NavigationView에서 선택한 탐색 항목이 보이지 않습니다.

Question

MainActivity을 Navigation Drawer과 5 가지 활동으로 만들었습니다. 하나의 활동을 클릭하면 연관된 활동 레이아웃이 열립니다. 다시 버튼을 누르면 MainActivity으로 이동합니다.

문제는 선택한 활동/항목 이름이 Navigation Drawer에 invisible이지만 onClick이 작동하고 있습니다. 도와주세요.
여기 내 코드입니다

package com.cabbi; 

import android.content.Intent; 
import android.os.Bundle; 
import android.support.design.widget.NavigationView; 
import android.support.design.widget.TabLayout; 
import android.support.v4.app.FragmentTransaction; 
import android.support.v4.app.NavUtils; 
import android.support.v4.view.GravityCompat; 
import android.support.v4.view.ViewPager; 
import android.support.v4.widget.DrawerLayout; 
import android.support.v7.app.ActionBarDrawerToggle; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.Toolbar; 
import android.view.Menu; 
import android.view.MenuItem; 

public class MainActivity extends AppCompatActivity 
     implements NavigationView.OnNavigationItemSelectedListener { 
    FragmentTransaction fragmentTransaction; 
    TabLayout tabLayout; 
    ViewPager viewPager; 
    TabsAdapter tabsAdapter; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 
     getSupportActionBar().setDisplayHomeAsUpEnabled(true); 
     tabLayout= (TabLayout) findViewById(R.id.tab_layout); 
     viewPager= (ViewPager) findViewById(R.id.view_pager); 
     tabLayout.addTab(tabLayout.newTab().setText("RIDE NOW")); 
     tabLayout.addTab(tabLayout.newTab().setText("RIDE LATER")); 
     tabLayout.setTabGravity(TabLayout.GRAVITY_FILL); 
     tabsAdapter=new TabsAdapter(getSupportFragmentManager(),tabLayout.getTabCount()); 
     viewPager.setAdapter(tabsAdapter); 
     viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout)); 
     tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() { 
      @Override 
      public void onTabSelected(TabLayout.Tab tab) { 
       viewPager.setCurrentItem(tab.getPosition()); 
      } 

      @Override 
      public void onTabUnselected(TabLayout.Tab tab) { 

      } 

      @Override 
      public void onTabReselected(TabLayout.Tab tab) { 

      } 
     }); 
//  FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); 
//  fab.setOnClickListener(new View.OnClickListener() { 
//   @Override 
//   public void onClick(View view) { 
//    Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) 
//      .setAction("Action", null).show(); 
//   } 
//  }); 

     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 = (NavigationView) findViewById(R.id.nav_view); 
     navigationView.setNavigationItemSelectedListener(this); 

    } 

    @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(); 
     switch (id){ 
      case android.R.id.home: 
       NavUtils.navigateUpFromSameTask(this); 
      return true; 
     } 

     //noinspection SimplifiableIfStatement 
//  if (id == R.id.action_settings) { 

//  } 

     return super.onOptionsItemSelected(item); 
    } 

    @SuppressWarnings("StatementWithEmptyBody") 
    @Override 
    public boolean onNavigationItemSelected(MenuItem item) { 
     // Handle navigation view item clicks here. 
     int id = item.getItemId(); 

     if (id == R.id.nav_myrides) { 
      startActivity(new Intent(MainActivity.this,MyRides.class)); 

     } else if (id == R.id.nav_profile) { 
      startActivity(new Intent(MainActivity.this,MyProfile.class)); 

     } else if (id == R.id.nav_promotions) { 
      startActivity(new Intent(MainActivity.this,Promotions.class)); 

     } else if (id == R.id.nav_changepassword) { 
      startActivity(new Intent(MainActivity.this,ResetPassword.class)); 

     } else if (id == R.id.nav_logout) { 
      Intent intent=new Intent(MainActivity.this,LoginActivity.class); 
      intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK); 
      startActivity(intent); 

     } 

     DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); 
     drawer.closeDrawer(GravityCompat.START); 
     return true; 
    } 


} 

Answer 1

아래의 속성을 NavigationView에 추가해야합니다.

app:itemIconTint="@android:color/white" 
app:itemTextColor="@android:color/white" 

여기에서 나만의 색상을 사용할 수 있습니다. 나는 이런 식으로 white color을 사용한다. @android:color/white.

전체 코드 : 내가 그것을 투명 생각

<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" 
     android:background="#0072BA" 
     app:headerLayout="@layout/nav_header_main" 
     app:menu="@menu/activity_main_drawer" 
     app:itemIconTint="@android:color/white" 
     app:itemTextColor="@android:color/white"/> 

Answer 2

당신 colorAccent, colorPrimary 몇 가지 눈에 보이는 색상

변경 android.support.design.widget.NavigationView의 색상을 변경

응용 프로그램 : itemIconTint = "# 000" app : itemTextColor = "# 000"