Put views in an Android layout with automatic line break

The Flexbox library from Google does exactly this:

Add the dependency to app/build.gradle:

dependencies {
    implementation 'com.google.android:flexbox:2.0.1'
}

Usage of the layout:

<com.google.android.flexbox.FlexboxLayout
    app:flexWrap="wrap">
        <View/>
        <View/>
        <View/>
        <View/>
</com.google.android.flexbox.FlexboxLayout>