Android Camera preview in a fragment

Question

Until now I have a full working code that plugs in a camera to see the preview of the front camera.

What I\'m trying to do now is to get that camera working inside

Answer 1

At first - use FrameLayout for your camera preview.

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/mainLayout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" />

The second - no need to open camera two times. Your surfaceCreated method.

@Override
public void surfaceCreated(SurfaceHolder holder) {
    try {
        if (mCamera != null) {
            mCamera.setPreviewDisplay(holder);
            mCamera.setPreviewCallback(new Camera.PreviewCallback() {
                @Override
                public void onPreviewFrame(byte[] data, Camera camera) {
                }
            });
        }
    } catch (IOException exception) {
        Log.e(TAG, "IOException caused by setPreviewDisplay()", exception);
    }
}

The third - no need to release camera two times. You did it in Fragment, just remove it from surfaceDestroyed.

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        if (mCamera != null)
        {
//          mCamera.stopPreview();
//          mCamera.release();
        }
    }

And in your fragment.

@Override
public void onPause() {
    super.onPause();

    if (mCamera != null)
    {
        mCamera.stopPreview();
        mCamera.release();
    }
}

And you will see your camera preview in a fragmentas I see. Good luck!

Answer 2

It seems you have attribute cameraId in CameraExtractionFragment and CameraExtraction, but this is assigned a value only in CameraExtractionFragment.

You should remove CameraExtraction.cameraId and use CameraExtractionFragment.cameraId instead.