Recently, when I used Eclipse to develop Android with ADT, I felt that there were still a lot of bugs, and there were more problems than Symbian. I suddenly felt that Microsoft really thought of developers everywhere. The stability and running efficiency of Eclipse reflect the shortcomings of Java. A new problem arises, and errors are always reported during compilation. After clear build, restart Eclipse or an error occurs. It's strange that I carefully used FileMon to monitor file changes. Eclipse and ADT are actually in C: \ Documents and Settings \ android123.com \ Local Settings \ Application Data \ Android folder to establish and many files, among which android123.com is my current computer user name), it seems to be Cache, after clearing the problem to solve.
In addition, many users who use the ADT plug-in combination with Eclipse may encounter R. id. XXX cannot be resolved error, even if you are correct in main. the layout id defined in xml cannot be compiled. This is a special resource definition mode for Android. You only need to save and close the Eclipse project and re-open it. It seems to be a bug in Eclipse IDE.