I was searching about R class in my project to get look on it without editing it.
When I press ctrl and click on R Android studio opens the resourse file instead of R class
Where does it exist in my project structure?
This is not about understanding R class in Android, It is about finding it the project for just having look inside it.
You can find R class by searching it with "shift + cmd + o" or "double shift".
I guess new android studio update directs to the xml source of the resource.
Please check in this path "app\build\intermediates\incremental-verifier\debug\your.package"
Related
I'm reading a book in that book they say I can find R.java file in some sort of path but I go thought the path they said I can't find the file and I think in latest version of android studio looks like they changed it , so now where I can find the r.java file
The R file is a generated class. The easiest way to find it is opening any activity you like say the MainActivity which comes in by default
You will have something like this in the onCreate function
public void onCreate(Bundle bundle){
setContentView(R.layout.activity_main):
}
In this method you can find the R class. To know what's actually inside it you can hover your mouse pointer over the R and then Ctrl + Click( Win, Linux) or Cmd + Click (mac) it to get to the definition
I am new to Android Studio.
Right now, my android Studio project only has a single package, the application package. How do I create a subpackage ?
Currently, the package for the MainActivity.java is:
package com.davidgassner.plainolnotes.;
I want the directory for the subpackage to be: packagecom.davidgassner.plainolnotes.data;
When I created the subpackage using your's and Android Studio's instruction
I got the following:
package com.davidgassner.plainolnotes.com.davidgassner.plainolnotes.data;
I am getting an indication from Android Studio that the above path is not correct.
Right click in your main package -> New -> Package -> Give a name to your package and there you go.
If your main package is com.davidgassner.plainolnotes and you want to create com.davidgassner.plainolnotes.data , follow the steps above and when asked to input the package name, supply only "data". It will be created like this:
+ com.davidgassner.plainolnotes
+ data
In the top left corner you can switch your perspective from Android to Project to see all your project structure:
I have a project using open c v . and I get a error with import .org . open c v .R.id cannot be resolved . can you help me ?
I already clean project but not working.
Check whether you have imported your own projects R class rather than android's default R class.
For example: your.app.package.R.
And then do a "clean project".
i am trying to insert new activity in my android application,after inserting the new activity it gives error in the R.java file,
String class
public static final int =0x7f050009;
it erase the variable name,and don't allow to update variable name. Is this problem occurs because i inserted new activity in the application,or problem is other ?
R.java is generated by android automatically. You don't(shouldn't) write/modify it. Just delete it and then clean and build the project again.
Try to clean you project from Project>Clean.. and build again.
When you create a new activity and after adding it in android manifest xml file, then building an application in eclipse should re generates the R.java.
If 'Build Automatically' enabled in eclipse, then on saving manifest file itself will trigger re generating R.java. Don't do anything in R.java its automatically generated.
if u create the different packages for your project Like Activity, Fragment,Bean.
In such case R will show in red color at setContentView method.at that time keep cursor at R and press ALT + ENTER it will show for import R.
click on it..
it will resolve your problem.
I have started working on android just 1 month back (so please consider my question even if it looks simple). I have my Bluetooth code running on Android 2.2. So I am working on using backport-android-bluetooth to migrate it to Android 1.6 (as I have some old pads with 1.6).
I came across foll. link: http://code.google.com/p/backport-android-bluetooth/
I have queries regarding point no. 1 and 2 under 'Install' which are as follows:
1. download backport-android-bluetooth2.jar, and put into your projects's reference libraries. - Where is exactly 'projects' reference library'? How to put .jar file in that 'reference library
2. put backport_android_bluetooth.properties in to your src directory. -Is this file to be put in 'src' folder or '*Project_Name*' folder like project.properties file?
Thanks in advance.
Put a new file into your src dir,named backport_android_bluetooth.properties
and then put the code below in it:
#permission_name = ${your package name).PERMISSION_BLUETOOTH
permission_name = com.example.bluetooth.PERMISSION_BLUETOOTH
#request_enable = ${your package name}.action.REQUEST_ENABLE
request_enable = com.example.bluetooth.action.REQUEST_ENABLE
#request_discoverable = ${your package name}.action.REQUEST_DISCOVERABLE
request_discoverable = com.example.bluetooth.action.REQUEST_DISCOVERABLE
if u r using eclipse than right click on ur project New/Folder,
give folder name as libs and copy & paste android-bluetooth2.jar in libs folder.
than right click on libs folder go to Build Path/ Configure Build Path
Click on Add Jar, select your project/libs/android-bluetooth2.jar
press ok