以编程方式从同一应用程序本身安装更新的 Apk.[更新 apk] [英] Install the updated Apk from the same application itself programmatically.[Update apk]

问题描述

我正在使用以下代码从我的应用程序安装应用程序.

I am using following code to install an application from my app.

 Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setDataAndType(Uri.fromFile(new File(Environment.getExternalStorageDirectory() + "/InstallTest.apk")), "application/vnd.android.package-archive");
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(intent);

让上面代码的包是com.xyz.one.现在，如果我使用上述代码安装任何其他软件包应用程序，则它可以正常工作.但是，如果我为同一应用程序(即 com.xyz.one)的更新后的 apk 版本尝试使用相同的代码，则会出现解析包时出现问题".

Let the package for above code is com.xyz.one. Now if I install any other package application with the mentioned code then it works fine. But if I try the same code for the updated apk version of the same application i.e. com.xyz.one then it gives "There is a problem parsing the package".

有人请帮助我如何从同一应用程序本身以编程方式安装 apk.

Someone please help how can I install the apk programmatically from the same application itself.

注意:我的更新 apk 存在于外部存储中.

Note: My update apk is present in external storage.

谢谢

推荐答案

关于通过文件下载更新 Android 应用程序有很多问题，而且发生了很多变化，我觉得此时更新会很好，所以就来了.

There is so many questions around updating Android Apps via file download and so much has changed that I felt an update would be good at this point so here it is.

代码已经在 Android O 及以上版本和 Android N 及以下版本测试，一切正常！

The code has been tested on Android O and above and Android N and below and all works!

在清单文件中，要支持 Android O 及更高版本，您需要

In the manifest file, to support Android O and above you will need

<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />

并且，要访问下载的文件，您需要:

and, for accessing the downloaded file you will need:

<application
    ...>

    <provider
        android:name="androidx.core.content.FileProvider"
        android:authorities="${applicationId}.FileProvider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/app_installer_path"/>
    </provider>

和引用的 XML 文件:

and the referenced XML file:

<?xml version="1.0" encoding="utf-8"?>

自从这些天以来，很多人都转向了 Kotlin，我将在下面展示该代码:

Since these days many have moved to Kotlin, I'll show that code below:

// Plain old filepath: E.g., "/storage/emulated/0/MyAppStorage/Temp/release-1.0.2039.apk"
private lateinit var appUpdateApk: String
    

以及真正起作用的代码:

And the code that does the real work:

private fun checkAndroidVersionAndInstallApk() {

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

        if (MyApplication.context.packageManager.canRequestPackageInstalls()) {
            installApk()
        } else {
            startActivityForResult(Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES, Uri.parse("package:${requireContext().packageName}")), INSTALL_PACKAGES_REQUESTCODE)
        }
    } else {
        installApk()
    }
}

private fun installApk() {

    val intent = Intent(Intent.ACTION_VIEW)
    intent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true)

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        val contentUri = FileProvider.getUriForFile(requireContext(), "${requireContext().packageName}.FileProvider", File(appUpdateApk))
        intent.setDataAndType(contentUri, "application/vnd.android.package-archive")
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
    } else {
        intent.setDataAndType(Uri.fromFile(File(appUpdateApk)), "application/vnd.android.package-archive")
    }

    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK)

    requireContext().startActivity(intent)
    requireActivity().finish()
}

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)

    logInfo("VersionCheckFragment::onActivityResult: $requestCode")

    when (requestCode) {
        INSTALL_PACKAGES_REQUESTCODE -> checkAndroidVersionAndInstallApk()
        else -> {
        }
    }
}

这篇关于以编程方式从同一应用程序本身安装更新的 Apk.[更新 apk]的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！