I have a problem with my code.. the app crashes while i want to open it

My xml code

<androidx.drawerlayout.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:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/drawerlayout"
tools:context=".MainActivity">


<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">

<com.google.android.material.appbar.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar2"
android:layout_height="?attr/actionBarSize"
android:layout_width="match_parent"
app:layout_scrollFlags="scroll|enterAlways"/>

<com.google.android.material.tabs.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

<FrameLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/content_frag"/>

</com.google.android.material.appbar.AppBarLayout>

<androidx.viewpager.widget.ViewPager
android:id="@+id/pager"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="match_parent" />


</androidx.coordinatorlayout.widget.CoordinatorLayout>

<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/nav_view"
android:layout_gravity="start"
app:menu="@menu/menu_nav"
app:headerLayout="@layout/nav_header"/>
</androidx.drawerlayout.widget.DrawerLayout>

My logcat error

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.hfad.myrevisedlawcoursesapp/com.hfad.myrevisedlawcoursesapp.MainActivity}: android.view.InflateException: Binary XML file line #50: Binary XML file line #50: Error inflating class com.google.android.material.navigation.NavigationView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.access$900(ActivityThread.java:150)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.view.InflateException: Binary XML file line #50: Binary XML file line #50: Error inflating class com.google.android.material.navigation.NavigationView
at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:696)
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:170)
at com.hfad.myrevisedlawcoursesapp.MainActivity.onCreate(MainActivity.java:31)
at android.app.Activity.performCreate(Activity.java:6406)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
at android.app.ActivityThread.access$900(ActivityThread.java:150) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Caused by: android.view.InflateException: Binary XML file line #50: Error inflating class com.google.android.material.navigation.NavigationView
at android.view.LayoutInflater.createView(LayoutInflater.java:645)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:835)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:696) 
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:170) 
at com.hfad.myrevisedlawcoursesapp.MainActivity.onCreate(MainActivity.java:31) 
at android.app.Activity.performCreate(Activity.java:6406) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
at android.app.ActivityThread.access$900(ActivityThread.java:150) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.view.LayoutInflater.createView(LayoutInflater.java:619)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764) 
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:835) 
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:515) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:696) 
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:170) 
at com.hfad.myrevisedlawcoursesapp.MainActivity.onCreate(MainActivity.java:31) 
at android.app.Activity.performCreate(Activity.java:6406) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
at android.app.ActivityThread.access$900(ActivityThread.java:150) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Caused by: java.lang.RuntimeException: Unexpected end of document
at androidx.appcompat.view.SupportMenuInflater.parseMenu(SupportMenuInflater.java:216)
at androidx.appcompat.view.SupportMenuInflater.inflate(SupportMenuInflater.java:129)
at com.google.android.material.navigation.NavigationView.inflateMenu(NavigationView.java:367)
at com.google.android.material.navigation.NavigationView.<init>(NavigationView.java:235)
at com.google.android.material.navigation.NavigationView.<init>(NavigationView.java:122)

My main activity code...

public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private ShareActionProvider shareActionProvider;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar2);
setSupportActionBar(toolbar);

DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawerlayout);
ActionBarDrawerToggle action = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.open_drawer,R.string.close_drawer);
drawer.addDrawerListener(action);
action.syncState();

SectionPagerAdapter pagerAdapter = new SectionPagerAdapter(getSupportFragmentManager());
ViewPager pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(pagerAdapter);

TabLayout tab = (TabLayout) findViewById(R.id.tabs);
tab.setupWithViewPager(pager);

NavigationView nav = (NavigationView) findViewById(R.id.nav_view);
nav.setNavigationItemSelectedListener(this);//register the activity with the navigation view as a listener

Fragment fr = new HomeFragment();
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.add(R.id.content_frag,fr);
ft.commit();
}

Pls help... i have searched stack overflow and no answer works

cc: spoilerx parkervero millerules

What's on line #50 of your layout XML code?

Millerules:
What's on line #50 of your layout XML code?

This sir

<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/nav_view"
android:layout_gravity="start"
app:menu="@menu/menu_nav"
app:headerLayout="@layout/nav_header"/>

Its almost similar to the one I did in my tutorial but my tutorial works but this doesn't

show the entire xml code

spoilerx:
show the entire xml code

This is it boss... I was just working on the main activity xml and the error occurred

Etinosa1234:
I have a problem with my code.. the app crashes while i want to open it

My xml code

<androidx.drawerlayout.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:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/drawerlayout"
tools:context=".MainActivity">


<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">

<com.google.android.material.appbar.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar2"
android:layout_height="?attr/actionBarSize"
android:layout_width="match_parent"
app:layout_scrollFlags="scroll|enterAlways"/>

<com.google.android.material.tabs.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

<FrameLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/content_frag"/>

</com.google.android.material.appbar.AppBarLayout>

<androidx.viewpager.widget.ViewPager
android:id="@+id/pager"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="match_parent" />


</androidx.coordinatorlayout.widget.CoordinatorLayout>

<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/nav_view"
android:layout_gravity="start"
app:menu="@menu/menu_nav"
app:headerLayout="@layout/nav_header"/>
</androidx.drawerlayout.widget.DrawerLayout>

Do you have a nav_header.xml in your layout directory?

It seems like you are trying to load a file that doesn't exist, hence the crash

hollyfat:
Do you have a nav_header.xml in your layout directory?

It seems like you are trying to load a file that doesn't exist, hence the crash

Yes.. I created the file already... I've been seeing some possible solutions that entails me using the include tag.. I hope it works tho

Etinosa1234:


This sir

<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/nav_view"
android:layout_gravity="start"
app:menu="@menu/menu_nav"
app:headerLayout="@layout/nav_header"/>

Its almost similar to the one I did in my tutorial but my tutorial works but this doesn't

Does that class exist

Delete the xml snippets

nurain150:

Does that class exist

Yes

I tested everything thing in the code and apparently the problem is the bolded

Etinosa1234:


This sir

<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/nav_view"
android:layout_gravity="start"
app:menu="@menu/menu_nav"
app:headerLayout="@layout/nav_header"/>

Its almost similar to the one I did in my tutorial but my tutorial works but this doesn't

Pls spoilerx, millerules apart from app: menu, what other ways can one use to add options to the navigation view

Thanks

Let's see the menu file you created.

And also leave the tutorial for few hours, go learn the AndroidX Navigation Library in detail then come back to your code. Try and use the library's core functions they make things easier.

In addition try and learn about View Binding (or better the Data Binding class) it makes your code cleaner. This may be much at first, but if you going to learn, learn the right and modern way bcs lots of updates these days.

Etinosa1234:
I tested everything thing in the code and apparently the problem is the bolded

Pls spoilerx, millerules apart from app: menu, what other ways can one use to add options to the navigation view

Thanks

Millerules:
Let's see the menu file you created.

And also leave the tutorial for few hours, go learn the AndroidX Navigation Library in detail then come back to your code. Try and use the library's core functions they make things easier.

In addition try and learn about View Binding (or better the Data Binding class) it makes your code cleaner. This may be much at first, but if you going to learn, learn the right and modern way bcs lots of updates these days.

this is the menu file

<menu xmlns:android="http://schemas.android.com/apk/res/android">
<group android:checkableBehavior="single">
<item
android:id="@+id/nav_home"
android:checked="true"
android:icon="@android:drawable/ic_menu_info_details"
android:title="@string/home"/>
<item
android:id="@+id/nav_practice"
android:icon="@android:drawable/ic_menu_edit"
android:title="@string/practice"/>
<item
android:id="@+id/nav_bookmarks"
android:title="@string/bookmark"
android:icon="@android:drawable/ic_menu_save"/>
</group>
<item android:title="@string/prefer"/>
<menu>
<item
android:id="@+id/nav_settings"
android:title="@string/settings"
android:icon="@android:drawable/ic_menu_help"/>

<item
android:id="@+id/nav_rate"
android:title="@string/rate"/>
</menu>

</menu>

also its my personal project that i am building... I am through with the first page already.. just stuck with the options

Thanks boss

hello it's spoilerx, my account is blocked from commenting here , am not sure why.


go to the style file , change your theme parent from an Appcompat theme to a material component theme.

I put the full details last night, not sure y I got banned for it.

MikeMicheal:
DONT BE A LAZY MAN!

DELETE EVERYTHING AND START ALLOVER!

This is terrible advice

Etinosa1234 I think this should be the solution. Nice one bro ��

dirtydaya:
hello it's spoilerx, my account is blocked from commenting here , am not sure why.


go to the style file , change your theme parent from an Appcompat theme to a material component theme.

I put the full details last night, not sure y I got banned for it.

Etinosa1234:
Pls help... i have searched stack overflow and no answer works

cc: spoilerx parkervero millerules

Let me see the fragment class you want to inflate in the main activity.

From the fragment, it seems like you didn't properly handle the new instance() method.

Better still, did you add design or material design library to your build?

dirtydaya:
hello it's spoilerx, my account is blocked from commenting here , am not sure why.


go to the style file , change your theme parent from an Appcompat theme to a material component theme.

I put the full details last night, not sure y I got banned for it.

I have already changed it and it's still the same error...

I'll have to look for another way to add menu options to the Navigation view ... Thanks

Millerules

parkervero:


Let me see the fragment class you want to inflate in the main activity.

From the fragment, it seems like you didn't properly handle the new instance() method.

Better still, did you add design or material design library to your build?

I've not done anything to the fragment yet

Etinosa1234:


I have already changed it and it's still the same error...

I'll have to look for another way to add menu options to the Navigation view ... Thanks

Millerules

please share the content of your styles xml file

dirtydaya:


please share the content of your styles xml file

This is it sir

<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.MaterialComponents.DayNight.NoActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_200</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/white</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_700</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
</style>
</resources>

Etinosa1234:


I've not done anything to the fragment yet

Check the build to see if Androidx.material library is added, and if it does not, add it.

Etinosa1234:


I have already changed it and it's still the same error...

I'll have to look for another way to add menu options to the Navigation view ... Thanks

Millerules

the error is an inflateException which means it has to do with the layout xml

android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

I think this is where the error is

change it to "@style/ToolbarTheme"

then edit the styles.xml resource

<style name="ToolbarTheme" parent="ThemeOverlay.MaterialComonents.Dark.ActionBar"></>

I wish you could share this project on GitHub, so I can look through it properly or do you have team viewer ? so I can work on your project remotely

And android studio doesn't give any error for the layout xml file

dirtydaya:
I wish you could share this project on GitHub, so I can look through it properly or do you have team viewer ? so I can work on your project remotely

And android studio doesn't give any error for the layout xml file

I tried opening a GitHub account but it didn't work..

Besides I used another means to add options to the navigation viewer using
Menu menu = nav.getMenu()
SubMenu men = menu.add("String".)
men.add("Another String".);
but it's not responding to clicks