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The use case:
I want my kids to do some extra home work before they can play their favorite games on the phone. So, when they try to lauch these apps, I want my app to be lauched first. Only after they have finished certain tasks, say a couple of multiple choice questions, can they close my app and continue to their intended apps.
Is this possible to implement in Android? How?
You could do this -- not with an app, but with a custom launcher. You could create a launcher that knows which apps are the "fun" apps and which are the "learning" apps.
Do a search on "android build custom launcher" to get started in the right direction.
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I am getting installed widgets but I need to find out only running widgets of home screen. Is there any possible solution.
Thanks in advance.
Write your own home screen implementation, where you allow the user to add app widgets to that home screen. Then, you will know what the "running" app widgets are.
Other home screen implementations do not have to publish this information to third parties, and hopefully they do not, for privacy and security reasons.
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How do you show the user, how to use the app. Is there a tool or something which allows the user to learn how to use it, like a tutorial.
Or what would you do?
By the way, in my app, the user just needs to understand which button needs to be clicked. Basically, he must pick the correct button according to the background color.
To show or introduce your app to the user is called as show casing your app/views(we can say aka tutorial).
You can make your own showcasing animations but there are some libraries for that purpose
ShowCaseView
spotlight(my favourite one)
You can easily implement that by reading some more stuff about showcasing app or views
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I am new to android. I am currently looking for developing a android application which quickly needs to enable my application.
It may be pressing a power button or volume button in a specific pattern or taping the screen continuously.
I doesn't want to use the screen light on or off since it activates my application for some random reason.
Android does not have a built in feature that lets you run an application by pressing the hardware keys.
A possible solution would be to run a service that intercept the volume keys (https://stackoverflow.com/a/7130685/2804473). This solution will probably be too intrusive for the end user though.
I would not recommend your proposed idea. Instead, play by the given "rules" that the Android environment provides. You might want to use a Widget instead? If the hardware-trigger is that important, maybe you should take a look at accessories such as Pressy (https://play.google.com/store/apps/details?id=com.pressy.app) or similar?
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I have specifications from my employer. He wants me to track the use of 3rd party apps from inside of our application. Our application is suppose to act as an operating system. We launch 3rd party apps from our application. Is there any way to track how long a user is using these apps?
The only thing I could think of is starting the timer when I start the intent to launch the app, and upon return to our application stopping the timer. Any ideas on a more concrete idea? Thank you in advance.
Have you looked into Interacting with Other Applications does any of that apply? Your method does seem like the only possible way but I would do it by checking the system time in the onPause and onResume J.I.C your stops whilst being on the other app :) Hope I helped!
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I want to build an app which consists of two apks installed separately in device. The first one is main app and other is dependent.
One I thought of is my main app will get the updates from the device, through implementing BroadcastReceivers and then it will send updates to the dependent application through custom BroadcastReceiver.
An example is Go locker app. It have a main app and themes (are installed separately).
I want to know the ways I can go through and also please suggest me the best ways to achieve this.