运行时异常Android
运行时异常Android,android,Android,我在我的应用程序中遇到了一个奇怪的错误，我在下面的代码中遇到了NULL异常，有时（是的，有时听起来很奇怪！！！） 请看一看 String appId = preferences.getString(ProjectConstants.IMEI_NO, null); if (appId == null) { // Here i am getting exception: TelephonyManager manager = (TelephonyManager)
我在我的应用程序中遇到了一个奇怪的错误，我在下面的代码中遇到了NULL异常，有时（是的，有时听起来很奇怪！！！） 请看一看
String appId = preferences.getString(ProjectConstants.IMEI_NO, null);
if (appId == null) {
// Here i am getting exception:
TelephonyManager manager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
appId = manager.getDeviceId();
preferences.edit().putString(ProjectConstants.IMEI_NO, appId);
}
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:278)
at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
at java.util.concurrent.FutureTask.run(FutureTask.java:137)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
at java.lang.Thread.run(Thread.java:856) Caused by: java.lang.NullPointerException
at com.homeshop18.service.GSONfunctions.getGSONfromURL(GSONfunctions.java:115)
at com.homeshop18.ui.myorder.MyOrdersFragment$DownloadMyOrders.doInBackground(MyOrdersFragment.java:92)
at com.homeshop18.ui.myorder.MyOrdersFragment$DownloadMyOrders.doInBackground(MyOrdersFragment.java:1)
at android.os.AsyncTask$2.call(AsyncTask.java:264)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) ... 5 more
如有任何帮助，将不胜感激D您的logcat日志清楚地显示 在 com.homeshop18.service.GSONfunctions.getGSONfromURL（GSONfunctions.java:115） 请在第115行检查，有空的东西，您正在尝试访问它的属性
更新，如果您的第一个代码段来自
GSONfunctionscontext