Question

我对Android Studio SDK感到沮丧我正在eclipse上开发一段时间，但不时会努力迁移到Android Studio。我无法开始使用Android Studio。

我正在尝试在Android Studio上实现名为“DJI”的PlaybackDemo演示。我已经在Eclipse上工作，但Android Studio版本不起作用。应用程序按预期启动DJIAoaActivity然后启动DroneSelectionActivity，但是当您选择无人机的类型时，PlaybackProtocolActivity不会启动并且应用程序崩溃。我没有得到LogCat上的OnGetPermissionResult，期望来自PlaybackProtocolActivity。

我总是收到以下错误：

11-11 11:52:56.338 28334-28334/com.example.myapp E/CliptrayUtils: hideClipTrayIfNeeded() TextView is focused!! hideClipTray()
11-11 11:52:58.058 28334-28334/com.example.myapp E/FPVController: Couldn't load lib
11-11 11:52:58.058 28334-28334/com.example.myapp E/art: No implementation found for int dji.midware.natives.FPVController.native_setIsNeedPacked(boolean) (tried Java_dji_midware_natives_FPVController_native_1setIsNeedPacked and Java_dji_midware_natives_FPVController_native_1setIsNeedPacked__Z)
11-11 11:52:58.186 28334-30034/com.example.myapp E/art: No implementation found for long dji.midware.natives.GroudStation.native_hashFromString(byte[]) (tried Java_dji_midware_natives_GroudStation_native_1hashFromString and Java_dji_midware_natives_GroudStation_native_1hashFromString___3B)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime: FATAL EXCEPTION: main
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime: Process: com.example.myapp, PID: 28334
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime: java.lang.UnsatisfiedLinkError: No implementation found for int dji.midware.natives.FPVController.native_setIsNeedPacked(boolean) (tried Java_dji_midware_natives_FPVController_native_1setIsNeedPacked and Java_dji_midware_natives_FPVController_native_1setIsNeedPacked__Z)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at dji.midware.natives.FPVController.native_setIsNeedPacked(Native Method)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at dji.sdk.api.DJIDrone.connectToInspire(Unknown Source)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at dji.sdk.api.DJIDrone.connectToDrone(Unknown Source)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at com.example.myapp.PlaybackProtocolActivity.onInitSDK(PlaybackProtocolActivity.java:473)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at com.example.myapp.PlaybackProtocolActivity.onCreate(PlaybackProtocolActivity.java:154)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at android.app.Activity.performCreate(Activity.java:6020)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2259)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2366)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at android.app.ActivityThread.access$800(ActivityThread.java:149)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1284)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:102)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at android.os.Looper.loop(Looper.java:135)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:5290)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Native Method)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Method.java:372)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908)
11-11 11:52:58.230 28334-28334/com.example.myapp E/AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)

Answer 1

从日志中可以明显看出来。兴趣点：

java.lang.UnsatisfiedLinkError：找不到int的实现 dji.midware.natives.FPVController.native_setIsNeedPacked（布尔）（尝试过Java_dji_midware_natives_FPVController_native_1setIsNeedPacked 和Java_dji_midware_natives_FPVController_native_1setIsNeedPacked__Z）

我的猜测：您已经链接了x86本机库，但未链接到您的手机使用的处理器的本机库。本机库的诅咒：您需要为每个要运行的处理器预编译它们。

我不熟悉Eclipse上的NDK开发。如果您使用的是Android Studio，则每个处理器系列都会有单独的构建目标，另外还有一个用于构建并包含您已选择支持单个APK的所有处理器的本机库。 Eclipse可能有一些相同的概念来构建目标somwhere。

Answer 2

对我来说，我是一个Android Studio家伙，我遇到了一个更严重的问题。当我尝试在Android Studio中打开PlaybackDemo时，选择＆＃34; Android＆＃34;项目导航器上的选项卡，没有任何显示。似乎项目结构不正确并且适合Android Studio。

此外，我刚刚查看了PlaybackDemo，它说该演示是使用DJI SDK 2.4开发的吗？这比当前版本3.1.1还要旧。似乎有错误。

顺便说一下，如果您真的想在Android Studio上试用DJI Android SDK，我建议您查看这个导入DJI SDK to Android Studio教程，它对我有用。

Android Studio上的DJI Mobile SDK不起作用：FPVController：无法加载lib

2 个答案: