Today I downloaded the new stable version of Android Studio 2.2.
I want to using c++ debugging in my Android Studio Project.
When I start a new project, with the Include C++ Support selected within the wizard, I am able to create a hello-jniString program which debugs exactly as expected; both java and c++ breakpoints are hit..
However when open an existing project, click the project in the project panel and click "Link to C++ project". It seems to link and compiles changes well ... however, when I try to debug only Java breakpoints are hit :(
Any help into this would be greatly appreciated .. completely baffled at the fact that no real support/documentation exists for debugging ndk and that c++ ndk integration is so all over the place when Android seems so mature ..
I had slightly different case (debugging jni of library module, built by cmake), but you may try this.
Run > Edit Configuration > select 'Debugger' tab
add symbol directory of your debug symbol placed.
in my case, that was LIB_MODULE/.externalNativeBuild
I can debug c++ now but still finding how to turn off optimization option.
Good luck!
Following up on this incase someone comes by this,
I had to migrate Android/Application mk files to CMakeLists.txt.
Linked to c++ project within android studio, and 9 months later ... at last ... debugging capabilities
Related
I should preface this by saying that I don't know much about programming or android app development at all. I am trying to get a program running to control my pool cover automatically. This program is fairly old, which I imagine is the reason for the issues. I have been following this guide to sign and bundle the APK. As soon as I clone the project from github, I am greeted with this:
ERROR: Could not determine the class-path for class com.android.tools.idea.gradle.project.sync.ng.SyncAction.
In addition to this, the "Generate Signed Bundle / APK button" is not available.
From what I can gather, this program uses Gradle 1.10.
Here is the complete output log that I got from android studio
I might have found a solution for your problem but being a project as old as this, you can have problems with library usages.
The reason you're seeing this error is, using info from this answer, because this project was written in Eclipse IDE. The answer says:
when Eclipse export a project to gradle, it use an old gradle plugin version that Android Studio doesn't support.
Following his instructions I changed my Gradle version to 2.3, but Android Studio showed some more errors asking me to upgrade my version to 3.3, as showed here in Project Structure (You can easily access this using Ctrl + Alt + Shift + S).
Notice that Android Studio also asked me to set my gradle plugin version to 2.3 on another error, that I did. You should be aware that I had to change my distributionUrl in gradle-wrapper.properties file, as you can see here
Lastly Android Studio demanded me to change buildToolsVersion because it couldn't make my app with original config. Also what gave me the most trouble was the runProgruard function that Studio said didn't exist. I found the solution in this answer. My app build.gradle ended like this.
PS: At EVERY step of changing this configurations I had to go to menu build->rebuild project and then use the gradle button "try again". Sometimes it might seems it is not working, but with patience you will get there.
This question is NOT ABOUT how to debug the javascript-land of an React-Native app. It is about how to debug native libraries (means: JAVA-Code in this case) in the node_modules-folder.
While it is very easy for me to debug native iOS-parts of RN-Applications with XCode, i stumbled upon various issues with Android Studio...
The main thing is, that the node_modules-Folder is not present after importing the project into Studio, why it is not possible to setup breakpoints to debug thru.
Versions:
Android Studio 2.2.2 (most recent version currently)
react-native 0.38.0 (latest version also)
gradle 1.3.1 (preconfigured from react-native init)
also tried with upgrade to gradle 2.2.2
Android SDKs and -Build Tools from up to Version 23 installed including NDK
How I did it / Steps to reproduce
1. create new react native project:
react-native init debugTest
2. install third party library with native code that you want to debug natively
cd debugTest &&
react-native install react-native-sqlite-storage
3. ensure that everything would work on android side:
launch GenyMotion
launch an AVD
run the application with this command in terminal:
react-native run-android
(this will open up packager and everything else that is needed to transfer the js-bundle).
If one wants to omit this step, it is necessary to start the packager manually:
node node_modules/react-native/local-cli/cli.js start
4. launch Android Studio
with the upcoming starter dialog, choose "Import Project"
select the directory "android" of your project and click on "import"
(these steps are taken from official RN-documentation):
If you want to use Android Studio to work on native code, from the
Welcome screen of Android Studio choose "Import project" and select
the android folder of your app.
5. Android Studio asks to update gradle version from pre-configured 1.3.2 to 2.2.2. I have first denied it for the whole workflow, later on i tried it out (both did not differ significantly for me)
6. One have to deactivate Instant Run due to this issue
7. Click on "Run" or "Debug" in the Toolbar of Android Studio
So far everything works fine. I was able to set a breakpoint in MainApplication.java::onCreate and could step into this method then.
But here are the questions:
The node_modules-Folder isn't present in Android Studio and can't be debugged this way. How to achieve that?
Debugging the onCreate-Method and going further down into the Java-Stack, very offen it happened that the "Sourcecode does not match the byte code".
The debugger was hanging somewhere else in comments of source code but not on exactly that line, which was selected to execute.
Android SDKs:
I have installed all SDKs and build tools and NDK and everything else since version 23:
TL;DR:
How to debug native libraries that are present in node_modules-Folder of an react native application with Android Studio, because they are not visible in AS thus no breakpoint could be passed?
UPDATE
Finally i've found out the root cause. For me it wasn't working due to the fact, that the library i wanted to debug, wasn't shown in Android Studio. But this was a mistake by myself because the library wasn't setup correctly, why gradle wasn't able to take notice of it.
So, this question can be used like a blog post how to do it right (and will be sufficient if the 3rd party library works out of the box with "rnpm-link" or "react-native link") [which wasn't the case here in my example]
Have you done rnpm link or react-native link ? Once you do that, there will be additional modules along with the app module, something like this.
You can look at all the java code in the native module and put breakdpoints , debug etc.
Bam.... i can answer my first of the two questions now by myself. Thx to #agent_hunt, who put me into the right direction...
In this example application the bindings wasn't setup correctly. "rnpm link" and the newer one "react-native link", which is part of "react-native install", didn't worked correctly here for the android-part because it is not implemented in the 3rd-party-library right now, that i've used for this example.
That's why gradle didn't take notice of the library. After setting it up correctly, the folder react-native-sqlite-storage appeared in Android Studio and i was able to pass a breakpoint and to stop the execution there.
Nevertheless, debugging this library works fine, but when i wan't to step into lower/"deeper" methods of android SDK, it still has issues to point to the correct line of code ("Sourcecode does not match the byte code")
am not new to java programming. I recently downloaded the android SDK to begin practice android programming.
my eclipse Ide hasn't really been friendly with me because, at first it refused to install the adt plugin I donwloaded. till I installed it from google. and now it find it difficult to run even the helloworld program. it gives me several errors.
something about */user/***/res/value/*.xml not found or dark theme something not found, appcompat.v7 no resoirse found .
and also do I really to install all the items in the android SDK before I can compile anything. because the file size of my android-SDK-windows file is way over 10gb. and it looks odd plus my data bundle has been exhausted.
thanks..
Welcome to android Platform
Question1: "my eclipse Ide hasn't really been friendly with me"
Practice makes you perfect. Eclipse is a good tool once you get to know it
Question2: "Do I really to install all the items in the android SDK before I can compile anything"
No, you just need any once of the API ex: API-14 install it
Question3: "It find it difficult to run even the helloworld program"
Download a sample project online import into your eclipse and run it if you are new to android
Happy Coding !!
when using eclipse for android development it will always gives you errors its a nightmare that ull get used to. first of all make sure that the theme is fit for the sdk version that you mentioned in the manifest and two make sure that you have downloaded all the required items in the SDK. and try and refresh the project few times or even restart eclipse.
I'm writing an Android application and there's some Java code in it that's somewhat sophisticated and therefore hard to verify the correctness of in the Android environment. I would like to run this code in a desktop environment where I have more tools with which to examine the output of this code while still using it in my Android application.
My attempted solution is to have three different projects in Eclipse. My Android project and two plain (non-Android) Java projects. One Java project has the sophisticated code that I want to use in Android and the other is a test program that verifies the correctness of the former project. The latter project has already been useful in debugging the former.
However, so far, my attempts to use the Java project in my Android project appears to work in the IDE but when I actually run the Android application, the NoClassDefFoundError exception is thrown whenever I try to access any of the classes. Obviously, that code is not being recompiled into the .dex file but why not?
I could go into detail about what I've done so far but I can't help but think that what I'm doing is a pretty standard and simple thing and there's a plain way of doing it, even though I can't find anyone doing quite what I'm trying. Can someone describe to me how this is done?
Luckily, I found the answer to my own question and I thought I'd share it here to help others in the same situation. It turned out to be very simple...
What I was already doing would have normally worked, which should have been a big clue to me since I have actually done this before, successfully. All you have to do is, under your Android project's Properties > Java Build Path > Projects, add the plain Java project to your "Required projects on the build path" and then under Properties > Java Build Path > Order and Export, check the checkbox of that same project in the "Build class path order and exported entries" list and everything should just work.
From within Eclipse, there's nothing else you need to do to get this setup to work. It's only when you're compiling from the command line that you need to build Java Jars and import them as libraries but I'm not doing that (yet).
Finally, this wasn't working for me because I just happened to be compiling my plain Java project under JDK 1.7 compliance, while my Android project was compiled under JDK 1.6. This is verified by the output on the Console pane, reporting "Dx bad class file magic (cafebabe) or version." This error message goes away when both projects are compiled under the same compliance level and, not coincidentally, the Android program runs properly.
Thank you to everyone who tried to help and I hope this answer is helpful to someone out there!
Would it not work if you made your other plain java project into an Android project and use it to monitor the output on the device?
I have used Eclipse Helios 3.6.1 for Java development. I wanted to start C++ development in the same IDE so I installed Autotools Support For CDT, C/C++ Development Tools, C/C++ Library API Documentation Hover Help plugins.I have included #include "cocos2d.h" in my HelloWorldScene.h file now when writing the below statement cocos2d::CCSprite * ccSprite; I am not getting auto completion bar(template proposals) on writing like coco and pressing Ctrl + Space from my keyboard. What can be the problem?This might help you solve my problem. Please check here. This is what I got after clicking Right Click Project -> Index -> Search for Unresolved Index. But I have added all includes check here. I think this is causing problem in Content Assist. What should I do in this case? Inclusion seems proper.
Can you check if you have included the path to Cocos2d-x headers folder in your project properties? If not right click on your project > Properties > C/C++ General > Paths and Symbols > Includes tab > Add > $PATH_TO_YOUR_COCOS2DX/cocos2dx/include where you must replace $PATH_TO_YOUR_COCOS2DX by the actual absolute path to where you downloaded the cocos2dx framework.
PS: You should upgrade your eclipse to Juno as well, Helios is a bit old now :)
Sorry dont download eclipse juno actually. It comes with a new tool for discovery options (huge joke) that results in a lot of "type could not be resolved". Many people have problems with that including myself as you can see there Eclipse Juno's "Preprocessor Include Paths, Macros etc." symbol scanner for CDT It messes all my includes, therefore im going back to indigo.