为什么我的sdk里面没有DJIDrone.getDjiCamera().setDecodeType(DJICameraDecodeTypeDef.DecoderType.Software); setdecodetype方法都没有，sdk是2.4.1的

没有遇到过这个问题 请确保完完全全按照tutorial里面的code来写 另外 正确导入sdk两种方法：

• http://stackoverflow.com/questions/16952388/how-to-change-libs-directory-in-gradle/21284740#21284740
• http://stackoverflow.com/questions/17340240/jni-folder-in-android-studio

不过我还遇到个问题error不知楼主有没有遇到过 开始运行之后logcat不断报错。。。虽然目前不影响功能 10-21 21:47:15.282 17060-17086/com.freeman.djifpv W/System.err: at java.lang.Class.forName(Class.java:309) 10-21 21:47:15.283 17060-17086/com.freeman.djifpv W/System.err: at java.lang.Class.forName(Class.java:273) 10-21 21:47:15.283 17060-17086/com.freeman.djifpv W/System.err: at dji.midware.data.manager.P3.g.a(Unknown Source) 10-21 21:47:15.283 17060-17086/com.freeman.djifpv W/System.err: at dji.midware.data.manager.P3.g.d(Unknown Source) 10-21 21:47:15.283 17060-17086/com.freeman.djifpv W/System.err: at dji.midware.usb.P3.UsbAccessoryService$ParseOsdRunnable.run(Unknown Source) 10-21 21:47:15.283 17060-17086/com.freeman.djifpv W/System.err: at java.lang.Thread.run(Thread.java:818) 10-21 21:47:15.283 17060-17086/com.freeman.djifpv W/System.err: Caused by: java.lang.ClassNotFoundException: Didn't find class "dji.midware.data.model.P3.DataTransform_gGetPushCheckStatus" on path: DexPathList[[zip file "/data/app/com.freeman.djifpv-1/base.apk"],nativeLibraryDirectories=[/data/app/com.freeman.djifpv-1/lib/arm, /vendor/lib, /system/lib]] 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: at java.lang.ClassLoader.loadClass(ClassLoader.java:511) 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: at java.lang.ClassLoader.loadClass(ClassLoader.java:469) 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: ... 7 more 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: Suppressed: java.lang.ClassNotFoundException: dji.midware.data.model.P3.DataTransform_gGetPushCheckStatus 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: at java.lang.Class.classForName(Native Method) 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: at java.lang.BootClassLoader.findClass(ClassLoader.java:781) 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: at java.lang.BootClassLoader.loadClass(ClassLoader.java:841) 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: at java.lang.ClassLoader.loadClass(ClassLoader.java:504) 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: ... 8 more 10-21 21:47:15.284 17060-17086/com.freeman.djifpv W/System.err: Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: java.lang.ClassNotFoundException: dji.midware.data.model.P3.DataTransform_gGetPushCheckStatus 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at java.lang.Class.classForName(Native Method) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at java.lang.Class.forName(Class.java:309) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at java.lang.Class.forName(Class.java:273) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at dji.midware.data.manager.P3.g.a(Unknown Source) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at dji.midware.data.manager.P3.g.d(Unknown Source) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at dji.midware.usb.P3.UsbAccessoryService$ParseOsdRunnable.run(Unknown Source) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at java.lang.Thread.run(Thread.java:818) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: Caused by: java.lang.ClassNotFoundException: Didn't find class "dji.midware.data.model.P3.DataTransform_gGetPushCheckStatus" on path: DexPathList[[zip file "/data/app/com.freeman.djifpv-1/base.apk"],nativeLibraryDirectories=[/data/app/com.freeman.djifpv-1/lib/arm, /vendor/lib, /system/lib]] 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at java.lang.ClassLoader.loadClass(ClassLoader.java:511) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at java.lang.ClassLoader.loadClass(ClassLoader.java:469) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: ... 7 more 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: Suppressed: java.lang.ClassNotFoundException: dji.midware.data.model.P3.DataTransform_gGetPushCheckStatus 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at java.lang.Class.classForName(Native Method) 10-21 21:47:16.281 17060-17086/com.freeman.djifpv W/System.err: at java.lang.BootClassLoader.findClass(ClassLoader.java:781) 10-21 21:47:16.282 17060-17086/com.freeman.djifpv W/System.err: at java.lang.BootClassLoader.loadClass(ClassLoader.java:841) 10-21 21:47:16.282 17060-17086/com.freeman.djifpv W/System.err: at java.lang.ClassLoader.loadClass(ClassLoader.java:504) 10-21 21:47:16.282 17060-17086/com.freeman.djifpv W/System.err: ... 8 more 10-21 21:47:16.282 17060-17086/com.freeman.djifpv W/System.err: Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

楼主真是。。。我遇到的问题就直接来找你的帖子就行了:lol

呼叫万能的 DJI-Shirley 快去更新demo project啦！

我终。。。。终于解决了。。。。之前怎么搜都搜不到解决方案 搜了DJI SDK v2.4 以后马上就搜到了这帖子：http://forum.dev.dji.com/thread-31789-1-1.html原来v2.4更新后 djiGLSurfaceView.start();之前要加个DJIDrone.getDjiCamera().setDecodeType(DJICameraDecodeTypeDef.DecoderType.Software); 噢漏。。。。tutorial里似乎没有提及 demo project用的是eclipse老版本 当时我还差点想换掉整个SDK...

肉眼上看起来没什么问题……（如果你用的DjiSurfaceView_02在做显示） 如果是android的话，多重启几次看看……有时候android解码器自己会抽风

然后现在这个问题解决了 但是依旧黑屏 可是那几个按键都能用 拍照片录像什么的 我去sd卡里查看了一下都有相应的照片和视频真是好奇怪 我之前不知道用什么方法把demo project导入到AS(但不是gradle build) 运行后完全可行没有明显bug 可是自己在AS上按照教程做了一遍 应该是没有改核心的东西 怎么会有这个奇怪的问题呢 原谅我是个JAVA+AS新手。。。 这是我的FPVActivity里面的Oncreate method: protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fpv); DroneCode = 2; new Thread(){ public void run(){ try{ DJIDrone.checkPermission(getApplicationContext(), new DJIGeneralListener() { @Override public void onGetPermissionResult(int result) { if (result == 0) { // show success Log.e(TAG, "onGetPermissionResult =" + result); Log.e(TAG, "onGetPermissionResultDeion=" + DJIError.getCheckPermissionErrorDeion(result)); handler.sendMessage(handler.obtainMessage(SHOWDIALOG, DJIError.getCheckPermissionErrorDeion(result))); } else { // show errors Log.e(TAG, "onGetPermissionResult =" + result); Log.e(TAG, "onGetPermissionResultDeion=" + DJIError.getCheckPermissionErrorDeion(result)); handler.sendMessage(handler.obtainMessage(SHOWDIALOG, getString(R.string.demo_activation_error) + DJIError.getCheckPermissionErrorDeion(result) + "\n" + getString(R.string.demo_activation_error_code) + result)); } } }); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } }.start(); onInitSDK(DroneCode); DJIDrone.connectToDrone(); // Try to initialize the camera to capture mode DJIDrone.getDjiCamera().setCameraMode(CameraMode.Camera_Capture_Mode, new DJIExecuteResultCallback() { @Override public void onResult(DJIError mErr) { String result = "errorCode =" + mErr.errorCode + "\n" + "errorDeion =" + DJIError.getErrorDeionByErrcode(mErr.errorCode); if (mErr.errorCode != DJIError.RESULT_OK) { handler.sendMessage(handler.obtainMessage(SHOWDIALOG, result)); // Show the error when setting fails } } }); mDjiGLSurfaceView = (DjiGLSurfaceView)findViewById(R.id.DjiSurfaceView_02); mDjiGLSurfaceView.start(); mReceivedVideoDataCallBack = new DJIReceivedVideoDataCallBack(){ @Override public void onResult(byte[] videoBuffer, int size){ mDjiGLSurfaceView.setDataToDecoder(videoBuffer, size); } }; DJIDrone.getDjiCamera().setReceivedVideoDataCallBack(mReceivedVideoDataCallBack); viewTimer = (TextView) findViewById(R.id.timer); captureAction = (Button) findViewById(R.id.button1); recordAction = (Button) findViewById(R.id.button2); captureMode = (Button) findViewById(R.id.button3); captureAction.setOnClickListener(this); recordAction.setOnClickListener(this); captureMode.setOnClickListener(this); }

多谢前辈 马上跑去试！！

目测是当前相机不在capture mode，跑去usb mode了。 https://dn-dev-dji-front.qbox.me ... Def.CameraMode.html 临时解决方案1：打开DJI GO，DJI GO会在一开始初始化一次相机状态。（在图传画面上记得切去相机功能而非录像功能，不然你拍照的时候仍然会提示228，因为record mode不支持capture相关指令。） 永久解决方案2：在运行你的APP时第一步先初始化照相机模式为capture mode。（其实我觉得教程里面应该提及这一点）