I'm new in Android and I am planning to develop a post-it card Android app. After editing one card, the user could post it on the screen, so every time a user unlocks his phone he will see a little card posted on the home screen. So are there any materials and resources I can learn to realize that effect? Thanks in advance!!
You can interact with the homescreen through widgets. You can start learning about them here:
http://developer.android.com/guide/topics/appwidgets/index.html
You could also start looking into the 2D graphics framework. Here:
http://developer.android.com/guide/topics/graphics/2d-graphics.html
There are also a lot of tutorials and examples provided by the community, but if you are new to android I think it will be a long way to accomplish what you just mentioned.
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I am a student working on a senior project. It will be a very simple android app to organize karaoke. We are using Flutter for the front-end work.
My education has been in Java, but this is my first time working with Dart/Flutter, let alone on a smartphone app. I have gone through Get Started (https://flutter.io/get-started/), as well as 2-3 step-by-step youtube tutorials that help you build very simple apps from scratch. These have been helpful, but I'm still having trouble wrapping my head around the organization of a Flutter app. All tutorials say "everything is a widget", as if that should make things simple. And maybe it does in the end. But I end up with so many widgets, and I am getting confused about what widget should be inside what other widget and why.
Take a look at this picture (in the middle of the picture I have the widget-tree on display). I have a stack, two columns, scaffold, container, etc. Do I really need all of those? Is this normal for a simple login page?
What helped you get a grip on Flutter? Or maybe it is app development, rather, that I am having trouble understanding. Regardless, I am getting a bit discouraged. Any advice? Maybe there is a particular tutorial that helped you a lot?
Thank you for any help.
I like to learn by downloading and running examples from the developers (like these ones in their GitHub repo).
One thing I struggled with at first too from the whole "everything is a widget" idea was figuring out how to handle state / data changes appropriately. If you're struggling with that, this Google I/O video does a great job showing how you can better architect an app in regard to handling state in a reactive way. A bit more advanced, but from beginning to end they go from their opinion on the worst way to handle state changes to their recommended way(s).
I am bit confused and i could not find answer to my question. Almost all the mobile application try to take us to different page or screen when we try to search. Can anybody explain me the philosophy behind taking user to a new screen on search rather searching on same screen and refreshing data?
Any links or examples to clear my doubt would really appreciable.
Android Provides a SearchInterface which helps a developer to easily integrate search functionalities and for that you have to create a SearchableActivity that is why everyone uses a different activity for that,
more info at https://developer.android.com/training/search/setup.html
Hi I have been asked to develop an android app as part of my course. It has been agreed upon that this will be a quiz based app which will make use of graphical animations to provide questions for users to answer.
I have no experience in programming any graphics apart from a few tutorials I have looked at. I am wondering if it is possible to create images in photoshop and then use these as objects that will be manipulated via methods or will all graphics have to be created via coding. Any help in the situation would be greatly appreciated.
Thanks
Use Android Animations.
Since it's a quiz based app, you might be interested in using Card Flip Animations, where on one face of the card you show the question and on the other face, have the answer.
There is also an excellent tutorial by Vogella on Animations.
Hi friends i am planned to work on user interface part, i wanted to make my own user interface for my gallery application. for example gallery view should be in semi circular view. can any one suggest me on this
Thanks in advance
Do you want something like this!!
you can find it in this link
sorry but the link is in french language but you can find sources in the bottom of the page Mirror links
You should start by learning more about the Gallery in general. This link would make a good start.
Understand that code, go through the tutorials and begin experimenting on making incremental changes and seeing if they work.
Using this knowledge and prototype code start thinking about how you might go about creating your custom semi-circle gallery. Experiment and try some different things.
When/if you run into any issues or specific problems, post your question on a new thread and I'm sure you will find people willing to help you out.
I know that there are many screen locker applications that can replace the current android lock-screen. I want to develop my own screen locker application and I want to find out if there are any tutorials on how to write a software that changes the functionality of the android firmware such as the current lock-screen. I have searched through the internet but I haven't managed to find any good tutorials.
Thanks for your time. Any help is really appreciated.
I have found a lot of useful information into the presentation of marakana group. Here is a link to the lecture that consists of two parts. In these lectures basics around android platform development are explained.