//獲取當前軟體的版本getPackageInfo("系統中其他已經案子的軟體包名", PackageManager.GET_CONFIGURATIONS);

//獲取系統日曆的版本資訊

packageInfo = getPackageManager().getPackageInfo("com.android.calendar", PackageManager.GET_CONFIGURATIONS);
System.out.println("versionCode:" + packageInfo.versionCode);
System.out.println("versionNode:" + packageInfo.versionName);
            
//獲取當前軟體的版本getPackageInfo("當前軟體的包名，AndroidManifest.xml檔案中跟節點manifest的package屬性的值", PackageManager.GET_CONFIGURATIONS);
packageInfo = getPackageManager().getPackageInfo("com.example.apkinfo", PackageManager.GET_CONFIGURATIONS);
System.out.println("versionCode:" + packageInfo.versionCode);
System.out.println("versionNode:" + packageInfo.versionName);