OTA更新设备所有者Android应用程序（Kiosk模式） [英] OTA updates for Device Owner Android Application(Kiosk mode)

问题描述

我能够让我的应用程序，通过NFC设备所有者的应用程序所提到的此处。现在我想更新我的应用程序在空中，但我无法找到一个方法不生根

I am able to make my app, the device owner app through NFC as mentioned here. Now I want to update my app over the air, but I couldn't find a method without rooting.

谷歌正在为企业发展的应用程序提供了许多选项提到此处，但无处提供了一种更新通过OTA的应用程序。

Google is providing many options for enterprises to develop apps as mentioned here, but nowhere providing a way to update the application through OTA.

寻找一个解决方案。

推荐答案

这只是纯粹的炒作，因为我从来没有尝试使用安装程序包API自己：

This is just pure speculation as I've never tried to use the package installer API myself:

您可以尝试（使用 PackageManager.setInstallerPackageName（））为您的设备拥有者的应用程序设置一个安装包。该安装包将需要一个单独的APK具有相同的证书作为设备所有者APK签名。

You could try to set an installer package for your device owner app (using PackageManager.setInstallerPackageName()). This installer package would need to be a separate APK signed with the same certificate as the device owner APK.

getPackageManager().setInstallerPackage("<device.owner.package.name>", "<installer.package.name>");

从您的安装APK，然后你可以用 PackageInstaller 来prepare更新：

From your installer APK, you could then use PackageInstaller to prepare an update:

PackageInstaller pi = getPackageManager().getPackageInstaller();
int sessId = pi.createSession(new PackageInstaller.SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL));
PackageInstaller.Session session = pi.openSession(sessId);
OutputStream out = session.openWrite("app");
// .. write updated APK file to out
session.fsync(out);
session.commit(...);
session.close();

我不知道这悄无声息，虽然安装的更新（如该工作在所有我本来期望的方式）。

I'm not sure if this silently installs your update though (or if that works at all in the way I would have expected).

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