package com.socks.jiandan.utils; import android.app.Activity; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; public class AppInfoUtil { public static String getVersionName(Activity activity) { // 获取packagemanager的实例 PackageManager packageManager = activity.getPackageManager(); // getPackageName()是你当前类的包名,0代表是获取版本信息 PackageInfo packInfo = null; try { packInfo = packageManager.getPackageInfo(activity.getPackageName(), 0); String version = packInfo.versionName; return version; } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); return "0"; } } }