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R cannot be resolved to a variable

Check your xml files in Eclipse Graphical Editor and fix problems.


Check project setup, right click on project, select properties, Java build path and
select correct Android version etc.

Right click on project, Android Tools, Fix Project Properties

Menu Eclipse select Project ->Clean.

396LW NO topic_id


Další témata ....(Topics)


Number convert int to string Java Android example code | number

Convert number int to string Android Java example source code.

int n = 0;

try {
    n = Integer.parseInt("21"));
} catch(NumberFormatException e) {
   System.out.println("Could not parse " + e);
// int to string
String s = String.valueOf(24);

Android startup tutorial for developers video | android-startup-tutorial-for-developers-video

How install Android emulator on PC

Download links:
Java Development Kit JDK download
Eclipse download
Android SDK download