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社区首页 >问答首页 >用于Android和DeepAR的颤振插件在DeepAR中的空指针删除

问用于Android和DeepAR的颤振插件在DeepAR中的空指针删除
EN

Stack Overflow用户
提问于 2021-07-25 18:24:35
回答 1查看 628关注 0票数 0

我正在使用DeepAR (https://developer.deepar.ai/)结合颤振。我正在为Android创建一个颤振插件。我使用JetPack支持库CameraX进行相机访问。库提供了一个名为"ImageAnalyse“(https://developer.android.com/training/camerax/analyze)的用例。我试图将它与DeepAR结合起来。我想通过摄像头在DeepAR上显示的面具作为资产在App中显示。当我调用"switchEffect“时，应用程序就会崩溃。

颤振插件

颤振插件的体系结构遵循颤振文档中的建议。

代码语言：javascript
复制
class ExamplePlugin : FlutterPlugin, ActivityAware {
    private var flutterPluginBinding: FlutterPluginBinding? = null
    private var activityPluginBinding: ActivityPluginBinding? = null
    // overrides are implemented but left out for simplicity
}
代码语言：javascript
复制
class PluginViewFactory(
    private val flutterPluginBinding: FlutterPlugin.FlutterPluginBinding, private val activityPluginBinding: ActivityPluginBinding
) : PlatformViewFactory(StandardMessageCodec.INSTANCE) {

    override fun create(context: Context?, id: Int, args: Any?): PlatformView {
        return PluginView(flutterPluginBinding, activityPluginBinding, context, id, args)
    }
}
代码语言：javascript
复制
class PluginView(
    flutterPluginBinding: FlutterPluginBinding,
    activityPluginBinding: ActivityPluginBinding,
    private val context: Context?,
    id: Int,
    args: Any?
) : PlatformView, MethodChannel.MethodCallHandler, PluginRegistry.RequestPermissionsResultListener,
    AREventListener {
    private val activity = activityPluginBinding.activity
    // I left out some code for simplicity

创建ProcessCameraProvider

代码语言：javascript
复制
    private fun startCamera() {
        val cameraProviderFuture = ProcessCameraProvider.getInstance(activity)
        cameraProviderFuture.addListener({
            cameraProvider = cameraProviderFuture.get()
            bindPreviewAndAnalysis(cameraProvider)
        }, ContextCompat.getMainExecutor(activity))
    }

绑定图像预览和图像分析用例

代码语言：javascript
复制
    private fun bindPreviewAndAnalysis(cameraProvider: ProcessCameraProvider?) {
        // Preview
        val imagePreview = Preview.Builder()
            .build()
            .also {
                it.setSurfaceProvider(previewView.surfaceProvider)
            }

        // Analysis
        val cameraPreset = CameraResolutionPreset.P1280x720
        val width: Int
        val height: Int
        val orientation: Int = getScreenOrientation()
        if (orientation == ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE || orientation == ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) {
            width = cameraPreset.width
            height = cameraPreset.height
        } else {
            width = cameraPreset.height
            height = cameraPreset.width
        }
        arrayOfNulls<ByteBuffer>(NUMBER_OF_BUFFERS).also { buffers = it }
        for (i in 0 until NUMBER_OF_BUFFERS) {
            buffers[i] = ByteBuffer.allocateDirect(width * height * 3)
            buffers[i]?.order(ByteOrder.nativeOrder())
            buffers[i]?.position(0)
        }
        val imageAnalysis = ImageAnalysis.Builder().setTargetResolution(Size(width, height))
            .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST).build()
        cameraExecutor?.let {
            imageAnalysis.setAnalyzer(
                it,
                { image ->
                    val byteData: ByteArray
                    val yBuffer: ByteBuffer = image.planes[0].buffer
                    val uBuffer: ByteBuffer = image.planes[1].buffer
                    val vBuffer: ByteBuffer = image.planes[2].buffer
                    val ySize: Int = yBuffer.remaining()
                    val uSize: Int = uBuffer.remaining()
                    val vSize: Int = vBuffer.remaining()
                    byteData = ByteArray(ySize + uSize + vSize)

                    //U and V are swapped
                    yBuffer.get(byteData, 0, ySize)
                    vBuffer.get(byteData, ySize, vSize)
                    uBuffer.get(byteData, ySize + vSize, uSize)
                    buffers[currentBuffer]?.put(byteData)
                    buffers[currentBuffer]?.position(0)
                    if (deepAR != null) {
                        deepAR?.receiveFrame(
                            buffers[currentBuffer],
                            image.width,
                            image.height,
                            image.imageInfo.rotationDegrees,
                            cameraSelector == CameraSelector.DEFAULT_FRONT_CAMERA,
                            DeepARImageFormat.YUV_420_888,
                            image.planes[1].pixelStride
                        )
                    }
                    currentBuffer = (currentBuffer + 1) % NUMBER_OF_BUFFERS
                    image.close()
                })
        }

        try {
            cameraProvider?.unbindAll()

            cameraSelector?.let {
                cameraProvider?.bindToLifecycle(activity as LifecycleOwner,
                    it, imagePreview, imageAnalysis)
            }
        } catch (e: Exception) {
            Log.e(TAG, "Use case binding failed", e)
        }
    }

使用DeepAR switchEffect

代码语言：javascript
复制
    private fun changeMask(mask: String) {
        try {
            val loader = FlutterInjector.instance().flutterLoader()
            val path = loader.getLookupKeyForAsset("assets/masks/$mask", "my_plugin_name")
            val maskFd: AssetFileDescriptor = activity.assets.openFd(path)
            deepAR?.switchEffect("masks", maskFd.createInputStream())
        } catch (exc: Exception) {
            Log.e(TAG, "Could not change mask", exc)
        }
    }

误差

当调用"switchEffect“时，应用程序崩溃时会出现以下错误：

代码语言：javascript
复制
F/libc    (20852): Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0 in tid 20852 (.example.app), pid 20852 (.example.app)
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint: 'google/walleye/walleye:11/RP1A.201005.004.A1/6934943:user/release-keys'
Revision: 'MP1'
ABI: 'arm64'
Timestamp: 2021-07-25 13:59:29+0200
pid: 20852, tid: 20852, name: .example.app  >>> com.example.app <<<
uid: 10194
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
Cause: null pointer dereference
    x0  0000007129de3570  x1  0000007129de3570  x2  0000007139e3b210  x3  0000007119769984
    x4  0000007ff61c6788  x5  0000000000000000  x6  0000000000000001  x7  6ced3fea237c8a73
    x8  0000000000000000  x9  6ced3fea237c8a73  x10 0000000000430000  x11 0000000029de3576
    x12 000000005375645e  x13 0000007ff61c68a0  x14 0000000000000002  x15 00000000ebad6a89
    x16 00000073acaaa7f8  x17 00000073aabc5bd0  x18 00000073af972000  x19 0000007139e3b210
    x20 0000007ff61c68b0  x21 00000071d9d95c70  x22 0000000000000001  x23 0000007ff61c68b4
    x24 0000000000000000  x25 00000073af273000  x26 0000000000000069  x27 0000007119d77000
    x28 0000007ff61c68c0  x29 0000007ff61c6890
    lr  000000707f88e504  sp  0000007ff61c6850  pc  000000707f88e514  pst 0000000060000000
backtrace:
      #00 pc 000000000004a514  /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/lib/arm64/libnative-lib.so (Java_ai_deepar_ar_DeepAR_switchEffectRawNative+268) (BuildId: 342abf6bf48a1e62b230a5496cbaeecab0b6c701)
      #01 pc 000000000013ced4  /apex/com.android.art/lib64/libart.so (art_quick_generic_jni_trampoline+148) (BuildId: d0f321775158ed00df284edfabf672b6)
      #02 pc 0000000000133564  /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+548) (BuildId: d0f321775158ed00df284edfabf672b6)
      #03 pc 00000000001a97e8  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+200) (BuildId: d0f321775158ed00df284edfabf672b6)
      #04 pc 000000000031c040  /apex/com.android.art/lib64/libart.so (art::interpreter::ArtInterpreterToCompiledCodeBridge(art::Thread*, art::ArtMethod*, art::ShadowFrame*, unsigned short, art::JValue*)+376) (BuildId: d0f321775158ed00df284edfabf672b6)
      #05 pc 0000000000313288  /apex/com.android.art/lib64/libart.so (bool art::interpreter::DoCall<true, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+696) (BuildId: d0f321775158ed00df284edfabf672b6)
      #06 pc 000000000068b144  /apex/com.android.art/lib64/libart.so (MterpInvokeDirectRange+436) (BuildId: d0f321775158ed00df284edfabf672b6)
      #07 pc 000000000012dc14  /apex/com.android.art/lib64/libart.so (mterp_op_invoke_direct_range+20) (BuildId: d0f321775158ed00df284edfabf672b6)
      #08 pc 0000000000162a36  [anon:dalvik-classes.dex extracted in memory from /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/base.apk] (ai.deepar.ar.DeepAR.switchEffect+70)
      #09 pc 0000000000685960  /apex/com.android.art/lib64/libart.so (MterpInvokeVirtual+1520) (BuildId: d0f321775158ed00df284edfabf672b6)
      #10 pc 000000000012d814  /apex/com.android.art/lib64/libart.so (mterp_op_invoke_virtual+20) (BuildId: d0f321775158ed00df284edfabf672b6)
      #11 pc 000000000001a49c  [anon:dalvik-classes2.dex extracted in memory from /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/base.apk!classes2.dex] (com.example.plugin.PluginView.changeMask+296)
      #12 pc 0000000000687fe8  /apex/com.android.art/lib64/libart.so (MterpInvokeDirect+1248) (BuildId: d0f321775158ed00df284edfabf672b6)
      #13 pc 000000000012d914  /apex/com.android.art/lib64/libart.so (mterp_op_invoke_direct+20) (BuildId: d0f321775158ed00df284edfabf672b6)
      #14 pc 000000000001a53a  [anon:dalvik-classes2.dex extracted in memory from /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/base.apk!classes2.dex] (com.example.plugin.PluginView.changeMaskNative+42)
      #15 pc 0000000000687fe8  /apex/com.android.art/lib64/libart.so (MterpInvokeDirect+1248) (BuildId: d0f321775158ed00df284edfabf672b6)
      #16 pc 000000000012d914  /apex/com.android.art/lib64/libart.so (mterp_op_invoke_direct+20) (BuildId: d0f321775158ed00df284edfabf672b6)
      #17 pc 000000000001a962  [anon:dalvik-classes2.dex extracted in memory from /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/base.apk!classes2.dex] (com.example.plugin.PluginView.onMethodCall+154)
      #18 pc 00000000006873a4  /apex/com.android.art/lib64/libart.so (MterpInvokeInterface+1812) (BuildId: d0f321775158ed00df284edfabf672b6)
      #19 pc 000000000012da14  /apex/com.android.art/lib64/libart.so (mterp_op_invoke_interface+20) (BuildId: d0f321775158ed00df284edfabf672b6)
      #20 pc 000000000036ef32  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/base.apk!classes6.dex] (io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage+34)
      #21 pc 00000000006873a4  /apex/com.android.art/lib64/libart.so (MterpInvokeInterface+1812) (BuildId: d0f321775158ed00df284edfabf672b6)
      #22 pc 000000000012da14  /apex/com.android.art/lib64/libart.so (mterp_op_invoke_interface+20) (BuildId: d0f321775158ed00df284edfabf672b6)
      #23 pc 0000000000364daa  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/base.apk!classes6.dex] (io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart+114)
      #24 pc 00000000006873a4  /apex/com.android.art/lib64/libart.so (MterpInvokeInterface+1812) (BuildId: d0f321775158ed00df284edfabf672b6)
      #25 pc 000000000012da14  /apex/com.android.art/lib64/libart.so (mterp_op_invoke_interface+20) (BuildId: d0f321775158ed00df284edfabf672b6)
      #26 pc 0000000000363a64  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/base.apk!classes6.dex] (io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage+8)
      #27 pc 00000000003094d0  /apex/com.android.art/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame&, art::JValue, bool, bool) (.llvm.7618685802058321727)+264) (BuildId: d0f321775158ed00df284edfabf672b6)
      #28 pc 00000000006740c0  /apex/com.android.art/lib64/libart.so (artQuickToInterpreterBridge+776) (BuildId: d0f321775158ed00df284edfabf672b6)
      #29 pc 000000000013cff8  /apex/com.android.art/lib64/libart.so (art_quick_to_interpreter_bridge+88) (BuildId: d0f321775158ed00df284edfabf672b6)
      #30 pc 0000000000133564  /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+548) (BuildId: d0f321775158ed00df284edfabf672b6)
      #31 pc 00000000001a97e8  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+200) (BuildId: d0f321775158ed00df284edfabf672b6)
      #32 pc 000000000055c6f4  /apex/com.android.art/lib64/libart.so (art::JValue art::InvokeVirtualOrInterfaceWithVarArgs<art::ArtMethod*>(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, art::ArtMethod*, std::__va_list)+468) (BuildId: d0f321775158ed00df284edfabf672b6)
      #33 pc 000000000055c894  /apex/com.android.art/lib64/libart.so (art::JValue art::InvokeVirtualOrInterfaceWithVarArgs<_jmethodID*>(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, _jmethodID*, std::__va_list)+92) (BuildId: d0f321775158ed00df284edfabf672b6)
      #34 pc 00000000004197f8  /apex/com.android.art/lib64/libart.so (art::JNI<true>::CallVoidMethodV(_JNIEnv*, _jobject*, _jmethodID*, std::__va_list)+656) (BuildId: d0f321775158ed00df284edfabf672b6)
      #35 pc 000000000037deac  /apex/com.android.art/lib64/libart.so (art::(anonymous namespace)::CheckJNI::CallMethodV(char const*, _JNIEnv*, _jobject*, _jclass*, _jmethodID*, std::__va_list, art::Primitive::Type, art::InvokeType)+2532) (BuildId: d0f321775158ed00df284edfabf672b6)
      #36 pc 000000000036bc50  /apex/com.android.art/lib64/libart.so (art::(anonymous namespace)::CheckJNI::CallVoidMethodV(_JNIEnv*, _jobject*, _jmethodID*, std::__va_list)+72) (BuildId: d0f321775158ed00df284edfabf672b6)
      #37 pc 000000000132663c  /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/lib/arm64/libflutter.so (BuildId: 137d09ab83a412ded1c33ef386351fcc0429a53b)
      #38 pc 0000000001326578  /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/lib/arm64/libflutter.so (BuildId: 137d09ab83a412ded1c33ef386351fcc0429a53b)
      #39 pc 0000000001322408  /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/lib/arm64/libflutter.so (BuildId: 137d09ab83a412ded1c33ef386351fcc0429a53b)
      #40 pc 000000000138428c  /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/lib/arm64/libflutter.so (BuildId: 137d09ab83a412ded1c33ef386351fcc0429a53b)
      #41 pc 0000000001342568  /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/lib/arm64/libflutter.so (BuildId: 137d09ab83a412ded1c33ef386351fcc0429a53b)
      #42 pc 00000000013476f8  /data/app/~~tCz51U3rHjeb2hAFXQB6yw==/com.example.app-xzIovrW9JsSRapHSrOSbnA==/lib/arm64/libflutter.so (BuildId: 137d09ab83a412ded1c33ef386351fcc0429a53b)
      #43 pc 000000000001a064  /system/lib64/libutils.so (android::Looper::pollInner(int)+916) (BuildId: b81fad2b6b7b7f85c6217d2cb80c9e61)
      #44 pc 0000000000019c68  /system/lib64/libutils.so (android::Looper::pollOnce(int, int*, int*, void**)+112) (BuildId: b81fad2b6b7b7f85c6217d2cb80c9e61)
      #45 pc 00000000001120f4  /system/lib64/libandroid_runtime.so (android::android_os_MessageQueue_nativePollOnce(_JNIEnv*, _jobject*, long, int)+44) (BuildId: 30f3430e4d2a28be49d3c60d623f0a29)
      #46 pc 000000000020fadc  /system/framework/arm64/boot-framework.oat (art_jni_trampoline+140) (BuildId: da25c976c2d1d3af123868772655a0779f8f6a48)
      #47 pc 000000000200b6cc  /memfd:jit-cache (deleted) (offset 0x2000000) (android.os.MessageQueue.next+204)
      #48 pc 0000000000133564  /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+548) (BuildId: d0f321775158ed00df284edfabf672b6)
      #49 pc 00000000001a97e8  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+200) (BuildId: d0f321775158ed00df284edfabf672b6)
      #50 pc 000000000031c040  /apex/com.android.art/lib64/libart.so (art::interpreter::ArtInterpreterToCompiledCodeBridge(art::Thread*, art::ArtMethod*, art::ShadowFrame*, unsigned short, art::JValue*)+376) (BuildId: d0f321775158ed00df284edfabf672b6)
      #51 pc 0000000000312228  /apex/com.android.art/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+912) (BuildId: d0f321775158ed00df284edfabf672b6)
      #52 pc 00000000006856c0  /apex/com.android.art/lib64/libart.so (MterpInvokeVirtual+848) (BuildId: d0f321775158ed00df284edfabf672b6)
      #53 pc 000000000012d814  /apex/com.android.art/lib64/libart.so (mterp_op_invoke_virtual+20) (BuildId: d0f321775158ed00df284edfabf672b6)
      #54 pc 0000000000396970  /system/framework/framework.jar (offset 0x92b000) (android.os.Looper.loop+156)
      #55 pc 00000000003094d0  /apex/com.android.art/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame&, art::JValue, bool, bool) (.llvm.7618685802058321727)+264) (BuildId: d0f321775158ed00df284edfabf672b6)
      #56 pc 0000000000311840  /apex/com.android.art/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+200) (BuildId: d0f321775158ed00df284edfabf672b6)
      #57 pc 0000000000312b9c  /apex/com.android.art/lib64/libart.so (bool art::interpreter::DoCall<false, true>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+1772) (BuildId: d0f321775158ed00df284edfabf672b6)
      #58 pc 0000000000178658  /apex/com.android.art/lib64/libart.so (void art::interpreter::ExecuteSwitchImplCpp<true, false>(art::interpreter::SwitchImplContext*)+58656) (BuildId: d0f321775158ed00df284edfabf672b6)
      #59 pc 000000000013f7d8  /apex/com.android.art/lib64/libart.so (ExecuteSwitchImplAsm+8) (BuildId: d0f321775158ed00df284edfabf672b6)
      #60 pc 00000000001a1698  /system/framework/framework.jar (android.app.ActivityThread.main)
      #61 pc 00000000003095d8  /apex/com.android.art/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame&, art::JValue, bool, bool) (.llvm.7618685802058321727)+528) (BuildId: d0f321775158ed00df284edfabf672b6)
      #62 pc 00000000006740c0  /apex/com.android.art/lib64/libart.so (artQuickToInterpreterBridge+776) (BuildId: d0f321775158ed00df284edfabf672b6)
      #63 pc 000000000013cff8  /apex/com.android.art/lib64/libart.so (art_quick_to_interpreter_bridge+88) (BuildId: d0f321775158ed00df284edfabf672b6)
      #64 pc 00000000001337e8  /apex/com.android.art/lib64/libart.so (art_quick_invoke_static_stub+568) (BuildId: d0f321775158ed00df284edfabf672b6)
      #65 pc 00000000001a9804  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+228) (BuildId: d0f321775158ed00df284edfabf672b6)
      #66 pc 000000000055ce14  /apex/com.android.art/lib64/libart.so (art::InvokeMethod(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, _jobject*, _jobject*, unsigned long)+1364) (BuildId: d0f321775158ed00df284edfabf672b6)
      #67 pc 00000000004dba28  /apex/com.android.art/lib64/libart.so (art::Method_invoke(_JNIEnv*, _jobject*, _jobject*, _jobjectArray*)+48) (BuildId: d0f321775158ed00df284edfabf672b6)
      #68 pc 00000000000896f4  /apex/com.android.art/javalib/arm64/boot.oat (art_jni_trampoline+180) (BuildId: 13577ce71153c228ecf0eb73fc39f45010d487f8)
      #69 pc 0000000000133564  /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+548) (BuildId: d0f321775158ed00df284edfabf672b6)
      #70 pc 00000000001a97e8  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+200) (BuildId: d0f321775158ed00df284edfabf672b6)
      #71 pc 000000000031c040  /apex/com.android.art/lib64/libart.so (art::interpreter::ArtInterpreterToCompiledCodeBridge(art::Thread*, art::ArtMethod*, art::ShadowFrame*, unsigned short, art::JValue*)+376) (BuildId: d0f321775158ed00df284edfabf672b6)
      #72 pc 0000000000312228  /apex/com.android.art/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+912) (BuildId: d0f321775158ed00df284edfabf672b6)
      #73 pc 00000000006856c0  /apex/com.android.art/lib64/libart.so (MterpInvokeVirtual+848) (BuildId: d0f321775158ed00df284edfabf672b6)
      #74 pc 000000000012d814  /apex/com.android.art/lib64/libart.so (mterp_op_invoke_virtual+20) (BuildId: d0f321775158ed00df284edfabf672b6)
      #75 pc 000000000044930a  /system/framework/framework.jar (offset 0x125d000) (com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run+22)
      #76 pc 00000000003094d0  /apex/com.android.art/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame&, art::JValue, bool, bool) (.llvm.7618685802058321727)+264) (BuildId: d0f321775158ed00df284edfabf672b6)
      #77 pc 00000000006740c0  /apex/com.android.art/lib64/libart.so (artQuickToInterpreterBridge+776) (BuildId: d0f321775158ed00df284edfabf672b6)
      #78 pc 000000000013cff8  /apex/com.android.art/lib64/libart.so (art_quick_to_interpreter_bridge+88) (BuildId: d0f321775158ed00df284edfabf672b6)
      #79 pc 0000000000897668  /system/framework/arm64/boot-framework.oat (com.android.internal.os.ZygoteInit.main+2280) (BuildId: da25c976c2d1d3af123868772655a0779f8f6a48)
      #80 pc 00000000001337e8  /apex/com.android.art/lib64/libart.so (art_quick_invoke_static_stub+568) (BuildId: d0f321775158ed00df284edfabf672b6)
      #81 pc 00000000001a9804  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+228) (BuildId: d0f321775158ed00df284edfabf672b6)
      #82 pc 000000000055b830  /apex/com.android.art/lib64/libart.so (art::JValue art::InvokeWithVarArgs<art::ArtMethod*>(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, art::ArtMethod*, std::__va_list)+448) (BuildId: d0f321775158ed00df284edfabf672b6)
      #83 pc 000000000055bcf4  /apex/com.android.art/lib64/libart.so (art::JValue art::InvokeWithVarArgs<_jmethodID*>(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, _jmethodID*, std::__va_list)+92) (BuildId: d0f321775158ed00df284edfabf672b6)
      #84 pc 000000000043ecbc  /apex/com.android.art/lib64/libart.so (art::JNI<true>::CallStaticVoidMethodV(_JNIEnv*, _jclass*, _jmethodID*, std::__va_list)+652) (BuildId: d0f321775158ed00df284edfabf672b6)
      #85 pc 000000000009948c  /system/lib64/libandroid_runtime.so (_JNIEnv::CallStaticVoidMethod(_jclass*, _jmethodID*, ...)+124) (BuildId: 30f3430e4d2a28be49d3c60d623f0a29)
      #86 pc 00000000000a0a0c  /system/lib64/libandroid_runtime.so (android::AndroidRuntime::start(char const*, android::Vector<android::String8> const&, bool)+844) (BuildId: 30f3430e4d2a28be49d3c60d623f0a29)
      #87 pc 0000000000003570  /system/bin/app_process64 (main+1320) (BuildId: d4686d3f8282764488eb9ca7cc518583)
      #88 pc 00000000000495b4  /apex/com.android.runtime/lib64/bionic/libc.so (__libc_init+108) (BuildId: c78cdff5b820a550771130d6bde95081)
Lost connection to device.

环境

1.5.20

  • Flutter 2.2.3

  • DeepAR 2.4.1

  • CameraX 1.1.0-α07/ 1.0.0-alpha27

附加备注

当在Android仿真程序(API级别30)和真正的Android设备(Pixel 2，Android 11)上运行一个带有颤振插件的颤振应用程序时，我看到了这个错误。在调试模式和发布模式下运行颤振应用程序时，我看到了这个错误。

任何帮助或建议都是非常欢迎的。我放弃了新的颤振和Android开发，所以我很有可能错过了一些重要的方面。

我还在GitHub回购版DeepAR：https://github.com/DeepARSDK/quickstart-android-java/issues/30上发布了这个问题。

flutter-plugin
android
flutter
kotlin
EN

回答 1

Stack Overflow用户

发布于 2021-08-01 17:04:07

只是想让你知道，我现在选择了另一种方法。最后，我在FileInputStream中使用了“FileInputStream”，而且效果很好：

代码语言：javascript
复制
    private fun getMaskAsFileInputStream(mask: String): FileInputStream? {
        return try {
            val loader = FlutterInjector.instance().flutterLoader()
            val path = loader.getLookupKeyForAsset("assets/masks/$mask", "my_plugin_name")
            val maskFd: AssetFileDescriptor = activity.assets.openFd(path)
            if (maskFd.length > 0) {
                maskFd.createInputStream()
            } else {
                Log.w(TAG, "Mask asset at $path is empty")
                null
            }
        } catch (exc: Exception) {
            Log.e(TAG, "Could not get mask as file input stream", exc)
            null
        }
    }

    private fun changeMask(mask: String) {
        try {
            deepAR?.switchEffect("masks", getMaskAsFileInputStream(mask))
        } catch (exc: Exception) {
            Log.e(TAG, "Could not change mask", exc)
        }
    }
票数 1
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/68521433

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