ActivityGroup 내에서 Activities 및 TabActivities를 시작하려면 어떻게합니까?

Question

는이 코드에 문제가 : 클래스가 ActivityGroup를 확장

getLocalActivityManager().startActivity(id, intent); 

내부에서하는 활동을 시작하지만 나는 TabActivity을 시작해야 할이 작동하지 않습니다.

ActivityGroup 안에 Activities과 TabActivities을 어떻게 시작할 수 있습니까?

Answer 1

당신은 startChildActivity(id,intent);

그리고 정의 된 startChildActivity() 메소드를 사용해야 더 많은 정보 ..

public class TabGroupActivity extends ActivityGroup { 

    private ArrayList<String> mIdList; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState);  
     if (mIdList == null) mIdList = new ArrayList<String>(); 
    } 

    /** 
    * This is called when a child activity of this one calls its finish method. 
    * This implementation calls {@link LocalActivityManager#destroyActivity} on the child activity 
    * and starts the previous activity. 
    * If the last child activity just called finish(),this activity (the parent), 
    * calls finish to finish the entire group. 
    */ 
    @Override 
    public void finishFromChild(Activity child) { 
     LocalActivityManager manager = getLocalActivityManager(); 
     int index = mIdList.size()-1; 

     if (index < 1) { 
      finish(); 
      return; 
     } 

     manager.destroyActivity(mIdList.get(index), true); 
     mIdList.remove(index); index--; 
     String lastId = mIdList.get(index); 
     Intent lastIntent = manager.getActivity(lastId).getIntent(); 
     Window newWindow = manager.startActivity(lastId, lastIntent); 
     setContentView(newWindow.getDecorView()); 
    } 

    /** 
    * Starts an Activity as a child Activity to this. 
    * @param Id Unique identifier of the activity to be started. 
    * @param intent The Intent describing the activity to be started. 
    * @throws android.content.ActivityNotFoundException. 
    */ 
    public void startChildActivity(String Id, Intent intent) {  
     Window window = getLocalActivityManager().startActivity(Id,intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)); 

     if (window != null) { 
      mIdList.add(Id); 
      setContentView(window.getDecorView()); 
     }  
    } 

    /*public void startChildActivityForResult(String Id, Intent intent,int key) {  
     Window window = getLocalActivityManager().startActivityForResult(Id,intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP),key); 
     if (window != null) { 
      mIdList.add(Id); 
      setContentView(window.getDecorView()); 
     }  
    }*/ 

    /** 
    * The primary purpose is to prevent systems before android.os.Build.VERSION_CODES.ECLAIR 
    * from calling their default KeyEvent.KEYCODE_BACK during onKeyDown. 
    */ 
    @Override 
    public boolean onKeyDown(int keyCode, KeyEvent event) { 
     if (keyCode == KeyEvent.KEYCODE_BACK) { 
      //preventing default implementation previous to android.os.Build.VERSION_CODES.ECLAIR 
      return true; 
     } 
     return super.onKeyDown(keyCode, event); 
    } 

    /** 
    * Overrides the default implementation for KeyEvent.KEYCODE_BACK 
    * so that all systems call onBackPressed(). 
    */ 
    @Override 
    public boolean onKeyUp(int keyCode, KeyEvent event) { 
     if (keyCode == KeyEvent.KEYCODE_BACK) { 
      onBackPressed(); 
      return true; 
     } 
     return super.onKeyUp(keyCode, event); 
    } 

    /** 
    * If a Child Activity handles KeyEvent.KEYCODE_BACK. 
    * Simply override and add this method. 
    */ 
    @Override 
    public void onBackPressed () { 
     int length = mIdList.size(); 
     if (length > 1) { 
      Activity current = getLocalActivityManager().getActivity(mIdList.get(length-1)); 
      current.finish(); 
     } 
    } 
} 

ActivityGroup를 확장하는 클래스에 있어야합니다. 여기를 참조하십시오

http://ericharlow.blogspot.in/2010/09/experience-multiple-android-activities.html