BottomSheetBehavior not in androidX libraries

Question

I was using the BottomSheetBehavior with the original support library:

implementation 'com.android.support:design:27.1.1'

When I migrated to use the new androidx libraries though the BottomSheetBehavior is missing. The mapping from the above support library isn't in the AndroidX Refactoring List either, but the migration tool removed it.

What am I missing to include the BottomSheetBehavior with the new androidx libraries.

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.google.android.material:material:1.0.0-beta01'
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

    // ReactiveX
    implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
    implementation 'io.reactivex.rxjava2:rxkotlin:2.2.0'

    implementation 'com.android.support:design:28.1.0'

    // Android Compatability Libraries
    // Version: https://developer.android.com/topic/libraries/support-library/refactor
    implementation 'androidx.appcompat:appcompat:1.0.0-beta01'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha1'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0-beta01'
    implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0-beta01'
    implementation 'androidx.recyclerview:recyclerview:1.0.0-beta01'

    // Android Navigation Component
    // Check here for updated version info - will move to androidx soon.
    // https://developer.android.com/topic/libraries/architecture/adding-components
    def nav_version = "1.0.0-alpha04"

    // use -ktx for Kotlin
    implementation "android.arch.navigation:navigation-fragment-ktx:$nav_version"
    implementation "android.arch.navigation:navigation-ui-ktx:$nav_version"
    androidTestImplementation "android.arch.navigation:navigation-testing-ktx:$nav_version"

    // Testing
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.0-alpha4'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha4'
}

score 235 · Accepted Answer · answered Jul 31 '18 at 19:06

It turns out that the refactor tool in Android Studio Refactor > Migrate to AndroidX didn't correctly migrate the XML for the BottomSheetBehaviour.

The old location was android.support.design.widget.BottomSheetBehavior, and was not modified by the migration tool. The original XML was:

<fragment
    android:id="@+id/player_bottom_sheet_fragment"
    android:name="app.rxsongbrowsertrials.ui.player.PlayerToggleFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:behavior_hideable="false"
    app:behavior_peekHeight="56dp"
    app:layout_behavior="android.support.design.widget.BottomSheetBehavior"
    />

The new location is com.google.android.material.bottomsheet.BottomSheetBehavior, so the layout needs to become:

<fragment
    android:id="@+id/player_bottom_sheet_fragment"
    android:name="app.rxsongbrowsertrials.ui.player.PlayerToggleFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:behavior_hideable="false"
    app:behavior_peekHeight="56dp"
    app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior"
    />

I spent all day on this one. Hopefully this bubbled up for people to discover more easily. — AdamHurwitz, Oct 28 '18 at 06:56
In the last update from AS still not corrected this error in the AndroidX migration. Thanks — Genaut, Sep 06 '19 at 17:20

score 59 · Answer 2 · answered Oct 21 '18 at 15:19

59

You could also replace

    app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior"
or 
    app:layout_behavior="android.support.design.widget.BottomSheetBehavior"

by

app:layout_behavior="@string/bottom_sheet_behavior"

answered Oct 21 '18 at 15:19

Jose M Lechon

5,766
6
44
60

1

My project, generated from an Android Studio template, didn't have `@string/bottom_sheet_behavior`. I think I was able to pull it in by adding `implementation "com.google.android.material:material:1.1.0-alpha04"` to my `app/build.gradle` – Michael Osofsky Mar 21 '19 at 19:11

Gabriele Mariotti · Answer 3 · 2019-11-25T21:49:20.070

You have to import the Material Components Library provided by Google.

Material Components for Android is a drop-in replacement for Android's Design Support Library.

Add in your build.gradle:

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

Then use the class com.google.android.material.bottomsheet.BottomSheetBehavior.

In your layout you can use the attribute:

    app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior"
    ..>

or

app:layout_behavior="@string/bottom_sheet_behavior"

score 2 · Answer 4 · answered Apr 09 '22 at 11:33

2

For R class

com.google.android.material.R.id.design_bottom_sheet

instead of

android.support.design.R.id.design_bottom_sheet

answered Apr 09 '22 at 11:33

Aziz

1,976
20
23

score 1 · Answer 5 · answered Jan 25 '21 at 00:28

I got this error message:

Didn't find class "com.google.android.material.bottomsheet.BottomSheetBehaviour"

The only way to solve this was to change the XML:

Change:

app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior"

Change to:

app:layout_behavior="@string/bottom_sheet_behavior"

This solved the problem

BottomSheetBehavior not in androidX libraries

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