Android 版本号

public class VersionUtils {
public static String getAppVersion(Context c){
try {
PackageManager pManager = c.getPackageManager();
PackageInfo packageInfo = pManager.getPackageInfo(c.getPackageName(), 0);
return packageInfo.versionName;
}catch (Exception e){
e.printStackTrace();
}
return "";
}

public static int getAppVersionCode(Context c){
try {
PackageManager pManager = c.getPackageManager();
PackageInfo packageInfo = pManager.getPackageInfo(c.getPackageName(), 0);
return packageInfo.versionCode;
}catch (Exception e){
e.printStackTrace();
}
return 0;
}
}