Error inflating class com.google.android.material.appbar.AppBarLayout

问题

I have bellow xml:

<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawerLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <com.google.android.material.appbar.AppBarLayout
            android:id="@+id/appBarLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            app:elevation="0dp">
            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbarMainActivity"
                style="@style/CustomToolbar"
                android:background="@color/biscay"
                app:layout_scrollFlags="scroll|enterAlways">

                <RelativeLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <ImageButton
                        android:id="@+id/icon_drawer_imagebutton"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_alignParentRight="true"
                        android:layout_centerVertical="true"
                        android:background="@null"
                        android:paddingLeft="10dp"
                        android:paddingRight="10dp"
                        app:srcCompat="@drawable/ic_drawer" />

                    <RelativeLayout
                        android:gravity="center_horizontal"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                     android:layout_toLeftOf="@+id/icon_drawer_imagebutton">

                        <ImageButton
                            android:id="@+id/icon_logo_imagebutton"
                            android:layout_width="@dimen/size_logo"
                            android:layout_height="@dimen/size_logo"
                            android:layout_alignParentRight="true"
                            android:layout_centerVertical="true"
                            android:adjustViewBounds="true"
                            android:background="@null"
                            android:scaleType="fitXY"
                            app:srcCompat="@drawable/ic_logo_white" />

                        <TextView
                            android:id="@+id/nameUniversity_textview"
                            android:layout_width="wrap_content"
                            android:layout_height="match_parent"
                            android:layout_centerHorizontal="true"
                            android:layout_centerVertical="true"
                            android:layout_marginLeft="10dp"
                            android:layout_marginRight="10dp"
                            android:textSize="18sp"
                         android:layout_toLeftOf="@+id/icon_logo_imagebutton"
                            android:gravity="center_vertical"
                            android:text="@string/nameUniversity"
                            android:textColor="@color/colorTextLight"
                            android:textStyle="bold" />
                    </RelativeLayout>
                </RelativeLayout>
            </androidx.appcompat.widget.Toolbar>
        </com.google.android.material.appbar.AppBarLayout>

        <com.google.android.material.tabs.TabLayout
            android:id="@+id/tabsMainActivity"
            style="@style/CustomTabLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/appBarLayout"
            app:tabGravity="fill"
            app:tabMode="fixed" />

        <androidx.viewpager.widget.ViewPager
            android:id="@+id/viewpagerMainActivity"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@+id/tabsMainActivity"
            android:background="@color/colorTextLight" />
    </RelativeLayout>
    <!-- Navigation Drawer-->
    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/drawerRecyclerView"
        android:layout_width="300dp"
        android:layout_height="match_parent"
        android:layout_gravity="right"
        android:background="@color/gallery" />
</androidx.drawerlayout.widget.DrawerLayout>

And my library is:

implementation 'com.android.support.constraint:constraint-layout:2.0.0-alpha2'
implementation 'com.android.support:exifinterface:28.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'
implementation 'com.android.support:cardview-v7:28.0.0'
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support:support-vector-drawable:28.0.0'
implementation 'com.android.support:multidex:1.0.3'

But get me bellow error:

Caused by: android.view.InflateException: Binary XML file line #12: Binary XML file line #12: Error inflating class com.google.android.material.appbar.AppBarLayout
Caused by: android.view.InflateException: Binary XML file line #12: Error inflating class com.google.android.material.appbar.AppBarLayout
Caused by: java.lang.reflect.InvocationTargetException

回答1:

You're using AndroidX tags-components which you already have AppCompat dependencies. This will cause other issues too. Go with the Refactor -> Migrate to AndoridX and add the mentioned dependency for the material components too.

In your build.gradle dependencies:

implementation 'com.google.android.material:material:1.0.0'

It's coming from Material components -> com.google.android.material as you can see so, that's why you get the error.

Remember to update the gradle in the other build.gradle too:

classpath 'com.android.tools.build:gradle:3.2.0'

来源：https://stackoverflow.com/questions/52688994/error-inflating-class-com-google-android-material-appbar-appbarlayout