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I have an exiting Android app that uses Java and XML. I want to reface it, and i need informations.
This app use Android specification like the mobile position, modification of te current antenna (2G, 3G, 4G, 5G) ... and a local database with SQLite.
So I need to know if i can make my graphical interface with react and have interactions whith my java code to access to this Android properties. Is it possible to call java functions with react native ?
Can i use React or did i just have to use XML like i did before ?
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I am new to android and I have covered the basics in java for backend and xml for frontend. What I would like to know is: is it possible to develop an android application completely using react and node? Also, how would it be implemented? If there are some tutorials available for this that anyone could recommend, that would be helpful. I want to know if android backend can be built in any language other than java, c/cpp.
If you read https://facebook.github.io/react-native/ you will know a bit more of how it works, but to build a native app, you need to use a framework that generates native code, or write in a language that the device can compile, like the ones you sad before. React Native generates native code.
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I am new in android development ,My question is
what does it mean to have an android app with a control panel , Is it possible to control app after release ?
usually when somebody wants to make a mobile application, he creates a control panel using any back-end (php, java, node.js ...etc)
so he can control the API (if your app uses API call), he may also want to disable the application, so in each run in the application side, an API call will be invoked to check for availability.
you can do more complicated things but that is the basic
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I have a huge Android app project, I attempt to convert it to pure Java, I think to include all classes that my new app need it like View , TextView, Activity , etc. I can get it from Android framework source code.
I know this idea will increase my app size, but it will save a lot of time and efforts
My Question: How successful that idea?
You should look into ARC:
https://developer.chrome.com/apps/getstarted_arc
This is a Android Runtime for chrome on desktops
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I would like to get informations about a Zwave usb key in java, to access to its functions because I would like to write a program who can handle different connected devices using Zwave network.
Someone have an idea to get access to this informations and functions in Java ?
(Sorry if there are some misunderstanding in my sentences, I'm not English)
There are 2 frameworks to access USB devices in Java. Both wrap native libraries. One is specifically for HID devices (not sure of this applies to ZWave). I dont know if they have all the features required to speak to your zWave devices, but they would be the first thing to try.
http://www.usb4java.org
https://code.google.com/p/javahidapi/
Both implement the JSR-80 javax.usb API (which might be too high level).
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I am going to be accessing an array of objects, that are saved to internal storage, throughout the Android Application. It will have things like nameString, any song chosen from the device, array of videos, and date of project.
I come from developing iPhone and iPad apps. Usually I would create an NSObject, but according to: android object oriented programming I should load this into each individual activity?
Why you don't use a simple SQL Database. Each row would have the information for one Object.
Just one possibility but I would think about it.