What alteration should be made in a Java Application to be able to install it on Java Enabled Smartphone?
I tried using a random app of mine to see what happens, when I open it on the cell, it says Install? I say yes, and it says invalid file.
Now I was wondering what alteration should be made?
My smartphone (Samsung S8500) runs on bada which is more or less the same as Android, but alterations in the General.
You need different SDK for smartphones. Like for Android, you need Android SDK 1.5 or any other version. You just cannot install the same application. You need to develop using the resources provided by the SDK.
If your application is Java based mobile application then you can use some tools to convert it for Android. Doesn't work every time but worth a try.
In your case, Bada OS is not like Android what i learn from here. So, you need to develop the application using J2ME .
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I want to start off by saying that I am not a Java developer. I've never ventured outside of Windows and C#. But for my current goal neither C# nor Windows is adequate.
I am planning on using RPI4. The problem is the hardware I would like to integrate only provides SDK for Linux(x64 x32) and Android 4.0+. Now RPI4 has a an arm based CPU so using the linux sdk is out of the question. But the android SDK is for ARM based devices and it also supports arm64-v8a which would be the RPI.
So my question is whether I could use these .so and .jar files to make something on the RPI or am I out of luck?
I downloaded the Android studio and installed it. When I launched it, it's all "graphical". My screen reader is reading nothing on it.
I'd prefer if I could use my Notepad app, but the "stand alone" tutorials are too tiresome, and not many tutorials on the web have instructions making apps using Notepad. I wanted to know if there is an alternate IDE, or another way to code Android apps?
The Java IDE Eclipse is also not very compatible with my screen reader. I use JAWS screen reader by Freedom Scientific. I used to code Java desktop software using my Notepad, so I'm familiar with programming using Notepad.
Also, if I somehow figure out how to make Android apps using Notepad, how am I going to test them? Do I need a phone? I'm sorry for all these beginner questions, but I'm a beginner :)
You can follow this link:
http://developer.android.com/tools/building/building-cmdline.html
If you only want to build, not run, you don't need a phone. If you want test without a phone you can use an emulator by running"AVD Manager.exe" in Android SDK folder.
The good thing since the transition to android studio is that now the building of an android project is done using Gradle and can be piloted entirely by command line. So technically, you don't need an IDE at all.
Basically, every project has at least a build.gradle file that contains the instructions to build it. You only have to launch Gradle with the appropriate command to compile your app.
Yelliver mentionned the tools to build the app from the command line, there are also tools to create the project structure and the basic build files: http://developer.android.com/tools/projects/projects-cmdline.html (this documentation appears not to be entirely up-to-date, though, as it mentions the old project.properties format)
Having a phone to run your app is certainly going to be nicer and faster to develop. The emulator is far from perfect, quite slow, and sometimes not responsive. It is also easier to install other apps on your phone than on the emulator, in case your app interacts with other apps.
I wrote two small scripts for Android development without using Android Studio. They are building apk and installing it on the connected device and opening the logcat with the output of the installed application. This two scripts not even near to complete when to think all the features of the Android Studio but they are allowing to at least run the project on your phone.
Is it possible to run java app (jar) in my android application? Because I need to create PDF, the problem is if I generate PDF in android, only can show with small image, if it contains large image in many pages, it will be error. So I think, I can generate PDF in java and then included to android app.
Concernig the mentiones app JBED:
Well honestly, I could not find any credible source for this tools JBED, so I would really be very cautious (e.g. who is the developer?)
In the manifestfile (in Androidmanifest.xml, where every app has to state what rights it needs to run, see How to view AndroidManifest.xml from APK file?) there are many rights mentioned (what could be necessary, as the app wants to run as an emulator), so a java application might want to send an SMS, record audio, take pictures and place calls -- so the emulator would need those rights as well.
But then the app also registers the "android.intent.action.BOOT_COMPLETED" event (i.e. autostart after boot) and this would go against every description of the tool.
Ah yeah and giveaway: The apk has a folder "certs" that has some (root-)certificates. But those are not the real certificates of the authorities, e.g. Versign. If one installs the app and by that those certificates the trust you might have in https-connections is lost because those who made the fake certificates can create own, false certificates that your phone would trust.
I assume (or am pretty sure) this is a spy tool, but I could be wrong. The (rare) testimonials that claim the tool ran perfectly will probably be the same person that posted the tool under a different name.
Andreas
You can import java Third-party libraries into Android app, follow the steps here.
I am not sure whether it will work,but just try.
If your program is a console program, the answer is yes.
Install Jvdroid from Google play. Click terminal and then write this command: java -jar YourJarFileName.jar
The simplest way would be to some install terminal emulator and then install java and then you can run java apps on standard java. You can even install full Linux distro with x server without rooting the phone, then connect to it from x client and you have Linux desktop on android. Once I've even installed eclipse for java development on it and everything worked. I tested this setup last time in 2014, but I'm pretty sure you can do this nowadays as well. The app with Linux I get from play store as well app for the x client. The app I used back then was "Debian no ROOT" or smthg like this. You need to check what's currently available to make this setup in Google Play store according to your android version and your preferences. Last time I've checked there was a lot of different tools for this kind of task. Lastly I've even successfully installed TF and keras on my android phone using terminal emulator.
You can use JBED. JBED is an .apk Android application which run java games and app on your android Device. JBED is a java android emulator, by using
this application we can install .JAR/.JAD/Java/J2ME/MIDP app on android phones.
You can do it quite easily as there are many ways to run java apps on android. Specific application called Java Emulators can do it quite easily.
These are four most popular java emulators for android viz, JBED, PhoneME, Jblend and NetMite. These are arranged in order of their preference. You can use phoneme for non rooted device, however if your device is rooted try any of the remaining three applications.
I have never tried out the Android SDK and do not own an Android phone. However it seems that certain libraries are excellent, for example the text to speech lib. Is it possible to use this library with a desktop VM and did anybody here try this?
You could get the sources from android.git.kernel.org and try to rebuild them against a desktop environment, but it would be a lengthy project - you need not only the java stuff, but the underlying drivers, native libraries, customized c library, and add-on os functionality to support them.
The android SDK includes a qemu-based phone emulator in which most functionality works as on the device. This should be fine for playing with the capabilities, though is not something you would want to use to deploy them. There is also an x86 community build of android which people put on netbooks or run in virtualbox. Word is that the official android emulator may be moving to something similar since it's substantially faster to run x86 code on a customized os image in a vm than to emulate an arm processor.
There's also something of a simulator which tries to provide enough of the android o/s services to sort of run apps natively on the development machine without a vm, but the google folks have implied its a bit of a hack and not well maintained.
What are mobile phones supporting Java Android?
Is there any Nokia phone supporting this technology?
What should the mobile contain (a framework, a plugin.. etc) if we want to deploy a Java Android Application?
Android can be deployed to many devices with custom builds of the OS; anyone can build Android . It is not limited to particular handset makers and you might want to consult the makers for official lists of deployed devices.
There is nothing the device needs to contain (other then an appropriate targeted version of Andrdoid) to deploy an application.
One important note is that the application IS NOT run in the JVM, the code is only written in Java and then converted to Dalvik bytecode when compiling (Android runs on the Dalvik Virtual Machine). Since the code is written in Java though you can make extensive use of existing libraries and use them in your applications.
There is a fairly comprehensive list on Wikipedia comparing devices running Android, including forthcoming devices.
Nokia seems to have no interest using Android platform for its devices.
If the device is a certified Android platform, there is nothing one needs to add for deployment.
I think most phones that run Android should support Android applications. However, IMHO one would be hard pressed to compile a list of those phone.But rest assured, it's a lot. Someone DID make a list! And yep, it's a lot.
Some quick Googling reveal that Nokia seems to not like Android so I would assume there is not a Nokia phone with Android.
Framework: Eclipse Galileo with the ADT plugin
My advice:
read this site inside and out! http://developer.android.com/index.html
It answers all your questions.