安卓自定义定时器

来源：互联网发布：淘宝安装工接单平台app 编辑：程序博客网时间：2024/06/01 08:50

主要包括三个类：
超时提供者：TimerProvider
超时监听者：TimerListener
客户端调用：ConcreatListener

public class ConcreatListener implements TimerListener{    public void onTimeout(TimerProvider t){}}

public interface TimerListener{    /**     * 超时时调用     * @param t      * @see TimerProvider     */    public void onTimeout(TimerProvider t);}

public class TimerProvider{    TimerListener listener;    long time;    String label;    boolean active;    InnerTimerST innerTimer;    void init(long t_msec, String t_label, TimerListener t_listener) {        listener = t_listener;        time = t_msec;        label = t_label;        active = false;    }    public TimerProvider(long t_msec, String t_label, TimerListener t_listener) {        init(t_msec, t_label, t_listener);    }    public String getLabel() {        return label;    }    public long getTime() {        return time;    }    public void halt() {        active = false;        listener = null;        if (innerTimer != null) {            innerTimer.cancel();        }    }    /** Starts the timer */    public void start() {        active = true;        innerTimer = new InnerTimerST(time, this);    }    /** When the Timeout fires */    public void onInnerTimeout() {        if (active && listener != null)            listener.onTimeout(this);        listener = null;        active = false;    }    public boolean isActive() {        return active;    }}class InnerTimerST extends java.util.TimerTask{    static java.util.Timer single_timer = new java.util.Timer(true);    TimerProvider listener;    public InnerTimerST(long timeout, TimerProvider listener) {        this.listener = listener;        single_timer.schedule(this, timeout);    }    public void run() {        if (listener != null) {            listener.onInnerTimeout();            listener = null;        }    }}

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