[DJI-SDK][Android] NEW v3 SDK 演示无法运行
[DJI-SDK][Android] NEW v3 SDK Demo is not working
我从 github (https://github.com/dji-sdk/Mobile-SDK-Android) 下载了新的 SDK 演示 (v3) 并使用 Android Studio (1.5.1) 打开项目。
导入进行得非常顺利，一切看起来都很好。
除了 dji 应用程序密钥外，我没有对代码或设置进行任何更改，但是当我尝试启动应用程序时（在带有 Android 6 的 Nexus 9 上）我收到以下消息在 android 监视器内：
01-13 21:57:06.052 com.dji.sdk.sample I/art: Late-enabling -Xcheck:jni
01-13 21:57:06.129 com.dji.sdk.sample D/FPVController: try to load libstlport_shared.so
01-13 21:57:06.132 com.dji.sdk.sample D/FPVController: try to load libdjivideo.so
01-13 21:57:06.139 com.dji.sdk.sample E/linker: /data/app/com.dji.sdk.sample-1/lib/arm/libdjivideo.so: has text relocations
01-13 21:57:06.139 com.dji.sdk.sample E/FPVController: Couldn't load lib
01-13 21:57:06.192 com.dji.sdk.sample E/art: No implementation found for int dji.midware.natives.FPVController.native_init(java.lang.Object) (tried Java_dji_midware_natives_FPVController_native_1init and Java_dji_midware_natives_FPVController_native_1init__Ljava_lang_Object_2)
01-13 21:57:06.192 com.dji.sdk.sample D/AndroidRuntime: Shutting down VM
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: java.io.FileNotFoundException: /storage/emulated/0/DJI/com.dji.sdk.sample/LOG/CRASH/crash-2016-01-13-21-57-06.txt: open failed: ENOENT (No such file or directory)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at libcore.io.IoBridge.open(IoBridge.java:452)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:87)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:127)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:116)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at dji.publics.b.f.b(Unknown Source)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at dji.publics.b.f.a(Unknown Source)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at dji.publics.b.f.uncaughtException(Unknown Source)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at libcore.io.Posix.open(Native Method)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at libcore.io.IoBridge.open(IoBridge.java:438)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: ... 8 more
01-13 21:57:06.200 com.dji.sdk.sample E/DJICrashHandler: uncaughtException 2
01-13 21:57:06.200 com.dji.sdk.sample E/DJICrashHandler: uncaughtException 3
01-13 21:57:06.226 com.dji.sdk.sample I/onLoad: loaded onLoad.cpp :JNI_OnLoad() go to end
01-13 21:57:06.226 com.dji.sdk.sample D/GroudStation: load lib suc
01-13 21:57:06.234 com.dji.sdk.sample D/DJIGimbalParamInfoManager: readToMemory size = 19
01-13 21:57:06.300 com.dji.sdk.sample D/DJIFlycParamInfoManager: readToMemory size = 583
01-13 21:57:06.401 com.dji.sdk.sample E/DJICrashHandler: uncaughtException 4
01-13 21:57:06.402 com.dji.sdk.sample E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.dji.sdk.sample, PID: 3145 java.lang.UnsatisfiedLinkError: No implementation found for int dji.midware.natives.FPVController.native_init(java.lang.Object) (tried Java_dji_midware_natives_FPVController_native_1init and Java_dji_midware_natives_FPVController_native_1init__Ljava_lang_Object_2)
at dji.midware.natives.FPVController.native_init(Native Method)
at dji.midware.data.manager.P3.ServiceManager.<init>(Unknown Source)
at dji.midware.data.manager.P3.ServiceManager.getInstance(Unknown Source)
at dji.sdk.SDKManager.DJISDKManager.initParams(Unknown Source)
at dji.sdk.SDKManager.DJISDKManager.initSDKManager(Unknown Source)
at com.dji.sdk.sample.common.DJISampleApplication.onCreate(DJISampleApplication.java:71)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1013)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4707)
at android.app.ActivityThread.-wrap1(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
01-13 21:57:31.447 com.dji.sdk.sample I/Process: Sending signal. PID: 13145 SIG: 9
并且应用程序将直接在 android 平板电脑上关闭。
谁能帮助我并告诉我我做错了什么？为什么不能只下载并启动sdk demo？
提前致谢！
此致
请在DJI Developer User Center, it should be com.dji.sdk.sample. For more info, please check the DJI Android SDK Github Page上申请App Key时核对Identification Code，可以按照那里的指引进行操作。希望对您有所帮助！
问题是应用程序中的 Android 版本，因为 SDK 库是使用 android 级别 22 构建的，而应用程序是使用 android 级别 23 构建的。
将应用程序降为版本 22 后，该应用程序运行正常！
我从 github (https://github.com/dji-sdk/Mobile-SDK-Android) 下载了新的 SDK 演示 (v3) 并使用 Android Studio (1.5.1) 打开项目。 导入进行得非常顺利，一切看起来都很好。
除了 dji 应用程序密钥外，我没有对代码或设置进行任何更改，但是当我尝试启动应用程序时（在带有 Android 6 的 Nexus 9 上）我收到以下消息在 android 监视器内：
01-13 21:57:06.052 com.dji.sdk.sample I/art: Late-enabling -Xcheck:jni
01-13 21:57:06.129 com.dji.sdk.sample D/FPVController: try to load libstlport_shared.so
01-13 21:57:06.132 com.dji.sdk.sample D/FPVController: try to load libdjivideo.so
01-13 21:57:06.139 com.dji.sdk.sample E/linker: /data/app/com.dji.sdk.sample-1/lib/arm/libdjivideo.so: has text relocations
01-13 21:57:06.139 com.dji.sdk.sample E/FPVController: Couldn't load lib
01-13 21:57:06.192 com.dji.sdk.sample E/art: No implementation found for int dji.midware.natives.FPVController.native_init(java.lang.Object) (tried Java_dji_midware_natives_FPVController_native_1init and Java_dji_midware_natives_FPVController_native_1init__Ljava_lang_Object_2)
01-13 21:57:06.192 com.dji.sdk.sample D/AndroidRuntime: Shutting down VM
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: java.io.FileNotFoundException: /storage/emulated/0/DJI/com.dji.sdk.sample/LOG/CRASH/crash-2016-01-13-21-57-06.txt: open failed: ENOENT (No such file or directory)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at libcore.io.IoBridge.open(IoBridge.java:452)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:87)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:127)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:116)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at dji.publics.b.f.b(Unknown Source)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at dji.publics.b.f.a(Unknown Source)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at dji.publics.b.f.uncaughtException(Unknown Source)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at libcore.io.Posix.open(Native Method)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: at libcore.io.IoBridge.open(IoBridge.java:438)
01-13 21:57:06.199 com.dji.sdk.sample W/System.err: ... 8 more
01-13 21:57:06.200 com.dji.sdk.sample E/DJICrashHandler: uncaughtException 2
01-13 21:57:06.200 com.dji.sdk.sample E/DJICrashHandler: uncaughtException 3
01-13 21:57:06.226 com.dji.sdk.sample I/onLoad: loaded onLoad.cpp :JNI_OnLoad() go to end
01-13 21:57:06.226 com.dji.sdk.sample D/GroudStation: load lib suc
01-13 21:57:06.234 com.dji.sdk.sample D/DJIGimbalParamInfoManager: readToMemory size = 19
01-13 21:57:06.300 com.dji.sdk.sample D/DJIFlycParamInfoManager: readToMemory size = 583
01-13 21:57:06.401 com.dji.sdk.sample E/DJICrashHandler: uncaughtException 4
01-13 21:57:06.402 com.dji.sdk.sample E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.dji.sdk.sample, PID: 3145 java.lang.UnsatisfiedLinkError: No implementation found for int dji.midware.natives.FPVController.native_init(java.lang.Object) (tried Java_dji_midware_natives_FPVController_native_1init and Java_dji_midware_natives_FPVController_native_1init__Ljava_lang_Object_2)
at dji.midware.natives.FPVController.native_init(Native Method)
at dji.midware.data.manager.P3.ServiceManager.<init>(Unknown Source)
at dji.midware.data.manager.P3.ServiceManager.getInstance(Unknown Source)
at dji.sdk.SDKManager.DJISDKManager.initParams(Unknown Source)
at dji.sdk.SDKManager.DJISDKManager.initSDKManager(Unknown Source)
at com.dji.sdk.sample.common.DJISampleApplication.onCreate(DJISampleApplication.java:71)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1013)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4707)
at android.app.ActivityThread.-wrap1(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
01-13 21:57:31.447 com.dji.sdk.sample I/Process: Sending signal. PID: 13145 SIG: 9
并且应用程序将直接在 android 平板电脑上关闭。 谁能帮助我并告诉我我做错了什么？为什么不能只下载并启动sdk demo？
提前致谢！ 此致
请在DJI Developer User Center, it should be com.dji.sdk.sample. For more info, please check the DJI Android SDK Github Page上申请App Key时核对Identification Code，可以按照那里的指引进行操作。希望对您有所帮助！
问题是应用程序中的 Android 版本，因为 SDK 库是使用 android 级别 22 构建的，而应用程序是使用 android 级别 23 构建的。
将应用程序降为版本 22 后，该应用程序运行正常！