安卓 点击发送验证码倒计时

自定义类：

import android.content.Context;
import android.os.CountDownTimer;
import android.util.AttributeSet;

import androidx.appcompat.widget.AppCompatTextView;

import java.util.Locale;

public class CountDownView extends AppCompatTextView {

    public CountDownView(Context context) {
        super(context);
    }

    public CountDownView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CountDownView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    private static final int COUNT_DOWN_SEConDS = 60;

    private static final int COUNT_DOWN_INTERVAL_SEConDS = 1;

    private CountDownTimer mCountDownTimer = new CountDownTimer(COUNT_DOWN_SEConDS * 1000L,
            COUNT_DOWN_INTERVAL_SEConDS * 1000L) {
        @Override
        public void onTick(long millisUntilFinished) {
            setText(String.format(Locale.getDefault(), "%ds", millisUntilFinished / 1000));
        }

        @Override
        public void onFinish() {
            setText("重新获取");
            setEnabled(true);
        }
    };

    public void start() {
        mCountDownTimer.start();
        setEnabled(false);
    }

    public void cancel() {
        mCountDownTimer.cancel();
    }

}

xml使用：

activity:

    @BindView(R.id.btn_get_sms_code)
    CountDownView btn_get_sms_code;

	// 发送验证码
    @OnClick(R.id.btn_get_sms_code)
    void getSmsCodeClick(CountDownView view) {
	    if (view.isEnabled()) {
	    // TOTO 请求发送验证码的接口，成功后调用 .start();
    	btn_get_sms_code.start();
	    }
    }

	// 页面关闭时 销毁
	@Override
    protected void onDestroy() {
        btn_get_sms_code.cancel();
        super.onDestroy();
    }