Question

MainActivity.java

公共类MainActivity扩展了AppCompatActivity {

DrawerLayout myDrawerLayout;
NavigationView myNavigationView;
FragmentManager myFragmentManager;
FragmentTransaction myFragmentTransaction;

@覆盖 protected void onCreate（Bundle savedInstanceState）{

super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

myDrawerLayout =（DrawerLayout）findViewById（R.id.drawerLayout）;

myNavigationView = (NavigationView) findViewById(R.id.nav_drawer) ;
myFragmentManager = getSupportFragmentManager();
myFragmentTransaction = myFragmentManager.beginTransaction();
myFragmentTransaction.replace(R.id.containerView, new HomeFragment()).commit();

myNavigationView.setNavigationItemSelectedListener（new NavigationView.OnNavigationItemSelectedListener（）{

@Override
public boolean onNavigationItemSelected(MenuItem selectedMenuItem) {

myDrawerLayout.closeDrawers();

if (selectedMenuItem.getItemId() == R.id.nav_item_select1) {
  FragmentTransaction fragmentTransaction = myFragmentManager.beginTransaction();
  fragmentTransaction.replace(R.id.containerView, new Select1()).commit();
            }

返回false;

Pyeondo.java

Answer 1

您已经有片段实例

fragment.setArguments(bundle);

你要在那个实例中设置参数，所以不要创建新的，使用它

fragmentTransaction.replace(R.id.containerView, fragment).commit();

Answer 2

您必须使用相同的片段来设置包。

用片段

替换新的select1（）

 FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
        bundle.putString("Slocale1",SbtnsLocale.getText().toString());
        bundle.putString("Slocale2",SbtneLocale.getText().toString());
        bundle.putString("Sdate1",StxtsDate.getText().toString());
        bundle.putString("Sdate2",SStxtsDate.getText().toString());
        bundle.putString("Sseat",StxtSeat.getText().toString()); // use as per your need

        fragment.setArguments(bundle);
        fragmentTransaction.addToBackStack(null);
        fragmentTransaction.replace(R.id.containerView, fragment).commit();

这使用导航抽屉，并使用Tab，并使用Fragment。 FragmentActivity和Fragment之间的沟通方式如何？

2 个答案: