Android 方法数超过64k、编译OOM、编译过慢解决方案。

Error:The number of method references in a .dex file cannot exceed 64K.
Error:Execution failed for task ':app:transformClassesWithDexForRelease'.
> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException:            java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: 

dependencies {
       ..... 
        compile 'com.android.support:multidex:1.0.1'
    }

  defaultConfig {
        applicationId "com.maiji.magkaredoctor"
        minSdkVersion 15
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
    }

    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        MultiDex.install(this) ;
    }

  dexOptions {
        incremental true
        javaMaxHeapSize "4g"
    }

tasks.whenTaskAdded { task ->
        if (task.name.contains("lint")
                || task.name == "clean"
                || task.name.contains("Aidl")
                || task.name.contains("mockableAndroidJar")
                || task.name.contains("UnitTest")
                || task.name.contains("AndroidTest")
                || task.name.contains("Ndk")
                || task.name.contains("Jni")
        ) {
            task.enabled = false
        }
    }