/** 
 * 第一个参数：TextView控件(需要实现倒计时的TextView) 
 * 第二个参数：倒计时总时间，以毫秒为单位； 
 * 第三个参数：渐变事件，最低1秒，也就是说设置0-1000都是以一秒渐变，设置1000以上改变渐变时间 
 * 第四个个参数：点击textview之前的背景 
 * 第五个参数：点击textview之后的背景 
 */ 
SendSmsTimerUtils mCountDownTimerUtils = new SendSmsTimerUtils(textView, 10000, 1000,R.color.colorAccent,R.color.abcd); 

textView.setOnClickListener(new View.OnClickListener() { 
 
  public void onClick(View v) { 
 
    mCountDownTimerUtils.start(); 
  } 
}); 

public class SendSmsTimerUtils extends CountDownTimer { 
  private int inFuture; 
  private int downInterval; 
  private TextView mTextView; 
 
  public SendSmsTimerUtils(TextView textView, long millisInFuture, long countDownInterval, int inFuture, int downInterval) { 
    super(millisInFuture, countDownInterval); 
    this.mTextView = textView; 
    this.inFuture=inFuture; 
    this.downInterval=downInterval; 
  } 
 
  public void onTick(long millisUntilFinished) { 
    mTextView.setClickable(false); 
    mTextView.setText(millisUntilFinished / 1000 + "秒后可重新发送"); 
    mTextView.setBackgroundResource(downInterval);  
 
    SpannableString spannableString = new SpannableString(mTextView.getText().toString()); 
    ForegroundColorSpan span = new ForegroundColorSpan(Color.RED); 
    //设置秒数为红色 
    if (millisUntilFinished/1000 > 9) { 
      spannableString.setSpan(span, 0, 2, Spannable.SPAN_INCLUSIVE_EXCLUSIVE); 
    } else { 
      spannableString.setSpan(span, 0, 1, Spannable.SPAN_INCLUSIVE_EXCLUSIVE); 
    } 
    mTextView.setText(spannableString); 
  } 
 
  @Override 
  public void onFinish() { 
    mTextView.setText("重新获取验证码"); 
    mTextView.setClickable(true); 
    mTextView.setBackgroundResource(inFuture); 
  } 
}