PackageUtil.java 文件源码

public static int getAppVersionCode(Context context) {
    if (context != null) {
        PackageManager pm = context.getPackageManager();
        if (pm != null) {
            PackageInfo pi;
            try {
                pi = pm.getPackageInfo(context.getPackageName(), 0);
                if (pi != null) {
                    return pi.versionCode;
                }
            } catch (NameNotFoundException e) {
                e.printStackTrace();
            }
        }
    }
    return -1;
}