How to put specific classes into main DEX file?

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隐瞒了意图╮
隐瞒了意图╮ 2021-02-02 17:50

We found an issue on Amazon market that IAP doesn\'t work if it\'s receivers located not in main DEX file. The question is how to force gradle

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  • 2021-02-02 18:12

    I had the same problem. The main point was that you have to set "minSdkVersion 16" before "multiDexEnabled true" else your Application class could be placed in the second dex and app will crash on android lower 5.0

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  • 2021-02-02 18:29

    With Android Plugin for Gradle, Revision 2.2.0 (Released in September 2016) you can use multiDexKeepFile api

    android {
        buildTypes {
            debug {
                ...
                multiDexEnabled true
                multiDexKeepFile file('multidex_keep_file.txt')
            }
        }
    }
    

    Where multidex_keep_file.txt is file with single class per line which needs to be explicitly added to the main dex

     com/example/MyClass.class
     com/example/MyClass2.class
    

    You can also use multiDexKeepProguard to keep whole package

    -keep class com.example.** { *; }
    
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  • 2021-02-02 18:30

    Sergii Pechenizkyi's answar only keep some class in main dex , but not generate two dex. Add --minimal-main-dex to your builg.gradle. But this only solve below gradle1.5.0. You can use DexKnifePlugin to solve your problem.

    afterEvaluate {
        tasks.matching {
            it.name.startsWith('dex')
        }.each { dx ->
            if (dx.additionalParameters == null) {
                dx.additionalParameters = []
            }
        dx.additionalParameters += '--multi-dex'
        dx.additionalParameters += "--main-dex-list=class_files.txt" 
        dx.additionalParameters += '--minimal-main-dex'
        }
    }
    
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  • 2021-02-02 18:33

    No need to manually add multi-dex parameters to dex tasks.
    This can be automatically handled by the android plugin (since v0.14.0).

    Remove both the afterEvaluate section and compile('com.android.support:multidex:1.0.0') from your build.gradle, and instead add this:

    android {
       defaultConfig {
          ...
          multiDexEnabled = true
       }
    }
    

    The plugin is smart enough to package all the components (receivers among them) in main dex file.

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