致命异常：定时器0显示java.lang.NullPointerException [英] FATAL EXCEPTION: Timer-0 java.lang.NullPointerException

问题描述

我有一个计时器在OnCreate（），如：

I'm having a timer in the oncreate() like:

final Timer timer1 = new Timer();
timer1.schedule(new TimerTask() {
    public void run() {
        sendSMS();
    }
}, 20000);

该梅索德sendSMS（）是这样的：

The methode sendSMS() is like:

private void sendSMS(){
    float test2;
    test2 = reallocation.getAccuracy(); //-> This is the line where logcat says.... NullPointerException
    ....
}

在logcat中说：

The logcat says:

05-30 18:32:26.962: W/dalvikvm(741): threadid=9: thread exiting with uncaught exception (group=0x4001d5a0)
05-30 18:32:26.972: E/AndroidRuntime(741): FATAL EXCEPTION: Timer-0
05-30 18:32:26.972: E/AndroidRuntime(741): java.lang.NullPointerException
05-30 18:32:26.972: E/AndroidRuntime(741):  at com.eljoom.df.ActionGPS.sendSMS(ActionGPS.java:280)

搜索网，我相信我需要计时器的处理程序后，嗯......但我不知道如何实现它。

Well after searching the net I believe I need a handler for the timer... but I have no clue how to implement it.

是否有人可以把我在正确的轨道上？

Does anybody can put me on the right track?!

推荐答案

重新分配未初始化，所以它取空值，默认的对象。

reallocation is uninitialized, so its taking the null value, the default one for object.

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