Android實現擷取驗證碼效果

Android實現擷取驗證碼效果

功能非常簡單就是定義一個CountDownTimer直接看代碼

首先在XML裡面放個按鈕代碼如下：

 

下面就是主代碼：

 

 

package com.example.countdowntimer;import android.os.Bundle;import android.os.CountDownTimer;import android.app.Activity;import android.graphics.Color;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class MainActivity extends Activity {private TimeCount time;private Button btnGetcode;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);time = new TimeCount(60000, 1000);btnGetcode=(Button) findViewById(R.id.btn_getcode);btnGetcode.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {time.start();}});}class TimeCount extends CountDownTimer {public TimeCount(long millisInFuture, long countDownInterval) {super(millisInFuture, countDownInterval);}@Overridepublic void onTick(long millisUntilFinished) {btnGetcode.setBackgroundColor(Color.parseColor(#B6B6D8));btnGetcode.setClickable(false);btnGetcode.setText(millisUntilFinished / 1000 + 秒後可重新發送);}@Overridepublic void onFinish() {btnGetcode.setText(重新擷取驗證碼);btnGetcode.setClickable(true);btnGetcode.setBackgroundColor(Color.parseColor(#4EB84A));}}}