我有一个主导航抽屉，我称之为登录片段。还有其他片段我可以轻松调用。但是当我登录时，第二个导航抽屉打开了，我无法调用相同的碎片，这些碎片在使用主导航抽屉时可以轻松调用。
这是我的主要活动，其中导航抽屉被称为
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private View.OnClickListener mOnClickListener;
SessionManager session;
private NavigationView navigationView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
session = new SessionManager(getApplicationContext());
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
Fragment homeFragment;
if(!session.isLoggedIn()){
homeFragment = new SigninFragment();
getSupportFragmentManager().beginTransaction().replace(R.id.content_main, homeFragment, String.valueOf(homeFragment.getClass())).addToBackStack(null).commit();
getSupportActionBar().setTitle(getResources().getString(R.string.signin_title));
}
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
Fragment fr;
FragmentManager supportFragmentManager = getSupportFragmentManager();
ActionBar supportActionBar = getSupportActionBar();
supportActionBar.setTitle("productAga");
int id = item.getItemId();
switch (id){
case R.id.home_nv:
fr = new HomeFragment();
supportFragmentManager.beginTransaction().replace(R.id.content_main, fr, String.valueOf(fr.getClass())).addToBackStack(null).commit();
supportActionBar.setTitle(getResources().getString(R.string.home_title));
break;
case R.id.signup_nv:
fr = new SignupFragment();
supportFragmentManager.beginTransaction().replace(R.id.content_main, fr, String.valueOf(fr.getClass())).addToBackStack(null).commit();
supportActionBar.setTitle(getResources().getString(R.string.signup_title));
/*Intent it = new Intent(getApplicationContext(), SignupActivity.class);
startActivity(it);*/
break;
case R.id.signin_nv:
fr = new SigninFragment();
supportFragmentManager.beginTransaction().replace(R.id.content_main, fr, String.valueOf(fr.getClass())).addToBackStack(null).commit();
supportActionBar.setTitle(getResources().getString(R.string.signin_title));
break;
case R.id.about_nv:
fr = new AboutusFragment();
supportFragmentManager.beginTransaction().replace(R.id.content_main, fr, String.valueOf(fr.getClass())).addToBackStack(null).commit();
supportActionBar.setTitle(getResources().getString(R.string.about_title));
break;
case R.id.logout_nv:
session.logoutUser();
Intent it = new Intent(getApplicationContext(), MainActivity.class);
startActivity(it);
break;
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
现在，当我登录时，我正在使用此代码，并注意到有相同的aboutus片段
public class LoggedinMainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
SessionManager session;
private String gname;
private String gemail;
private static final String TAG = "TAG_LOG_IN" ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_loggedin_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
session = new SessionManager(getApplicationContext());
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawerlg_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_login_view);
navigationView.setNavigationItemSelectedListener(this);
/*Fragment homeFragment;
if(session.isLoggedIn()){
homeFragment = new DashboardFragment();
getSupportFragmentManager().beginTransaction().replace(R.id.content_main, homeFragment, String.valueOf(homeFragment.getClass())).addToBackStack(null).commit();
getSupportActionBar().setTitle(getResources().getString(R.string.signin_title));
}*/
session.checkLogin();
HashMap<String, String> user = session.getUserDetails();
gname = user.get(SessionManager.KEY_NAME);
gemail = user.get(SessionManager.KEY_EMAIL);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.loggedin_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
Fragment fr;
FragmentManager supportFragmentManager = getSupportFragmentManager();
ActionBar supportActionBar = getSupportActionBar();
supportActionBar.setTitle("productAga");
int id = item.getItemId();
switch (id){
case R.id.homelg_nv:
fr = new HomeFragment();
supportFragmentManager.beginTransaction().replace(R.id.content_main, fr, String.valueOf(fr.getClass())).addToBackStack(null).commit();
supportActionBar.setTitle(getResources().getString(R.string.home_title));
break;
case R.id.aboutlg_nv:
Log.d(TAG +"_ABOUT", ": about");
fr = new AboutusFragment();
supportFragmentManager.beginTransaction().replace(R.id.content_main, fr, String.valueOf(fr.getClass())).addToBackStack(null).commit();
supportActionBar.setTitle(getResources().getString(R.string.about_title));
break;
case R.id.logout_nv:
session.logoutUser();
Intent it = new Intent(getApplicationContext(), MainActivity.class);
startActivity(it);
break;
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawerlg_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
我也在使用共享偏好进行会话管理以登录
此外，当我点击关于我们的
时，我遇到了android监视器java.lang.IllegalArgumentException: No view found for id 0x7f0d008a (com.roomi.productagaapplication:id/content_main) for fragment AboutusFragment{35e39e5d #0 id=0x7f0d008a}