Windows泄漏错误

-1

我有这个登录活动，其中包含执行解析方法（Post）的异步任务类一切正常，我的数据已发布，但当用户输入一个错误的电子邮件和密码，我只需要敬酒他Windows泄漏错误

public class ActivityLogin extends Activity 
{ 
// Progress Dialog 
    private ProgressDialog pDialog; 
    private static String login_tag = "login"; 
    PostParser jsonParser = new PostParser(); 
    // UI references. 
    private EditText email; 
    private EditText password; 
    static String Email=""; 
    static String Password=""; 
    // url to create new product 
    private static String login_URL = "jhdakjhdakj"; 
    // JSON Node names 
    private static final String TAG_SUCCESS = "success"; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) 
    { 

     super.onCreate(savedInstanceState); 
     //this.requestWindowFeature(Window.FEATURE_NO_TITLE); 

     setContentView(R.layout.activity_login); 

     email=(EditText)findViewById(R.id.email); 
     password=(EditText)findViewById(R.id.password1); 

     Button login=(Button)findViewById(R.id.sign_in_button); 
     login.setOnClickListener(new View.OnClickListener() 
     { 

      @Override 
      public void onClick(View v) 
      { 
       // TODO Auto-generated method stub 
       Email=email.getText().toString(); 
       Password=password.getText().toString(); 
       (new LoginInTask()).execute(); 

      } 
     }); 


    } 
    class LoginInTask extends AsyncTask<String, String, String> { 

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

     /** 
     * Creating product 
     * */ 
     protected String doInBackground(String... args) 
    { 
     String Email = email.getText().toString(); 
     String Password = password.getText().toString(); 
     // Building Parameters 
     List<NameValuePair> params = new ArrayList<NameValuePair>(); 
     params.add(new BasicNameValuePair("tag", login_tag)); 
     params.add(new BasicNameValuePair("Email", Email)); 
     params.add(new BasicNameValuePair("Password", Password)); 

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


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

     // check for success tag 

      int success=0; 
      try 
      { 
       success = json.getInt(TAG_SUCCESS); 
      } catch (JSONException e) 
      { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } 


     return null; 
    } 
    /** 
    * After completing background task Dismiss the progress dialog 
    * **/ 
    protected void onPostExecute(int success) 
    { 
     if (success==1) 
     { 
      // successfully created product 
      Intent i = new Intent(getApplicationContext(), ActivitySignUp.class); 
      startActivity(i); 

      // closing this screen 
      pDialog.dismiss(); 
      finish(); 
     } 
     else 
     {     

       Toast.makeText(getApplicationContext(), "Failed", Toast.LENGTH_SHORT).show(); 

     } 
     pDialog.dismiss(); 
     finish(); 
    } 

} 
}

你的帮助，将不胜感激：所以我的代码看起来像这样他的电子邮件地址和密码是错误的。谢谢

，这里是我的logcat

11-05 16:16:46.536: E/AndroidRuntime(5807): FATAL EXCEPTION: AsyncTask #1 
11-05 16:16:46.536: E/AndroidRuntime(5807): java.lang.RuntimeException: An error occured while executing doInBackground() 
11-05 16:16:46.536: E/AndroidRuntime(5807): at android.os.AsyncTask$3.done(AsyncTask.java:299) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at java.util.concurrent.FutureTask.setException(FutureTask.java:219) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at java.util.concurrent.FutureTask.run(FutureTask.java:239) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at java.lang.Thread.run(Thread.java:849) 
11-05 16:16:46.536: E/AndroidRuntime(5807): Caused by: java.lang.NullPointerException 
11-05 16:16:46.536: E/AndroidRuntime(5807): at com.asap.ActivityLogin$LoginInTask.doInBackground(ActivityLogin.java:108) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at com.asap.ActivityLogin$LoginInTask.doInBackground(ActivityLogin.java:1) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at android.os.AsyncTask$2.call(AsyncTask.java:287) 
11-05 16:16:46.536: E/AndroidRuntime(5807): at java.util.concurrent.FutureTask.run(FutureTask.java:234) 
11-05 16:16:46.536: E/AndroidRuntime(5807): ... 4 more

来源

2013-11-04 Mostafa Addam

请用这一个你<--jack

public class ActivityLogin extends Activity 
{ 
// Progress Dialog 
    private ProgressDialog pDialog; 
    private static String login_tag = "login"; 
    PostParser jsonParser;//<-- placed in doinbackground <-- jack 
    // UI references. 
    private EditText email; 
    private EditText password; 
    static String Email=""; 
    static String Password=""; 
    // url to create new product 
    private static String login_URL = "jhdakjhdakj"; 
    // JSON Node names 
    private static final String TAG_SUCCESS = "success"; 


    //Query login <<- jack 
    LoginInTask query; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) 
    { 

     super.onCreate(savedInstanceState); 
     //this.requestWindowFeature(Window.FEATURE_NO_TITLE); 

     setContentView(R.layout.activity_login); 

     email=(EditText)findViewById(R.id.email); 
     password=(EditText)findViewById(R.id.password1); 

     Button login=(Button)findViewById(R.id.sign_in_button); 
     login.setOnClickListener(new View.OnClickListener() 
     { 

      @Override 
      public void onClick(View v) 
      { 
       // TODO Auto-generated method stub 
       Email=email.getText().toString(); 
       Password=password.getText().toString(); 

       //Cancel if already runing or dont excute its up to you <-- jack 
       if(query != null) 
       { 
        query.cancel(true); 
       } 
       query = (LoginInTask) new LoginInTask().execute(); 

      } 
     }); 


    } 
    class LoginInTask extends AsyncTask<String, String, String> { 

     //Register success here <-- jack 
      int success=0; 

     /** 
     * Before starting background thread Show Progress Dialog 
     * */ 
     @Override 
     protected void onPreExecute() { 
      super.onPreExecute(); 
      pDialog = new ProgressDialog(ActivityLogin.this); 
      pDialog.setMessage("Logging IN.."); 
      pDialog.setIndeterminate(false); 
      pDialog.setCancelable(true); 
      pDialog.show(); 
     } 
     /** 
     * if canceled <-- jack 
     * */ 
     @Override 
     protected void onCancelled() { 
      if (pDialog != null) 
      { 
       pDialog.dismiss(); 
      } 
     } 
     /** 
     * Creating product 
     * */ 
     protected String doInBackground(String... args) 
     { 
     String Email = email.getText().toString(); 
     String Password = password.getText().toString(); 
     // Building Parameters 
     List<NameValuePair> params = new ArrayList<NameValuePair>(); 
     params.add(new BasicNameValuePair("tag", login_tag)); 
     params.add(new BasicNameValuePair("Email", Email)); 
     params.add(new BasicNameValuePair("Password", Password)); 

     //Try from here coz you are working with JSON <<-- jack 
     try 
     { 
     // getting JSON Object 
     // Note that create product url accepts POST method 

     //Start new Session <-- jack 
     jsonParse = new PostParser(); 
     JSONObject json = jsonParser.makeHttpRequest(login_URL,"POST", params); 


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

     // check for success tag 

       success = json.getInt(TAG_SUCCESS); 
      } catch (JSONException e) 
      { 
       Log.d("Create Response", "Faild");//<-- tag faild to parse JSON 
       e.printStackTrace(); 
      } 


     return null; 
    } 
    /** 
    * After completing background task Dismiss the progress dialog 
    * **/ 
    protected void onPostExecute(int success) 
    { 
     //Check if dialog still runing dismiss <<-- jack 
     if (pDialog != null) 
     { 
      pDialog.dismiss(); 
     } 

     if (success==1) 
     { 
      // successfully created product 
      Intent i = new Intent(getApplicationContext(), ActivitySignUp.class); 
      startActivity(i); 
     } 
     else 
     {     
      Toast.makeText(getApplicationContext(), "Failed", Toast.LENGTH_SHORT).show(); 
     } 
     //finish current activity call it on time only <<-- jack 
     finish(); 
    } 

} 
}

来源

2013-11-05 00:15:25

功能标签，我已经修复很多事情我做了这个变化，但仍同样的错误 –

更改代码你可以请张贴猫日志吗？ –

'ActivityLogin $ LoginInTask.doInBackground（ActivityLogin.java:108）'你在108行有什么？在doinbackground里面？ –

Windows泄漏错误

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