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
 }