다른 활동에 주어진 메소드의 반환 값을 얻는 방법?

Question

아래 주어진 메소드의 반환 값을 다른 활동으로 가져 오는 방법은 무엇입니까?

사실 이것은 모든 연락처를 목록보기에서 가져 오는 데 사용하는 DatabasHandler 클래스의 메소드입니다. 그래서 내 VewContact.class (sqlite 데이터베이스에서 listview 채우기)이이 함수를 호출하고 싶습니다. 그것의 반환 값은 contactList입니다. 내 기능에서 어떻게 부를 수 있습니까? 당신이 이해 바랍니다 .. :)

ADD (ViewContact) :

public class ViewContact extends Activity { 
DatabaseHandler db = new DatabaseHandler(this); 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    db.getAllContacts(); 
    populateListView(); 
} 

private void populateListView() { 
    ArrayAdapter<Contact> adapter = new MyListAdapter(); 
    ListView list = (ListView) findViewById(R.id.carsListView); 
    list.setAdapter(adapter); 
} 

private class MyListAdapter extends ArrayAdapter<Contact> { 
    public MyListAdapter() { 
     super(ViewContact.this, R.layout.item_view, db.getAllContacts()); 
    } 


    @Override 
     public View getView(int position, View convertView, ViewGroup parent) { 
      // Make sure we have a view to work with (may have been given null) 
      View itemView = convertView; 
      if (itemView == null) { 
       itemView = getLayoutInflater().inflate(R.layout.item_view, parent, false); 
      } 

      // Find the car to work with. 
      Contact contact = db.getAllContacts().get(position); 

      // Make: 
      TextView makeText = (TextView) itemView.findViewById(R.id.item_txtMake); 
      makeText.setText(contact.getID()); 

      // Year: 
      TextView yearText = (TextView) itemView.findViewById(R.id.item_txtYear); 
      yearText.setText("" + contact.getName()); 

      // Condition: 
      TextView condionText = (TextView) itemView.findViewById(R.id.item_txtCondition); 
      condionText.setText(""+contact.getPhoneNumber()); 
      return itemView; 

     } 

    }} 

ERROR (로그 캣) :

08-17 09:03:24.132: E/AndroidRuntime(17094): FATAL EXCEPTION: main 
08-17 09:03:24.132: E/AndroidRuntime(17094): android.content.res.Resources$NotFoundException: String resource ID #0x1 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.content.res.Resources.getText(Resources.java:201) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.TextView.setText(TextView.java:2961) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at com.parth.targetthebudget.ViewContact$MyListAdapter.getView(ViewContact.java:51) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.AbsListView.obtainView(AbsListView.java:1593) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.ListView.measureHeightOfChildren(ListView.java:1251) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.ListView.onMeasure(ListView.java:1162) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.view.View.measure(View.java:8313) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.RelativeLayout.measureChild(RelativeLayout.java:566) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:381) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.view.View.measure(View.java:8313) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.FrameLayout.onMeasure(FrameLayout.java:250) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.view.View.measure(View.java:8313) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.LinearLayout.measureVertical(LinearLayout.java:531) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.LinearLayout.onMeasure(LinearLayout.java:309) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.view.View.measure(View.java:8313) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.widget.FrameLayout.onMeasure(FrameLayout.java:250) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.view.View.measure(View.java:8313) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.view.ViewRoot.performTraversals(ViewRoot.java:845) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.view.ViewRoot.handleMessage(ViewRoot.java:1865) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.os.Handler.dispatchMessage(Handler.java:99) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.os.Looper.loop(Looper.java:130) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at android.app.ActivityThread.main(ActivityThread.java:3687) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at java.lang.reflect.Method.invokeNative(Native Method) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at java.lang.reflect.Method.invoke(Method.java:507) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625) 
08-17 09:03:24.132: E/AndroidRuntime(17094): at dalvik.system.NativeStart.main(Native Method) 

XML (item_view) :

,659,351,167,913,803,210

XML (주요 활동) :

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:padding="20dp" 
    tools:context=".MainActivity" > 

    <TextView 
     android:id="@+id/txtMake" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentTop="true" 
     android:layout_alignParentLeft="true" 
     android:text="All My Cars" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

    <ListView 
     android:id="@+id/carsListView" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_alignLeft="@+id/txtMake" 
     android:layout_below="@+id/txtMake" > 

    </ListView> 

</RelativeLayout> 

Answer 1

목록 < 연락처> allcontacts = db.getAllContacts();