【发布时间】：2017-12-08 14:32:19
【问题描述】：
我的问题是将字符串从活动传递到片段。我研究了一整天，我的问题没有解决。
活动：
if(email.matches(users.user1)&&password.matches(users.pass1)){
Intent intent = new Intent(LoginActivity.this,MainActivity.class);
Bundle bundle = new Bundle();
bundle.putString("user", users.name);
ProfileFragment fragobj = new ProfileFragment();
fragobj.setArguments(bundle);
startActivity(intent);
}
片段：
public class ProfileFragment extends Fragment {
public static ProfileFragment newInstance() {
return new ProfileFragment();
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_profile, container, false);
String user = getArguments().getString("user");
TextView textView = v.findViewById(R.id.namef1);
textView.setText(user);
return inflater.inflate(R.layout.fragment_profile, container, false);
}
}
主活动
public class MainActivity extends Activity {
private BottomNavigationView mBottomNavigationView;
private Toolbar supportActionBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setupBottomNavigation();
if (savedInstanceState == null) {
loadHomeFragment();
}
}
private void setupBottomNavigation() {
mBottomNavigationView =findViewById(R.id.bottom_navigation);
mBottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.action_home:
loadHomeFragment();
return true;
case R.id.action_profile:
loadProfileFragment();
return true;
case R.id.action_settings:
loadSettingsFragment();
return true;
}
return false;
}
});
}
private void loadHomeFragment() {
HomeFragment fragment = HomeFragment.newInstance();
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.fragment_frame, fragment);
ft.commit();
}
private void loadProfileFragment() {
ProfileFragment fragment = ProfileFragment.newInstance();
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.fragment_frame, fragment);
ft.commit();
}
private void loadSettingsFragment() {
SettingsFragment fragment = SettingsFragment.newInstance();
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.fragment_frame, fragment);
ft.commit();
}
public void setSupportActionBar(Toolbar supportActionBar) {
this.supportActionBar=supportActionBar;
}
}
如代码中所示，用户已登录，并且他的其中一个数据显示在配置文件片段中。我想在 profilefragment 中将此字符串显示为 Textview 。 有人有想法吗？
【问题讨论】：
标签： android fragment parameter-passing