Android仿Keep运动休息倒计时圆形控件

<com.KeepCountdownView.KeepCountdownView
   android:id="@+id/keep1"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   //各种可选属性
   app:arcColor="#FB5858"
   app:numColor="#7CB4EF"
   app:XXX/ 

 @Override
 protected void onCreate(@Nullable Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.keep_act);
  ButterKnife.bind(this);
  //倒计时监听
  keep1.setCountdownListener(new KeepCountdownView.CountdownListener() {
   @Override
   public void onStart() {
   }

   @Override
   public void onEnd() {
    
   }
  });
 }

 @OnClick(R.id.b1)
 public void b1(View v) {
  keep1.plus(5);//增加5s

 }

 @OnClick(R.id.b2)
 public void b2() {
  keep1.post(new Runnable() {
   @Override
   public void run() {
    keep1.startCountDown();//开始倒计时
   }
  });
 }

 @OnClick(R.id.b4)
 public void b4() {
  keep1.reset();//重置
 }