Eclipse-在导出APK之前我应该​​清理项目吗？

Question

After several late-night debugging nightmares, I've somehow fallen into the paranoid habit of clicking 'Project -> Clean...' in Eclipse every time I'm about to export a signed/unsigned .APK for upload to an App Store. I can only assume that, some time in the distant past, it seemed to be a necessary safeguard when debugging some external JAR or otherwise.

This adds several tedious minutes to the overall export process, particularly with multiple builds and/or apps.

Is this ever a necessary step, or just paranoia?

Answer 1

清理项目将重新编译您的所有类，并且它可能会解决一些问题，这些问题是资源ID更改但R.java类导致的，但已经编译成引用这些ID的类不再存在或更改。

Answer 2

I would consider a build system using Maven, Ant or the upcoming Gradle. This avoids problems with corrupt workspaces and lets you integrate automated testing easily; eg UnitTests or the simple question "Does it run on Android Version XY?"
I prefer Jenkins/Hudson as build server.

Especially when you have several apps for different targets, it can be cumbersome to run all the exports manually.

Ant based build system using Jenkins: this and this
New Gradle based build system: this