Android device(4.0 or above) GPS turn on/off

Question

对于Android设备（4.0或更高版本），是否可以使用Java代码关闭/打开GPS，而无需用户使用“设置”？

Answer 1

After Android 2.3 it is no longer possible. Only apps signed with manufacturer platform certificate can use that permission.

The correct thing is to send the user to the location settings page, and let him enable GPS if he wish. eg,

Intent i = new
 Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(i);