You have already had the opportunity to try Android Lollipop 5?
I'm trying the porting on Xiaomi Mi2 for almost a week now and I must say that - despite being a test version - it is very beautiful and functional, but also fluid at the same time. The innovations introduced were several, however - despite the various previews released - the first official version arrived on our terminals with some problems.
On the net some users complain of a poor battery life, some blogs have reported the impossibility of setting the silent mode and so on, but at the same time we also talk about a new version, Android 5.1, which will most likely solve these bugs.
One of the problems that I have found concerns one of the new features: the pine of applications, or lock on screen in Italian and should only cover devices with physical keys. I had described the function in this article, where I also listed all the features a bit.
Il pine of an application (which can be activated through the settings, therefore disabled by default) allows the user to lock the screen on an application through a special key visible in multitasking.
So far so good: I open multitasking, stop the button and block the use of the smartphone on that particular application and nobody can use others without knowing my sequence; the problem occurs at the time of unlocking: to access the multitasking on the Nexus and on all the devices with virtual keys there is a dedicated button, then accompanied by the home button and back (the navbar for instance). With the physical keys, on the other hand, the key for accessing multitasking is simulated by the long press on the home key in most terminals, and here the situation becomes more complicated.
To unlock the "pinnata" application, press the button simultaneously back e multitasking (overview), but as we said the latter is simulated with a prolonged pressure, then the phone cannot be unlocked, if not restarting it.
In fact, this might NOT be a problem for Google because Nexus and most Google Play edition devices come with virtual keys. It is therefore - as I see it - custom brands and ROMs change the shortcut for unlocking or allowing you to remap the physical keys. But, obviously, we already know that the CyanogenMod allows both to remap the keys and to simulate the virtual ones, so there should be no problem, or so we hope!