How to draw a path in a view in android

Question

Hi, I need to draw a track in simple lines on a canvas so that it draws out a red rectangle with white lines. But he does not emit anything that I miss. my code is:

Canvas canvas = new Canvas(); Paint paint = new Paint(); paint.setStyle(Paint.Style.FILL); paint.setColor(Color.RED); canvas.drawPaint(paint); Path path = new Path(); //canvas.drawColor(Color.CYAN); for (int i = 5; i < 50; i++) { path.moveTo(4, i-1); path.lineTo(4, i); } path.close(); paint.setStrokeWidth(3); paint.setPathEffect(null); paint.setColor(Color.WHITE); paint.setStyle(Paint.Style.STROKE); canvas.drawPath(path, paint); for (int i = 0; i < 3; i++) { View iview = inflater.inflate(R.layout.linear_layout, null); if(i == 0){ iview.findViewById(R.id.imageView1).setBackgroundResource(R.drawable.distspeed); } if(i == 1){ iview.findViewById(R.id.imageView1).setBackgroundResource(R.drawable.hxmdist); } if(i == 2){ iview.findViewById(R.id.imageView1).setBackgroundResource(R.drawable.hxmspeeed); } iview.draw(canvas); realViewSwitcher.addView(iview); } 

Answer 1

i publishes only the working code:

altered activity:

 for (int i = 0; i < 2; i++) { MyView mView = new MyView(this,i); realViewSwitcher.addView(mView); } 

Myview:

 public class MyView extends View { public MyView(Context context, int kolki) { super(context); if (kolki == 0){ this.setBackgroundResource(R.drawable.distspeed); } if (kolki == 1){ this.setBackgroundResource(R.drawable.hxmdist); } } public void setBackgroundResource (int resid){ super.setBackgroundResource(resid); } public void onDraw(Canvas c){ super.onDraw(c); Paint paint = new Paint(); Path path = new Path(); paint.setStyle(Paint.Style.FILL); paint.setColor(Color.TRANSPARENT); c.drawPaint(paint); for (int i = 50; i < 100; i++) { path.moveTo(i, i-1); path.lineTo(i, i); } path.close(); paint.setStrokeWidth(3); paint.setPathEffect(null); paint.setColor(Color.BLACK); paint.setStyle(Paint.Style.STROKE); c.drawPath(path, paint); } }