Error inflating class android.support.design.widget.TabLayout

Question

I\'m trying to create a menu tab based on Google\'s \"material design\" using Eclipse, but I got an error:

Error inflating class android.support.desig

Answer 1

I have a bit more in my Logcat. You can see at the end that there is clear explanation:

You need to use a Theme.AppCompat theme (or descendant) with the design library.

android.view.InflateException: Binary XML file line #6: Error inflating class android.support.design.widget.TabLayout at android.view.LayoutInflater.createView(LayoutInflater.java:633) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743) at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) at android.view.LayoutInflater.inflate(LayoutInflater.java:504) at android.view.LayoutInflater.inflate(LayoutInflater.java:414) at pl.acme_gliwice.smieciarka.nowe.ekran_glowny.MainTrasyFragment.onCreateView(MainTrasyFragment.java:44) at android.support.v4.app.Fragment.performCreateView(Fragment.java:2337) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1418) at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1739) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1808) at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:799) at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2579) at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2366) at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2321) at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2228) at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:699) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5376) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.newInstance(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:288) at android.view.LayoutInflater.createView(LayoutInflater.java:607) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)  at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)  at android.view.LayoutInflater.inflate(LayoutInflater.java:504)  at android.view.LayoutInflater.inflate(LayoutInflater.java:414)  at pl.acme_gliwice.smieciarka.nowe.ekran_glowny.MainTrasyFragment.onCreateView(MainTrasyFragment.java:44)  at android.support.v4.app.Fragment.performCreateView(Fragment.java:2337)  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1418)  at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1739)  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1808)  at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:799)  at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2579)  at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2366)  at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2321)  at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2228)  at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:699)  at android.os.Handler.handleCallback(Handler.java:739)  at android.os.Handler.dispatchMessage(Handler.java:95)  at android.os.Looper.loop(Looper.java:135)  at android.app.ActivityThread.main(ActivityThread.java:5376)  at java.lang.reflect.Method.invoke(Native Method)  at java.lang.reflect.Method.invoke(Method.java:372)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)  Caused by: java.lang.IllegalArgumentException: You need to use a Theme.AppCompat theme (or descendant) with the design library. at android.support.design.widget.ThemeUtils.checkAppCompatTheme(ThemeUtils.java:33) at android.support.design.widget.TabLayout.(TabLayout.java:298) at android.support.design.widget.TabLayout.(TabLayout.java:292)

All this style trick examples above are not exactly true.

We have 2 scenarios:

1) Our TabLayout is in the activity. If that's the case, we need to set the theme of this activity to AppCompat theme. First we need to define such theme in style.xml (it doesn't have to be 21 version).

<style name="TabAppTheme" parent="Theme.AppCompat.Light.DarkActionBar">        
</style>

Then we can define the activity theme in manifest file.

<activity
    android:name=".MyTabActivity"
    android:theme="TabAppTheme"
/>

We don't need to do anything with our layout.xml

2) Our TabLayout is inside the fragment

Similar situation but it's harder to change the theme.

First we define theme as above. Then we need to change the theme for just our TabFragment. To do this our ActivityThatHoldsTheFragment must not have a theme set to it in the manifest. It can inherit it from the application theme but can't have it set directly.

Then we have to change fragment theme in OnCreateView of this fragment:

final Context contextThemeWrapper = new ContextThemeWrapper(getActivity(), R.style.TabAppTheme);
LayoutInflater localInflater = inflater.cloneInContext(contextThemeWrapper);
View view = localInflater.inflate(R.layout.fragment_main_trasy, container, false);

Whole fragment onCreateView can looks like this:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // create ContextThemeWrapper from the original Activity Context with the custom theme
    final Context contextThemeWrapper = new ContextThemeWrapper(getActivity(), R.style.TabAppTheme);
    // clone the inflater using the ContextThemeWrapper
    LayoutInflater localInflater = inflater.cloneInContext(contextThemeWrapper);

    View view = localInflater.inflate(R.layout.fragment_main_trasy, container, false);
    tabLayout = (TabLayout) view.findViewById(R.id.tabs);
    viewPager = (ViewPager) view.findViewById(R.id.pager);
    mAdapter = new TabFragment.MyAdapter(getChildFragmentManager());
    viewPager.setAdapter(mAdapter);
    tabLayout.setupWithViewPager(viewPager);

    return view;
}

Answer 2

Don't know if this relates to your problem. I changed tags of TabLayout and ViewPager to ones that correspond to ones on this page: https://material.io/develop/android/components/tab-layout/

Here is my code from my app, which made errors go away:

<com.google.android.material.tabs.TabLayout
    android:id="@+id/sliding_tabs"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:tabMode="fixed"/>

<androidx.viewpager.widget.ViewPager
    android:id="@+id/viewpager"
    android:layout_width="match_parent"
    android:layout_height="0px"
    android:layout_weight="1"
    android:background="@android:color/white" />

Answer 3

I was also getting same error. I resolve the problem by replacing

Getting error in this code

<android.support.design.widget.TabLayout
    android:id="@+id/tab_layout"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:background="?attr/colorPrimary"
    app:layout_constraintEnd_toEndOf="parent"
    app:tabMode="scrollable"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="@+id/viewpager" />

<android.support.v4.view.ViewPager
    android:id="@+id/viewpager"
    android:layout_width="0dp"
    android:layout_height="0dp"

    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

---

Use This code to solved above problem mentioned

<com.google.android.material.tabs.TabLayout
    android:id="@+id/tab_layout"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginBottom="4dp"
    android:background="?attr/colorPrimary"
    app:layout_constraintBottom_toTopOf="@+id/viewpager"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<androidx.viewpager.widget.ViewPager
    android:id="@+id/viewpager"
    android:layout_width="wrap_content"
    android:layout_height="0dp"
    android:layout_marginEnd="5dp"
    android:layout_marginBottom="3dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/tab_layout" />

**If you are using androidx than need to change android.support.design.widget.TabLayout to com.google.android.material.tabs.TabLayout **

Answer 4

I also faced similar issue. After some research on issue I find the solution. Add another style resource for your tablayout.

I have described it on my blog also.

http://www.geeksmember.blogspot.in/2015/10/errorerror-inflating-class.html

Add this to your values-v21/styles.xml. If you don't have values-v21 folder create one in app/res folder. And then create a styles.xml file in that folder.

    <resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="AppTheme.Base"/>
    <!-- inherit from the material theme -->
    <style name="AppTheme.Base" parent="android:Theme.Material">
        <!-- colorPrimary is used for the default action bar background -->
        <item name="android:colorPrimary">#3F51B5</item>

        <!-- colorPrimaryDark is used for the status bar -->
        <item name="android:colorPrimaryDark">#303F9F</item>

        <!-- colorAccent is used as the default value for colorControlActivated
             which is used to tint widgets -->
        <item name="android:colorAccent">#FF4081</item>
    </style>

    <style name="MyCustomTabLayout" parent="Widget.Design.TabLayout">
        <item name="tabIndicatorColor">#FF4081</item>
    </style>
</resources>

And then add custom style attribute to your tablayout.

<android.support.design.widget.TabLayout
        android:id="@+id/sliding_tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        style="@style/MyCustomTabLayout"
/>

I also faced the same problem and this works like a charm.

Reference: https://code.google.com/p/android/issues/detail?id=175582