Use of android lockscreen in an application for security purposes - android

I am new to android and I am trying to make a security based app in which I want create android lock screen which appears after clicking an item of list view.
Am I suppose to use the same lock screen code as available and make some changes?
I tried to search for my problem but couldn't find anything.
Thanks in advance .

See http://developer.android.com/guide/topics/admin/device-admin.html

Related

Is it possible to make an Android/iPhone app which will show info on a locked screen?

I want to make an app (for both Android and iPhone) where user puts some info to the app and that info (text) will be then permanently shown on a lock screen. Is it possible to make something like this? If yes, how please?
You can't show any info permanently on lock screen on iOS. There is no App Extension for that. But, something close to that can be done by creating Today Widget in iOS. The widget can be viewable even when device is locked. You just need to swipe down. For more info on creating it. Please look into the following tutorial:
https://www.appcoda.com/app-extension-programming-today/
Seems you can only add notifications. What you are referring to would involve jailbreaking.

Can I make Pattern Password Screen Locker android app

Has anyone got experience with developing an application to replace the default lock screen? I've been told it is not possible, however this application manages it.
Any tutorials or guidance you know of would be appreciated.
100% possible. Here are some links to get you started.
Android App and Pattern Lock Screen
Android Lock Screen Widget
Developing a custom lock screen
Try this one:
lockscreenswitchwidget
You can implement deviceAdminReciever to use device locks and all please have a look at this it explains everything about locks setting passwords.....
Update:
Use this library Link
and Source Here..

android: how to add an entry in the lock screen settings?

I want to create a custom screen lock/unlock widget and to configure it in the "standard" screen lock settings menu.
Is it possible programmaticaly to add new entries in the settings standard menus?
If yes, how? Can someone provide a code example?
Thank you.
The lock screen runs in a totally separate sandbox environment which makes it inaccessible to third party apps. This is currently not supported by Android. Sorry.

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 detect which application is set as default in android?

I am stuck with a problem. In the past, i set an application as default launcher on my android phone when the dialog popups up for selecting the default application and now i have forgot which application it was?
How can i detect which application has been set as default?
Any help appreciated.
Unless your aim is to do this programattically(I don't think you can, but I could be wrong) This would be a better fit at Android Stack Exchange
The easiest way will probably be to go into manage applications and find all of the home screen ones, select each of them and scroll down until you see the "Clear defaults" button. The one that is not greyed out is the one that is currently set for default.

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