我正在尝试通过蜂窝网络强制网络请求。为此，我要求来自 ConnectivityManager 的移动网络回调，如下所示：
private static final String LOG_TAG = "Main";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ConnectivityManager cm = (ConnectivityManager) getSystemService(
Context.CONNECTIVITY_SERVICE);
// Request the mobile network. This doesn't turn on the mobile network, it just gives the app a handle to it.
NetworkRequest.Builder req = new NetworkRequest.Builder();
req.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR);
req.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET);
cm.requestNetwork(req.build(), new MobileNetworkCallback(cm), 60_000);
}
/**
* Listens for the requested network on API 21+. When the network is available, the network request is done.
*/
private static class MobileNetworkCallback extends ConnectivityManager.NetworkCallback {
ConnectivityManager connectivityManager;
private MobileNetworkCallback(ConnectivityManager connectivityManager) {
this.connectivityManager = connectivityManager;
}
@Override
public void onAvailable(Network network) {
Log.v(LOG_TAG, "got mobile network");
connectivityManager.unregisterNetworkCallback(this);
}
@Override
public void onUnavailable() {
Log.v(LOG_TAG, "network unavailable");
connectivityManager.unregisterNetworkCallback(this);
}
}
这通常有效，即使当前已连接 Wifi。但是，有时即使存在有效的移动连接，我也会收到“不可用”回调。
我记录了以下日志：
11-08 11:28:07.219 801 6062 I ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com..mobiledatatester/.MainActivity (has extras)} from uid 10035
11-08 11:28:07.221 801 6062 I wm_task_created: [1538,1]
11-08 11:28:07.222 801 6062 I wm_task_moved: [1538,1,3]
11-08 11:28:07.222 801 6062 I am_focused_stack: [0,1,0,reuseOrNewTask]
11-08 11:28:07.222 801 6062 I wm_task_moved: [1538,1,3]
11-08 11:28:07.223 801 6062 I am_create_task: [0,1538]
11-08 11:28:07.223 801 6062 I am_create_activity: [0,199959326,1538,com..mobiledatatester/.MainActivity,android.intent.action.MAIN,NULL,NULL,270532608]
11-08 11:28:07.223 801 6062 I wm_task_moved: [1538,1,3]
11-08 11:28:07.224 801 6062 I am_pause_activity: [0,232275752,com.google.android.googlequicksearchbox/com.google.android.launcher.GEL]
11-08 11:28:07.234 586 8784 D audio_hw_primary: enable_snd_device: snd_device(2: speaker)
11-08 11:28:07.236 586 8784 D audio_hw_primary: enable_audio_route: usecase(1) apply and update mixer path: low-latency-playback speaker
11-08 11:28:07.242 4093 4093 I am_on_paused_called: [0,com.google.android.launcher.GEL,handlePauseActivity]
11-08 11:28:07.245 801 7491 I am_uid_running: 10189
11-08 11:28:07.262 801 7491 I am_proc_start: [0,25634,10189,com..mobiledatatester,activity,com..mobiledatatester/.MainActivity]
11-08 11:28:07.262 801 7491 I ActivityManager: Start proc 25634:com..mobiledatatester/u0a189 for activity com..mobiledatatester/.MainActivity
11-08 11:28:07.265 25634 25634 I zygote64: Late-enabling -Xcheck:jni
11-08 11:28:07.266 801 818 I sysui_count: [window_time_0,4]
11-08 11:28:07.266 801 818 I sysui_multi_action: [757,803,799,window_time_0,802,4]
11-08 11:28:07.314 801 6065 I am_proc_bound: [0,25634,com..mobiledatatester]
11-08 11:28:07.314 25634 25643 I zygote64: Debugger is no longer active
11-08 11:28:07.320 801 6065 I am_uid_active: 10189
11-08 11:28:07.320 801 6065 I am_restart_activity: [0,199959326,1538,com..mobiledatatester/.MainActivity]
11-08 11:28:07.321 801 6065 I am_set_resumed_activity: [0,com..mobiledatatester/.MainActivity,minimalResumeActivityLocked]
11-08 11:28:07.434 801 4175 D ConnectivityService: requestNetwork for uid/pid:10189/25634 NetworkRequest [ REQUEST id=72, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ]
11-08 11:28:07.435 801 1179 D Ethernet: got request NetworkRequest [ REQUEST id=72, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ] with score 0
11-08 11:28:07.435 801 1053 D WIFI : got request NetworkRequest [ REQUEST id=72, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ] with score 0
11-08 11:28:07.435 801 1053 D WIFI_UT : got request NetworkRequest [ REQUEST id=72, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ] with score 0
11-08 11:28:07.435 1952 1952 D TelephonyNetworkFactory[0]: got request NetworkRequest [ REQUEST id=72, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ] with score 0
11-08 11:28:07.435 1952 1952 D PhoneSwitcherNetworkRequstListener: got request NetworkRequest [ REQUEST id=72, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ] with score 0
11-08 11:28:07.436 1952 1952 D TelephonyNetworkFactory[0]: onNeedNetworkFor NetworkRequest [ REQUEST id=72, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ]
11-08 11:28:07.436 1952 1952 D PhoneSwitcher: evaluating due to netRequest
11-08 11:28:07.437 1952 1952 D DCT : [0]onEnableApn: apnContext={mApnType=default mState=IDLE mWaitingApns={[[ApnSettingV3] T-Mobile GPRS, 794, 310260, fast.t-mobile.com, , , , , , -1, default | supl, IPV6, IP, true, 0, 0, 0, false, 0, 0, 0, 1440, , , false]} mApnSetting={null} mReason=dataEnabled mDataEnabled=true mDependencyMet=true} call applyNewState
11-08 11:28:07.437 1952 1952 D DCT : [0]applyNewState(default, true(true), true(true))
11-08 11:28:07.437 1952 1952 D DCT : [0]cleanUpConnection: X tearDown=true reason=dataEnabled apnContext={mApnType=default mState=IDLE mWaitingApns={[[ApnSettingV3] T-Mobile GPRS, 794, 310260, fast.t-mobile.com, , , , , , -1, default | supl, IPV6, IP, true, 0, 0, 0, false, 0, 0, 0, 1440, , , false]} mApnSetting={null} mReason=dataEnabled mDataEnabled=true mDependencyMet=true} dcac=null
11-08 11:28:07.438 1952 1952 D DCT : [0]trySetupData for type:default due to dataEnabled, mIsPsRestricted=false
11-08 11:28:07.440 25634 25634 I am_on_resume_called: [0,com..mobiledatatester.MainActivity,LAUNCH_ACTIVITY]
11-08 11:28:07.442 1952 1952 D DCT : [0]Default data call activation not allowed in iwlan.
11-08 11:28:07.451 25634 25653 D OpenGLRenderer: HWUI GL Pipeline
11-08 11:28:07.460 1952 1952 D DCT : [0]Default data call activation not possible in iwlan.
11-08 11:28:07.471 1952 1952 D DCT : [0]Default data call activation not allowed in iwlan.
11-08 11:28:07.471 1952 1952 D DCT : [0]isEmergency: result=false
11-08 11:28:07.471 1952 1952 D DCT : [0]trySetupData failed. apnContext = [type=default, mState=IDLE, mDataEnabled=true, mDependencyMet=true]. isDataAllowedForApn = false. RAT = 18.
11-08 11:28:07.493 25634 25653 I Adreno : QUALCOMM build : 7142022, Ib5823dd10c
11-08 11:28:07.493 25634 25653 I Adreno : Build Date : 06/23/17
11-08 11:28:07.493 25634 25653 I Adreno : OpenGL ES Shader Compiler Version: EV031.18.00.00
11-08 11:28:07.493 25634 25653 I Adreno : Local Branch : O11A
11-08 11:28:07.493 25634 25653 I Adreno : Remote Branch :
11-08 11:28:07.493 25634 25653 I Adreno : Remote Branch :
11-08 11:28:07.493 25634 25653 I Adreno : Reconstruct Branch :
11-08 11:28:07.493 25634 25653 I vndksupport: sphal namespace is not configured for this process. Loading /vendor/lib64/hw/gralloc.msm8994.so from the current namespace instead.
11-08 11:28:07.498 25634 25653 I Adreno : PFP: 0x00000000, ME: 0x00000000
11-08 11:28:07.501 25634 25653 I OpenGLRenderer: Initialized EGL, version 1.4
11-08 11:28:07.501 25634 25653 D OpenGLRenderer: Swap behavior 2
11-08 11:28:07.521 369 369 W /system/bin/hwservicemanager: getTransportFromManifest: Cannot find entry android.hardware.graphics.mapper@2.0::IMapper in either framework or device manifest, using default transport.
11-08 11:28:07.523 25634 25653 I vndksupport: sphal namespace is not configured for this process. Loading /vendor/lib64/hw/gralloc.msm8994.so from the current namespace instead.
11-08 11:28:07.543 801 826 I sysui_multi_action: [319,106,321,64,322,321,325,11519,757,761,758,7,759,1,806,com..mobiledatatester,871,com..mobiledatatester.MainActivity,905,0,945,98]
11-08 11:28:07.543 801 826 I am_activity_launch_time: [0,199959326,com..mobiledatatester/.MainActivity,294,294]
11-08 11:28:07.543 801 826 I ActivityManager: Displayed com..mobiledatatester/.MainActivity: +294ms
11-08 11:28:07.716 801 818 I am_stop_activity: [0,232275752,com.google.android.googlequicksearchbox/com.google.android.launcher.GEL]
11-08 11:28:07.743 4093 4093 I am_on_stop_called: [0,com.google.android.launcher.GEL,handleStopActivity]
11-08 11:28:07.756 586 747 D audio_hw_primary: disable_audio_route: usecase(1) reset and update mixer path: low-latency-playback speaker
11-08 11:28:07.760 13786 13786 I PBSessionCacheImpl: Deleted sessionId[4344428655197] from persistence.
11-08 11:28:07.762 586 747 D audio_hw_primary: disable_snd_device: snd_device(2: speaker)
11-08 11:28:09.339 25634 25643 I zygote64: Ignoring second debugger -- accepting and dropping
11-08 11:28:09.365 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:09.366 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:09.373 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:09.389 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:09.390 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:12.825 3986 25622 I PlaceInferenceEngine: [anon] Changed inference mode: 105
11-08 11:28:12.838 3986 3986 I GeofencerStateMachine: removeGeofences: removeRequest=RemoveGeofencingRequest[REMOVE_BY_PENDING_INTENT pendingIntent=PendingIntent[creatorPackage=com.google.android.gms], packageName=null]
11-08 11:28:12.862 3986 3986 I chatty : uid=10017(u0_a17) com.google.android.gms.persistent identical 2 lines
11-08 11:28:12.866 3986 3986 I GeofencerStateMachine: removeGeofences: removeRequest=RemoveGeofencingRequest[REMOVE_BY_PENDING_INTENT pendingIntent=PendingIntent[creatorPackage=com.google.android.gms], packageName=null]
11-08 11:28:13.214 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:13.215 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:13.222 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:13.236 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:13.237 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:17.054 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:17.055 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:17.064 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:17.076 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:17.077 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:17.787 13786 25663 I EventLogSendingHelper: Sending log events.
11-08 11:28:17.859 801 817 I am_pss : [25634,10189,com..mobiledatatester,37364736,34234368,9216]
11-08 11:28:19.615 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:19.615 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:19.623 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:19.636 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:19.638 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:22.175 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:22.175 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:22.183 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:22.197 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:22.199 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:24.735 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:24.735 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:24.743 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:24.757 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:24.759 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:27.295 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:27.295 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:27.303 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:27.318 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:27.319 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:32.415 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:32.415 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:32.424 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:32.439 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:32.441 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:34.975 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:34.975 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:34.984 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:34.997 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:34.999 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:40.095 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:40.095 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:40.105 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:40.119 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:40.121 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:42.655 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:42.655 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:42.663 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:42.679 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:42.681 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:43.935 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:43.935 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:43.942 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:43.960 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:43.961 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:47.775 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:47.775 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:47.783 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:47.799 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:47.800 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:47.890 801 817 I am_pss : [4093,10035,com.google.android.googlequicksearchbox,87817216,74682368,8192]
11-08 11:28:50.335 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:50.335 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:50.344 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:50.358 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:50.360 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:51.914 1952 1952 D DCT : [0]Data stall alarm
11-08 11:28:51.981 3986 25676 E AppUsageEventWatcher: wrong time range: [1510165154112, 1510162131978)
11-08 11:28:52.895 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:52.895 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:52.902 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:52.917 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:52.918 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:28:55.455 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:55.455 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:28:55.464 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:28:55.479 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:28:55.481 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:29:00.005 801 801 I ActivityManager: Killing 24197:com.android.providers.calendar/u0a2 (adj 906): empty for 1800s
11-08 11:29:00.005 801 801 I am_kill : [0,24197,com.android.providers.calendar,906,empty for 1800s]
11-08 11:29:00.068 801 2148 I am_proc_died: [0,24197,com.android.providers.calendar,906,17]
11-08 11:29:00.069 801 2148 I am_uid_stopped: 10002
11-08 11:29:00.092 801 817 I am_pss : [13786,10035,com.google.android.googlequicksearchbox:search,48027648,40529920,10240]
11-08 11:29:00.128 801 817 I am_pss : [18565,10028,com.android.vending:instant_app_installer,10842112,3805184,0]
11-08 11:29:00.575 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:29:00.575 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:29:00.583 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:29:00.598 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:29:00.600 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:29:05.695 576 874 E QC-QMI : linux_qmi_qmux_io_wake_lock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:29:05.695 576 874 E QC-QMI : linux_qmi_qmux_io_wake_unlock: Err in writing wakelock=qmuxd_port_wl_0, error [1:Operation not permitted]
11-08 11:29:05.703 5346 5346 I CarrierServices: [2] n.a: CellServiceUtils.getRegisteredCellInfo, no coarse location permission.
11-08 11:29:05.719 5346 5346 D ConnectivityManager: getMobileDataEnabled()+ subId=8
11-08 11:29:05.722 5346 5346 D ConnectivityManager: getMobileDataEnabled()- subId=8 retVal=true
11-08 11:29:07.495 801 1058 D ConnectivityService: releasing NetworkRequest [ REQUEST id=72, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN] ] (CALLBACK_UNAVAIL)
11-08 11:29:07.503 25634 25652 V Main : network unavailable
线条与
iwlan 中不允许默认数据呼叫激活
令人担忧，但我不知道它们的确切含义。
在使用网络回调以确保始终调用“可用”回调时是否有正确的方法？