Question

我正在使用Smack构建应用程序。在Eclipse模拟器中运行app后，apk安装成功，但似乎没有响应。点击它后，我得到了警告“不幸的是，应用程序停止工作”。请帮我解决一下。 Logcat：

01-13 05:55:17.117: E/AndroidRuntime(1067): FATAL EXCEPTION: main
01-13 05:55:17.117: E/AndroidRuntime(1067): Process: com.demo.xmppchat, PID: 1067
01-13 05:55:17.117: E/AndroidRuntime(1067): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.demo.xmppchat/com.demo.xmppchat.CustomizedListView}: java.lang.NullPointerException
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2176)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.app.ActivityThread.access$700(ActivityThread.java:135)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.os.Handler.dispatchMessage(Handler.java:102)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.os.Looper.loop(Looper.java:137)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.app.ActivityThread.main(ActivityThread.java:4998)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at java.lang.reflect.Method.invokeNative(Native Method)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at java.lang.reflect.Method.invoke(Method.java:515)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at dalvik.system.NativeStart.main(Native Method)
01-13 05:55:17.117: E/AndroidRuntime(1067): Caused by: java.lang.NullPointerException
01-13 05:55:17.117: E/AndroidRuntime(1067):     at com.demo.xmppchat.CustomizedListView.onCreate(CustomizedListView.java:80)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.app.Activity.performCreate(Activity.java:5243)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
01-13 05:55:17.117: E/AndroidRuntime(1067):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2140)
01-13 05:55:17.117: E/AndroidRuntime(1067):     ... 11 more

Answer 1

打开项目的属性 - ＆gt; Java构建路径 - ＆gt;取消选中＆＃34; Android私人图书馆＆＃34;和＃34; Android Dependencies＆＃34;。

Android错误Dx麻烦写输出：已经准备好了

1 个答案: