[MaterialButton] android.view.InflateException:

Description: I’m trying to design a button for my view holder, but the application throws an exception. E/ThemeUtils: View class com.google.android.material.button.MaterialButton is an AppCompat widget that can only be used with a Theme.AppCompat theme (or descendant).

android.view.InflateException: Binary XML file line 149 in

Caused by: java.lang.IllegalArgumentException: The style on this component requires your app theme to be Theme.MaterialComponents (or a descendant).

Source code:

<com.google.android.material.button.MaterialButton
                    android:id="@+id/call"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="24dp"
                    android:layout_marginEnd="12dp"
                    android:onClick="@{()->item.onClickCall()}"
                    android:text="@string/call"
                    android:textColor="@color/colorPrimary"
                    app:backgroundTint="@color/white"
                    app:cornerRadius="6dp"
                    app:icon="@drawable/ic_call"
                    app:iconTint="@color/colorPrimary"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintTop_toBottomOf="@+id/text_view_desc"
                    app:strokeColor="@color/colorPrimary"
                    app:strokeWidth="1dp" />

Android API version: 30

Material Library version: implementation “com.google.android.material:material:1.2.1”

Device: Pixel 2 XL

[gabrielemariotti]

The ApplicationContext has not the app theme.

[amjad-alwareh]

Wow, good to know that!!! That means I need the activity/fragment context. Many thanks bro. 😄