I am using Android Studio (IntelliJ) to program Android apps and am facing a problem with hot code swapping and libgdx.
When I run the desktop application in demo mode everything works fine. If I try to change a bit (e.g. the color of an element) nothing is refreshed in the application. Even if I select Run->Reload changed changes a new gradle build is started (takes very long) and then says couldn't find any changes.
I have imported the same sample application in eclipse. There I can just change something in the code and it is immediately shown in the running app.
Anyone else experiencing this issue? Why is this not possible in IntelliJ?
Unfortunately, hot swap debugging does not appear to work when using the Gradle template.
It is actually possible as specified here, you need to disable the Android Support plugin if you want hot code swap to work with Gradle and libGDX.
Related
I was working on an android project for homework, and suddenly, while I was designing a layout, I realized that the code completion wasn't working, and I don't know why.
Here I post some photos:
XML not completing
However, when I try to code some Java, the completion is working.
Java does complete code
I don't know how to revert that, I tried to Invalidate Cache, turning off power saving mode, and nothing works.
Change your gradle version from the one you are using presently. Then close and open project again.
Try restarting studio and Sync Project with Gradle files
I have a problem running my project on Android Studio. I am working on an Android project that has a native Java library inside it. It was running fine all the time. But suddenly when I open Android Studio, I find this error:
There is also an error in the .gradle of the project:
It says that URI is not registered.
When Android Studio is started, I find this message:
It seems that there is something wrong in Java configuration, but I can't find out what is the problem?
It was running fine all the time
Not on Android, it wasn't.
It seems that there is something wrong in Java configuration
No. You are using classes that are not part of the Android SDK.
The java Swing and AWT API are not part of the Android SDK and thus aren't including with it. You must find an Android equivalent image library to use in your app. There are few good ones around just depends on what functionality you need to have available to you in you app. Try searching Picasso and or Volley. Picasso is very popular and well known. it has a lot of feature including networking functionality for loading images from the web. The Volley library isn't an image library but an networking library that contains some predefined classes for loading images over the internet.
So this just happened to me. I'm not 100% on the details of how I got it working again, but its roughly this (on my Mac):
Quit Android Studio
I went to ~/Library/Application%20Support/ and deleted the AndroidStudio3.2 directory
I relaunched Android Studio and I got some warning dialog about plugins not existing.
Chose the button that is something about reinstalling or fixing (or whatever isn't deleting or ignoring)
Another dialog comes up. There are a bunch of plugins that are in red. Deselect all the red ones. Then reselect all those ones that were previously red.
Android Studio asks you something and if you want to restart Android Studio. Pick the thing that includes restarting.
And once Android Studio restarts, chose to rebuild your project, and then it worked.
Good Luck and I hope this works for you too.
I'm having an issue starting my android development as I've tried multiple solutions off this site for getting past eclipse not building blank activities and its not letting me begin my development and I have also tried updating and downloading the SDK but all my attempts have all deemed unsuccessful, could this be because I'm using eclipse mars.
My recommendation would be to start using intelliJ IDEA. Just becouse you can do almost everything inside that one program and it seems to be faster than android studio for me.
Here is the download link: https://www.jetbrains.com/idea/
I am new to java and android and wanted to see how developing for android works
I started by downloading the SDK FROM HERE
However after I finish making the Hello World project sample given in the website HERE, if I try to run it on the emulator as explained HERE, the emulator screen appears, but nothing seems to happen. I can see the word android on the middle of the screen with some animation happening, but that's it. The website says something about unlocking the emulator, but I have no idea what that means. What I have gathered from reading other posts is that the emulator is supposed to have some kind of slider switch as in real smart phones which should be dragged to unlock it, but I can't see it in my case. Now I have no idea why this is happening or what I should check out in order to fix this. Are there any installation logs or something else that I can check to see what the settings are?
What I have tried till now:
I downloaded the SDK ADT bundle from HERE and just unzipped it. Then looked for eclipse.exe and ran it directly. Is there anything else I should have done prior to this?
When I did it for the first time, I had only JRE installed and not JDK, which I realized after reading THIS POST. So I downloaded JDK from HERE, updated the required environment variables and restarted eclipse, but still it's the same thing.
I looked at the Eclipse isn't talking to the emulator section GIVEN HERE, but all it says is to restart eclipse and the emulator, and it doesn't do anything at all.
Rant:
I can understand if the program had failed to compile when I didn't have JDK , or if the IDE gave any indication at all of a faulty program install, but that isn't the case. Everything seems ok, there are no errors, but it just doesn't do anything. This is the type of thing that makes people pull their hair out, and personally, I think the With a single download, the ADT Bundle includes everything you need to begin developing apps: in the android website is very misleading, especially for complete beginners
Anyway, what should I do to make the tutorial program run on my computer? My computer is a bit old and slow so could that be an issue? My computer is Windows XP SP3 on Intel(R) Pentium(4) 4 CPU 3.20 GHz 3.19GHz 2.50GB RAM, but if that was the case I assume the emulator shouldn't even start up
You just have to wait a bit longer. Android loads pretty long on emulator.
Tutorial says about unlocking, because when Android is loaded, your screen on emulator will be locked.
If you find emulator too slow for you, you may want to check this topic out: Why is the Android emulator so slow? How can we speed up the Android emulator?
I had the exact same problem as you when I first got into Android development a week ago. The two things I did are simply
1) Set the usable RAM on your AVD to 768MB
2) When you run your Hello World program in your emulator, give it about 5-10 minutes. Don't touch or click the window at all, just let it load up. Later you can make it persist
3) If your home screen comes up, click and hold the mouse button in the center of the screen, then drag towards the sides and release, this should unlock the device.
Try these steps first, if they don't work then there is likely a problem with your AVD configuration.
If you are launching your app first time with emulator, it will take appropriate time.After that, on Lock icon click and slide to the right. then you can view you application. If not check for your app(icon) installed.
By seeing your configuration of PC I think it will take some time to load emulator. After emulator is load (see below image)
then and then run your code and also check in eclise-device that whether emulator is online or not.
For checking emulator in eclispe :
In second image just above windows logo you can see small rectangular button with plus sign click on that you will get list from which you can select devices. You can find similar button in you eclipse at the bottom.
I had the exact same problem and followed the exact same steps, but was also unsuccessful. I ended up creating a new AVD with a Nexus 4 instead of the latest Nexus 6. The resolution of the 4 is much lower, which I think is what solved my problem. It loaded much more quickly using the 4.
Also, When I was using the 6, I could only see "ndroi" because the size of the screen was much larger than the size of the phone. Now I can see the full device.
vs.
You may just need to relaunch the Android studio 3.6.3.
I got a similar problem. The hello world app does not install on the emulator.
Problem solved after relaunch.
I'm doing a REALLY simple app, a basic hello world to test AndEngine and I am currently having some problems when running it:
I set my emulator properties as RealMayo suggests in his videos and it should work but I get this error instead
07-23 13:10:23.014: E/AndroidRuntime(1485): java.lang.IllegalArgumentException: No EGLConfig found!
Anyone has encountered the same situation, or may know how to solve it?
I am almost tempted to not us AndEngine at all... as a simple app has been really difficult to run.
NOTE: I have found some posts but they are at least 3 months old and the use of emulators has been fixed not long ago.
Anyways Thank you! :)
make sure your AVD is at least Android version 4.0.3
see this thread http://www.andengine.org/forums/gles2/api-level-t8230.html
just to add a small addition to the answer above (answer #1): make sure along creating an AVD with API level 15 (Android 4.0.3), that imported AndEngine library's project target is also built with Android 4.0.3. To validate: right click on AndEngine library in eclipse project, choose "properties", in the left pane of opened window click on "Android" label; in right pane verify that "Android 4.0.3" checkbox is checked. If "Android 4.0.3" option is not listed there, just import it with Android SDK Manager.
The comment from Ravikumar11 about GPU helped me get this resolved.
Additionally, I had to:
Update the SDK with all options for my current API (17) and the general tools (binary downloads that are not API-specific)
As eclipse suggests after SDK update, run Check for Updates in eclipse and a bunch of stuff gets loaded subsequently
From there, I was able to run my AndEngine app in the emulator