Open the internal fragment of the camera

Question

Is it possible to use the camera in the form of a fragment so that it does not open another application and does not move away from my special application?

I want something like a SurfaceView with a camera?

Answer 1

Yes it is, check this link .

Basically overwrites SurfaceView and integrates camera picture callback with camera picture callback .

code example:

 /* Surface on which the camera projects it capture results. */ class CameraPreview extends SurfaceView implements SurfaceHolder.Callback { SurfaceHolder mHolder; Camera mCamera; public CameraPreview(Context context, Camera camera) { super(context); mCamera = camera; // Install a SurfaceHolder.Callback so we get notified when the // underlying surface is created and destroyed. mHolder = getHolder(); mHolder.addCallback(this); // deprecated setting, but required on Android versions prior to 3.0 mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } public void surfaceCreated(SurfaceHolder holder) { // The Surface has been created, now tell the camera where to draw the preview. try { mCamera.setPreviewDisplay(holder); mCamera.startPreview(); } catch (IOException e) { e.printStackTrace(); } } public void surfaceDestroyed(SurfaceHolder holder) { // empty. Take care of releasing the Camera preview in your activity. } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { // If your preview can change or rotate, take care of those events here. // Make sure to stop the preview before resizing or reformatting it. if (mHolder.getSurface() == null){ // preview surface does not exist return; } // stop preview before making changes try { mCamera.stopPreview(); } catch (Exception e){ // ignore: tried to stop a non-existent preview } // set preview size and make any resize, rotate or // reformatting changes here // start preview with new settings try { mCamera.setPreviewDisplay(mHolder); mCamera.startPreview(); } catch (Exception e){ e.printStackTrace(); } } } 

with a camera image callback, like:

 private Camera.PictureCallback mPicture = new Camera.PictureCallback() { @Override public void onPictureTaken(byte[] data, Camera camera) { File pictureFile = getOutputMediaFile(); if (pictureFile == null){ Toast.makeText(getActivity(), "Image retrieval failed.", Toast.LENGTH_SHORT) .show(); return; } try { FileOutputStream fos = new FileOutputStream(pictureFile); fos.write(data); fos.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }; 

Answer 2

The native implementation is much better.

XML

 <com.google.android.cameraview.CameraView android:id="@+id/camera" android:layout_width="match_parent" android:layout_height="wrap_content" android:keepScreenOn="true" android:adjustViewBounds="true" app:autoFocus="true" app:aspectRatio="4:3" app:facing="back" app:flash="auto"/> 

Internal activity / fragment

Start camera

  mCameraView.start(); 

Stop camera

  mCameraView.stop(); 

Open Source: Google

Requires API level 9. The library uses the Camera 1 API for API levels 9-20 and Camera2 for 21 and above.