Wie erhält man Zeichenkette Text von AutoCompleteTextView in Android?

Question

public class FareActivity extends Activity { 


int fareid; 
String Source; 
String Dest; 
AutoCompleteTextView source; 
AutoCompleteTextView dest; 


static final String[] SOURCE = new String[] { 
     "Delhi", "Mumbai", "Agra", "Jaipur}; 


static final String[] DEST = new String[] { 
     "Delhi", "Mumbai", "Agra", "Jaipur}; 




/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.fare); 




    dest = (AutoCompleteTextView) findViewById(R.id.acdest); 
    ArrayAdapter<String> dadapter = new ArrayAdapter<String>(this, R.layout.list_item, DEST); 
    dest.setAdapter(dadapter); 



source = (AutoCompleteTextView) findViewById(R.id.acsource); 
ArrayAdapter<String> sadapter = new ArrayAdapter<String>(this, R.layout.list_item, SOURCE); 
    dest.setAdapter(sadapter); 




// Fare id calculation 

    if(Source=="Delhi" && Dest=="Jaipur") 
    { 
     fareid=1; 
    } 
    else if(Source=="Delhi" && Dest=="Agra") 
    { 
     fareid=2; 
    } 
    else if(Source=="Delhi" && Dest=="Mumbai") 
    { 
     fareid=3; 
    } 

}

Ich möchte nur speichern autocompletetextview 'Quelle' und autocompletetextview 'dest' Werte String-Variable 'Source' und String Variable 'Dest'. Ich werde beide String-Variablen für die weitere Verarbeitung in meinem Projekt verwenden, also bitte hilf mir.

Answer 1

Nun, zuerst müssen Sie die threshold value definieren. Die Anzahl der Zeichen, mit denen Sie die Liste der Zeichen beginnen möchten.

acTextView = (AutoCompleteTextView)findViewById(R.id.autoCompleteTextbox); acTextView.setThreshold(3);

, dann

add a textwatcher and implement addTextChangedListener AutoCompleteTextView.

Unten ist ein Beispiel:

TextWatcher fieldValidatorTextWatcher = new TextWatcher() { 

     @Override 
     public void afterTextChanged(Editable s) { 
     } 

     @Override 
     public void beforeTextChanged(CharSequence s, int start, int count, int after) { 
     } 

     @Override 
     public void onTextChanged(CharSequence s, int start, int before, int count) { 
      if (filterLongEnough()) { 

       String str=acTextView.getText().toString().trim(); 
       populateList(str);//Function in which i am using the strings from DB, u dnt need it but just in case 
      } 
     } 

     private boolean filterLongEnough() { 
      return acTextView.getText().toString().trim().length() > 2; 
     } 
    }; 
    acTextView.addTextChangedListener(fieldValidatorTextWatcher);