/* Just Image Capture */
public class MainActivity extends AppCompatActivity {
    Button bt;
    static final int REQUEST_IMAGE_CAPTURE = 1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        bt = (Button) findViewById(R.id.button);

        bt.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(i, REQUEST_IMAGE_CAPTURE);
            }
        });

    }
}


/*Image Capture and Show in ImageView */
public class MainActivity extends AppCompatActivity {
    Button b1;
    ImageView img;
    public static final int request = 1000;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        b1 = (Button) findViewById(R.id.button);
        img = (ImageView) findViewById(R.id.imageView);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(i, request);
            }
        });
    }
    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == request) {
            Bitmap p = (Bitmap) data.getExtras().get("data");
            img.setImageBitmap(p);
        }
    }
}