Preview.java

package org.edx.mobile.player;

import android.content.Context;
import android.graphics.Color;
import android.graphics.SurfaceTexture;
import android.util.AttributeSet;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.TextureView;

public class Preview extends TextureView implements TextureView.SurfaceTextureListener {

    public Preview(Context context) {
        super(context);
        init();
    }
    
    public Preview(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public Preview(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    private void init() {
        setSurfaceTextureListener(this);
    }

    @Override
    public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {

    }

    @Override
    public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {

    }

    @Override
    public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
        return false;
    }

    @Override
    public void onSurfaceTextureUpdated(SurfaceTexture surface) {

    }
}