I am currently using ubuntu 21.10 and have flutter, java, Android Studio,Visual Studio Code installed. I can build android fine. I can run desktop versions of it. When it comes to building a snap, that is a different story. I once tried to build a desktop app by following the instructions here.
After following the instructions I ran the "snapcraft" and my computer pretty much exploded. It kept installing java and flutter and went into some infinite loop until i ran out of space on my computer (and I also have to pay for data too).
I'm wondering what went wrong? I used the multipass method. I'm not sure what that is or the alternative for LXD.
I have installed android studio, java, and flutter by using the download package methods and not snap. Was that the problem? When I first tried flutter, it did not work with snap, so I prefer not to. I wish there was a simple way to do this, like making a windows exe in flutter, etc.
I can make electron-builder snaps quite easy as well and have uploaded to the store. It was very simple. I'm wondering why things are so complex with flutter?
Any solutions? I would like to rebuild my dev machine in the next few days. I'm thinking of using the snap installs of java, flutter, android studio, instead.
Related
I am new to java and Andriod studio development. I working on an app that need to run "gradlew assembleDebug" command in the app itself.
is that possible?
Android does not ship with any build tools inside it. On your phone, there is no gradle.
In theory you can make an app that ships these tools but this is very complicated; that sounds like a project far beyond sensible for someone new to java and android development.
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Or, did you mean: You are writing a plugin for Android Studio and it needs to run gradlew? That doesn't sound like a good idea: Android Studio itself does a bunch of stuff around invoking gradle and may have it built in; you should tell studio to invoke it, instead of doing it yourself. I don't know how that's done, though.
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If you really want to invoke commands, use ProcessBuilder. But as I said, this is not what you want to do here.
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.
Well I'm trying to setup libgdx. I used the setup-ui and installed everything on eclipse, but I get this error when I try to run my desktop project : http://pastie.org/8399448
I'm running ubuntu, and I think this might have something to do with why my android emulator won't work in eclipse, but I don't really need it because i'm not planning to make it into an android app. Thanks for taking time to read this/help me. I really appreciate it.
I think you're missing some basic OpenGL setup on your system. Its not Libgdx-specific. For example does glxgears run?
See OpenGL GLX extension not supported.
The answer is probably going to be very to Ubuntu and the video card your machine is using. You might have more luck at askubuntu.com.
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.
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 .