So zeigen Sie Alertdialog vor dem Start von asynctask

Question

Ich möchte einen Alertdialog zeigen und einige Eingaben vom Benutzer und danach, die Verarbeitung dieser Eingaben in einer asynctask, aber der Alertdialog werden vor dem Abrufen von Eingaben und asynctask starten ausgeführt werden.

Was soll ich tun? Bitte hilf mir. Hier ist mein Code;

private String[] newspapers,newspapersUrl,newspapersPath; 
private String[] choosed,choosedUrl,choosedPath; 
private boolean[] checked; 

private int perNewspaper; 
private boolean returned = false; 

private AlertDialog.Builder builder; 


private FetchingNewsByChoice fetchingNewsByChoice; 

@Override 
protected void onCreate(Bundle savedInstanceState) 
{ 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
    setSupportActionBar(toolbar); 

    returned = AlertDialogCreation(); 

    if(returned) 
    { 
     fetchingNewsByChoice = new FetchingNewsByChoice((AppCompatActivity)MainActivity.this,choosed,choosedPath,perNewspaper); 
     fetchingNewsByChoice.execute(); 
    } 


    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); 
    fab.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) 
        .setAction("Action", null).show(); 
     } 
    }); 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.menu_main, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 

    //noinspection SimplifiableIfStatement 
    if (id == R.id.action_settings) { 
     return true; 
    } 

    return super.onOptionsItemSelected(item); 
} 

//***** Alert Dialog *****// 
public boolean AlertDialogCreation() 
{ 
    //***** File Control And Creating An Dialog Interface if this is first usage *****// 
    File file = getApplicationContext().getFileStreamPath("First.txt"); 

    if(!file.exists()) 
    { 
     writeToFile("First.txt", "0",true); 
    } 

    if(readFromFile("First.txt",false)[0].equals("0")) 
    { 
     newspapers = readFromFile("Choicable Newspaper.txt",true); 
     newspapersUrl = readFromFile("Choicable Url.txt",true); 
     newspapersPath = readFromFile("Choicable Path.txt",true); 

     checked = new boolean[newspapers.length]; 

     builder = new AlertDialog.Builder(this,R.style.AppCompatAlertDialogStyle); 

     builder.setTitle("Lütfen Güncel Haberlerini Takip Etmek İstediğiniz Siteleri Seçiniz.."); 
     builder.setItems(newspapers, null); 

     builder.setPositiveButton("Tamam", new DialogInterface.OnClickListener() { 
      @Override 
      public void onClick(DialogInterface dialogInterface, int i) { 
       int count = 0; 

       for (int a = 0; a < newspapers.length; a++) { 
        if (checked[a]) { 
         count++; 
         writeToFile("Choosed.txt", newspapers[a], false); 
         writeToFile("ChoosedUrl.txt", newspapersUrl[a], false); 
         writeToFile("ChoosedPath.txt", newspapersPath[a], false); 
        } 

        if (a == (newspapers.length - 1) && count == 0) { 
         Toast.makeText(getApplicationContext(), "En az bir gazete seçmek zorundasınız..", Toast.LENGTH_LONG).show(); 
         builder.show(); 
        } 
       } 
      } 
     }); 

     builder.setMultiChoiceItems(newspapers, checked, new DialogInterface.OnMultiChoiceClickListener() { 
      @Override 
      public void onClick(DialogInterface dialogInterface, int i, boolean isChecked) { 

       if (isChecked) { 
        checked[i] = true; 
       } else { 
        checked[i] = false; 
       } 
      } 
     }); 

     try 
     { 
      builder.show(); 
     } 
     catch (Exception ex) 
     { 
      ex.printStackTrace(); 
     } 


     writeToFile("First.txt", "1", true); 

     choosed = readFromFile("Choosed.txt",false); 
     choosedUrl = readFromFile("ChoosedUrl.txt",false); 
     choosedPath = readFromFile("ChoosedPath.txt",false); 

     if(choosed != null) 
     { 
      perNewspaper = (int) Math.ceil(newspapers.length/choosed.length); 

      if(perNewspaper > 15) 
      { 
       perNewspaper = 14; 
      } 
     } 

     return true; 
    } 
    else if(readFromFile("First.txt",false)[0].equals("1")) 
    { 
     newspapers = readFromFile("Choicable Newspaper.txt",true); 
     newspapersUrl = readFromFile("Choicable Url.txt",true); 
     newspapersPath = readFromFile("Choicable Path.txt",true); 

     choosed = readFromFile("Choosed.txt",false); 
     choosedUrl = readFromFile("ChoosedUrl.txt",false); 
     choosedPath = readFromFile("ChoosedPath.txt",false); 

     perNewspaper = (int) Math.ceil(newspapers.length/choosed.length); 

     if(perNewspaper > 15) 
     { 
      perNewspaper = 14; 
     } 

     return true; 
    } 
    else 
    { 
     return false; 
    } 
    //***** File Control And Creating An Dialog Interface if this is first usage *****// 
} 

//*****Files*****// 
private void writeToFile(String fileName,String data,boolean isPrivate) 
{ 
    try 
    { 
     OutputStreamWriter outputStreamWriter; 

     if(isPrivate) 
     { 
      outputStreamWriter = new OutputStreamWriter(getApplicationContext().openFileOutput(fileName, MODE_PRIVATE)); 
     } 
     else 
     { 
      outputStreamWriter = new OutputStreamWriter(getApplicationContext().openFileOutput(fileName, MODE_APPEND)); 
     } 

     outputStreamWriter.write(data+"\r\n"); 

     outputStreamWriter.close(); 
    } 
    catch (IOException e) 
    { 

    } 
} 


public String[] readFromFile(String fileName,boolean isAsset) 
{ 
    String[] ret=null; 

    try 
    { 
     InputStream inputStream; 

     if(isAsset) 
     { 
      inputStream = getApplicationContext().getAssets().open(fileName); 
     } 
     else 
     { 
      inputStream = getApplicationContext().openFileInput(fileName); 
     } 


     if (inputStream != null) 
     { 

      InputStreamReader inputStreamReader = new InputStreamReader(inputStream); 
      BufferedReader bufferedReader = new BufferedReader(inputStreamReader); 


      String receiveString; 

      StringBuilder stringBuilder = new StringBuilder(); 

      while ((receiveString = bufferedReader.readLine()) != null) { 

       stringBuilder.append(receiveString).append(","); 
      } 

      inputStream.close(); 
      ret = stringBuilder.toString().split(","); 

      inputStream.close(); 
     } 
    } 
    catch (FileNotFoundException e) 
    { 

    } 
    catch (IOException e) 
    { 

    } 

    return ret; 
} 

Answer 1

Ich nehme an, Sie haben eine setpositive Schaltfläche Klick Listener. Starten Sie Ihre asynktask in diesem Listener mit der gewünschten Eingabe.

Answer 2

1. Zuerst Schreiben Sie Ihre eigene Funktion mit Parametern.
2. Asynchrone Task in dieser Funktion aufrufen.
3. Rufen Sie diese Funktion jetzt auf, indem Sie die Formularwerte als Parameter an diese Funktion übergeben, nachdem Sie das Dialogfeld geschlossen haben.