android设备功能检测 [英] android device capability detection

问题描述

我正在尝试确定正在运行的设备是否具有发送/接听电话，电子邮件和SMS的功能。

i'm trying to determine if the device i'm running on has the capability to send/receive phone calls, email, and SMS.

我发现我可以使用TelephonyManager来获取设备的电话号码，并且在无法拨打电话的设备上，该电话号码为空。这是一个问题。我仍然没有找到检测电子邮件和SMS能力的方法。

i found that i can use the TelephonyManager to get the devices phone number and on devices without the capability of making calls the phone number is null. that's one problem down. i still haven't found a way to detect email and SMS capability.

推荐答案

如果没有小区信号，SMS可能就没有用了，所以您可以使用相同的技巧。

SMS is probably futile without a cell signal, so you can use your same trick for that.

对于电子邮件（=网络），您可以在 NetworkInterface.getNetworkInterfaces（ ），然后查看设备是否已连接。如果您可以连接到互联网，则可以发送电子邮件。

As for email (=networking), you can probably iterate through your devices in NetworkInterface.getNetworkInterfaces() and see if the device is connected. If you can connect to the internet, you can send emails.

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