작업 표시 줄 시작 조각

Question

어떻게 조각을 onOptionsItemsSelected에서 시작할 수 있습니까?

@Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     switch (item.getItemId()) { 
      case R.id.action_support: 

       Fragment f = new SupportFragment(); 
          FragmentManager fragmentManager = getFragmentManager(); 
       fragmentManager.beginTransaction() 
         .replace(android.R.id.content, f).commit(); 



       Toast display = Toast.makeText(this, "Settings", 10); 
       display.show(); 
      case R.id.action_guide: 
       Toast display1 = Toast.makeText(this, "Guide", 10); 
       display1.show(); 
      return true; 
      default: 
      return super.onOptionsItemSelected(item); 
     } 
    } 

} 

메신저를 시작하려고합니다.

감사

Answer 1

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    Fragment fragment; 
    switch (item.getItemId()) { 
      case R.id.action_support: 
       fragment = new Home(); 
      case 1: 
       fragment = new NotesList(); 
      default: 
       fragment = new defaultPageOrAnyOtheOption(); 
    } 

    FragmentManager fragmentManager = getFragmentManager(); 
    fragmentManager.beginTransaction() 
      .replace(R.id.content_frame, fragment).commit(); 
    return true; 

} // onOptionsItemSelected 

Answer 2

는 그것을 시도

@Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     switch (item.getItemId()) { 
      case R.id.action_support: 

       //launch Support Fragment 
      // Fragment f = new SupportFragment(); 
      // replace(android.R.id.content, f); 

       Toast display = Toast.makeText(this, "Settings", 10); 
       display.show(); 
      return true; 
      case R.id.action_guide: 
       Toast display1 = Toast.makeText(this, "Guide", 10); 
       display1.show(); 
      return true; 
        } 
    }