如何在Android中將Fragment中的整數值傳遞給FragmentActivity？

Question

我已經通過使用this教程實現了可交換標籤頁視圖。

我想從Fragment傳遞一個整數值到FragmentActivity。怎麼做？

我fragment.java：

public PastaFragment(FragmentManager fm, int hot_number) { 
     super(); 

     this.hot_number = hot_number; 
    } 

內部片段的onCreate：

mCartList = ShoppingCartHelper.getCartList(); 

     // Make sure to clear the selections 
     for (int i = 0; i < mCartList.size(); i++) { 
      mCartList.get(i).selected = false; 

      hot_number = mCartList.size(); 
      System.out.println("hot_number11 = " + hot_number); 

     } 

     Fragment Pasfragment = new PastaFragment(getFragmentManager(), hot_number); 
     Bundle bundle = new Bundle(); 
     bundle.putLong("hot_number", hot_number); 

     Pasfragment.setArguments(bundle); 

內activityfragment.java：

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

     hot_number = getIntent().getIntExtra("hot_number", hot_number); 

內TabsPagerAdapter.java：

@Override 
    public Fragment getItem(int index) { 

     switch (index) { 
     case 0: 

      FragmentManager getFragmentManager = null; 
      return new PastaFragment(getFragmentManager, index); 
     } 

     return null; 
    } 

Answer 1

試試這個方法：

Intent intent = new Intent(getActivity(), YourFragmentActivity.class); 
intent.putExtra("YourInteger", 1); 
getActivity().startActivity(intent);