Android实现获取验证码效果

功能非常简单就是定义一个CountDownTimer直接看代码

首先在XML里面放个按钮代码如下：

importandroid.os.Bundle;

importandroid.os.CountDownTimer;

importandroid.app.Activity;

importandroid.graphics.Color;

importandroid.view.Menu;

importandroid.view.View;

importandroid.view.View.OnClickListener;

importandroid.widget.Button;

 

publicclass MainActivity extendsActivity {

    privateTimeCount time;

    privateButton btnGetcode;

    @Override

    protectedvoid onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        time = newTimeCount(60000,1000);

        btnGetcode=(Button) findViewById(R.id.btn_getcode);

        btnGetcode.setOnClickListener(newOnClickListener() {

             

            @Override

            publicvoid onClick(View v) {

                time.start();

            }

        });

    }

    classTimeCount extendsCountDownTimer {

 

        publicTimeCount(longmillisInFuture, longcountDownInterval) {

            super(millisInFuture, countDownInterval);

        }

 

        @Override

        publicvoid onTick(longmillisUntilFinished) {

            btnGetcode.setBackgroundColor(Color.parseColor(#B6B6D8));

            btnGetcode.setsetEnabled(false);

            btnGetcode.setText(millisUntilFinished / 1000+ 秒后可重新发送);

        }

 

        @Override

        publicvoid onFinish() {

            btnGetcode.setText(重新获取验证码);

            btnGetcode.setEnabled(true);

            btnGetcode.setBackgroundColor(Color.parseColor(#4EB84A));

 

        }

    }

 

}