled Image capture
Toast.makeText(getApplicationContext(),
"User cancelled image capture", Toast.LENGTH_SHORT)
.show();
} else {
// failed to capture image
Toast.makeText(getApplicationContext(),
"Sorry! Failed to capture image", Toast.LENGTH_SHORT)
.show();
}
} else if (requestCode == CAMERA_CAPTURE_VIDEO_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);
Toast.makeText(getApplicationContext(),""+fileUri,Toast.LENGTH_LONG).show();
// video successfully recorded
// launching upload activity
launchUploadActivity(false);
} else if (resultCode == RESULT_CANCELED) {
// user cancelled recording
Toast.makeText(getApplicationContext(),
"User cancelled video recording", Toast.LENGTH_SHORT)
.show();
} else {
// failed to record video
Toast.makeText(getApplicationContext(),
"Sorry! Failed to record video", Toast.LENGTH_SHORT)
.show();
}
}
}

Cannot Upload Image From Gallery in Android Studio

I want to upload image from gallery in my android app. When I click on button, the gallery should be opened. After selecting image, I want to open another activity named UploadActivity. There the thumbnail of the image should be previewed. The Upload Button will below the thumbnail.
But when I Choose photo from gallery, then the thumbnail of the image are not previewing. I am unable to upload the photo also. My Code goes here: (Scan.Java)
private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
public static final int MEDIA_TYPE_IMAGE = 1;
private static final int SELECT_IMAGE = 2;
private Uri fileUri; // file url to store image/video
ImageView dummy;
private Button btnCapturePicture;
private Button btnGallery;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.scan);
dummy = (ImageView) findViewById(R.id.dummyphoto);
btnCapturePicture = (Button) findViewById(R.id.btnCapturePicture);
btnGallery = (Button) findViewById(R.id.btnGallery);
/**
* Capture image button click event
*/
btnCapturePicture.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// capture picture
captureImage();
}
});
btnGallery.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View v){
openGallery();
}
});
// Checking camera availability
if (!isDeviceSupportCamera()) {
Toast.makeText(getApplicationContext(),
"Sorry! Your device doesn't support camera",
Toast.LENGTH_LONG).show();
// will close the app if the device does't have camera
finish();
}
}
/**
* Checking device has camera hardware or not
* */
private boolean isDeviceSupportCamera() {
if (getApplicationContext().getPackageManager().hasSystemFeature(
PackageManager.FEATURE_CAMERA)) {
// this device has a camera
return true;
} else {
// no camera on this device
return false;
}
}
/**
* Launching camera app to capture image
*/
private void captureImage() {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
// start the image capture Intent
startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}
/**
* Launching Gallery to Choose Image
*/
private void openGallery(){
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(Intent.createChooser(intent, "Select Image"),SELECT_IMAGE);
}
/**
* Here we store the file url as it will be null after returning from camera
* app
*/
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// save file url in bundle as it will be null on screen orientation
// changes
outState.putParcelable("file_uri", fileUri);
}
#Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
// get the file url
fileUri = savedInstanceState.getParcelable("file_uri");
}
/**
* Receiving activity result method will be called after closing the camera
* */
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// if the result is capturing Image
if (requestCode == CAMERA_CAPTURE_IMAGE_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
// successfully captured the image
// launching upload activity
launchUploadActivity(true);
} else if (resultCode == RESULT_CANCELED) {
// user cancelled Image capture
Toast.makeText(getApplicationContext(),
"User cancelled image capture", Toast.LENGTH_SHORT)
.show();
} else {
// failed to capture image
Toast.makeText(getApplicationContext(),
"Sorry! Failed to capture image", Toast.LENGTH_SHORT)
.show();
}
}
else if (requestCode == SELECT_IMAGE)
{
if (resultCode == Activity.RESULT_OK)
{
if (data != null)
{
launchUploadActivity(true);
}
} else if (resultCode == Activity.RESULT_CANCELED)
{
Toast.makeText(getApplicationContext(), "Cancelled", Toast.LENGTH_SHORT).show();
}
}
}
private void launchUploadActivity(boolean isImage){
Intent i = new Intent(Scan.this, UploadActivity.class);
i.putExtra("filePath", fileUri.getPath());
i.putExtra("isImage", isImage);
startActivity(i);
}
UploadActivity.Java Code goes here:
private ProgressBar progressBar;
private String filePath = null;
private TextView txtPercentage;
private ImageView imgPreview;
private Button btnUpload;
long totalSize = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload);
txtPercentage = (TextView) findViewById(R.id.txtPercentage);
btnUpload = (Button) findViewById(R.id.btnUpload);
progressBar = (ProgressBar) findViewById(R.id.progressBar);
imgPreview = (ImageView) findViewById(R.id.imgPreview);
// Receiving the data from previous activity
Intent i = getIntent();
// image path that is captured in previous activity
filePath = i.getStringExtra("filePath");
// boolean flag to identify the media type, image
boolean isImage = i.getBooleanExtra("isImage", true);
if (filePath != null) {
// Displaying the image on the screen
previewMedia(isImage);
} else {
Toast.makeText(getApplicationContext(),
"Sorry, file path is missing!", Toast.LENGTH_LONG).show();
}
btnUpload.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// uploading the file to server
new UploadFileToServer().execute();
}
});
}
/**
* Displaying captured image on the screen
* */
private void previewMedia(boolean isImage) {
// Checking whether captured media is image
if (isImage) {
imgPreview.setVisibility(View.VISIBLE);
// bimatp factory
BitmapFactory.Options options = new BitmapFactory.Options();
// down sizing image as it throws OutOfMemory Exception for larger
// images
options.inSampleSize = 8;
final Bitmap bitmap = BitmapFactory.decodeFile(filePath, options);
imgPreview.setImageBitmap(bitmap);
} else {
imgPreview.setVisibility(View.GONE);
}
}
/**
* Uploading the file to server
* */
private class UploadFileToServer extends AsyncTask<Void, Integer, String> {
#Override
protected void onPreExecute() {
// setting progress bar to zero
progressBar.setProgress(0);
super.onPreExecute();
}
#Override
protected void onProgressUpdate(Integer... progress) {
// Making progress bar visible
progressBar.setVisibility(View.VISIBLE);
// updating progress bar value
progressBar.setProgress(progress[0]);
// updating percentage value
txtPercentage.setText(String.valueOf(progress[0]) + "%");
}
#Override
protected String doInBackground(Void... params) {
return uploadFile();
}
#SuppressWarnings("deprecation")
private String uploadFile() {
String responseString = null;
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(Config.FILE_UPLOAD_URL);
try {
AndroidMultiPartEntity entity = new AndroidMultiPartEntity(
new ProgressListener() {
#Override
public void transferred(long num) {
publishProgress((int) ((num / (float) totalSize) * 100));
}
});
File sourceFile = new File(filePath);
// Adding file data to http body
entity.addPart("image", new FileBody(sourceFile));
Here is Logcat:
E/MainActivity: Response from server: java.io.FileNotFoundException: /mnt/sdcard/Pictures/master/IMG_20170127_152930.jpg: open failed: ENOENT (No such file or directory)

File path = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES);
File file = new File(path, "IMG_20170127_152930.jpg");
//Try this.

After these changes i suggested below I hope your problem will be solved:
Remove these two lines from openGallery() because I think they are redundant.
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
They are needed when we use Intent.ACTION_PICK. So after editing openGallery() looks like:
private void openGallery(){
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Image"),SELECT_IMAGE);
}
Add this statement in your onActivityResult() :
fileUri = data.getData();
so it looks:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
...
else if (requestCode == SELECT_IMAGE)
{
if (resultCode == Activity.RESULT_OK)
{
if (data != null)
{
fileUri = data.getData(); //added this line
launchUploadActivity(true);
}
} else if (resultCode == Activity.RESULT_CANCELED)
{
Toast.makeText(getApplicationContext(), "Cancelled", Toast.LENGTH_SHORT).show();
}
}
}
Same applies to the camera intent also.
Request EXTERNAL_STORAGE permission and also run time permission if your target Android version is 6.0 or above.
EDIT:
Sorry couple of things I have not mentioned those are required are given bellow:
You may like to send the Uri instead of path this way:
private void launchUploadActivity(boolean isImage){
Intent i = new Intent(this, UploadActivity.class);
i.setData(fileUri);
// i.putExtra("filePath", fileUri.getPath());
i.putExtra("isImage", isImage);
startActivity(i);
}
And then in UploadActivity do the following:
...
private InputStream mInputStream; // Use this stream to create bitmap and upload to server
#Override
protected void onCreate(Bundle savedInstanceState) {
...
// Receiving the data from previous activity
Intent i = getIntent();
try {
mInputStream = getContentResolver().openInputStream(i.getData());
} catch (FileNotFoundException e) {
e.printStackTrace();
}
...
}
...
...
private void previewMedia(boolean isImage){
if (isImage) {
imgPreview.setVisibility(View.VISIBLE);
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 8;
Bitmap bitmap = BitmapFactory.decodeStream(mInputStream,null,options);
imgPreview.setImageBitmap(bitmap);
} else {
imgPreview.setVisibility(View.GONE);
}
}
...
This works for me and hope will work on you too.

ANDROID: Remove 'save' and 'discard' buttons

How can I remove confirmation display ('save' and 'discard' buttons display) after capturing image?
I want to remove second step without changing application functionality: after startActivityForResult function go to previewCapturedImage() function.
It's my code:
public class MainActivity extends Activity {
private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
public static final int MEDIA_TYPE_IMAGE = 1;
private static final String IMAGE_DIRECTORY_NAME = "OpenCV Demo";
private Uri fileUri;
private ImageView imgPreview;
private Button btnCapturePicture;
private FrameLayout frameLayout;
private TextView textView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_8, this, mOpenCVCallBack))
{
Log.e("TEST", "Cannot connect to OpenCV Manager");
}
setContentView(R.layout.activity_main);
}
private void captureImage() {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
// start the image capture Intent
startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// if the result is capturing Image
if (requestCode == CAMERA_CAPTURE_IMAGE_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
// successfully captured the image
// display it in image view
previewCapturedImage();
} else if (resultCode == RESULT_CANCELED) {
// user cancelled Image capture
Toast.makeText(getApplicationContext(),
"User cancelled image capture", Toast.LENGTH_SHORT)
.show();
} else {
// failed to capture image
Toast.makeText(getApplicationContext(),
"Sorry! Failed to capture image", Toast.LENGTH_SHORT)
.show();
}
}
}
private void previewCapturedImage() {
//TODO something
}

How can I remove confirmation display ('save' and 'discard' buttons display) after capturing image?
You can't. That is not your app. That is coming from the user's chosen activity for handling ACTION_IMAGE_CAPTURE. That activity is coming from some other developer's app, and that developer is welcome to do whatever that developer wants. If you wish to delegate taking a picture to a third-party app, you will have to live with however that third-party app wishes to take that picture.

How to use camera in android to capture image and video?

How to use camera in android so that the user can toggle between the camera mode and recorder mode whilst in the same camera app, as you can see the small slide control in the center of the right side of the image below.

The stock camera app is open source. Why not just take a look at how it is implemented?

Use Tow Button One For Image and Other for Video in UI....
/**** Camera / Video Demo ****************/
public class CameraDemoActivity extends Activity {
// Activity request codes
private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
private static final int CAMERA_CAPTURE_VIDEO_REQUEST_CODE = 200;
public static final int MEDIA_TYPE_IMAGE = 1;
public static final int MEDIA_TYPE_VIDEO = 2;
// directory name to store captured images and videos
private static final String IMAGE_DIRECTORY_NAME = "Hello Camera";
private Uri fileUri; // file url to store image/video
private ImageView imgPreview;
private VideoView videoPreview;
private Button btnCapturePicture, btnRecordVideo;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
imgPreview = (ImageView) findViewById(R.id.imgPreview);
videoPreview = (VideoView) findViewById(R.id.videoPreview);
btnCapturePicture = (Button) findViewById(R.id.btnCapturePicture);
btnRecordVideo = (Button) findViewById(R.id.btnRecordVideo);
/*
* Capture image button click event
*/
btnCapturePicture.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// capture picture
captureImage();
}
});
/*
* Record video button click event
*/
btnRecordVideo.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// record video
recordVideo();
}
});
// Checking camera availability
if (!isDeviceSupportCamera()) {
Toast.makeText(getApplicationContext(),
"Sorry! Your device doesn't support camera",
Toast.LENGTH_LONG).show();
// will close the app if the device does't have camera
finish();
}
}
/**
* Checking device has camera hardware or not
* */
private boolean isDeviceSupportCamera() {
if (getApplicationContext().getPackageManager().hasSystemFeature(
PackageManager.FEATURE_CAMERA)) {
// this device has a camera
return true;
} else {
// no camera on this device
return false;
}
}
/*
* Capturing Camera Image will lauch camera app requrest image capture
*/
private void captureImage() {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
// start the image capture Intent
startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}
/*
* Here we store the file url as it will be
* null after returning from camera
* app
*/
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// save file url in bundle as it will be null on scren orientation
// changes
outState.putParcelable("file_uri", fileUri);
}
#Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
// get the file url
fileUri = savedInstanceState.getParcelable("file_uri");
}
/*
* Recording video
*/
private void recordVideo() {
Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);
// set video quality
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the
// image file
// name
// start the video capture Intent
startActivityForResult(intent, CAMERA_CAPTURE_VIDEO_REQUEST_CODE);
}
/**
* Receiving activity result method
* will be called after closing the camera
* */
#Override
protected void onActivityResult(int requestCode,
int resultCode, Intent data) {
// if the result is capturing Image
if (requestCode == CAMERA_CAPTURE_IMAGE_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
// successfully captured the image
// display it in image view
previewCapturedImage();
} else if (resultCode == RESULT_CANCELED) {
// user cancelled Image capture
Toast.makeText(getApplicationContext(),
"User cancelled image capture", Toast.LENGTH_SHORT)
.show();
} else {
// failed to capture image
Toast.makeText(getApplicationContext(),
"Sorry! Failed to capture image", Toast.LENGTH_SHORT)
.show();
}
} else if (requestCode == CAMERA_CAPTURE_VIDEO_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
// video successfully recorded
// preview the recorded video
previewVideo();
} else if (resultCode == RESULT_CANCELED) {
// user cancelled recording
Toast.makeText(getApplicationContext(),
"User cancelled video recording", Toast.LENGTH_SHORT)
.show();
} else {
// failed to record video
Toast.makeText(getApplicationContext(),
"Sorry! Failed to record video", Toast.LENGTH_SHORT)
.show();
}
}
}
/*
* Display image from a path to ImageView
*/
private void previewCapturedImage() {
try {
// hide video preview
videoPreview.setVisibility(View.GONE);
imgPreview.setVisibility(View.VISIBLE);
// bimatp factory
BitmapFactory.Options options = new BitmapFactory.Options();
// downsizing image as it throws OutOfMemory Exception for larger
// images
options.inSampleSize = 8;
final Bitmap bitmap = BitmapFactory.decodeFile(fileUri.getPath(),
options);
imgPreview.setImageBitmap(bitmap);
} catch (NullPointerException e) {
e.printStackTrace();
}
}
/*
* Previewing recorded video
*/
private void previewVideo() {
try {
// hide image preview
imgPreview.setVisibility(View.GONE);
videoPreview.setVisibility(View.VISIBLE);
videoPreview.setVideoPath(fileUri.getPath());
// start playing
videoPreview.pause();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* ------------ Helper Methods ----------------------
* */
/*
* Creating file uri to store image/video
*/
public Uri getOutputMediaFileUri(int type) {
return Uri.fromFile(getOutputMediaFile(type));
}
/*
* returning image / video
*/
private static File getOutputMediaFile(int type) {
// External sdcard
// location.getExternalStoragePublicDirectory(
// Environment.DIRECTORY_PICTURES),IMAGE_DIRECTORY_NAME);
File mediaStorageDir = new File(
Environment
.getExternalStorageDirectory(),
IMAGE_DIRECTORY_NAME);
// Create the storage directory if it does not exist
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
Log.d(IMAGE_DIRECTORY_NAME, "Oops! Failed create "
+ IMAGE_DIRECTORY_NAME + " directory");
return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMddHHmmss",
Locale.getDefault()).format(new Date());
File mediaFile;
if (type == MEDIA_TYPE_IMAGE) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".jpg");
} else if (type == MEDIA_TYPE_VIDEO) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "VID_" + timeStamp + ".mp4");
} else {
return null;
}
return mediaFile;
}
}

Add toggle button and set some value in it. let say 0 or 1
and then capture image/record video button.
and when toggle value is 0 call camera method and when toggle value is 1 call video method.
here is code for camera and video recording
Capture image
Record Video
implement both classes methods in one class. and then call onSnapClick for camera and startRecording() for video.
Hope this will help.

Try to use default functionality of camera and video like this-
Intent intent1 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
String fileName = "KeyICamImage"+System.currentTimeMillis()+".JPG";
String mPathImage = Environment.getExternalStorageDirectory()+ "/" + fileName;
file = new File(mPathImage);
mImageCaptureUri= Uri.fromFile( file );
try
{
intent1.putExtra(android.provider.MediaStore.EXTRA_OUTPUT,mImageCaptureUri);
startActivityForResult(intent1, PICK_FROM_CAMERA);
}
catch (Exception e)
{
e.printStackTrace();
}
}
});

I don't know is it works or not, but try this
You should have
MediaRecorder recorder;
Camera camera;
Try to switching between video and photo by using
camera.setPreviewDisplay(holder);
or recorder.setPreviewDisplay(holder); in your surfaceCreated(SurfaceHolder holder). When you switching you should recreate surfaceView. Stock camera app recreates whole activity.