How to enable multidexing with the new Android Multidex support library

Question

I want to use the new Multidex support library to break the method limit for one of my apps    With Android Lollipop Google introduced a multidex support library that makes it easy to multidex    What steps are needed to use this library and to build my app with multidex support

User · Answer

All answers above are awesome

Also add this otherwise your app will crash like mine without any reason

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

User · Answer

If you want to enable multi-dex in your project then just go to gradle builder   and add this in your dependencie    dependencies      compile  com android support multidex 1 0 0     then you have to add    defaultConfig       minSdkVersion 14 targetSdkVersion 21         Enabling multidex support  multiDexEnabled true    Then open a class and extand it to Application If your app uses extends the Application class  you can override the oncrete   method and call     MultiDex install this     to enable multidex   and finally add into your manifest    lt  xml version  1 0  encoding  utf-8   gt    lt manifest xmlns android  http   schemas android com apk res android      package  com example android multidex myapplication  gt       lt application             android name  android support multidex MultiDexApplication  gt             lt  application gt    lt  manifest gt

User · Answer

Here is an up-to-date approach as of October 2020  with Android X  This comes from Android s documentation   quot Enable multidex for apps with over 64K methods  quot  For minSdk  gt   21 You do not need to do anything  All of these devices use the Android RunTime  ART  VM  which supports multidex natively  For minSdk  lt  21 In your module-level build gradle  ensure that the following configurations are populated  android       defaultConfig           multiDexEnabled true          dependencies       implementation  androidx multidex multidex 2 0 1     You need to install explicit multidex support  The documentation includes three methods to do so  and you have to pick one  For example  in your src main AndroidManifest xml  you can declare MultiDexApplication as the application name   lt manifest package  quot com your package quot            xmlns android  quot http   schemas android com apk res android quot  gt       lt application android name  quot androidx multidex MultiDexApplication quot    gt   lt  manifest gt

User · Answer

Step 1  Change build grade  defaultConfig                  Enabling multidex support      multiDexEnabled true    dependencies               compile  com android support multidex 1 0 0      Step 2  Setting on the Application class  public class MyApplication extends Application        Override     public void onCreate             super onCreate            MultiDex install this             Step 3  Change grade properties  org gradle jvmargs -Xmx2048m -XX MaxPermSize 512m -XX  HeapDumpOnOutOfMemoryError -Dfile encoding UTF-8   It will work   Thanks

User · Answer

First you should try with Proguard  This clean all code unused   android       compileSdkVersion 25     buildToolsVersion  25 0 2       defaultConfig           minSdkVersion 16         targetSdkVersion 25         versionCode 1         versionName  1 0           testInstrumentationRunner  android support test runner AndroidJUnitRunner          multiDexEnabled true           buildTypes           release               minifyEnabled true             proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro

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Add to AndroidManifest xml   android name  android support multidex MultiDexApplication     OR  MultiDex install this     in your custom Application s attachBaseContext method  or your custom Application extend MultiDexApplication  add multiDexEnabled   true in your build gradle  defaultConfig       multiDexEnabled true    dependencies       compile  com android support multidex 1 0 0

User · Answer

With androidx  the classic support libraries no longer work  Simple solution is to use following code In your build gradle file android                defaultConfig                          multiDexEnabled true              dependencies                 implementation  androidx multidex multidex 2 0 1     And in your manifest just add name attribute to the application tag  lt manifest     gt       lt application         android name  quot androidx multidex MultiDexApplication quot                    gt                                 lt  application gt   lt  manifest gt   If your application is targeting API 21 or above multidex is enables by default  Now if you want to get rid of many of the issues you face trying to support multidex - first try using code shrinking by setting minifyEnabled true

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The following steps are needed to start multi dexing    Add android-support-multidex jar to your project  The jar can be found in your Android SDK folder  sdk extras android support multidex library libs  Now you either let your apps application class extend MultiDexApplication  public class MyApplication extends MultiDexApplication   or you override attachBaseContext like this   protected void attachBaseContext Context base     super attachBaseContext base    MultiDex install this       I used the override approach because that does not mess with the class hierarchy of your application class   Now your app is ready to use multi dex  The next step is to convince gradle to build a multi dexed apk  The build tools team is working on making this easier  but for the moment you need to add the following to the android part of your apps build gradle     dexOptions         preDexLibraries   false        And the following to the general part of your apps build gradle  afterEvaluate      tasks matching         it name startsWith  dex        each   dx - gt        if  dx additionalParameters    null             dx additionalParameters     --multi-dex           else            dx additionalParameters     --multi-dex                   More info can be found on Alex Lipovs blog

User · Answer

Multi Dex java  public class Multi Dex extends Application        Override     protected void attachBaseContext Context base            super attachBaseContext base           MultiDex install this

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In your build gradle add this dependency    compile  com android support multidex 1 0 1    again in your build gradle file add this line to defaultConfig block   multiDexEnabled true   Instead of extending your application class from Application extend it from MultiDexApplication   like    public class AppConfig extends MultiDexApplication     now you re good to go  And in case you need it  all MultiDexApplication does is  public class MultiDexApplication extends Application        Override     protected void attachBaseContext Context base            super attachBaseContext base           MultiDex install this

User · Answer

just adding this snipped in the build gradle also works fine  android      compileSdkVersion 22    buildToolsVersion  23 0 0        defaultConfig            minSdkVersion 14   lower than 14 doesn t support multidex          targetSdkVersion 22                Enabling multidex support             multiDexEnabled true

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SIMPLY  in order to enable multidex  you need to      android   compileSdkVersion 21 buildToolsVersion  21 1 0   defaultConfig               minSdkVersion 14     targetSdkVersion 21                 Enabling multidex support      multiDexEnabled true          dependencies   implementation  com android support multidex 1 0 0      also you must change your manifest file  In your manifest add the MultiDexApplication class from the multidex support library to the application element like this    lt  xml version  1 0  encoding  utf-8   gt   lt manifest xmlns android  http   schemas android com apk res android     package  com example android multidex myapplication  gt      lt application                   android name  android support multidex MultiDexApplication  gt                 lt  application gt   lt  manifest gt

User · Answer

build gradle  multiDexEnabled true implementation  androidx multidex multidex 2 0 1    AndroidManifest xml   lt application     android name  androidx multidex MultiDexApplication

User · Answer

Edit   Android 5 0  API level 21  and higher uses ART which supports multidexing  Therefore  if your minSdkVersion is 21 or higher  the multidex support library is not needed     Modify your build gradle   android       compileSdkVersion 22     buildToolsVersion  23 0 0            defaultConfig                minSdkVersion 14   lower than 14 doesn t support multidex              targetSdkVersion 22                  Enabling multidex support               multiDexEnabled true               dependencies       implementation  com android support multidex 1 0 3      If you are running unit tests  you will want to include this in your Application class   public class YouApplication extends Application         Override     protected void attachBaseContext Context base            super attachBaseContext base           MultiDex install this              Or just make your application class extend MultiDexApplication  public class Application extends MultiDexApplication        For more info  this is a good guide

[android] How to enable multidexing with the new Android Multidex support library

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