Styjun

In my app i want to play video on image. user draw a path from finger when they finished i join last point to first point. so the problem is i want to remove/delete all the point between starting and ending point.

Now i want this want this

below here is my code
and then second how to customize video view. i want to play video in that white area.

public class CanvasView extends View 

 public int width;
 public int height;
 private Bitmap mBitmap,workingBitmap;
 private Canvas mCanvas;
 static Path mPath;
 private Paint mPaint;
 private Paint mBitmapPaint;
 private float mX, mY,startingpoint,endingpoint;
 private static final float TOLERANCE = 5;
 Context context;



 public CanvasView(Context c, AttributeSet attrs) 
 super(c, attrs);
 context = c;
 mPaint = new Paint(Paint.DITHER_FLAG);
 mPaint.setAntiAlias(true);
 mPaint.setDither(true);
 mPaint.setColor(Color.parseColor("#37A1D1"));
 mPaint.setStyle(Paint.Style.STROKE);
 mPaint.setStrokeJoin(Paint.Join.ROUND);
 mPaint.setStrokeCap(Paint.Cap.ROUND);
 mPaint.setStrokeWidth(2);
 mPath = new Path();
 mPaint.setStrokeWidth(4f);
 mBitmapPaint = new Paint(Paint.DITHER_FLAG);


 

 @Override
 protected void onSizeChanged(int w, int h, int oldw, int oldh) 
 super.onSizeChanged(w, h, oldw, oldh);
 mBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.home);
 mCanvas = new Canvas(mBitmap.copy(Bitmap.Config.ARGB_8888, true));

 
 @Override
 protected void onDraw(Canvas canvas) 
 super.onDraw(canvas);
 canvas.drawBitmap(mBitmap,0,0,mBitmapPaint);
 canvas.drawPath(mPath, mPaint);
 


 private void startTouch(float x, float y) 
 mPath.reset();
 mPath.moveTo(x, y);
 startingpoint = x;
 endingpoint = y;
 mX = x;
 mY = y;
 


 private void moveTouch(float x, float y) 
 float dx = Math.abs(x - mX);
 float dy = Math.abs(y - mY);
 if (dx >= TOLERANCE 
 private void upTouch() 
 mPath.lineTo(mX, mY);
 mPath.lineTo(startingpoint,endingpoint);
 mCanvas.drawPath(mPath, mPaint);

 

 //override the onTouchEvent
 @Override
 public boolean onTouchEvent(MotionEvent event) 
 float x = event.getX();
 float y = event.getY();

 switch (event.getAction()) 
 case MotionEvent.ACTION_DOWN:
 startTouch(x, y);
 invalidate();
 break;
 case MotionEvent.ACTION_MOVE:
 moveTouch(x, y);
 invalidate();
 break;
 case MotionEvent.ACTION_UP:
 upTouch();
 invalidate();
 break;
 
 return true;