Question

嘿，我的代码崩溃了。我试图在一段时间内扩展Toast，并在onPause运行时“杀死”Toast。我究竟做错了什么？当我在timer.cancel()

中添加onPause时发生崩溃

private boolean checkInternetConnection() {



    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    // test for connection
    if (cm.getActiveNetworkInfo() != null
            && cm.getActiveNetworkInfo().isAvailable()
            && cm.getActiveNetworkInfo().isConnected()) {

        splashTread.start();
        return true;
    } else {



        timer = new CountDownTimer(20000, 1000)
        {

            public void onTick(long millisUntilFinished) {toast.show();}
            public void onFinish() {toast.cancel();}

        }.start();



        return false;
    }
}



@Override
protected void onDestroy() {
    // TODO Auto-generated method stub
    super.onDestroy();
    finish();
timer.cancel():
}



@Override
protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
    finish();
    timer.cancel():



}

}

Answer 1

这是你能做的。应用程序崩溃，因为timer = null。计时器从未运行或设置过。

在onDestroy和onPause中添加：

if (timer != null) {
        timer.cancel();

    }

Android扩展Toast导致崩溃

1 个答案: