Having a problen to develop lockscreen for android - android

I want to develop an android application that will be an alternative lockscreen.
I searched a lot and i couldn't found an explanation about how to make an app to work like a lockscreen. I understand that there is no official android API for lockscreens, but there must be way, because there are a lot of alternative lockscreens applications in the market.
Does someone know how could i make my app work like a lockscreen? Or if there is a basic code out there of lockscreen app that i can learn from it how to do it?
Thanks a lot (:

The way this is usually accomplished is creating an app that becomes the home application and then when the screen is turned on display your custom lockscreen and hide it when the user successfully unlocks it so they can use the device.
Make sure to take a look at the numerous questions on SO that are very similar to this.

Related

Display Application widget on Lock screen android

I am stuck with one of my client requirement , it seems not be feasible to me as i am not able to find anything related to this particular requirement.I am goggling but does not came up with proper clue.I though studied the below mentioned link which states that it is not supportive . Here is the link :-
How to force a widget to appear on lock screen programmatically (Android)
i just want to confirm that is it feasible ? Or this can be achieved by making custom lock screen for application.
Here is what my client requirement is :-
I need your suggestion here , please let me know .
Thanks
i just want to confirm that is it feasible ?
As I wrote in the answer to the question that you linked to, the standard Android lockscreen framework only supports app widgets from Android 4.1 through 4.4, which is a steadily shrinking portion of the Android device ecosystem.
Or this can be achieved by making custom lock screen for application.
Android does not support the creation of custom lockscreens, other than by building your own modified version of Android, poured into your own custom ROM, installed onto whatever hardware your custom ROM supports.
There are plenty of developers who claim to create custom lockscreens. Those actually require you to disable the device lockscreen, then their apps attempt to interpose themselves between the user and ordinary apps. At the best of times, this offers weaker security.

How to put app widgets on lockscreen in android?

I read on 'developer.android.com' that from Android 5.0 and higher, lock-screen widgets are not valid. If this is the case, then how is it possible for an app called 'Slidejoy' to show widgets on lockscreen, when the enable lockscreen feature is activated in the app?
I tried searching for the same but the only things I found were that I need to install apps like Notifidgets, NotifWidgets to achieve that functionality.
If it's possible in those apps, then there must be some way.
Kindly help.
Thanks.

Pre-LockScreen Application

Is it possible to develop an application that can be accessed from infront of the lock screen for either iOS or Android?
If so please provide links to relevant documentation?
Not for IOS or maybe with a jailbreak but even like this I don't think so.

How can I develop an app able to actually replace lockscreen? [duplicate]

I know that there is already some apps can do this, such as:
WidgetLocker Lockscreen
Flyscreen
I want to know how to do this in my app? What classes I can use? Or what articles I should read? I don't want to change the Android's source code.
And I wonder if it will be different to deal with when the screen is locked by draw pattern?
Have a look at this answer. You need to write your own home screen app which will implement the lockscreen behaviour that you require. There is sample code for writing your own home screen app in the Android SDK.

How to customize Android's LockScreen?

I know that there is already some apps can do this, such as:
WidgetLocker Lockscreen
Flyscreen
I want to know how to do this in my app? What classes I can use? Or what articles I should read? I don't want to change the Android's source code.
And I wonder if it will be different to deal with when the screen is locked by draw pattern?
Have a look at this answer. You need to write your own home screen app which will implement the lockscreen behaviour that you require. There is sample code for writing your own home screen app in the Android SDK.

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