I had a fully working app, but today when I opened it in eclipse it could not find any of my resource ids(Buttons, EditTexts, TextViews, and layouts). I have no clue why this is happening. It is as though I forgot to give my buttons an id in XML, but when I go to the files they are still there.
Has anyone else had this problem/know how to solve it ?
EDIT:
I should also add that if I look in R.java , all my ids are there
i faced the same issue. i checked the AndroidManifest file same code repeated two times. so i
removed the repeating tag from the xml
after that i clean and compiled, then it was working fine.
also check your adt version version. make sure that is upto date.
Related
I used to give simple ids to Android Views, but lately, I stopped that altogether because of this issue.
Let's say I have 2 layouts, one named first_layout.xml and second named second_layout.xml. In each of these layouts, there is a view with id username_input. This id is used in different activity classes to access target view, be it ButterKnife binding, Kotlin Android Extensions, or even findViewById.
Now, for whatever reason, I need to rename id in just one layout. Thus I do Refactor -> Rename. What happens? Android Studio simply replaces id username_input in the whole project, messing other layouts that had view the same id. Most people don't use a unique id for each and every view in the project since it's not mandatory, but I do because I do lots of refactoring, and many times I lost hours because of this non-contextual replacement in the project.
What are my options in this case? Is there a way to make Android Studio do the contextual replacement in such a situation, or should I keep making unique ids in my project?
Moments ago I was facing this same issue and I found it to be the Android Studio's expected behavior, as other elements might be constrained to the element whose ID is getting changed. So you need to update all the IDs particularly in your new layout file through its text editor AND NOT from the Attribute section of its design editor
Its working fine for me, and so must work well for you too :)
I too faced same issue, when i copied widget from an one activity to another activity and tried to change ID in copied widget. It prompt a dialog box and i clicked "No (Local Only)". But, i feel no use of that option. it still updated ID in old activity too.
Workaround:
Try to change ID or Attributes through Code(Text Editor) not from Design.
I feel google should address this issue and remove this bug.
Right click on the id you want to rename the go to:
Refactor -> Rename
Now you will see an option "Scope" and under Scope you need to select "Current File" in order to rename the id in that file only.
(Not sure if it was there when this question was asked!)
I just came across this post because I was having a similar problem. I have an app with different flavors. In one of my layouts I have 12 buttons. In a different flavor, I want all of those buttons plus I add 4 more. So, I created a new version of the layout in a flavor-specific directory. The problem is every time I tried to change anything that has an ID it would change the identically-named layout in the main directory.
With flavors, you're supposed to be able to override the main directory's layout with a flavor specific one. This was extremely frustrating!
This MUST be a bug in Android Studio. The frustrating part is that it's still not fixed. I installed Android Studio via the JetBrains toolbox since I use other JetBrains IDEs. Currently I'm on version 3.5.3
My workaround
To get around this bug I created a "test" project. I copied the layout code that I wanted to modify, pasted it in the test project and edited it there. When I was done altering it the way I wanted, I created the alternative layout in the flavor specific directory (using the same name as the main directory's layout that I want to override) of the actual project I was working on. Then I copied the layout from my test project and pasted it into the flavor specific file. By doing this, it didn't alter the layout in the project's main directory.
My thoughts
You shouldn't have to do this. It's certainly not the intuitive way. This is why I can't believe that this is anything but a bug. With that said, I hope I have provided a clear workaround for anyone else who's stuck. If I haven't comment below and I will clarify what I can.
This is the image of my main_avtivity:
This is the image of my activity_main.xml layout:
I have imported com.example.calculator.R class. I even tried to clean the project so many times. I even made a new Project two times. Moreover my ADT Plugin is properly installed. Plz help me. I have done everything mentioned in other StackOverflow answers but nothing seems to be working for me.
R.java won't generate properly if there are errors in your XML files. So look through your XML files and look for any possible issues. The errors in the console at the bottom of your second screenshot would be a good place to start.
First SaveAll your changes then go to project>Clean Project and Build it again. Its seems like you didn't save your project.
R.java is not generated. I tried several strategies like cleaning and building etc, none of them seemed to work. Please dont mark this as duplicate since I have tried all the strategies that has been told in other questions.
A common problem with not generating the R file is that you have an error somewhere in your code. Something doesn't match, isn't imported, etc. The R file isn't built until your code can be compiled without errors, even though sometimes it does anyway. I can't give you a reason why it does that, but make sure you don't have errors.
Go to the bottom of your eclipse view and look for a tab that says "Console". It may just show you that youve declared something in one of your layouts that doesnt make sense to the compiler or something like that. Also check the error log and the problems tab.
So I've been working on this project all day, and no problems. I add an id to a layout element in one xml file, which is not being recognized by the IDE (all other IDs are, but this one isn't). I've run into things like this before over the past couple days, and a "Project > Clean" usually fixed it. So I did so - and virtually every one of my files that references R.anything comes up with the red X - I look and see that R.java isn't being created.
I searched SO and found a couple solutions about turning on or off "Build Automatically" and tried that - no luck - someone else said try setting target to 2.2 - tried that, no luck. Tried deleting it manually, tried recreating it and adding it as source - no good. Restarted eclipse, and tried everything again, without success.
As I said, I must have compiled this thing 100 times tonight, and the only change I made between working fine and failing is adding an id to an element (which I've since removed).
If you have a corrupt XML-file and try to rebuild your R.* it will fail. You should go through your xml-files and make sure that they are all error-free. It's likely you have a misspelling or other small problem somewhere that prevents the build.
After updating (to the just released updates) a problem occurs: I get an Error message "Unsupported Content Type in Editor"
The quick error dialog say's that the layout xml is 'illformed'. Not sure that has anything to do with it (as these all worked before). If I click the link in the dialog panel and make an association - same problem occurs (even after rebooting Eclipse).
When I expand the layout xml to the full list of errors, the top two errors are:
org.eclipse.core.runtime.CoreException:
Error opening the Android XML editor.
Is the document an XML file? at
com.android.ide.eclipse.adt.internal.editors.AndroidXmlEditor.createTextEditor(AndroidXmlEditor.java:617)
Any ideas ??? Obviously I can't open it to see what the 'illformed' issues are and, ALL these projects worked fine before the update...
UPDATED
If you experience the same/similar problem, add to the list at http://code.google.com/p/android/issues/detail?id=15003
The Problem follows but, here's a Workaround that worked for me: Make the association of the xml to the Android Layout Editor via Eclipse Pref's - associating them from the problem dialog doesn't appear to work. Then, restart Eclipse. This is a project per project needed change.
I had the exact same issue today. I'm assuming that you've done it already - but just in case - a restart of Eclipse made the issue go away for me.
Im posting here to other users know how to fix this issue. A simple way to get out of the problem for now: rename the XML file you want to see and the Android Builder will recognize the XML file.
i had the same problem after updating to latest SDK (honeycomb). It happened only on existing projects loaded into eclipse but not on new project. My solution was to delete the project first (do not delete the project source code) then import the project again, it works perfectly.
open that xml file in another editor and put the following line in start:
<?xml version="1.0" encoding="utf-8"?>
That problem is the result of the newly installed plugin. Uninstall it!