我想从导航项单击中打开片段，但是它在我的代码中不起作用。我也设置了navigationView.setNavigationItemSelectedListener(MainActivity.this)
这是我的代码。
MainActivity.java
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame
, new DashboardFragment())
.commit();
initView();
onClick();
listData = new ArrayList<>();
parentIdList = new ArrayList<>();
reportIdList = new ArrayList<>();
listSubData = new ArrayList<>();
reportSubList = new ArrayList<>();
toolbar.setTitle("Dashboard");
toolbar.setBackgroundColor(getResources().getColor(R.color.colorLightBlue));
toolbar.setTitleTextColor(getResources().getColor(R.color.colorWhite));
setSupportActionBar(toolbar);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawerLayout, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
//drawer.setDrawerListener(toggle);
drawerLayout.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(MainActivity.this);
// ActionBar bar = getSupportActionBar();
// bar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#0059b3")));
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(MainActivity.this);
loginid = sp.getInt("loginId", 0);
userrole = sp.getInt("userrole", 0);
clientid = sp.getInt("clientid", 0);
username = sp.getString("username", "");
Log.e(" prefs loginId", String.valueOf(loginid));
Log.e("prefs userrole", String.valueOf(userrole));
Log.e(" prefs clientid", String.valueOf(clientid));
if (userrole == 99) {
tvUserRole.setText("CLIENT");
tvUserName.setText(username);
} else {
tvUserRole.setText("PARTNER");
tvUserName.setText(username);
}
NavigationOptionsData(String.valueOf(userrole), String.valueOf(loginid), "A");
for(int i=0;i<reportIdList.size();i++)
{
if(MenuItemId == reportIdList.get(i))
{
Log.e("Menuitemid=", String.valueOf(MenuItemId));
// fragToCall = listDatSSa.get(i);
// ReportFragment fragment = new ReportFragment();
// FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
// fragmentTransaction.replace(R.id.frame, fragment, fragToCall);
// fragmentTransaction.add(R.id.test_fragment, fragment, "testtag");
//
// fragmentTransaction.addToBackStack(fragToCall);
// fragmentTransaction.commitAllowingStateLoss();
}
else
{
Log.e("Not equal", "");
}
}
navigationView.bringToFront();
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
return true;
}
});
}
private void initView() {
navigationView = findViewById(R.id.nav_view);
drawerLayout = findViewById(R.id.drawer_layout);
toolbar = findViewById(R.id.toolbar);
rvNavOptions = (ListView) findViewById(R.id.rv_nav_data);
rvNavSubOptions = (ListView) findViewById(R.id.rv_nav_sub_data);
header = navigationView.getHeaderView(0);
tvUserName = (TextView) header.findViewById(R.id.tv_user_name_drawer);
tvUserRole = (TextView) header.findViewById(R.id.tv_user_role_drawer);
tvOptionsId = (TextView) findViewById(R.id.tv_option_id);
}
private void NavigationOptionsData(String roleid, String loginId, String device) {
final APIInterface apiInterface = APIClient.getClient().create(APIInterface.class);
final NavigationDrawerModel navigationDrawerModel = new NavigationDrawerModel(roleid, loginId, device);
Call<NavigationDrawerModel> call1 = apiInterface.createNavigationOption(navigationDrawerModel);
call1.enqueue(new Callback<NavigationDrawerModel>() {
@Override
public void onResponse(Call<NavigationDrawerModel> call, Response<NavigationDrawerModel> response) {
user1 = response.body();
Log.e("Navigation data===", user1.getT0().get(0).getReportText());
Log.e("Length of t0====", String.valueOf(user1.getT0().size()));
Log.e("Length of t1====", String.valueOf(user1.getT1().size()));
for (int i = 0; i < user1.getT0().size(); i++) {
String reportText = user1.getT0().get(i).getReportText();
Integer reportId = user1.getT0().get(i).getReportId();
reportIdList.add(reportId);
listData.add(reportText);
}
for (int i = 0; i < user1.getT1().size(); i++) {
Integer reportParentId = user1.getT1().get(i).getParentId();
String reportSubName = user1.getT1().get(i).getReportText();
parentIdList.add(reportParentId);
listSubData.add(reportSubName);
}
Log.e("Size of parentid list==", String.valueOf(parentIdList.size()));
Log.e("Size of reportid list==", String.valueOf(reportIdList.size()));
navigationDrawerMenu = new NavigationDrawerMenu(listData, parentIdList, getApplicationContext());
rvNavOptions.setAdapter(navigationDrawerMenu);
}
@Override
public void onFailure(Call<NavigationDrawerModel> call, Throwable t) {
Log.e("Error is==", t.getMessage());
}
});
}
private void onClick() {
rvNavOptions.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
navigationDrawerMenu.onClick(view);
MenuItemId = (int) id;
Log.e("id of item click", String.valueOf(id));
}
});
}
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
int id = menuItem.getItemId();
Log.e("Menu item id is=", String.valueOf(id));
return true;
}
这是我的xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main">
<ListView
android:id="@+id/rv_nav_data"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="@dimen/dp150"></ListView>
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
我还设置了navigationView.bringToFront()，但仍然无法正常工作。
我要在Navigationview中设置listview，因为我要从api中设置动态数据。
答案 0 :(得分：0)
//Use Navigation Callback listener as follows
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(createOnNavigationItemClickListener());code here
// Implementation of Navigation Listener
private NavigationView.OnNavigationItemSelectedListener createOnNavigationItemClickListener() {
return new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_1:
return true;
case R.id.menu_2:
return true;
default:
return CheckerDelegate.getCheckerNavigator().onNavigationItemSelected(MainActivity.this, item);
}
}
};
}
答案 1 :(得分：0)
请参见以下步骤以实现NavigationView
1.Implement the listener in your Activity:
public class HomeActivity extends AppCompatActivity implements
NavigationView.OnNavigationItemSelectedListener
2.setNavigationItemSelectedListener in onCreate of Activity
NavigationView mNavigationView = (NavigationView) findViewById(R.id.account_navigation_view);
if (mNavigationView != null) {
mNavigationView.setNavigationItemSelectedListener(this);
}
3.Override the method
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_account) {//DO your stuff }
...
}