title: Android Studio 2.1 using Navigation Drawer Activity error
body: <p>I created a new Activity with the <strong>NavigationDrawerTemplate</strong> on Android Studio </p>
  
  <p>This is what the code created for the <strong>.java</strong> class file </p>
  
  <blockquote>
    <p>Homescreen.java</p>
  </blockquote>
  
  <pre><code>public class Homescreen extends AppCompatActivity
          implements NavigationView.OnNavigationItemSelectedListener {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_homescreen);
          Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
          setSupportActionBar(toolbar);
  
          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.homescreen, 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.
          int id = item.getItemId();
  
          if (id == R.id.nav_camera) {
              // Handle the camera action
          } else if (id == R.id.nav_gallery) {
  
          } else if (id == R.id.nav_slideshow) {
  
          } else if (id == R.id.nav_manage) {
  
          } else if (id == R.id.nav_share) {
  
          } else if (id == R.id.nav_send) {
  
          }
  
          DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
          drawer.closeDrawer(GravityCompat.START);
          return true;
      }
  }
  </code></pre>
  
  <p>When the template is created all the icons for the side nav bar icons are in .xml format</p>
  
  <p>One example is <strong>ic_menu_gallery.xml</strong>  which creates an icon of a gallery picture</p>
  
  <pre><code>    &lt;vector xmlns:android="http://schemas.android.com/apk/res/android"
      android:width="24dp"
      android:height="24dp"
      android:viewportHeight="24.0"
      android:viewportWidth="24.0"&gt;
      &lt;path
          android:fillColor="#FF000000"
          android:pathData="M22,16V4c0,-1.1 -0.9,-2 -2,-2H8c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2zm-11,-4l2.03,2.71L16,11l4,5H8l3,-4zM2,6v14c0,1.1 0.9,2 2,2h14v-2H4V6H2z" /&gt;
  &lt;/vector&gt;
  </code></pre>
  
  <p>However, when I try to change this to a <strong>PNG</strong> file it throws the error </p>
  
  <blockquote>
    <p>08-17 19:31:33.257 10228-10228/com.example.dd.ee_android_appliction E/AndroidRuntime:
    FATAL EXCEPTION: main
                                                                                              java.lang.RuntimeException: Unable to start activity
    ComponentInfo{com.example.dd.ee_android_appliction/com.example.dd.ee_android_appliction.Homescreen}:
    android.view.InflateException: Binary XML file line #16: Error
    inflating class android.support.design.widget.NavigationView
                                                                                                  at
    android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2338)
                                                                                                  at
    android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2388)
                                                                                                  at android.app.ActivityThread.access$900(ActivityThread.java:148)
                                                                                                  at
    android.app.ActivityThread$H.handleMessage(ActivityThread.java:1319)
                                                                                                  at android.os.Handler.dispatchMessage(Handler.java:99)
                                                                                                  at android.os.Looper.loop(Looper.java:137)
                                                                                                  at android.app.ActivityThread.main(ActivityThread.java:5457)
                                                                                                  at java.lang.reflect.Method.invokeNative(Native Method)
                                                                                                  at java.lang.reflect.Method.invoke(Method.java:525)
                                                                                                  at
    com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:854)
                                                                                                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:670)
                                                                                                  at dalvik.system.NativeStart.main(Native Method)
                                                                                               Caused by: android.view.InflateException: Binary XML file line #16:
    Error inflating class android.support.design.widget.NavigationView
                                                                                                  at android.view.LayoutInflater.createView(LayoutInflater.java:620)
                                                                                                  at
    android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
                                                                                                  at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
                                                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
                                                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
                                                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
                                                                                                  at
    android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
                                                                                                  at
    android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
                                                                                                  at
    com.example.dd.ee_android_appliction.Homescreen.onCreate(Homescreen.java:22)
                                                                                                  at android.app.Activity.performCreate(Activity.java:5234)
                                                                                                  at
    android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
                                                                                                  at
    android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2302)
                                                                                                  at
    android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2388) 
                                                                                                  at android.app.ActivityThread.access$900(ActivityThread.java:148) 
                                                                                                  at
    android.app.ActivityThread$H.handleMessage(ActivityThread.java:1319) 
                                                                                                  at android.os.Handler.dispatchMessage(Handler.java:99) 
                                                                                                  at android.os.Looper.loop(Looper.java:137) 
                                                                                                  at android.app.ActivityThread.main(ActivityThread.java:5457) 
                                                                                                  at java.lang.reflect.Method.invokeNative(Native Method) 
                                                                                                  at java.lang.reflect.Method.invoke(Method.java:525) 
                                                                                                  at
    com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:854) 
                                                                                                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:670) 
                                                                                                  at dalvik.system.NativeStart.main(Native Method) 
                                                                                               Caused by: java.lang.reflect.InvocationTargetException
                                                                                                  at java.lang.reflect.Constructor.constructNative(Native Method)
                                                                                                  at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
                                                                                                  at android.view.LayoutInflater.createView(LayoutInflater.java:594)
                                                                                                  at
    android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696) 
                                                                                                  at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
                                                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
                                                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
                                                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
                                                                                                  at
    android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249) 
                                                                                                  at
    android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106) 
                                                                                                  at
    com.example.dd.ee_android_appliction.Homescreen.onCreate(Homescreen.java:22) 
                                                                                                  at android.app.Activity.performCreate(Activity.java:5234) 
                                                                                                  at
    android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
                                                                                                  at
    android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2302) 
                                                                                                  at
    android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2388) 
                                                                                                  at android.app.ActivityThread.access$900(ActivityThread.java:148) 
                                                                                                  at
    android.app.ActivityThread$H.handleMessage(ActivityThread.java:1319) 
                                                                                                  at android.os.Handler.dispatchMessage(Handler.java:99) 
                                                                                                  at android.os.Looper.loop(Looper.java:137) 
                                                                                                  at android.app.ActivityThread.main(ActivityThread.java:5457) 
                                                                                                  at java.lang.reflect.Method.invokeNative(Native Method) 
                                                                                                  at java.lang.reflect.Method.invoke(Method.java:525) 
                                                                                                  at
    com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:854) 
                                                                                                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:670) 
                                                                                                  at dalvik.system.NativeStart.main(Native Method) 
                                                                                               Caused by: java.lang.NullPointerException
                                                                                                  at
    android.content.res.ResourcesEx.getThemeDrawable(ResourcesEx.java:456)
                                                                                                  at android.content.res.ResourcesEx.loadDrawable(ResourcesEx.java:432)
                                                                                                  at android.content.res.Resources.getDrawable(Resources.java:702)
                                                                                                  at
    android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:321)
                                                                                                  at
    android.support.v7.internal.widget.TintManager.getDrawable(TintManager.java:145)
                                                                                                  at
    android.support.v7.internal.view.menu.MenuItemImpl.getIcon(MenuItemImpl.java:422)
                                                                                                  at
    android.support.design.internal.NavigationMenuPresenter$NavigationMenuAdapter.prepareMenuItems(NavigationMenuPresenter.java:383)
                                                                                                  at
    android.support.design.internal.NavigationMenuPresenter$NavigationMenuAdapter.(NavigationMenuPresenter.java:255)
                                                                                                  at
    android.support.design.internal.NavigationMenuPresenter.getMenuView(NavigationMenuPresenter.java:97)
                                                                                                  at
    android.support.design.widget.NavigationView.(NavigationView.java:149)
                                                                                                  at
    android.support.design.widget.NavigationView.(NavigationView.java:88)
                                                                                                  at java.lang.reflect.Constructor.constructNative(Native Method) 
                                                                                                  at java.lang.reflect.Constructor.newInstance(Constructor.java:417) 
                                                                                                  at android.view.LayoutInflater.createView(LayoutInflater.java:594) 
                                                                                                  at
    android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696) 
                                                                                                  at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
                                                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
                                                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
                                                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
                                                                                                  at
    android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249) 
                                                                                                  at
    android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106) 
                                                                                                  at
    com.example.dd.ee_android_appliction.Homescreen.onCreate(Homescreen.java:22) 
                                                                                                  at android.app.Activity.performCreate(Activity.java:5234) 
                                                                                                  at
    android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
                                                                                                  at
    android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2302) 
                                                                                                  at
    android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2388) 
                                                                                                  at android.app.ActivityThread.access$900(ActivityThread.java:148) 
                                                                                                  at
    android.app.ActivityThread$H.handleMessage(ActivityThread.java:1319) 
                                                                                                  at android.os.Handler.dispatchMessage(Handler.java:99) 
                                                                                                  at android.os.Looper.loop(Looper.java:137) 
                                                                                                  at android.app.ActivityThread.main(ActivityThread.java:5457) 
                                                                                                  at java.lang.reflect.Method.invokeNative(Native Method) 
                                                                                                  at java.lang.reflect.Method.invoke(Method.java:525) 
                                                                                                  at
    com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:854) 
                                                                                                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:670) 
                                                                                                  at dalvik.system.NativeStart.main(Native Method)</p>
  </blockquote>
  
  <p>How what should i do to be able to import <strong>PNG</strong> icons as my navigation bar icons instead of <strong>XML</strong> format? </p>
  
  <h2>EDIT:</h2>
  
  <p>As requested here is the homescreen layout xml code thank you!</p>
  
  <pre><code>   &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      xmlns:tools="http://schemas.android.com/tools"
      android:id="@+id/drawer_layout"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:fitsSystemWindows="true"
      tools:openDrawer="start"&gt;
  
      &lt;include
          layout="@layout/app_bar_homescreen"
          android:layout_width="match_parent"
          android:layout_height="match_parent" /&gt;
  
      &lt;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_homescreen"
          app:menu="@menu/activity_homescreen_drawer" /&gt;
  
  &lt;/android.support.v4.widget.DrawerLayout&gt;
  </code></pre>