How to Implement Butterknife.Action in AndroidX?

Question

I am not able to use ButterKnife.Action in andoidx, can someone give any suugestions on how to use ButterKnife.Action in androidx?

classpath 'com.jakewharton:butterknife-gradle-plugin:9.0.0-rc2'

implementation 'com.jakewharton:butterknife:10.0.0' annotationProcessor 'com.jakewharton:butterknife-compiler:10.0.0'

Answer 1

If you migrate to AndroidX you must use:

in gradle

dependencies {

implementation "com.jakewharton:butterknife:10.2.0"

annotationProcessor "com.jakewharton:butterknife-compiler:10.2.0"

...}

in class when you have errors

if you use code like this:

• ButterKnife.apply(new View[]{ ivImageId,vgSubscribtionsId,vgSubscribersID},

              (view, value, index) -> view.setVisibility(value), View.INVISIBLE);
  

replace to this for work with AndroidX:

• butterknife.Action viewAction = (view, index) -> {

          view.setVisibility(View.INVISIBLE);
  
      };
      butterknife.ViewCollections.run(new View[]{ ivImageId,vgSubscribtionsId,vgSubscribersID} , viewAction );
  

Answer 2

I used the version 10.2.1 of ButterKnife . Follow these steps and the problem will be fixed.

//Step 1 : import this line

import butterknife.Action;

//Step 2 : in Scope Class

butterknife.Action viewAction = new Action() 
{

     @Override public void apply(@NonNull View view, int index) 
    {
    // do something.
    }

};

//Step 3 : ButterKnife.apply() in new version is deprecated . Replace to:

 butterknife.ViewCollections.run(listView , viewAction );

Answer 3

In Android studio Flamingo and above version below code working for butterknife library.

 1. add below code in build.gradle(:app) file 

    tasks.withType(JavaCompile).configureEach {
        options.fork = true
        options.forkOptions.jvmArgs += [
                '--add-opens=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED',
                '--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED',
                '--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED',
                '--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED',
                '--add-opens=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED',
                '--add-opens=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED',
                '--add-opens=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED',
                '--add-opens=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED',
                '--add-opens=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED',
                '--add-opens=jdk.compiler/com.sun.tools.javac.jvm=ALL-UNNAMED',
        ]
    }

 2. 
    android {
      ...
      // Butterknife requires Java 8.
      compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
      }
    }
    
    dependencies {
      implementation 'com.jakewharton:butterknife:10.2.3'
      annotationProcessor 'com.jakewharton:butterknife-compiler:10.2.3'
    }
    
     3. To use Butter Knife in a library, add the plugin to your buildscript:
    
    buildscript {
      repositories {
        mavenCentral()
        google()
      }
      dependencies {
        classpath 'com.jakewharton:butterknife-gradle-plugin:10.2.3'
      }
    }
    
     4. and then apply it in your module:
    apply plugin: 'com.android.library'
    apply plugin: 'com.jakewharton.butterknife'
    
     5. Now make sure you use R2 instead of R inside all Butter Knife annotations.
    class ExampleActivity extends Activity {
      @BindView(R2.id.user) EditText username;
      @BindView(R2.id.pass) EditText password;
    ...
    }

Answer 4

With androidX, you should use

import butterknife.ButterKnife;

and then do something like new butterknife.Action<View>()

Package name is now butterknife with a 'b' whereas before if was with a 'B'

I hope this will help ...