JSON解析問題沒有解決

我logcat的錯誤是：JSON解析問題沒有解決

12-31 14:45:14.920: E/WindowManager(3420): Activity com.example.visit.record.My_Task has leaked window [email protected] that was originally added here 
    12-31 14:45:14.920: E/WindowManager(3420): android.view.WindowLeaked: Activity com.example.visit.record.My_Task has leaked window [email protected] that was originally added here 
    12-31 14:45:14.920: E/WindowManager(3420): at android.view.ViewRoot.<init>(ViewRoot.java:277) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.view.Window$LocalWindowManager.addView(Window.java:433) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.app.Dialog.show(Dialog.java:288) 
    12-31 14:45:14.920: E/WindowManager(3420): at com.example.visit.record.My_Task$GetTaskDetails.onPreExecute(My_Task.java:137) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.os.AsyncTask.execute(AsyncTask.java:391) 
    12-31 14:45:14.920: E/WindowManager(3420): at com.example.visit.record.My_Task.onCreate(My_Task.java:105) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1785) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1842) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.app.ActivityThread.access$1500(ActivityThread.java:132) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.os.Handler.dispatchMessage(Handler.java:99) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.os.Looper.loop(Looper.java:143) 
    12-31 14:45:14.920: E/WindowManager(3420): at android.app.ActivityThread.main(ActivityThread.java:4268) 
    12-31 14:45:14.920: E/WindowManager(3420): at java.lang.reflect.Method.invokeNative(Native Method) 
    12-31 14:45:14.920: E/WindowManager(3420): at java.lang.reflect.Method.invoke(Method.java:507) 
    12-31 14:45:14.920: E/WindowManager(3420): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 
    12-31 14:45:14.920: E/WindowManager(3420): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 
    12-31 14:45:14.920: E/WindowManager(3420): at dalvik.system.NativeStart.main(Native Method) 
12-31 14:54:22.360: E/AndroidRuntime(4423):  at com.example.visit.record.My_Task$GetTaskDetails.doInBackground(My_Task.java:163) 
12-31 15:10:51.470: W/System.err(6457):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 
12-31 15:10:51.470: W/System.err(6457):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 
12-31 15:10:51.470: W/System.err(6457):  at java.lang.Thread.run(Thread.java:1027) 
12-31 15:10:51.480: E/Buffer Error(6457): Error converting result java.lang.NullPointerException 
12-31 15:10:51.480: E/JSON Parser(6457): Error parsing data org.json.JSONException: End of input at character 0 of 
12-31 15:10:51.480: W/dalvikvm(6457): threadid=9: thread exiting with uncaught exception (group=0x400205a0) 
12-31 15:10:51.490: E/AndroidRuntime(6457): FATAL EXCEPTION: AsyncTask #1 
12-31 15:10:51.490: E/AndroidRuntime(6457): java.lang.RuntimeException: An error occured while executing doInBackground() 
12-31 15:10:51.490: E/AndroidRuntime(6457):  at android.os.AsyncTask$3.done(AsyncTask.java:200) 
12-31 15:10:51.490: E/AndroidRuntime(6457):  at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:274) 
12-31 15:10:51.490: E/AndroidRuntime(6457):  at java.util.concurrent.FutureTask.setException(FutureTask.java:125) 
12-31 15:10:51.490: E/AndroidRuntime(6457):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:308) 
12-31 15:10:51.490: E/AndroidRuntime(6457):  at java.util.concurrent.FutureTask.run(FutureTask.java:138) 
12-31 15:10:51.490: E/AndroidRuntime(6457):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)

我對dialog.show遇到錯誤（）;在getTaskDetail類中的Preexecute對話框中輸入。並在Log.d上顯示錯誤（「Single Task Details」，json.toString（））;，並在新GetTaskDetails（）。execute（）;

請引導爲什麼它不能從我的php應用程序數據庫中獲取值。並通過生成「強制關閉」錯誤而意外停止。請引導我出錯的地方。我想從MySql獲取數據到Android使用JSONParsing

來源

2012-12-31 Android

它沒有問題的JSON它接縫，你嘗試從後臺線程與UI線程進行交互。看一看： Activity has leaked window [email protected] that was originally added here

來源

2012-12-31 10:16:57 GreenRover

我想在網址你的問題在模擬器改變URL運行

這

private static final String url_read_mytask = "http://10.0.2.2/evisiting_records/read_mytask.php";

和

private static final String url_update_mytask = "http://10.0.2.2/evisiting_records/update_mytask.php"

來源

2012-12-31 10:56:50

我在HTC上運行它。但沒有獲取數據 – Android

，但嘗試使用此代碼。 –

我試試:)但沒有獲取數據:)生成「強制關閉」錯誤，請指導.. – Android

，而我認爲這是一個問題與您的JSON導致泄漏窗口：

Error parsing data org.json.JSONException: End of input at character 0 of

您可以發佈JSON（通過在瀏覽器或CURL中打開URL並複製內容）。 JSON似乎無效。

來源

2012-12-31 14:34:26 McIntosh

JSON解析問題沒有解決

回答

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