The value of this property may be nil if the app is running in the background, before the user has unlocked the device the first time after the device has been restarted. If the value is nil, wait and get the value again later. The value in this property remains the same while the ...
设备指纹唯一性、设备篡改可识别性,以同盾为例子,同盾在生成设备指纹唯一ID时,相应的生成了一些其他组合的DeviceId。 首先当用户篡改设备并且我们存储的设备指纹都被清了时(恢复出厂),依然可以根据其中一组DeviceId识别设备。 说下我知道的几种DeviceId组合:(优先根据设备信息恢复,其次根据本地存储) 1. imei + udid...
LeanCloud 。LeanCloud我好像听人吐槽bug多，但是如果自己团队来开发后台的话，照样bug也会一堆，而且还...
Error result indicating that this user is not allowed to add other users on this device. UserOperationErrorCurrentUser Obsolete. Indicates user operation failed because the target user is in the foreground. UserOperationErrorLowStorage Obsolete. Indicates user operation failed because device has ...
DeviceIdDefault The default device ID, which is the ID of the primary (non-virtual) device. (Inherited from Context) DeviceIdInvalid Invalid device ID. (Inherited from Context) DeviceLockService Use with #getSystemService(String) to retrieve a android.devicelock.DeviceLockManager. (Inherited...
Lockdown mode can be set by an appropriately privileged user via the Settings VPN menus, or by the Device Policy Manager app programmatically. See DevicePolicyManager#setAlwaysOnVpnPackage(ComponentName, String, boolean, Set) Java documentation for android.net.VpnProfileState.isLockdownEnabled(). Po...
This time we’ll just pass the value to the system and let the system handle the brightness of the device instead of setting it manually. Settings.System.putInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, brightness);...
DeviceIdDefault The default device ID, which is the ID of the primary (non-virtual) device. (Inherited from Context) DeviceIdInvalid Invalid device ID. (Inherited from Context) DeviceLockService Use with #getSystemService(String) to retrieve a android.devicelock.DeviceLockManager. (Inherited...
Android Marshmallow prevented users from accessing the Wi-Fi MAC address of the device programmatically through WifiInfo.getMacAddress(), and it just returned the fixed string “02:00:00:00:00:00”. This led to developers trying to find workarounds to circumvent the restriction with different AP...
Keeping the Device Awake To avoid draining the battery, an Android device that is left idle quickly falls asleep. However, there are times when an application needs to wake up the screen or the CPU and keep it awake to complete some work. ...