Fragment傳參

1. 封裝基類

/**
 * Created by chenhaibin
 * Time 18/1/20
 * Email chenhaibin415@163.com
 * Description:封裝代碼的基類
 * 基類BaseFragment中的傳遞參數args能夠供子類選擇性使用
 */
public class BaseFragment extends Fragment {

 //傳遞過來的參數Bundle，供子類使用
 protected Bundle args;

 /**
 * 建立fragment的靜態方法，方便傳遞參數
 * @param args 傳遞的參數
 * @return
 */
 public static <T extends Fragment>T newInstance(Class clazz, Bundle args) {
 T mFragment=null;
 try {
 mFragment= (T) clazz.newInstance();
 } catch (java.lang.InstantiationException e) {
 e.printStackTrace();
 } catch (IllegalAccessException e) {
 e.printStackTrace();
 }
 mFragment.setArguments(args);
 return mFragment;
 }

 /**
 * 初始建立Fragment對象時調用
 * @param savedInstanceState
 */
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 args = getArguments();
 }

2. 要傳遞參數的Fragment繼承基類

public class EmotionMainFragment extends BaseFragment 

3. 構造參數並傳遞
//構建傳遞參數
Bundle bundle = new Bundle();
//綁定主內容編輯框
bundle.putBoolean(EmotionMainFragment.BIND_TO_EDITTEXT, true);
//隱藏控件
bundle.putBoolean(EmotionMainFragment.HIDE_BAR_EDITTEXT_AND_BTN, false);
//替換fragment
//建立修改實例
emotionMainFragment = EmotionMainFragment.newInstance(EmotionMainFragment.class, bundle);4. 接收參數 isHidenBarEditTextAndBtn= args.getBoolean(EmotionMainFragment.HIDE_BAR_EDITTEXT_AND_BTN); //獲取判斷綁定對象的參數 isBindToBarEditText=args.getBoolean(EmotionMainFragment.BIND_TO_EDITTEXT);