android remove screen lock disabled by administrator

);ComponentName = new ComponentName (this, myreceiver.class);if (policymanager.isadminactive (componentname)) {//To determine if a permission is available (Device Manager activated)Policymanager.locknow ();//Direct lock screenFinish ();} else {Activemanager ();//Activate Device Manager Get PermissionsFinish ();}}/*** Get lock Screen permissions*/private void Acti

1, Android screen illuminated steady/light Copy Code code as follows: Keep Screen illuminated steady PowerManager pm = (powermanager) getsystemservice (Context.power_service); Mwakelock = Pm.newwakelock (Powermanager.full_wake_lock | Powermanager.acquire_causes_wakeup, Lock_tag); Mwakelock.acquire (); Copy Code code as follow

( ); }} else {if (Mscreenstatelistener! = null) {Mscreenstatelistener.onscreenoff (); }}} private void Registerlistener () {if (Mcontext! = null) {Intentfilter filter = New Intentfilter (); Filter.addaction (intent.action_screen_on); Filter.addaction (Intent.action_screen_off); Filter.addaction (intent.action_user_present); Mcontext.registerreceiver (mscreenreceiver, filter); }} private void Unregisterlistener () {if (Mco

Customize a pretty practical lock screen app, if you can win the user's approval, replace the system with the lock screen, is definitely a small day live entrance. This time is just a summary of the difficulties in the recent research on the Android platform's

The realization of thought:The Windowmanagerservice loop reads the following key information and distribution forms. Filtering of messages in the Phonewindowmanager.interceptkeybeforequeueing method.Therefore, the implementation is to listen to the current key in the Interceptkeybeforequeueing method before the message is distributed to the volume key, assuming the current state is the lock screen state. An

When an android alarm is triggered, press the power key to lock the screen. Two screen locks are played.Two locks are triggered because Keyguard is locked when the screen is hidden, and then keyguard is automatically unlocked because FLAG_DISMISS_KEYGUARD windowsParam is set

Implementation ideas:The Windowmanagerservice Loop reads the following key messages and distributes them to the window, filtering the messages in the Phonewindowmanager.interceptkeybeforequeueing method before the message is distributed. Therefore, the implementation of the message before the distribution of the Interceptkeybeforequeueing method to listen to the current key is the volume down key, if the current state is the lock

Generally, when an Android phone is not used, it uses the power key to lock the screen and turn off the screen light. In fact, from API Level 8 (Android 2.2), Android provides the devicepolicymanager class, allowing your applicat

When an Android phone (which should be the case for all mobile phones) receives a text message or call, the screen is automatically lit and the screen lock is unlocked for immediate operation, the following code is used to implement this function:Keyguardmanager Km = (keyguardmanager) getsystemservice (context. keyguar

); Loaddefaulthapticsettings (stmt); Stmt.close ();Copy code from the code we can see that if Settings.System.SCREEN_OFF_TIMEOUT is not initialized (the first time the system starts, the field is definitely not initialized), it will take advantage of the r.integer.def_screen in the resource _off_timeout to initialize. In order for the system to never lock the screen, we need to set the resource r.integer.de

Objective To achieve the window on the lock screen, the first idea is to WindowManager use Window settings Flag , by setting Flag the display priority to let the window display in the top of the lock screen. The next step is to experiment with potentially relevant Window Type properties and verify that the scenar

Android development skills-similar to the new version of QQ screen lock pop-up window, android development skills The new version of qq can display qq messages in the pop-up window under the screen lock. This function is also requ