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Im installed apk into /system/priv-app folder in my Android 7.1.1 emulator so it works as privilege system app but when when I try to install apk using this code of my app

val runtime = Runtime.getRuntime()
val process = runtime.exec("pm install -r -f $apkFilePath")
process.waitFor()
val output = process.inputStream.bufferedReader().use { it.readText() }
val error = process.errorStream.bufferedReader().use { it.readText() }

In the error output I'm getting

Error: java.lang.SecurityException: Permission Denial: runInstallCreate from pm command asks to run as user -1 but is calling from user 0; this requires android.permission.INTERACT_ACROSS_USERS_FULL

I tried to add permission in the Manifest file

  <uses-permission
        android:name="android.permission.INTERACT_ACROSS_USERS_FULL"
        android:protectionLevel="signatureOrSystem"
        tools:ignore="ProtectedPermissions"
        />

But still getting the same error. I even tried

runtime.exec("pm install -r -f --user -1 $apkFilePath")

still giving the same error

What is interesting if try this code

runtime.exec("pm install -r -f --user 0 $apkFilePath")

then the error output will become NullPointerException

So why INTERACT_ACROSS_USERS_FULL permission doesn't work and --user -1 doesn't work as well? I thought system privilege app has access to install apk silently, so where is the problem then?

Arsenius
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1 Answers1

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found a way to resolve it on rooted device with system level app present in system/priv-app. install app with as su like this.

val command = "pm install -r $pathToApk"

Runtime.getRuntime().exec(arrayOf("su", "-c", command))
Waqar Afzal
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