有两种实现方法
1、第一种方式：Timer
/**
* Description：自定义Timer
* <p>
* Created by Mjj on 2016/12/4.
*/ public class TimeCount extends CountDownTimer { private Button button; //参数依次为总时长,和计时的时间间隔
public TimeCount(Button button, long millisInFuture, long countDownInterval) {
super(millisInFuture, countDownInterval);
this.button = button;
} //计时过程显示
@Override
public void onTick(long millisUntilFinished) {
String time = "(" + millisUntilFinished / 1000 + ")秒";
setButtonInfo(time, "#c1c1c1", false);
} //计时完毕时触发
@Override
public void onFinish() {
setButtonInfo("重新获取", "#f95353", true);
} /**
* 验证按钮在点击前后相关设置
*
* @param content 要显示的内容
* @param color 颜色值
* @param isClick 是否可点击
*/
private void setButtonInfo(String content, String color, boolean isClick) {
button.setText(content);
button.setBackgroundColor(Color.parseColor(color));
button.setClickable(isClick);
}
}
2、第二种方式：Handler
/**
* 第二种方式：使用Handler
* <p>
* 静态内部类：避免内存泄漏
*/
private static class MyHandler extends Handler { private final WeakReference<MainActivity> weakReference; public MyHandler(MainActivity activity) {
weakReference = new WeakReference<MainActivity>(activity);
} @Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
MainActivity activity = weakReference.get();
if (activity != null) {
switch (msg.what) {
case 0:
if (msg.arg1 == 0) {
btn2.setText("重新获取");
btn2.setBackgroundColor(Color.parseColor("#f95353"));
btn2.setClickable(true);
} else {
btn2.setText("(" + msg.arg1 + ")秒");
btn2.setBackgroundColor(Color.parseColor("#c1c1c1"));
btn2.setClickable(false);
}
break;
}
}
}
} /**
* 监听按钮下直接调用即可
*/
private void sendMessageClick() {
new Thread(new Runnable() {
@Override
public void run() {
for (int i = 59; i >= 0; i--) {
Message msg = myHandler.obtainMessage();
msg.arg1 = i;
myHandler.sendMessage(msg);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
}