I want to ask about native app development. My client asking me for making application where the app can easily remove another app on the device (I mean Uninstall another app programmatically) with a spesific shortcut (for example maybe by shake device etc). It's possible to make this app on newest android OS?
if possible, can you give me a reference? or example code to remove another app? thank you!
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I am a beginner in android development. I want to know that is it possible to know the app which is opened currently. I came to know that finding the apps which are running currently through Activity Manager (getRunningTasks()) is now removed from the Android studio. So I want to know is there any other way to know? I just want to know the app which is opened and running currently on the mobile but not the apps running in the background Could somebody please help me in this case?
You can use AccessibilityService to get event notification. But AccessibilityService are specifically for accessibility uses. If you use the service for other purposes, then the application will more likely to be downed/removed for PlayStore due to policies. Another viable option is UsageStatsManager, but with some limitations.
UsageStatsManager is not push event based system. You have to poll in few mills(depends upon the use-case)
Usage Access Permission grant/deny is not straight forward. You have to start Setting Activity with Settings#ACTION_USAGE_ACCESS_SETTINGS action and have to rely on the users understanding of how to grant permission(Since permission list may contain other applications).
#English isn't my first language.
So many questions..
Can I launch my project without emulator on android studio? Something like in libgdx?
Or how I can change emulator? (need low requirements)
You can set up your phone in order to display the app you are developing withoup needing the android emulator itself. You must enlable developer options and maybe install some drivers. Check this links:
https://developer.android.com/studio/debug/dev-options?hl=en-419
https://developer.android.com/studio/run/device
When everytihing is done you should be able to run the app in your phone
I've written an android app in Android studio, and would like to add android wear functionality. I've looked into it online, but I can only find help on how to make a stand-alone android wear app. Is it not possible for me to just add a new activity to the application that is used by the smart watch, or do I have to create a whole new app for the smart watch that requests data from the main phone application?
It depends on what it is you need the wear app to do?
In the past I have decided all I actually needed was the ability to respond to notifications on the watch so therefore I just modified the notifications to work well on android wear.
Example. https://developer.android.com/training/wearables/notifications/creating.html
But if for example you need the ability to start the app from the watch and work without any phone interaction, you will need to create a stand alone android wear module.
I know it's not the best practice, but it is a requested feature (e.g. for business apps). When the App gets installed, I need to automatically place it on the home screen. I saw a lot of code on the internet, but all of the code only works on button click when the app starts. But I need to place a shortcut on the homescreen immediately after the app is installed and before the app starts. Is there a way I can achieve this?
PS: To make the question more clear: The app will be distributed without Google Play Store, so that's not an option.
Thanks for your help!
Best regards,
Robin
You can't run any code in your application before the user starts your application for first time during to restrictions since Android 3.1. Check this for more information
That's an optional feature of the Market app, not of the apps themselves. When designing an application , it does not receive a broadcast about itself being installed.
the first time the app launched can create it.
You can achieve that by creating a method in your main activity and call this method from oncreate and create a boolean variable andsave it in shared preferences
I created an Android app which communicates via USART with a µC in order to evaluate data. My co-workers and customers should use the tablet for only this purpose now. Is there any possibility to "hide" the Android OS or making it inaccessible?
Devices are rooted and I am willing to build custom ROMs (even though I do not have any experience with that yet). Are there any approaches available that I do not have to start from scratch?
Many thanks for your help.
Well. That what I'm trying to do !
The first thing I tried was to start the app just after the boot of the device (Quite easy with this).
Then, I get Android source code, and I hide the bottom bar using this code
The problem is, if your application is not stable ... you'll have some problem.
If you want to modify Android source code, the developper doc contains a very good tutorial to start !