在Android上获取应用程序安装date

有没有办法findAndroid设备上的“安装应用程序的date”。

已经广泛search，但无法find相关的答案。

在通过PackageManager文档/代码安装应用程序时，无法find关于date的任何信息。

非常感谢。 马希姆。

Answer 1

或者这个（ API级别9以上！）：

long installed = context .getPackageManager() .getPackageInfo(context.getPackag‌​eName(), 0) .firstInstallTime ; 

Answer 2

使用此代码：

 PackageManager pm = context.getPackageManager(); ApplicationInfo appInfo = pm.getApplicationInfo("app.package.name", 0); String appFile = appInfo.sourceDir; long installed = new File(appFile).lastModified(); 

Answer 3

尝试其中之一

 /** * The time at which the app was first installed. Units are as per currentTimeMillis(). * @param context * @return */ public static long getAppFirstInstallTime(Context context){ PackageInfo packageInfo; try { if(Build.VERSION.SDK_INT>8/*Build.VERSION_CODES.FROYO*/ ){ packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0); return packageInfo.firstInstallTime; }else{ //firstinstalltime unsupported return last update time not first install time ApplicationInfo appInfo = context.getPackageManager().getApplicationInfo(context.getPackageName(), 0); String sAppFile = appInfo.sourceDir; return new File(sAppFile).lastModified(); } } catch (NameNotFoundException e) { //should never happen return 0; } } 

Answer 4

此方法返回string格式的安装date如12/25/2016 10:38:02 ：

  private String getInstallDate() { // get app installation date PackageManager packageManager = getActivity().getPackageManager(); long installTimeInMilliseconds; // install time is conveniently provided in milliseconds Date installDate = null; String installDateString = null; try { PackageInfo packageInfo = packageManager.getPackageInfo(getActivity().getPackageName(), 0); installTimeInMilliseconds = packageInfo.firstInstallTime; installDateString = MiscUtilities.getDate(installTimeInMilliseconds, "MM/dd/yyyy hh:mm:ss"); } catch (PackageManager.NameNotFoundException e) { // an error occurred, so display the Unix epoch installDate = new Date(0); installDateString = installDate.toString(); } return installDateString; }