WIFI开启时通过移动数据发送请求。(Android L)

Question

SDK：Android 5.0.1。

Android 版本：LRX22C。

设备：Nexus 5。

问题： KITKAT(4.4.4) 及以下API的

1) startUsingNetworkFeature(int networkType, String feature) 此方法已弃用。已弃用，取而代之的是清洁器 requestNetwork(NetworkRequest, ConnectivityManager.NetworkCallback)。

2) requestRouteToHost(int networkType, int hostAddress) 此方法已弃用。已弃用，取而代之的是 requestNetwork(NetworkRequest, ConnectivityManager.NetworkCallback)、setProcessDefaultNetwork(Network) 和 getSocketFactory()。

用于在 WIFI 和移动数据开启时通过移动数据网络发送请求。

从 Android L 开始，API 已弃用且不再有效。

使用了新的 API/类 NetworkRequest.Builder、NetworkRequest、ConnectivityManager.NetworkCallback、requestNetwork、registerNetworkCallback。 Detail Here on API usage
Android L API's

代码：

ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkRequest.Builder builder = new NetworkRequest.Builder();

builder.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED);
builder.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR);

NetworkRequest networkRequest = builder.build();
connectivityManager.requestNetwork(networkRequest, networkCallback);
connectivityManager.registerNetworkCallback(networkRequest, networkCallback);

工作场景：

只接收onAvailable回调上的移动数据。

不工作场景： 移动和 Wifi 都打开并连接，onAvailable 未收到来自系统的回调。因此无法设置setProcessDefaultNetwork， ConnectivityManager.setProcessDefaultNetwork(preferedNetwork);

经常：总是

预期输出：wifi 开启时获取移动网络可用回调。

是我遗漏了什么还是固件有问题？

亚行日志：

09-18 18:50:42.617: I/art(1339): Heap transition to ProcessStateJankImperceptible took 64.332086ms saved at least 225KB
09-18 18:50:43.060: I/auditd(16947): type=1400 audit(0.0:899): avc:  denied  { getattr } for  comm="ls" path="/persist" dev="mmcblk0p16" ino=2 scontext=u:r:shell:s0 tcontext=u:object_r:persist_file:s0 tclass=dir
09-18 18:50:43.422: I/ActivityManager(769): START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.example.networktest/.MainActivity (has extras)} from pid 1149 on display 0
09-18 18:50:43.423: I/am_create_task(769): [0,20]
09-18 18:50:43.423: I/am_create_activity(769): [0,145055245,20,com.example.networktest/.MainActivity,android.intent.action.MAIN,NULL,NULL,270532608]
09-18 18:50:43.424: I/wm_task_created(769): [20,1]
09-18 18:50:43.424: I/wm_task_moved(769): [20,1,2]
09-18 18:50:43.424: I/am_pause_activity(769): [0,613529891,com.google.android.googlequicksearchbox/com.google.android.launcher.GEL]
09-18 18:50:43.442: I/am_destroy_service(769): [0,453570950,2161]
09-18 18:50:43.444: D/audio_hw_primary(200): select_devices: out_snd_device(2: speaker) in_snd_device(0: )
09-18 18:50:43.447: I/am_on_paused_called(1149): [0,com.google.android.launcher.GEL]
09-18 18:50:43.492: I/am_proc_start(769): [0,16964,10091,com.example.networktest,activity,com.example.networktest/.MainActivity]
09-18 18:50:43.492: I/ActivityManager(769): Start proc com.example.networktest for activity com.example.networktest/.MainActivity: pid=16964 uid=10091 gids={50091, 3003}
09-18 18:50:43.497: I/am_create_service(769): [0,565414612,.LightweightIndexService,10009,1339]
09-18 18:50:43.501: I/art(16964): Late-enabling -Xcheck:jni
09-18 18:50:43.522: I/am_proc_bound(769): [0,16964,com.example.networktest]
09-18 18:50:43.524: I/am_restart_activity(769): [0,145055245,20,com.example.networktest/.MainActivity]
09-18 18:50:43.526: I/art(16964): Profiler disabled.  To enable setprop dalvik.vm.profiler 1
09-18 18:50:43.533: I/am_create_service(769): [0,28763261,.LightweightIndexService$LightweightWorkerService,10009,1339]
09-18 18:50:43.536: I/am_destroy_service(769): [0,28763261,1339]
09-18 18:50:43.575: D/ConnectivityService(769): requestNetwork for NetworkRequest [ id=18, legacyType=-1, [ Transports: CELLULAR Capabilities: NOT_RESTRICTED] ]
09-18 18:50:43.575: D/ConnectivityService(769): handleRegisterNetworkRequest checking NetworkAgentInfo [WIFI ()]
09-18 18:50:43.575: D/ConnectivityService(769): sending new NetworkRequest to factories
09-18 18:50:43.575: D/WIFI(769): got request NetworkRequest [ id=18, legacyType=-1, [ Transports: CELLULAR Capabilities: NOT_RESTRICTED] ] with score 0
09-18 18:50:43.575: D/WIFI(769):   my score=60, my filter=[ Transports: WIFI Capabilities: INTERNET&NOT_RESTRICTED LinkUpBandwidth>=1048576Kbps LinkDnBandwidth>=1048576Kbps]
09-18 18:50:43.575: D/Ethernet(769): got request NetworkRequest [ id=18, legacyType=-1, [ Transports: CELLULAR Capabilities: NOT_RESTRICTED] ] with score 0
09-18 18:50:43.575: D/Ethernet(769):   my score=-1, my filter=[ Transports: ETHERNET Capabilities: INTERNET&NOT_RESTRICTED LinkUpBandwidth>=100000Kbps LinkDnBandwidth>=100000Kbps]
09-18 18:50:43.575: D/TelephonyNetworkFactory(1113): got request NetworkRequest [ id=18, legacyType=-1, [ Transports: CELLULAR Capabilities: NOT_RESTRICTED] ] with score 0
09-18 18:50:43.575: D/TelephonyNetworkFactory(1113):   my score=50, my filter=[ Transports: CELLULAR Capabilities: MMS&SUPL&DUN&FOTA&IMS&CBS&IA&RCS&XCAP&EIMS&INTERNET&NOT_RESTRICTED]
09-18 18:50:43.576: D/TelephonyNetworkFactory(1113): Cellular needs Network for NetworkRequest [ id=18, legacyType=-1, [ Transports: CELLULAR Capabilities: NOT_RESTRICTED] ]
09-18 18:50:43.576: D/ConnectivityService(769): listenForNetwork for NetworkRequest [ id=19, legacyType=-1, [ Transports: CELLULAR Capabilities: NOT_RESTRICTED] ]
09-18 18:50:43.577: D/ConnectivityService(769): handleRegisterNetworkRequest checking NetworkAgentInfo [WIFI ()]
09-18 18:50:43.841: I/am_create_service(769): [0,510459843,.EventLoggerService,10022,2161]
09-18 18:50:43.855: I/am_create_service(769): [0,271933548,.GetToken,10009,1339]
09-18 18:50:43.899: I/am_create_service(769): [0,609002555,.GoogleAccountDataService,10009,1339]
09-18 18:50:43.902: W/GLSUser(1339): GoogleAccountDataService.getToken()
09-18 18:50:43.910: I/am_destroy_service(769): [0,609002555,1339]
09-18 18:50:43.914: I/am_destroy_service(769): [0,271933548,1339]
09-18 18:50:43.996: I/sf_frame_dur(197): [com.google.android.googlequicksearchbox/com.google.android.launcher.GEL,89,0,2,0,1,2,1]
09-18 18:50:44.299: I/am_destroy_service(769): [0,510459843,2161]
09-18 18:50:44.760: I/art(16309): Heap transition to ProcessStateJankImperceptible took 6.712188ms saved at least 830KB
09-18 18:50:48.070: I/auditd(17031): type=1400 audit(0.0:900): avc:  denied  { getattr } for  comm="ls" path="/persist" dev="mmcblk0p16" ino=2 scontext=u:r:shell:s0 tcontext=u:object_r:persist_file:s0 tclass=dir
09-18 18:50:48.579: I/am_on_resume_called(16964): [0,com.example.networktest.MainActivity]
09-18 18:50:48.587: D/CanvasContext(16964): Render dirty regions requested: true
09-18 18:50:48.592: I/am_destroy_service(769): [0,565414612,1339]
09-18 18:50:48.597: I/art(2161): Heap transition to ProcessStateJankImperceptible took 109.715785ms saved at least 2MB
09-18 18:50:48.626: W/Adreno-GSL(16964): <ioctl_kgsl_device_getproperty:663>: mmap failed: errno 22 Invalid argument
09-18 18:50:48.626: I/Adreno-EGL(16964): <qeglDrvAPI_eglInitialize:320>: EGL 1.4 QUALCOMM Build: I10246dbd022c719c705be805d5642cc8fdfbd2a2Date: 03/07/14
09-18 18:50:48.626: I/CanvasContext(16964): Initialized EGL, version 1.4
09-18 18:50:48.644: I/art(1149): Heap transition to ProcessStateJankImperceptible took 75.768178ms saved at least 2MB
09-18 18:50:48.644: D/OpenGLRenderer(16964): Enabling debug mode 0
09-18 18:50:48.650: I/art(1252): Heap transition to ProcessStateJankImperceptible took 92.615158ms saved at least 384KB
09-18 18:50:48.688: I/am_activity_launch_time(769): [0,145055245,com.example.networktest/.MainActivity,5230,5230]
09-18 18:50:48.688: I/ActivityManager(769): Displayed com.example.networktest/.MainActivity: +5s230ms
09-18 18:50:48.904: I/sf_frame_dur(197): [Starting com.example.networktest,1,0,0,0,0,0,0]

编辑： Google bug raised 1 Google bug raised 2 是什么 “没有为此更改输入评论”是来自谷歌的意思吗？

谢谢

尼丁

Answer 1

终于找到了解决方案。诀窍是使用NET_CAPABILITY_INTERNET 的功能。与 startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, FEATURE_ENABLE_HIPRI);

相同

See the Firmware design here

builder.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET);
builder.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR);

在此之后，我能够从系统获得onAvailable 回调，然后我将我的进程默认网络设置为移动数据。

因此，即使 wifi 开启，所有请求也会通过移动数据传输。哇！

注意：这在 Preview L 的初始版本中不起作用。

2015 年 19 月 10 日编辑：setProcessDefaultNetwork is now depcreated use bindProcessToNetwork

Answer 2

这里有一个函数可以为您的应用程序简化首选某些类型的网络的操作（应该适用于任何当前的 API 级别（截至撰写时为 26）：

private void alwaysPreferNetworksWith(@NonNull int[] capabilities, @NonNull int[] transportTypes) {

    NetworkRequest.Builder request = new NetworkRequest.Builder();

    // add capabilities
    for (int cap: capabilities) {
        request.addCapability(cap);
    }

    // add transport types
    for (int trans: transportTypes) {
        request.addTransportType(trans);
    }

    final ConnectivityManager connectivityManager = (ConnectivityManager) getApplicationContext().getSystemService(CONNECTIVITY_SERVICE);

    connectivityManager.registerNetworkCallback(request.build(), new ConnectivityManager.NetworkCallback() {
        @Override
        public void onAvailable(Network network) {
            try {
                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
                    ConnectivityManager.setProcessDefaultNetwork(network);
                } else {
                    connectivityManager.bindProcessToNetwork(network);
                }
            } catch (IllegalStateException e) {
                Log.e(TAG, "ConnectivityManager.NetworkCallback.onAvailable: ", e);
            }
        }
    });
}

用法：

// Add any NetworkCapabilities.NET_CAPABILITY_...
int[] capabilities = new int[]{ NetworkCapabilities.NET_CAPABILITY_INTERNET };

// Add any NetworkCapabilities.TRANSPORT_...
int[] transportTypes = new int[]{ NetworkCapabilities.TRANSPORT_CELLULAR };

alwaysPreferNetworksWith(capabilities, transportTypes);