Java 如何在Android中以编程方式锁定屏幕？
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How to programmatically lock screen in Android?
提问by Mecid
Possible Duplicate:
Lock the android device programatically
可能的重复：
以编程方式锁定 android 设备
How can I programmatically lock the screen in Android?
如何在 Android 中以编程方式锁定屏幕？
回答by YoK
Check this class : com.android.internal.policy.impl.LockScreen
检查这个类：com.android.internal.policy.impl.LockScreen
Referenced from here: Can you lock screen from your app?
从这里引用：你可以从你的应用程序锁定屏幕吗？
Also check code for enabling and disabling lock Screen in Android. (Referenced from here)
还要检查在 Android 中启用和禁用锁屏的代码。（从这里引用）
KeyguardManager keyguardManager = (KeyguardManager)getSystemService(Activity.KEYGUARD_SERVICE);
KeyguardLock lock = keyguardManager.newKeyguardLock(KEYGUARD_SERVICE);
For locking the screen use,
对于锁定屏幕使用，
lock.reenableKeyguard();
and for disabling the lock use,
和禁用锁的使用，
lock.disableKeyguard()
回答by Adam
In order to do this you need to use the Device AdministrationAPI that was added in (I think) 2.2. Once your app is registered on the device as a device administrator, you can then use DevicePolicyManager.lockNow() to lock the screen. The DeviceAdmin sample application in the SDK is a good place to look as well.
为此，您需要使用（我认为）2.2 中添加的设备管理API。一旦您的应用在设备上注册为设备管理员，您就可以使用 DevicePolicyManager.lockNow() 来锁定屏幕。SDK 中的 DeviceAdmin 示例应用程序也是一个很好的查看位置。
