我有，我希望能够用它来从一​​个远程查询的连接状态报告的应用程序。

I have an app that I want to be able to use to get a connection status report from a remote query.

我想知道，如果无线网络连接，如果数据访问启用了移动网络。

I want to know if WiFi is connected, and if data access is enabled over mobile network.

如果WiFi超出范围，我想知道如果我能依靠移动网络上。

If the WiFi goes out of range I want to know if I can rely on the mobile network.

问题是，数据启用，当我通过无线网络连接总是返回为真，我只能正确查询移动网络时，通过无线网络没有连接。

The problem is that data enabled is always returned as true when I am connected by WiFi, and I can only properly query the mobile network when not connected by WiFi.

所有我见过的答案建议投票查看当前连接的是什么，但我想知道，如果移动网络可用，我应该需要它，即使我可以通过无线网络在present连接。

all the answers I have seen suggest polling to see what the current connection is, but I want to know if mobile network is available should I need it, even though I might be connected by WiFi at present.

在告诉移动网络数据是否已启用不投票，看看是否连接那里呢？

Is there anyway of telling whether mobile network data is enabled without polling to see if is connected?

修改

因此​​，通过无线网络连接。如果我去设置，取消选择数据已启用，然后在我的应用程序，当我做到这一点：

So when connected by WiFi If I go to settings and deselect 'Data Enabled' and then in my app I do this:

 boolean mob_avail = 
 conMan.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isAvailable();

mob_avail返回为真，但我有禁用移动网络数据，所以我会想到它是假

mob_avail is returned as 'true', but I have disabled Mobile Network Data, so I would expect it to be 'false'

如果我关闭了WiFi，有（正确地）没有联系，因为我有残疾的移动网络数据。

If I turn off the WiFi, there is (rightly) no connection as I have disabled mobile network data.

让我怎么检查，如果移动网络数据被启用时，我通过无线连接？

so how do I check if mobile network data is enabled when I am connected by WiFi?

更新

我看了看getAllNetworkInfo（）由ss1271提出的意见

I took a look at getAllNetworkInfo() as suggested in the comments by ss1271

我输出以下三个条件下返回有关移动网络的信息

I outputted the info returned about the mobile network under the following 3 conditions

WiFi关闭 - 移动数据对

WiFi Off - Mobile Data on

WiFi打开 - 移动数据关闭

WiFi On - Mobile Data off

WiFi打开 - 移动数据对

WiFi On - Mobile Data on

和得到以下结果：

随着WiFi关闭：

移动[HSUPA]，状态：连接/关连，原因是：未知，多余的：   互联网，漫游：假故障：假的，isAvailable：真正的，   FEATUREID：-1，userDefault：假

mobile[HSUPA], state: CONNECTED/CONNECTED, reason: unknown, extra: internet, roaming: false, failover: false, isAvailable: true, featureId: -1, userDefault: false

随着无线开/关移动

的NetworkInfo：类型：移动[HSUPA]，状态：DISCONNECTED /断开，   原因：connectionDisabled，多余的：（无），漫游：假的，   故障：假的，isAvailable：真，FEATUREID：-1，userDefault：   假

NetworkInfo: type: mobile[HSUPA], state: DISCONNECTED/DISCONNECTED, reason: connectionDisabled, extra: (none), roaming: false, failover: false, isAvailable: true, featureId: -1, userDefault: false

随着无线开/移动在

的NetworkInfo：类型：移动[HSPA]，状态：DISCONNECTED /断开，   原因：connectionDisabled，多余的：（无），漫游：假的，   故障：假的，isAvailable：真，FEATUREID：-1，userDefault：   假

NetworkInfo: type: mobile[HSPA], state: DISCONNECTED/DISCONNECTED, reason: connectionDisabled, extra: (none), roaming: false, failover: false, isAvailable: true, featureId: -1, userDefault: false

因此​​，大家可以看到，每次isAvailable返回真实的，国家只表现为断开时的WiFi于影响。

So as you can see isAvailable returned true each time, and state only showed as Disconnected when WiFi was in affect.

澄清

我是不会看看是否我的手机是由移动网络当前连接。 我AM 试图建立用户是否已经启用了移动网络/禁用数据访问。 >无线和网络设置 - - 他们可以去设置和关闭打开此>移动网络设置 - >已启用数据

I am NOT looking to see if my phone is currently connected by Mobile Network. I AM trying to establish whether or not the user has enabled / disabled Data access over mobile network. They can turn this on and off by going to Settings -> Wireless and Network Settings ->Mobile Network Settings -> Data enabled

推荐答案

以下code会告诉你，如果移动数据已启用与否，不管是否有一个移动数据连接活跃在那一刻，或无论是否wifi的启用/激活。这code只能在Android 2.3（姜饼），后来。 其实这code也适用于早期版本的Andr​​oid，以及; - ）

The following code will tell you if "mobile data" is enabled or not, regardless of whether or not there is a mobile data connection active at the moment or whether or not wifi is enabled/active or not. This code only works on Android 2.3 (Gingerbread) and later. Actually this code also works on earlier versions of Android as well ;-)

    boolean mobileDataEnabled = false; // Assume disabled
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    try {
        Class cmClass = Class.forName(cm.getClass().getName());
        Method method = cmClass.getDeclaredMethod("getMobileDataEnabled");
        method.setAccessible(true); // Make the method callable
        // get the setting for "mobile data"
        mobileDataEnabled = (Boolean)method.invoke(cm);
    } catch (Exception e) {
        // Some problem accessible private API
        // TODO do whatever error handling you want here
    }

请注意：您需要有权限 android.permission.ACCESS_NETWORK_STATE 才能够使用这个code

Note: you will need to have permission android.permission.ACCESS_NETWORK_STATE to be able to use this code.