Over the course of programming I get errors that give a resource number like "0x7f040000" (or sometimes in decimal form) My question is simple: Is there an easy way to tell what resource that is in eclipse?
i know i could manually identify every resource and print them out, but then every time i make a change to the program i'd have to update this code. Is there some way to search by resource ID?
YOu look up the R class in the gen folder
for example
public final class R {
public static final class attr {
}
public static final class drawable {
public static final int block=0x7f020000;
block is part or the drawables in the R file.
if you want to do this at runtime (and not just in the IDE of eclispe you can try
getResources().getResourceName(id);
you can use getResources() for that:
getResources().getResourceName( theID )
In your project structure, you should have a directory called gen. Browse that directory until you find the class R. There you find every resource of your project defined.
Another possibility is to go directly to the R class: Press ctrl + shift + T and in the popup you just type R. But be careful: There are at least two R classes listed there. One is from Android itself (package android.R) and your with the package name you have chosen.
Look at your R class and see what variable corresponds to that resource id. Right click -> Go To Definition.
Related
Because of just one wrong written line of code in FloatingToolbar.java i was force to copy the entire source code in my library to patch it. This work but now the problem is that this unit call also com.android.internal.R. The problem with com.android.internal.R is that it's could be different between release, (because it's internal), so to be safe i must also duplicate the definition
in r class i have for example :
public static final class layout {
public static final int floating_popup_open_overflow_button=xxx
}
where to find the xml (i think it's an xml?) that define floating_popup_open_overflow_button ? actually in \android-sdk-windows\sources\ i can find only the java files
where to find the xml (i think it's an xml?) that define floating_popup_open_overflow_button ?
You can find a copy in $ANDROID_SDK/platforms/android-NNN/data/res/layout/, where $ANDROID_SDK is wherever you have installed the Android SDK and NNN corresponds with the version of the Java that you forked. There may be other variants of floating_popup_open_overflow_button.xml in peer directories (e.g., layout-xlarge); I have not checked them all.
I have huge number of sound bytes which I want to use in my project. Unfortunately all files are named numerically like "001.m3 , 002.mp3 ...."
When I added files in raw folder, Android R file gives error.
How can I solve this problem. Can any one provide me link where android has mentioned naming conventions for resource files.
Every resources having entry in R.java file, If you see R.java file is nothing but like our normal class
public final class R {
public static final class raw {
public static final int 001=0x7f090005; // this will not accept as a variable name
}
public static final class drawable {
}
public static final class id {
public static final int main=0x7f090001;
}
}
You should follow the same Naming Convention like we do have for Variables i.e.
1) Must not start with number
2) Must not contain Special character except(_)
3) Must not used Reserved Keyword mentioned here
Solution: You have to rename you files, thats it.
The problem that you are facing is because of your file names, since your file name is 001.mp3 or 002.mp3. Android creates R.java file automatically, and in that file(R.java) it will create a variable by that file name which is variable name "001". Having a numeric variable name is wrong . It will not allow such thing and instead throw an error.
If your file is 001.mp3 then R.java will have error in this line which is
Syntax error on token "001", invalid VariableDeclaratorId
public static final int 001=0x7f050000;
I request you to change your file names. May be follow the recommendations Are there conventions on how to name resources?
Hi i am working with Gestures and i need to import but i m getting error
com.android.internal.R;
The import com.android.internal.R cannot be resolved
kindly help me , please
You don't say why you need access to com.android.internal.R, but the sad fact is that you simply cannot import it (the "internal" is a clue that it's not part of the public API). Google doesn't expose this because it is subject to change.
It is possible to get to the internal resources by calling Resources.getSystem(). To get the value of a particular resource identifier, you have to know its name and then use code like the following to find the value:
Resources res = Resources.getSystem();
int id = res.getIdentifier("resource name", "resource type", "android");
Be aware that any name that you use could disappear in future versions of Android.
I have a couple suggestions:
1) Make sure you don't have any other errors other than the R-related errors. Right-click your project folder in Eclipse, Android Tools -> Fix Project Properties.
2) Check to make sure you have the correct R imported. Sometimes the default Android.R can be imported.
Yes you can use the internal R with some dirty trick (dirty trick = Java reflection).
Just an example:
Class clasz = Class.forName("com.android.internal.R$styleable")
Field field = clasz.getDeclaredField("TextAppearance");
field.setAccessible(true);
int[] textAppearanceStyleArr = (int[])field.get(null);
field = clasz.getDeclaredField("TextAppearance_textSize");
field.setAccessible(true);
int textSizeStyle = (Integer)field.get(null);
First of all, what is Gestures ?
Do you have a package named com.android.internal in your gen folder ? Doest it contain R.java ?
If not, try Project->Clean in Eclipse. If it still doesn't work, you may have an error in your XML layout files.
In some code we're trying out, coming from various tutorials, we end up missing R.id, which should be generated in R.java, obviously. We can add it in (by analogy with other "first" Android projects we've done), but as this file is auto-generated, anything we do like that just gets overwritten ultimately.
public static final class id
{
public static final int Button01=0x7f060004;
.
.
.
}
Was there a construct to put into strings.xml, main.xml, etc. that causes this to be generated?
(Yeah, we're total noobs. Sorry.)
Thanks for any help you can give,
Russ Bateman
Say I have an XML file with the following content:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
>
<ListView android:id="#+id/ListView01"
/>
</RelativeLayout>
I save it in res/layout/ .
Then R.id.ListView01 gets automatically created.
You might want to look at the Notebook Sample application and how it's organised. At least that's how I got familiar with androids organisation.
R.java is auto generated by Eclipse. If it is not built, this means you have probably an error somewhere in your xml files, or a resource with a name that is not allowed.
Sometimes it is just Eclipse doing strange things, in this case, you can try :
Project > Clean > all project
Then let Eclipse work.
Sometimes it solves the issue. If not, it's highly probable that you have an error somewhere in your resources.
To create this file, Eclipse gathers the ids you declared in your xml files with #+id,but also the layout names, images names, string names, ...
It appears that project/res/layout/main.xml contains the constructs that lead to the generation of id in R.java. (I'm not limiting the source for these only to that XML file.)
Look specifically for android:id in various widgets (I think they're called) such as TableLayout, TextView, EditText, etc. There will be corresponding
public static final class id
{
public static final int x=0x7f05006;
public static final int y=0x7f05000;
public static final int z=0x7f0500c;
.
.
.
}
where x, y, z correspond to the (TableLayout, TextView, EditText, etc.) identifier coded immediately after the "#+id/" construct in the XML file (and the initialized value in R.java is magically generated--you don't have to worry about that).
Thanks to all who contributed.
I am building an Android app, and I have a problem to get resource from string.xml.
I need to have a URL in String.xml that will be used several times through the app.
I tried Resources.getText("my_url"), but this does not work. Eclipse complains when I use this.
Do you think this is the best way to do ?
What you probably want is:
String myUrl = getString(R.string.my_url);
The getString() method is in Context which means that it's available directly in your Activity class since Activity is a subclass of Context. (The getString() method is also in Resources but it's easier to call on it directly on your Activity.)
What happens with your XML resources is that each is given a unique integer ID and this is added to the automatically generated R class as a public static final int. You then use these IDs to reference the resources. Have a look in the gen folder in your Eclipse project and you'll find the R class in there.
Do you ever refer this page: https://developer.android.com/guide/topics/resources/available-resources.html ?
If you want to retrieve the String represented by a resource ID, you can call the Context.getString() method.
Or, you have to post Eclipse's complains.