Android倒计时Button

浏览数：29 / 时间：2015年06月11日

最近做用户绑定，需要用到倒计时的一个Button，就花点时间封装了一个，非常简单，效果图如下：

1.TimeButton 自定义倒计时Button

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package 
com.example.timebutton;
 
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.view.View;
import android.widget.Button;
 
/**
 * 时间控制的Button
 * 
 * @author xue
 * @time 2014-02-26 10:53:55
 * 
 */
public 
class TimeButton extends 
Button {
    private 
int time, tempTime;
    private 
String subText;
 
    public 
final int TIME_START = 0x10;
    public 
final int TIME_REDUCE = 0x11;
    public 
final int TIME_END = 0x12;
 
    public 
final String GONING_TAG = "TAG_GONGING";
    public 
final String END_TAG = "TAG_END";
 
    public 
TimeButton(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
    }
 
    public 
TimeButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        // TODO Auto-generated constructor stub
    }
 
    public 
TimeButton(Context context, AttributeSet attrs, int 
defStyle) {
        super(context, attrs, defStyle);
        // TODO Auto-generated constructor stub
    }
 
    private 
Handler handler = new 
Handler() {
 
        @Override
        public 
void handleMessage(Message msg) {
            // TODO Auto-generated method stub
            switch 
(msg.what) {
            case 
TIME_START:
                setTag(GONING_TAG);
                break;
            case 
TIME_REDUCE:
                setText("(" 
+ tempTime-- + ")" 
+ "秒后重新" + subText);
                break;
            case 
TIME_END:
                setTag(END_TAG);
                setText(subText);
                tempTime = time;
                break;
            default:
                break;
            }
        }
 
    };
 
    /**
     * 继承OnclickListener,用于设置Onclick监听器时向上转型
     * 
     * @author xue
     * 
     */
    public 
class TimeOnclickListener implements 
OnClickListener {
 
        // 用于判断是否在倒计时完成后执行一系列动作
        public 
boolean END_TAG = true;
 
        @Override
        public 
void onClick(View v) {
            // TODO Auto-generated method stub
            if 
(v.getTag() != null 
&& v.getTag().equals(GONING_TAG)) {
                END_TAG = false;
                return;
            }
            setText(tempTime + "");
            new 
Thread(new 
Runnable() {
 
                @Override
                public 
void run() {
                    // TODO Auto-generated method stub
                    // 开始倒计时
                    handler.sendEmptyMessage(TIME_START);
                    while 
(tempTime >= 0) {
                        // 正在倒计时
                        handler.sendEmptyMessage(TIME_REDUCE);
                        try 
{
                            Thread.sleep(1000);
                        } catch 
(InterruptedException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    }
                    // 倒计时结束
                    END_TAG = true;
                    handler.sendEmptyMessage(TIME_END);
                }
            }).start();
 
        }
 
    }
 
    /**
     * 设置倒计时时间
     * 
     * @param time
     */
    public 
void setTime(int 
time) {
        this.time = time;
        this.tempTime = time;
    }
 
    /**
     * 设置倒计时过程中的文字
     * 
     * @param subText
     */
    public 
void setSubText(String subText) {
        this.subText = subText;
    }
}

　　2.MainActivity

package 
com.example.timebutton;
 
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Toast;
 
/**
 * 主界面
 * 
 * @author xue
 * @time 2014-02-26 15:34:51
 * 
 */
public 
class MainActivity extends 
Activity {
 
    private 
TimeButton time;
 
    @Override
    protected 
void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        initView();
        setListener();
    }
 
    @Override
    public 
boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return 
true;
    }
 
    private 
void initView() {
        time = (TimeButton) findViewById(R.id.timebutton);
        time.setTime(60); // 设置倒计时时间
        time.setSubText("发送");
    }
 
    private 
void setListener() {
        time.setOnClickListener(time.new 
TimeOnclickListener() {
 
            @Override
            public 
void onClick(View v) {
                // TODO Auto-generated method stub
                super.onClick(v);
                if 
(this.END_TAG) // 如果不加判断，则每次点击Button都会执行下面这句话
                    Toast.makeText(MainActivity.this, "已发送！", 1000).show();
            }
 
        });
    }
}