如何解决致命异常java.lang.RuntimeException:执行doInBackground()时出错

Question

我正在开发聊天相关的类似应用程序，我正在使用后台同步类，有时会出现强制关闭的情况，我正在使用.net webservices后台，我正在接收消息和图像，后台下载过程更新到ui

错误是：

05-17 05:24:17.925: ERROR/AndroidRuntime(1618): FATAL EXCEPTION: AsyncTask #1
05-17 05:24:17.925: ERROR/AndroidRuntime(1618): java.lang.RuntimeException: An error occured while executing doInBackground()
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at android.os.AsyncTask$3.done(AsyncTask.java:200)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask.run(FutureTask.java:137)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.lang.Thread.run(Thread.java:1096)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618): Caused by: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:257)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.ArrayList.get(ArrayList.java:311)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at com.fitzgeraldsoftware.shout.presentationLayer.Shout$LatestMessage.doInBackground(Shout.java:1923)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at android.os.AsyncTask$2.call(AsyncTask.java:185)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
05-17 05:24:17.925: ERROR/AndroidRuntime(1618):     ... 4 more
05-17 05:24:17.956: WARN/ActivityManager(1105):   Force finishing activity com.fitzgeraldsoftware.shout.presentationLayer/.Shout
05-17 05:24:18.097: WARN/IInputConnectionWrapper(1618): showStatusIcon on inactive InputConnection

Answer 1

你抛出了ArrayIndexOutOfBoundsException。检查1923年在Shout.java中执行的代码以进行数组访问。如果您尝试按大于数组大小(1)的索引读取元素，则会抛出异常。例如，如果满足以下条件，则抛出该函数：

String [] strings = new String[0];
strings[0];// exception thrown!

Answer 2

我面临着同样的问题，我几乎没有半天的时间，最终解决方案是关闭你的eclipse和PC/笔记本电脑，重新启动它并运行应用程序。一切运行得很好。

Answer 3

尝试Project -> Clean，然后运行....我用这种方法解决了它......