android - How can I get version of release before updating application? -


i beginner in android programming, please me find out in questions , sorry english. develop application on eclipse android. , want develop module of load update file website. know how can update file, load , launch programm code (example of code can see link android: install .apk programmatically). before want version of release of update file. , don't know how can it. may developed same module , can give me advise.

you can use packagemanager purpose. have used code in app:

packageinfo info = context.getpackagemanager().getpackagearchiveinfo(apkpath, packagemanager.get_meta_data); if(info != null) {     applicationinfo appinfo = info.applicationinfo;     if(build.version.sdk_int >= 8) {         appinfo.sourcedir = apkpath;         appinfo.publicsourcedir = apkpath;     }            string version = info.versionname;     int vcode = info.versioncode; }

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