flutter - 为什么使用 agora rtc 进行视频通话时，远程和本地用户都会黑屏？

Question

我尝试遵循将 agora 与 flutter 结合使用的示例，并包含了文档中推荐的权限。但是，每当我在两个模拟器设备上运行该应用程序时，我都会为加入 channel 的远程和本地用户获得黑屏。

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:agora_rtc_engine/rtc_engine.dart';
import 'package:agora_rtc_engine/rtc_local_view.dart' as RtcLocalView;
import 'package:agora_rtc_engine/rtc_remote_view.dart' as RtcRemoteView;

const appId = "ba997ed994ca4163a06898c8fd9e7f1b";
const tempToken =
    "006ba997ed994ca4163a06898c8fd9e7f1bIAA4Dx064RTGa9iaVmXQjxtTuvgDsBgiMUiuWhMBW9zsH+LcsooAAAAAEADkBngOXNpIYQEAAQBb2khh";
void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  int? _remoteUid;
  late RtcEngine _engine;
  bool _localUserJoined = false;
  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    initAgora();
  }

  Future<void> initAgora() async {
    // retrieve permissions
    await [Permission.microphone, Permission.camera].request();

    //create the engine
    _engine = await RtcEngine.create(appId);
    await _engine.enableLocalVideo(true);
    await _engine.enableVideo();

    _engine.setEventHandler(
      RtcEngineEventHandler(
        error: (code) {
          setState(() {
            print('OnError: $code');
          });
        },
        joinChannelSuccess: (String channel, int uid, int elapsed) {
          print("local user $uid joined");
          setState(() {
            _localUserJoined = true;
          });
        },
        userJoined: (int uid, int elapsed) {
          print("remote user $uid joined");
          setState(() {
            _remoteUid = uid;
          });
        },
        userOffline: (int uid, UserOfflineReason reason) {
          print("remote user $uid left channel");
          setState(() {
            _remoteUid = null;
          });
        },
      ),
    );

    await _engine.joinChannel(tempToken, "test1", null, 0);
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Agora Video Call'),
        ),
        body: Container(
          child: Stack(
            children: [
              Center(
                child: _remoteVideo(),
              ),
              Align(
                alignment: Alignment.bottomRight,
                child: Container(
                  width: 100,
                  height: 150,
                  child: _localUserJoined
                      ? RtcLocalView.TextureView()
                      : const CircularProgressIndicator(),
                ),
              )
            ],
          ),
        ),
      ),
    );
  }

  // Display remote user's video
  Widget _remoteVideo() {
    if (_remoteUid != null) {
      return RtcRemoteView.SurfaceView(uid: _remoteUid!);
    } else {
      return const Text(
        'Please wait for remote user to join',
        textAlign: TextAlign.center,
      );
    }
  }
}

这是我在运行应用程序时在日志控制台上获得的内容

D/EGL_emulation( 7173): eglMakeCurrent: 0xd7feda20: ver 2 0 (tinfo 0xe374ef80)
I/OpenGLRenderer( 7173): Davey! duration=779ms; Flags=0, IntendedVsync=685691964116, Vsync=685708630782, OldestInputEvent=9223372036854775807, NewestInputEvent=0, HandleInputStart=685708797700, AnimationStart=685708875900, PerformTraversalsStart=685708953100, DrawStart=685715178000, SyncQueued=685747716900, SyncStart=685790044600, IssueDrawCommandsStart=685795726600, SwapBuffers=686079910600, FrameCompleted=686513563000, DequeueBufferDuration=138518000, QueueBufferDuration=25800000, 
E/BluetoothAdapter( 7173): Bluetooth binder is null
D/agora-jni( 7173): android bridge create done...
E/libc    ( 7173): Access denied finding property "net.dns1"
E/libc    ( 7173): Access denied finding property "net.dns2"
E/libc    ( 7173): Access denied finding property "net.dns3"
E/libc    ( 7173): Access denied finding property "net.dns4"
E/libc    ( 7173): Access denied finding property "net.dns1"
E/libc    ( 7173): Access denied finding property "net.dns2"
E/libc    ( 7173): Access denied finding property "net.dns3"
E/libc    ( 7173): Access denied finding property "net.dns4"
W/deo_call_trial( 7173): Verification of java.lang.Iterable kotlin.collections.ArraysKt___ArraysKt.asIterable(long[]) took 101.748ms
I/deo_call_trial( 7173): Background young concurrent copying GC freed 22938(1311KB) AllocSpace objects, 0(0B) LOS objects, 47% free, 1429KB/2719KB, paused 3.944ms total 146.642ms
I/CameraManagerGlobal( 7173): Connecting to camera service
E/libc    ( 7173): Access denied finding property "net.dns1"
E/libc    ( 7173): Access denied finding property "net.dns2"
E/libc    ( 7173): Access denied finding property "net.dns3"
E/libc    ( 7173): Access denied finding property "net.dns4"
D/*WEBRTCN*( 7173): SetRenderAndroidVM
I/VideoCapabilities( 7173): Unsupported profile 4 for video/mp4v-es
D/HostConnection( 7173): HostConnection::get() New Host Connection established 0xc43a4920, tid 7265
D/HostConnection( 7173): HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_async_unmap_buffer ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_gles_max_version_2 
W/GDPGlUtil( 7173): unable to find RGB8888 / 3 EGLConfig
D/EGL_emulation( 7173): eglCreateContext: 0xe37c1140: maj 2 min 0 rcv 2
D/GDPGlUtil( 7173): EGLContext created, client version 2
D/EGL_emulation( 7173): eglMakeCurrent: 0xe37c1140: ver 2 0 (tinfo 0xd80280d0)
I/GDPAndroid( 7173): cores:4
I/chatty  ( 7173): uid=10133(com.nawraaradi.video_call_trial1) GENP.0 identical 4 lines
I/GDPAndroid( 7173): cores:4
I/GDPAndroid( 7173): max freq:1991000
I/GDPAndroid( 7173): total mem:2089172992
V/MediaRouter( 7173): Selecting route: RouteInfo{ name=Phone, description=null, status=null, category=RouteCategory{ name=System types=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO  groupable=false }, supportedTypes=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO , presentationDisplay=null }
W/AudioTrack( 7173): Use of stream types is deprecated for operations other than volume control
W/AudioTrack( 7173): See the documentation of AudioTrack() for what to use instead with android.media.AudioAttributes to qualify your playback use case
V/MediaRouter( 7173): Selecting route: RouteInfo{ name=Phone, description=null, status=null, category=RouteCategory{ name=System types=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO  groupable=false }, supportedTypes=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO , presentationDisplay=null }
I/flutter ( 7173): local user 180939488 joined
I/flutter ( 7173): remote user 979896972 joined
I/deo_call_trial( 7173): Background concurrent copying GC freed 10893(1140KB) AllocSpace objects, 10(328KB) LOS objects, 49% free, 1873KB/3746KB, paused 1.984ms total 460.037ms
W/Gralloc3( 7173): allocator 3.x is not supported
D/AudioTrack( 7173): getTimestamp_l(9): device stall time corrected using current time 720119488800
W/System.err( 7173): java.io.FileNotFoundException: /sys/class/thermal/thermal_zone0/temp: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:496)
W/System.err( 7173):    at java.io.FileInputStream.<init>(FileInputStream.java:159)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.readOneLine(GDPAndroid.java:383)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.getCpuTemperature(GDPAndroid.java:362)
W/System.err( 7173): Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.Linux.open(Native Method)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at libcore.io.BlockGuardOs.open(BlockGuardOs.java:252)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7255)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:482)
W/System.err( 7173):    ... 3 more
W/System.err( 7173): java.io.FileNotFoundException: /sys/devices/virtual/thermal/thermal_zone0/temp: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:496)
W/System.err( 7173):    at java.io.FileInputStream.<init>(FileInputStream.java:159)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.readOneLine(GDPAndroid.java:383)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.getCpuTemperature(GDPAndroid.java:362)
W/System.err( 7173): Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.Linux.open(Native Method)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at libcore.io.BlockGuardOs.open(BlockGuardOs.java:252)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7255)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:482)
W/System.err( 7173):    ... 3 more
W/GENP.0  ( 7173): type=1400 audit(0.0:50): avc: denied { read } for name="temp" dev="sysfs" ino=13214 scontext=u:r:untrusted_app:s0:c133,c256,c512,c768 tcontext=u:object_r:sysfs:s0 tclass=file permissive=0 app=com.nawraaradi.video_call_trial1
D/eglCodecCommon( 7173): allocate: Ask for block of size 0x71000
D/eglCodecCommon( 7173): allocate: ioctl allocate returned offset 0x3ff0fa000 size 0x72000
D/HostConnection( 7173): HostConnection::get() New Host Connection established 0xdb65ea40, tid 7287
D/HostConnection( 7173): HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_async_unmap_buffer ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_gles_max_version_2 
D/EGL_emulation( 7173): eglCreateContext: 0xdb61bfe0: maj 2 min 0 rcv 2
D/EGL_emulation( 7173): eglMakeCurrent: 0xd7feda20: ver 2 0 (tinfo 0xe374ef80)
E/libc    ( 7173): Access denied finding property "net.dns1"
E/libc    ( 7173): Access denied finding property "net.dns2"
E/libc    ( 7173): Access denied finding property "net.dns3"
E/libc    ( 7173): Access denied finding property "net.dns4"
W/GENP.0  ( 7173): type=1400 audit(0.0:52): avc: denied { read } for name="temp" dev="sysfs" ino=13214 scontext=u:r:untrusted_app:s0:c133,c256,c512,c768 tcontext=u:object_r:sysfs:s0 tclass=file permissive=0 app=com.nawraaradi.video_call_trial1
W/GENP.0  ( 7173): type=1400 audit(0.0:53): avc: denied { read } for name="temp" dev="sysfs" ino=13214 scontext=u:r:untrusted_app:s0:c133,c256,c512,c768 tcontext=u:object_r:sysfs:s0 tclass=file permissive=0 app=com.nawraaradi.video_call_trial1
W/System.err( 7173): java.io.FileNotFoundException: /sys/class/thermal/thermal_zone0/temp: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:496)
W/System.err( 7173):    at java.io.FileInputStream.<init>(FileInputStream.java:159)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.readOneLine(GDPAndroid.java:383)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.getCpuTemperature(GDPAndroid.java:362)
W/System.err( 7173): Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.Linux.open(Native Method)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at libcore.io.BlockGuardOs.open(BlockGuardOs.java:252)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7255)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:482)
W/System.err( 7173):    ... 3 more
W/System.err( 7173): java.io.FileNotFoundException: /sys/devices/virtual/thermal/thermal_zone0/temp: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:496)
W/System.err( 7173):    at java.io.FileInputStream.<init>(FileInputStream.java:159)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.readOneLine(GDPAndroid.java:383)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.getCpuTemperature(GDPAndroid.java:362)
W/System.err( 7173): Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.Linux.open(Native Method)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at libcore.io.BlockGuardOs.open(BlockGuardOs.java:252)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7255)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:482)
W/System.err( 7173):    ... 3 more
D/EGL_emulation( 7173): eglMakeCurrent: 0xdb61bfe0: ver 2 0 (tinfo 0xb45e3130)
E/EGL_emulation( 7173): eglQueryContext 32c0  EGL_BAD_ATTRIBUTE
E/EGL_emulation( 7173): tid 7287: eglQueryContext(1903): error 0x3004 (EGL_BAD_ATTRIBUTE)
I/AGORA_SDK( 7173): Surface changed to width 1440 height 2112
D/HostConnection( 7173): HostConnection::get() New Host Connection established 0xb777c3d0, tid 7292
D/HostConnection( 7173): HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_async_unmap_buffer ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_gles_max_version_2 
D/EGL_emulation( 7173): eglMakeCurrent: 0xd7feda20: ver 2 0 (tinfo 0xe374ef80)
I/deo_call_trial( 7173): Background young concurrent copying GC freed 11412(1055KB) AllocSpace objects, 2(104KB) LOS objects, 39% free, 2252KB/3746KB, paused 8.165ms total 477.502ms
D/EGL_emulation( 7173): eglCreateContext: 0xe37c26a0: maj 2 min 0 rcv 2
I/OpenGLRenderer( 7173): Davey! duration=1542ms; Flags=1, IntendedVsync=721175292876, Vsync=721525292862, OldestInputEvent=9223372036854775807, NewestInputEvent=0, HandleInputStart=721539986100, AnimationStart=721540060100, PerformTraversalsStart=721555098200, DrawStart=722464197900, SyncQueued=722467391200, SyncStart=722613505700, IssueDrawCommandsStart=722613690600, SwapBuffers=722639609400, FrameCompleted=722864107200, DequeueBufferDuration=2333000, QueueBufferDuration=1409000, 
I/Choreographer( 7173): Skipped 80 frames!  The application may be doing too much work on its main thread.
D/EGL_emulation( 7173): eglMakeCurrent: 0xd7feda20: ver 2 0 (tinfo 0xe374ef80)
D/EGL_emulation( 7173): eglMakeCurrent: 0xe37c26a0: ver 2 0 (tinfo 0xc4043740)
E/EGL_emulation( 7173): eglQueryContext 32c0  EGL_BAD_ATTRIBUTE
E/EGL_emulation( 7173): tid 7292: eglQueryContext(1903): error 0x3004 (EGL_BAD_ATTRIBUTE)
I/AGORA_SDK( 7173): Surface changed to width 350 height 525
D/AudioTrack( 7173): getTimestamp_l(9): device stall time corrected using current time 723307290400
D/EGL_emulation( 7173): eglMakeCurrent: 0xd7feda20: ver 2 0 (tinfo 0xe374ef80)
D/HostConnection( 7173): HostConnection::get() New Host Connection established 0xaf53cf20, tid 7290
D/HostConnection( 7173): HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_async_unmap_buffer ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_gles_max_version_2 
E/libc    ( 7173): Access denied finding property "net.dns1"
E/libc    ( 7173): Access denied finding property "net.dns2"
E/libc    ( 7173): Access denied finding property "net.dns3"
E/libc    ( 7173): Access denied finding property "net.dns4"
W/System.err( 7173): java.io.FileNotFoundException: /sys/class/thermal/thermal_zone0/temp: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:496)
W/System.err( 7173):    at java.io.FileInputStream.<init>(FileInputStream.java:159)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.readOneLine(GDPAndroid.java:383)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.getCpuTemperature(GDPAndroid.java:362)
W/System.err( 7173): Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.Linux.open(Native Method)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at libcore.io.BlockGuardOs.open(BlockGuardOs.java:252)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7255)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:482)
W/System.err( 7173):    ... 3 more
W/System.err( 7173): java.io.FileNotFoundException: /sys/devices/virtual/thermal/thermal_zone0/temp: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:496)
W/System.err( 7173):    at java.io.FileInputStream.<init>(FileInputStream.java:159)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.readOneLine(GDPAndroid.java:383)
W/System.err( 7173):    at io.agora.rtc.gdp.GDPAndroid.getCpuTemperature(GDPAndroid.java:362)
W/System.err( 7173): Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied)
W/System.err( 7173):    at libcore.io.Linux.open(Native Method)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/GENP.0  ( 7173): type=1400 audit(0.0:54): avc: denied { read } for name="temp" dev="sysfs" ino=13214 scontext=u:r:untrusted_app:s0:c133,c256,c512,c768 tcontext=u:object_r:sysfs:s0 tclass=file permissive=0 app=com.nawraaradi.video_call_trial1
W/System.err( 7173):    at libcore.io.BlockGuardOs.open(BlockGuardOs.java:252)
W/System.err( 7173):    at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
W/System.err( 7173):    at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7255)
W/System.err( 7173):    at libcore.io.IoBridge.open(IoBridge.java:482)
W/System.err( 7173):    ... 3 more
W/GENP.0  ( 7173): type=1400 audit(0.0:55): avc: denied { read } for name="temp" dev="sysfs" ino=13214 scontext=u:r:untrusted_app:s0:c133,c256,c512,c768 tcontext=u:object_r:sysfs:s0 tclass=file permissive=0 app=com.nawraaradi.video_call_trial1
D/HostConnection( 7173): HostConnection::get() New Host Connection established 0xdb660610, tid 7288
D/HostConnection( 7173): HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_async_unmap_buffer ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_gles_max_version_2 
D/HostConnection( 7173): HostConnection::get() New Host Connection established 0xdb661f60, tid 7191
D/HostConnection( 7173): HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_async_unmap_buffer ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_gles_max_version_2 

我什至已经确认模拟器的前置摄像头已连接到我电脑的网络摄像头。如果有人以前遇到过这个问题并且已经克服了它，请向我推荐一个解决方案。

Answer 1

allocator 3.x is not supported 这似乎是一个模拟器错误。您可以尝试在物理设备上运行它，或者尝试在您的模拟器上运行 flutter run --enable-software-rendering