Butterknife: Android X support

[xTheITx]

I've recently attempted to upgrade a project which uses Butterknife v8.8.1 to make use of the new Android X libraries by using the jetifier tool in Android Studio.

The project fails to compile as the generated _ViewBinding classes reference the old android.support.annotation. annotations which no longer exist.
There may also be additional issues I'm not aware of.

I was just wondering if there was a plan to migrate over to reference the new androidx package names in the generated code.

I'm not familiar with the Butterknife code, but let me know if there's anything I could contribute to the project to facilitate adding support.

Thank you for your time

[scarrie]

I got my app compiling by adding my own copies of the old package "android.support.annotation"s for @CallSuper and @UiThread.

@Retention(CLASS) @Target({METHOD,CONSTRUCTOR,TYPE,PARAMETER}) public @interface UiThread { }

@Retention(CLASS) @Target({METHOD}) public @interface CallSuper { }

Its a start, but then I hit further problems caused by this new jetifier process with other libraries. Guess we just have to be patient to wait for all these third party libraries to update.

[allidoiswarren]

I'll take a crack at this.

[JakeWharton]

Merged

[justinegeo96]

I'm sorry to say the error still persists.

[naturalwarren]

Can you paste the stack trace? Are you building against a JAR cut from master?

[ArunPandiyan]

It's from the import statement for the annotations which is found in the auto generated viewbinding files.

[k4dima]

repositories {
    maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
}
implementation 'com.jakewharton:butterknife:9.0.0-SNAPSHOT'
annotationProcessor 'com.jakewharton:butterknife-compiler:9.0.0-SNAPSHOT'

[danielwilson1702]

Um, in terms of production code how safe is this on a scale of 1-10 where 1="wtf are you doing this shouldn't be in the same room as a production app"

[feinstein]

repositories {
maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
}
implementation 'com.jakewharton:butterknife:9.0.0-SNAPSHOT'
annotationProcessor 'com.jakewharton:butterknife-compiler:9.0.0-SNAPSHOT'

This isn't working for me

[feinstein]

Ok, now it works, just be sure to put it inside the repositories inside allprojects and not the one inside buildscript

[adityathakar]

Is it safe to use 9.0.0-SNAPSHOT version in production code?

[SyedNabil]

In case like me you are confused about the gradle settings, you can find the complete solution to this as a stack overflow answer: https://stackoverflow.com/a/52308912/10224384

[kagile]

Please publish releases instead of snapshots or please leave a note. Shall I update README?

[siavash-sajjad]

Hello
i get error when use androidX

`* What went wrong:
Could not resolve all files for configuration ':View:debugAnnotationProcessorClasspath'.

Failed to transform file 'butterknife-compiler-8.8.1.jar' to match attributes {artifactType=processed-jar} using transform JetifyTransform
Failed to transform 'C:\Users\sadegh-Pc.gradle\caches\modules-2\files-2.1\com.jakewharton\butterknife-compiler\8.8.1\b2f4505a1babb7b7c11abbbf8ea4c90b18c3aeac\butterknife-compiler-8.8.1.jar' using Jetifier. Reason: The given artifact contains a string literal with a package reference 'android.support.v4.content' that cannot be safely rewritten. Libraries using reflection such as annotation processors need to be updated manually to add support for androidx.. (Run with --stacktrace for more details.)
`

how to fix it?

[aaronweihe]

@siavash-sajjad try butterknife 9+ first. then you'll need to add android.jetifier.blacklist=butterknife-compiler to gradle.properties to exclude butterknife compiler from being jetified

[mutwakilmo]

implementation 'com.jakewharton:butterknife:10.2.0'
annotationProcessor 'com.jakewharton:butterknife-compiler:10.2.0'

[ZakAnun]

implementation 'com.jakewharton:butterknife:10.2.0'
annotationProcessor 'com.jakewharton:butterknife-compiler:10.2.0'

It works for me, thanks~