泄露了窗口com.android.internal.policy.impl.PhoneWindow $ DecorView {b5596468 VE .... R ..... ID 0,0-456,144}原來在這裏添加

我得到了泄漏錯誤，當我試圖從當前活動開始新活動，並且我認爲在開始新活動之前，當前活動已正確關閉，那麼您是否可以幫助指定我的代碼中錯誤的位置？

package com.example.mediastore; 

import java.util.ArrayList; 
import java.util.List; 

import org.apache.http.NameValuePair; 
import org.apache.http.message.BasicNameValuePair; 
import org.json.JSONException; 
import org.json.JSONObject; 

import com.example.mediastore.JSONParser; 
import android.annotation.SuppressLint; 
import android.app.Activity; 
import android.app.ProgressDialog; 
import android.content.Intent; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.text.InputFilter.LengthFilter; 
import android.util.Log; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.view.Window; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Toast; 

public class LoginActivity extends Activity { 

    Button login; 
    EditText inputusername; 
    EditText inputpassword; 
    private static String url_users = "http://10.0.2.2/mediastore/android/usersLogin.php"; 
    private ProgressDialog pDialog; 
    JSONParser jsonParser = new JSONParser(); 
    private static final String TAG_SUCCESS = "success"; 
    boolean startActivity; 

    @Override 
    public void finish() 
    { 
     if (pDialog != null && pDialog.isShowing()) 
     { 
      pDialog.dismiss(); 
     } 
    } 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 

     this.requestWindowFeature(Window.FEATURE_NO_TITLE); 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_login); 

     login = (Button) findViewById(R.id.loginbtn); 
     inputusername = (EditText) findViewById(R.id.username); 
     inputpassword = (EditText) findViewById(R.id.password); 



     login.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 

       if(v == login) { 
        login.setBackgroundDrawable(getResources().getDrawable(R.drawable.button2)); 
       } 
       String u = inputusername.getText().toString(); 
       String p = inputpassword.getText().toString(); 

       if(u.equals("")||p.equals("")) 
        Toast.makeText(getApplicationContext(), "Please fill these two fields", Toast.LENGTH_SHORT).show(); 
       else{ 
        new userLogin().execute(); 
       } 
      } 
     }); 
    } 

    class userLogin extends AsyncTask<String, String, String> { 

     /** 
     * Before starting background thread Show Progress Dialog 
     * */ 
     @Override 
     protected void onPreExecute() { 
      super.onPreExecute(); 
      pDialog = new ProgressDialog(LoginActivity.this); 
      pDialog.setMessage("Logging user.."); 
      pDialog.setIndeterminate(false); 
      pDialog.setCancelable(true); 
      pDialog.show(); 
     } 


     /** 
     * Creating product 
     * */ 
     @SuppressLint("ShowToast") 
     protected String doInBackground(String... args) { 
      String username = inputusername.getText().toString(); 
      String password = inputpassword.getText().toString(); 

      // Building Parameters 
      List<NameValuePair> params = new ArrayList<NameValuePair>(); 
      params.add(new BasicNameValuePair("username", username)); 
      params.add(new BasicNameValuePair("password", password)); 

      // getting JSON Object 
      // Note that create product url accepts POST method 
      JSONObject json = jsonParser.makeHttpRequest(url_users, 
        "POST", params); 

      // check log cat for response 
      Log.d("Login Response", json.toString()); 

      // check for success tag 
      try { 
       int success = json.getInt(TAG_SUCCESS); 

       if (success == 1) { 
        // successfully created product 
        startActivity = true; 

        // closing this screen 
        finish(); 
       } else { 
        // failed to create product 
       } 
      } catch (JSONException e) { 
       e.printStackTrace(); 
      } 

      return null; 
     } 

     /** 
     * After completing background task Dismiss the progress dialog 
     * **/ 
     protected void onPostExecute(String file_url) { 
      // dismiss the dialog once done 

      pDialog.dismiss(); 

      if(startActivity){ 
       Intent i = new Intent(getApplicationContext(), UserViewActivity.class); 
       startActivity(i); 
      } 

     } 
    } 

}

這是日誌貓：

10-04 10:50:27.129: E/WindowManager(1629): Activity com.example.mediastore.LoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{b5596468 V.E..... R.....ID 0,0-456,144} that was originally added here 
10-04 10:50:27.129: E/WindowManager(1629): android.view.WindowLeaked: Activity com.example.mediastore.LoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{b5596468 V.E..... R.....ID 0,0-456,144} that was originally added here 
10-04 10:50:27.129: E/WindowManager(1629): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:354) 
10-04 10:50:27.129: E/WindowManager(1629): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:216) 
10-04 10:50:27.129: E/WindowManager(1629): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) 
10-04 10:50:27.129: E/WindowManager(1629): at android.app.Dialog.show(Dialog.java:281) 
10-04 10:50:27.129: E/WindowManager(1629): at com.example.mediastore.LoginActivity$userLogin.onPreExecute(LoginActivity.java:93) 
10-04 10:50:27.129: E/WindowManager(1629): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586) 
10-04 10:50:27.129: E/WindowManager(1629): at android.os.AsyncTask.execute(AsyncTask.java:534) 
10-04 10:50:27.129: E/WindowManager(1629): at com.example.mediastore.LoginActivity$1.onClick(LoginActivity.java:75) 
10-04 10:50:27.129: E/WindowManager(1629): at android.view.View.performClick(View.java:4202) 
10-04 10:50:27.129: E/WindowManager(1629): at android.view.View$PerformClick.run(View.java:17340) 
10-04 10:50:27.129: E/WindowManager(1629): at android.os.Handler.handleCallback(Handler.java:725) 
10-04 10:50:27.129: E/WindowManager(1629): at android.os.Handler.dispatchMessage(Handler.java:92) 
10-04 10:50:27.129: E/WindowManager(1629): at android.os.Looper.loop(Looper.java:137) 
10-04 10:50:27.129: E/WindowManager(1629): at android.app.ActivityThread.main(ActivityThread.java:5039) 
10-04 10:50:27.129: E/WindowManager(1629): at java.lang.reflect.Method.invokeNative(Native Method) 
10-04 10:50:27.129: E/WindowManager(1629): at java.lang.reflect.Method.invoke(Method.java:511) 
10-04 10:50:27.129: E/WindowManager(1629): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
10-04 10:50:27.129: E/WindowManager(1629): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
10-04 10:50:27.129: E/WindowManager(1629): at dalvik.system.NativeStart.main(Native Method)

新的錯誤：

10-04 14:02:14.414: E/JSON Parser(1909): Error parsing data org.json.JSONException: Value <br of type java.lang.String cannot be converted to JSONObject 
10-04 14:02:14.434: W/dalvikvm(1909): threadid=13: thread exiting with uncaught exception (group=0xb4d01908) 
10-04 14:02:14.494: E/AndroidRuntime(1909): FATAL EXCEPTION: AsyncTask #3 
10-04 14:02:14.494: E/AndroidRuntime(1909): java.lang.RuntimeException: An error occured while executing doInBackground() 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at android.os.AsyncTask$3.done(AsyncTask.java:299) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at java.util.concurrent.FutureTask.setException(FutureTask.java:219) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at java.util.concurrent.FutureTask.run(FutureTask.java:239) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at java.lang.Thread.run(Thread.java:856) 
10-04 14:02:14.494: E/AndroidRuntime(1909): Caused by: java.lang.NullPointerException 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at com.example.mediastore.LoginActivity$userLogin.doInBackground(LoginActivity.java:123) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at com.example.mediastore.LoginActivity$userLogin.doInBackground(LoginActivity.java:1) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at android.os.AsyncTask$2.call(AsyncTask.java:287) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  at java.util.concurrent.FutureTask.run(FutureTask.java:234) 
10-04 14:02:14.494: E/AndroidRuntime(1909):  ... 4 more 
10-04 14:02:19.734: E/WindowManager(1909): Activity com.example.mediastore.LoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{b55038e8 V.E..... R.....ID 0,0-456,144} that was originally added here 
10-04 14:02:19.734: E/WindowManager(1909): android.view.WindowLeaked: Activity com.example.mediastore.LoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{b55038e8 V.E..... R.....ID 0,0-456,144} that was originally added here 
10-04 14:02:19.734: E/WindowManager(1909): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:354) 
10-04 14:02:19.734: E/WindowManager(1909): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:216) 
10-04 14:02:19.734: E/WindowManager(1909): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) 
10-04 14:02:19.734: E/WindowManager(1909): at android.app.Dialog.show(Dialog.java:281) 
10-04 14:02:19.734: E/WindowManager(1909): at com.example.mediastore.LoginActivity$userLogin$1.run(LoginActivity.java:99) 
10-04 14:02:19.734: E/WindowManager(1909): at android.os.Handler.handleCallback(Handler.java:725) 
10-04 14:02:19.734: E/WindowManager(1909): at android.os.Handler.dispatchMessage(Handler.java:92) 
10-04 14:02:19.734: E/WindowManager(1909): at android.os.Looper.loop(Looper.java:137) 
10-04 14:02:19.734: E/WindowManager(1909): at android.app.ActivityThread.main(ActivityThread.java:5039) 
10-04 14:02:19.734: E/WindowManager(1909): at java.lang.reflect.Method.invokeNative(Native Method) 
10-04 14:02:19.734: E/WindowManager(1909): at java.lang.reflect.Method.invoke(Method.java:511) 
10-04 14:02:19.734: E/WindowManager(1909): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
10-04 14:02:19.734: E/WindowManager(1909): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
10-04 14:02:19.734: E/WindowManager(1909): at dalvik.system.NativeStart.main(Native Method)

來源

2013-10-04 Mohammad

嘗試把完成（）只startActivity（I）之後;在你的onPostExecute方法中。

我曾經經歷過調用finish還刪除了全局聲明的變量，其他很多事情都發生在後臺。

編輯1.

同時刪除super.onPreExecute（）;並把這個代碼onPreExecute：

Handler h= new Handler(); 
    h.post(new Runnable() { 
      @Override 
      public void run() { 
     pDialog = new ProgressDialog(LoginActivity.this); 
     pDialog.setMessage("Logging user.."); 
     pDialog.setIndeterminate(false); 
     pDialog.setCancelable(true); 
     pDialog.show(); 
     } 
    });

有可能是一個錯誤或兩個拼寫，所以不要複製/粘貼，在Eclipse而鍵入你的自我。

來源

2013-10-04 11:39:49 JanBo

同樣的問題:( – Mohammad

嘗試評論你的onPreExecute方法中的整個代碼，以便它什麼都不做（包括super.onPreExecute，刪除它完全不必要的）...它應該運行正常嗎？如果它運行正常，那麼你應該使用Handler來發布你的對話框 – JanBo

編輯答案 – JanBo

泄露了窗口com.android.internal.policy.impl.PhoneWindow $ DecorView {b5596468 VE .... R ..... ID 0,0-456,144}原來在這裏添加

回答

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