Android的活动有一个致命的例外：AsyncTask＃1，并泄露窗口com.android.internal.policy.impl.PhoneWindow $ DecorView

Question

我是新的android编程，我想在ListView安排中获取解析，我发现完美的指南，但我真的不能在我的代码上实现它。 我已经浏览了很多2天，我放弃了。

这里的错误

E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #1 
Process: com.example.osbert.buttons, PID: 2732 
java.lang.RuntimeException: An error occured while executing doInBackground() 
     at android.os.AsyncTask$3.done(AsyncTask.java:300) 
     at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355) 
     at java.util.concurrent.FutureTask.setException(FutureTask.java:222) 
     at java.util.concurrent.FutureTask.run(FutureTask.java:242) 
     at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) 
     at java.lang.Thread.run(Thread.java:818) 
Caused by: java.lang.RuntimeException: You must call Parse.initialize(context, oauthKey, oauthSecret) before using the Parse library. 
     at com.parse.ParseUser.checkApplicationContext(ParseUser.java:1426) 
     at com.parse.ParseUser.getCurrentUserAsync(ParseUser.java:1048) 
     at com.parse.ParseUser.access$900(ParseUser.java:27) 
     at com.parse.ParseUser$9.then(ParseUser.java:1041) 
     at com.parse.ParseUser$9.then(ParseUser.java:1038) 
     at com.parse.TaskQueue.enqueue(TaskQueue.java:61) 
     at com.parse.ParseUser.getCurrentUserAsync(ParseUser.java:1038) 
     at com.parse.ParseUser.getCurrentUserAsync(ParseUser.java:1001) 
     at com.parse.ParseQuery.getUserAsync(ParseQuery.java:352) 
     at com.parse.ParseQuery.access$1600(ParseQuery.java:78) 
     at com.parse.ParseQuery$15.call(ParseQuery.java:1000) 
     at com.parse.ParseQuery$15.call(ParseQuery.java:997) 
     at com.parse.ParseQuery.doWithRunningCheck(ParseQuery.java:936) 
     at com.parse.ParseQuery.findInBackground(ParseQuery.java:997) 
     at com.parse.ParseQuery.find(ParseQuery.java:588) 
     at com.example.osbert.buttons.RestaurantList$RemoteDataTask.doInBackground(RestaurantList.java:60) 
     at com.example.osbert.buttons.RestaurantList$RemoteDataTask.doInBackground(RestaurantList.java:34) 
     at android.os.AsyncTask$2.call(AsyncTask.java:288) 
     at java.util.concurrent.FutureTask.run(FutureTask.java:237) 

E/WindowManager﹕ android.view.WindowLeaked: Activity com.example.osbert.buttons.RestaurantList has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{27bb5583 V.E..... R......D 0,0-729,322} that was originally added here 
     at android.view.ViewRootImpl.<init>(ViewRootImpl.java:363) 
     at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:261) 
     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) 
     at android.app.Dialog.show(Dialog.java:298) 
     at com.example.osbert.buttons.RestaurantList$RemoteDataTask.onPreExecute(RestaurantList.java:46) 
     at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:587) 
     at android.os.AsyncTask.execute(AsyncTask.java:535) 
     at com.example.osbert.buttons.RestaurantList.onCreate(RestaurantList.java:30) 
     at android.app.Activity.performCreate(Activity.java:5937) 
     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) 
     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251) 
     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) 
     at android.app.ActivityThread.access$800(ActivityThread.java:144) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) 
     at android.os.Handler.dispatchMessage(Handler.java:102) 
     at android.os.Looper.loop(Looper.java:135) 
     at android.app.ActivityThread.main(ActivityThread.java:5221) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:372) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 

这里是我的代码

package com.example.osbert.buttons; 
import java.util.ArrayList; 
import java.util.List; 
import android.app.Activity; 
import android.app.ProgressDialog; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.util.Log; 
import android.widget.ListView; 

import com.parse.ParseException; 
import com.parse.ParseFile; 
import com.parse.ParseObject; 
import com.parse.ParseQuery; 

public class RestaurantList extends Activity { 
// Declare Variables 
ListView listview; 
List<ParseObject> ob; 
ProgressDialog mProgressDialog; 
ListViewAdapter adapter; 
private List<WorldPopulation> worldpopulationlist = null; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    // Get the view from listview_main.xml 
    setContentView(R.layout.listview_main); 
    // Execute RemoteDataTask AsyncTask 
    new RemoteDataTask().execute(); 
} 

// RemoteDataTask AsyncTask 
private class RemoteDataTask extends AsyncTask<Void, Void, Void> { 
    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     // Create a progressdialog 
     mProgressDialog = new ProgressDialog(RestaurantList.this); 
     // Set progressdialog title 
     mProgressDialog.setTitle("Loading"); 
     // Set progressdialog message 
     mProgressDialog.setMessage("Loading..."); 
     mProgressDialog.setIndeterminate(false); 
     // Show progressdialog 
     mProgressDialog.show(); 
    } 

    @Override 
    protected Void doInBackground(Void... params) { 
     // Create the array 
     worldpopulationlist = new ArrayList<WorldPopulation>(); 
     try { 
      // Locate the class table named "Country" in Parse.com 
      ParseQuery<ParseObject> query = new ParseQuery<ParseObject>(
        "Country"); 
      // Locate the column named "ranknum" in Parse.com and order list 
      // by ascending 
      query.orderByAscending("ranknum"); 
      ob = query.find(); 
      for (ParseObject country : ob) { 
       // Locate images in flag column 
       ParseFile image = (ParseFile) country.get("flag"); 

       WorldPopulation map = new WorldPopulation(); 
       map.setRank((String) country.get("rank")); 
       map.setCountry((String) country.get("country")); 
       map.setPopulation((String) country.get("population")); 
       map.setFlag(image.getUrl()); 
       worldpopulationlist.add(map); 
      } 
     } catch (ParseException e) { 
      Log.e("Error", e.getMessage()); 
      e.printStackTrace(); 
     } 
     return null; 
    } 

    @Override 
    protected void onPostExecute(Void result) { 
     // Locate the listview in listview_main.xml 
     listview = (ListView) findViewById(R.id.listview); 
     // Pass the results into ListViewAdapter.java 
     adapter = new ListViewAdapter(RestaurantList.this, 
       worldpopulationlist); 
     // Binds the Adapter to the ListView 
     listview.setAdapter(adapter); 
     // Close the progressdialog 
     mProgressDialog.dismiss(); 
     finish(); 

    } 
} 

} 

请帮助：（（

在此先感谢

Answer 1

u个错误日志说，解决方案.....

产生的原因：了java.lang.RuntimeException：必须使用解析库之前调用Parse.initialize（背景下，oauthKey，oauthSecret）。 at com.parse.ParseUser.checkApplicationContext（ParseUser.java:1426）

Answer 2

你甚至试过解决这个问题吗？

引起：java.lang.RuntimeException：在使用Parse库之前，您必须调用Parse.initialize（context，oauthKey，oauthSecret）吗？

它是事故的原因。

另外你为什么要打完（）我onPostExecute ?!它会关闭你的活动......我想你希望在列表视图中看到结果？