是否有可能确定一个Android设备是否插入电脑或只是权力？ [英] Is it possible to determine whether an Android device is plugged into a computer or just power?

问题描述

如果Android设备被插入电脑或只是权力我想知道是否有可能确定具体。

I was wondering if it was possible to specifically determine if an Android device was plugged into a computer or just power.

主要的原因是我想为我的手机保持清醒，当它插入电脑，而我正在开发，但不能当它插入电源插座一个晚上。

The main reason is I'd like for my phone to "Stay Awake" when it's plugged into a computer while I'm developing, but not when it's plugged into a power outlet a night.

我在想，如果我可以告诉什么，我连接，我可以用ACTION_POWER_CONNECTED启动服务和检查什么USB我连接。

I was thinking that if I could tell what I'm connected to, I could use ACTION_POWER_CONNECTED to start up a service and check what USB I'm connected to.

推荐答案

我居然发现选择是否通过查看源以保持当插入AC，USB或放在画面<确切的方式href=\"http://google.com/$c$csearch#409TP6F96yI/src/com/android/settings/DevelopmentSettings.java&l=95\" rel=\"nofollow\">http://google.com/$c$csearch#409TP6F96yI/src/com/android/settings/DevelopmentSettings.java&l=95

I actually found the exact way to choose whether to keep the screen on when plugged into AC, USB or either by looking into the source at http://google.com/codesearch#409TP6F96yI/src/com/android/settings/DevelopmentSettings.java&l=95

需要的权限： android.permission.WRITE_SETTINGS

Settings.System.putInt(getContentResolver(), Settings.System.STAY_ON_WHILE_PLUGGED_IN,
                mKeepScreenOn.isChecked() ?
                (BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB) : 0);

有关AC： BatteryManager.BATTERY_PLUGGED_AC

有关USB： BatteryManager.BATTERY_PLUGGED_USB

对于任何一个：（BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB）

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