I have a Processing sketch that works fine on my computer.
I'm now trying to get it running on my Android tablet using Processing Android mode. But I'm getting a lot of compiler errors saying "cannot find symbol".
I'm using some Processing libraries I've created using https://github.com/processing/processing-library-template .
These libraries don't actually access system resources or call the Processing library themselves. Or any other external Java except Java.util. They're just manipulating data-structures.
However it seems Android mode has a problem with them.
Googling around it seems that a lot of Processing libraries don't work with Android Mode, but I can't find anything explicit : should I simply assume that external libraries can't work at all with Android mode? Or are there specific things that won't work? Or should I be looking for a specific bug somewhere in my code?
Update : Further details. I believe Processing Android mode targets Android 2.3.3. I'm using Processing 2.21. The libraries I'm talking about are my own.
From a related Git Issue page , a comment by omerjerk
The master branch of this repository is not buildable with the master
branch of processing. processing has moved ahead and we haven't
updated this repository yet. Why are you really building the Android
mode yourself ? If you want to run your processing sketches on your
phone, then just download processing 2.2.1 from the main website, open
the IDE and from there, download the Android mode. In case, if you
really want to build Android mode from source, apply this pull request
- #98 .
See if this helps
Related
I want to get location updates in background when app is minimized. So I created a demo Flutter application with a service in native Android which I can run in foreground to get the continuous location updates for application and it is working fine as my expectation it is updating locations in notifications (for test).
Then I tried to implement same service with actual Flutter application with same service mentioned in manifest file same as demo application but my application is crashing on starting so I can't debug and in addition to that I don't get any error in building.
My main Flutter application is working fine without the location service implementation so only issues is after implementation it causes crashing.
What could be the issue and solution for this problem or how can I find out what is the problem?
I am doing same thing in original Flutter application same as in this dart code of demo application. How can I investigate this problem?
I am adding my answer regarding the question mentioned above.
in my case, it was not a foreground service which was crashing application but the issue was that As the flutter is growing framework, We get lot of updates & changes. With one of those Flutter update, Flutter updated plugin registration process for app on native side so some plugin with older version dependencies doesn't get registered with app as flutter doesn't support FlutterView(deprecated) anymore.
Note: Always make sure your plugin dependencies are updated to latest version of its dependencies in pubspec.yaml.
For me, My main application and demo application created for foreground was working according to my expectation but when I merge them it was crashing because camera plugin dependency version was too old. Second thing you can do is which can also reduce chances of error due to androidx compatibilty as well. Though, it is not too tough to do in old app as well.
Note : Create new flutter project and move your all dart code to new application.
Please be careful while doing this option.
-- Don't forget to add permissions in manifest files which you are accessing in app.
-- Don't forget to add assets and resources used on native side if you have added or changed.
-- Don't forget to set version according to version of old app.
-- Don't forget to make changes in your gradle files if any of app dependencies use that configurations like minimum sdk, targetSdk, etc... (if it applies in your case)
If you don't find this useful you can run your android side code in android studio and can find out what is the problem by debugging that code and fix it. Thanks
Is there an easy way to run Java code on an Android device without actually delivering an apk? I'd like to test out function calls without building an entire project.
For instance, it would be cool to run calls like Camera.open(1) and see what the device responds with. It takes forever to rebuild an entire project and redeploy it for minor changes. The only option I can come up with is having some sort of text field that takes user input, executes commands (Compiler API?) and displays the result. Is there a better way?
There is the Android Scripting Layer
https://code.google.com/p/android-scripting/
There is Dev Apps Direct for looking and loading sample open source libraries.
There is API Demos which is just the official samples from the android sdk that a third party published on Google Play
I'm working on a server backend component for an app, and one goal is to log all the messages transmitted through the app (using MQTT). To do this, I wanted to use the app as a library of sorts so that I could use the objects defined within to parse the messages coming through, since none of the messages will be transmitted as standard types. I'm using IntelliJ for the Java development, and Android Studio for the Android development. Is this possible? I was previously able to import the code as a module, which let me use the types defined within, but when I went to build the project it tried to build the Android code as well and failed because IntelliJ hadn't set up Android dependencies. Should I try and set the Android SDK as a dependency in the app module, and then build? Or am I approaching this the wrong way? (if it's even possible) I understand that there are also Library projects which looks like a possible solution, it would just require re-factoring all the applicable code out to a different project and I was hoping that wouldn't be necessary.
Trying to import the entire Android app as a library into a different codebase probably isn't going to work; you don't want a non-Android app to have all that Android code linked in, and with resources and the whole environment it will be tough to get it to compile at all.
A better approach would be to take all of the code that needs to work cross-platform and distill it into a plain Java library that you can include in multiple contexts. On the Android side you could include it as a plain Java library project, or compile it to a jar and include the jar.
I want to make one application that will monitor chat history of other IM in phone.
I couldn't find any Skype API for Android, although I found Skype4Java API from net. I wish to use this in an Android application. I have imported the .jar file of that API to my Java build path. When I run my code, I am getting errors for libskype.jnilib and libskype.so file.
I also can't delete that file also, because when I attempt to delete that I get an error. Please tell how to do that?
How can I use Skype's Java API inside an Android app?
As of the current writing of this answer, there is no Android implementation of Skype. There are numerous third-party chat APIs, although I personally can't name one since I haven't worked with any.
The reason why the Skype4Java API is throwing errors at you is because it was not designed for use with Android. To delete the .jar file, you must remove all references to it and remove it from your build path for attempting a delete.
I'm trying to write some apps using wikitude, and I'm having some problems running even the example.
I've put the sample ( BasicOpenARDemo ) that comes with the SDK inside eclipse and tried to run it, where I encountered the next error: "wikitude was not found on the system. Please press the ok-button to access the Android market and download wikitude."
First question- I don't understand- Why am I approached to download the utility when I have a standalone sample inside my eclipse? Doesn't the core files behind Wikitude come with the SDK or the sample itself?
The next question will be - after some googling, I've found that in order to install this "Android market" I need to follow the manual that comes in the 9th message in the next thread (the message that was written by ronni.rasmussen) -
http://forum.xda-developers.com/archive/index.php/t-529170.html
Well, I've followed it, and now when I try to press the OK button that comes after the "wikitude was not found on the system..." message, I get redirected to the Android market, where I find Wikitude, but when I try to download it- I get a "Download was unsuccessful. Please try again" error message. How do I fix that?
One more thing that I don't understand- How come it's written in this offline Android market that the available wikitude version is for android 1.5 and no longer maintained?
As you can see- I'm quite baffled here. Hope someone could clear this up for me.
I was with the exact same problem. The problem was that installing Wikitude from the market (following the link you provided) does not guarantee to have the system requirements supported in the virtual device, therefore it gives an error when you run the BasicOpenARDemo, if it let you install it at all.
The solution was creating an AVD with an GoogleAPI (it includes maps support, I used the level 10 API for Android 2.3.3, it didn't work for the level 8 API), adding the camera, accelerometer, compass, GPS, etc., support to the virtual device (I did this via Eclipse). Then I downloaded the .apk for Wikitude and installed it via command line (.adb).