takePicture.java

public void takePicture(View view) {
    // Create intent to open camera app
    Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
     // Proceed only if there is a camera app
    if (takePictureIntent.resolveActivity(getPackageManager()) != null) {

        // Attempt to allocate a file to store the photo
        File photoFile;
        try {
            File storageDir = getFilesDir();
            photoFile = File.createTempFile("SNAPSHOT", ".jpg", storageDir);
            photoPath = photoFile.getAbsolutePath();
        } catch (IOException ex) { return; }
         // Send off to the camera app to get a photo
        Uri photoURI = FileProvider.getUriForFile(this, "com.example.clarifaialarm.fileprovider", photoFile);
        takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
        startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
    }
}