小编paw*_*gio的帖子

这是Int在Kotlin中声明具有指定大小的二维数组的最简单方法吗？

val board = Array(n, { IntArray(n) })

我使用以下初始化:

val entityClass = javaClass<Class<T>>()
var entity = entityClass.newInstance().newInstance()

但它是错的,并导致IllegalAccessException上java.lang.Class.newInstance(Class.java:1208)

绑定服务是否更好FragmentActivity:

bindService(Intent, ServiceConnection, int);

或者Fragment:

getActivity().bindService(Intent, ServiceConnection, int);

什么是更好的做法？

我定义了自己的味道并设置了sourceSet:

sourceSets {    
    main.java.srcDirs += 'src/main/kotlin'           // WORKS
    myflavor.java.srcDirs += 'src/myflavor/kotlin'   // DOESN'T WORK
}

这是我的项目结构:

但是......我收到以下错误:

java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{xyz/xyz.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "xyz.MainActivity" on path: DexPathList[[zip file "/data/app/xyz/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
        at android.app.ActivityThread.access$800(ActivityThread.java:144)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:135)
        at android.app.ActivityThread.main(ActivityThread.java:5221)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
 Caused by: java.lang.ClassNotFoundException: Didn't find class "xyz.MainActivity" on path: DexPathList[[zip file "/data/app/xyz/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
        at android.app.Instrumentation.newActivity(Instrumentation.java:1065)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2199) …