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Create a simple Layout

 
Greenhorn
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Hi,

I'm newbie in Android and I can't create a simple LinearLayout. I have the following code in several files:

Principal.xml



strings.xml



LayoutActivity.java



Errors are in the last file, when I try to change the main activity's name. I have errors in lines setContentView and getMenuInflater. The error is:

principal cannot be resolved or is not a field.

I save principal.xml file in res/layout and string.xml in res/values folder. LayoutActivity.java is in src/example.interfaces folder.

How can I fix this error?

I'm working with Eclipse and API Level 16.

Thanks.
 
Ranch Hand
Posts: 1325
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Errors are in the last file, when I try to change the main activity's name. I have errors in lines setContentView and getMenuInflater. The error is:
principal cannot be resolved or is not a field.



why you changing the activity name? it won't compile until you fix the the same name for your file.

Java Rules:
The filename must match exactly the name of your class.

https://coderanch.com/how-to/java/Java-FAQ
 
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