Round corner of path with CornerPathEffect

To make a path with rounded corner, simple call setPathEffect() with CornerPathEffect.

  float radius = 50.0f;
  CornerPathEffect cornerPathEffect =
   new CornerPathEffect(radius);
  paint.setPathEffect(cornerPathEffect);

Modify MyShape.java in the example "Draw star on canvas" to draw the star with rounded corner.

package com.example.androiddrawpath;

import android.graphics.Color;
import android.graphics.CornerPathEffect;
import android.graphics.Paint;
import android.graphics.Path;

public class MyShape {

 private Paint paint;
 private Path path;

 public MyShape() {
  paint = new Paint();
  paint.setColor(Color.BLUE);
  paint.setStrokeWidth(3);
  paint.setStyle(Paint.Style.STROKE);
  
  float radius = 50.0f;
  CornerPathEffect cornerPathEffect =
   new CornerPathEffect(radius);
  paint.setPathEffect(cornerPathEffect);
  
  path = new Path();
 }

 public void setCircle(float x, float y, float radius, Path.Direction dir){
  path.reset();
  path.addCircle(x, y, radius, dir);
 }
 
 public void setStar(float x, float y, float radius, float innerRadius, int numOfPt){
  
  double section = 2.0 * Math.PI/numOfPt;
  
  path.reset();
  path.moveTo(
   (float)(x + radius * Math.cos(0)), 
   (float)(y + radius * Math.sin(0)));
  path.lineTo(
   (float)(x + innerRadius * Math.cos(0 + section/2.0)), 
   (float)(y + innerRadius * Math.sin(0 + section/2.0)));
  
  for(int i=1; i<numOfPt; i++){
   path.lineTo(
    (float)(x + radius * Math.cos(section * i)), 
    (float)(y + radius * Math.sin(section * i)));
   path.lineTo(
     (float)(x + innerRadius * Math.cos(section * i + section/2.0)), 
     (float)(y + innerRadius * Math.sin(section * i + section/2.0)));
  }
  
  path.close();
  
 }
 
 public Path getPath(){
  return path;
 }
 
 public Paint getPaint(){
  return paint;
 }
 
}

More example of Drawing Path on canvas of custom View.