Wie man Zahlenauswahldialog macht?

Question

meine Anforderung ist wie bei jedem Benutzer auf einige Textansicht und eine zweite Zeit auf diesem Zeitpunkt eine beliebige Zahl aus der Zahlen Picker wählen, daß Anzahl gedruckt werden soll, wenn Benutzer öffnet wieder Dialog als zuvor ausgewählte Anzahl an diesem Dialog

... 
    ... 

    view = (TextView) findViewById(R.id.textView7); 

    LinearLayout L = (LinearLayout) findViewById(R.id.linearLayout5); 
    L.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      showdialog(); 
     } 
    }); 
} 

@Override 
public void onValueChange(NumberPicker picker, int oldVal, int newVal) { 
     Log.i("value is",""+newVal); 
} 

public void showdialog() 
{ 
    Dialog dialog = new Dialog(NameActivity.this); 
    View npView = getLayoutInflater().inflate(R.layout.multidialog, null); 
    final NumberPicker firPicker = 
      (NumberPicker) npView.findViewById(R.id.numberPicker1); 
    firPicker.setMaxValue(9); 
    firPicker.setMinValue(0); 
    final NumberPicker secPicker = 
      (NumberPicker) npView.findViewById(R.id.numberPicker2); 
    secPicker.setMaxValue(9); 
    secPicker.setMinValue(0); 
    final NumberPicker tirPicker = 
      (NumberPicker) npView.findViewById(R.id.numberPicker3); 
    tirPicker.setMaxValue(9); 
    tirPicker.setMinValue(0); 

    AlertDialog.Builder builder = new AlertDialog.Builder(this); 
    builder.setTitle("title"); 
    builder.setView(npView); 
    builder.setPositiveButton("Set", 
    new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialog, int whichButton) { 
      view.setText(String.valueOf(firPicker.getValue() *100 
        + secPicker.getValue() *10 + tirPicker.getValue())); 
     } 
    }); 

    builder.setNegativeButton("Cancel", 
     new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog, int whichButton) { 
     } 
    }); 
    dialog = builder.create(); 
    dialog.show(); 
} 

Answer 1

angezeigt werden soll

public class sample extends Activity{ 

NumberPicker MyNumPicker1, MyNumPicker2, MyNumPicker3; 
TextView txtMyText; 
AlertDialog alertdialog; 

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

    txtMyText = (TextView) findViewById(R.id.txtMyText); 
    txtMyText.setText("5"); 

    txtMyText.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 

       LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
       View v1 = inflater.inflate(R.layout.numpicker, null); 
       MyNumPicker1 = (NumberPicker) v1.findViewById(R.id.MyNunPicker1); 
       MyNumPicker2 = (NumberPicker) v1.findViewById(R.id.MyNunPicker2); 
       MyNumPicker3 = (NumberPicker) v1.findViewById(R.id.MyNunPicker3); 

       MyNumPicker1.setMaxValue(20); 
       MyNumPicker1.setMinValue(1); 
       MyNumPicker1.setValue(Integer.parseInt(txtMyText.getText().toString())); 
       MyNumPicker1.setWrapSelectorWheel(true); 

       MyNumPicker2.setMaxValue(20); 
       MyNumPicker2.setMinValue(1); 
       MyNumPicker2.setValue(Integer.parseInt(txtMyText.getText().toString())); 
       MyNumPicker2.setWrapSelectorWheel(true); 

       MyNumPicker3.setMaxValue(20); 
       MyNumPicker3.setMinValue(1); 
       MyNumPicker3.setValue(Integer.parseInt(txtMyText.getText().toString())); 
       MyNumPicker3.setWrapSelectorWheel(true); 


       AlertDialog.Builder builder = new AlertDialog.Builder(sample.this); 

       builder.setView(v1); 
       builder.setTitle("Select Number"); 
       builder.setPositiveButton("Set", new DialogInterface.OnClickListener() { 

        @Override 
        public void onClick(DialogInterface dialog, int which) { 
         int NumVal1 = MyNumPicker1.getValue(); 
         int NumVal2 = MyNumPicker2.getValue(); 
         int NumVal3 = MyNumPicker3.getValue(); 

         txtMyText.setText(""+ ((NumVal1 * 100) + (NumVal2 * 10) + NumVal3)); 
        } 
       }); 

       builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { 

        @Override 
        public void onClick(DialogInterface dialog, int which) { 
         alertdialog.dismiss(); 

        } 
       }); 

       alertdialog = builder.create(); 
       alertdialog.show(); 

      } 
     }); 
} 

} 

hier ist der number_picker.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:orientation="vertical" > 

<NumberPicker 
    android:id="@+id/MyNunPicker2" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentTop="true" 
    android:layout_centerHorizontal="true" /> 

<NumberPicker 
    android:id="@+id/MyNunPicker3" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_toRightOf="@id/MyNunPicker2" /> 

<NumberPicker 
    android:id="@+id/MyNunPicker1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentTop="true" 
    android:layout_toLeftOf="@+id/MyNunPicker2"/> 

</RelativeLayout>