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ApplicationInfo

ApplicationInfo is a class that contains information about a particular Android application. The information is collected from the application's AndroidManifest.xml's <application> tag.

Basic Usages​

Getting ApplicationInfo​

The first thing you might want to do is retrieve the ApplicationInfo instance.

Getting Own ApplicationInfo​

You can retrieve your app's ApplicationInfo instance by using getApplicationInfo() method and pass your own package name as parameter:

import android.content.Context
import android.util.Log

try {
    val applicationInfo = context.packageManager.getApplicationInfo(
        context.packageName,
        0,
    )
} catch (e: Exception) {
    Log.e("TAG", e.message, e)
}

Getting Other Application's ApplicationInfo​

You can retrieve other app's ApplicationInfo instance by using the same method, but you need to add the package name into your AndroidManifest.xml's <queries> tag:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <application>
    </application>

    <queries>
        <package android:name="com.hanmajid.myotherapp" />
    </queries>

</manifest>

Then, you can retrieve the app's ApplicationInfo like this:

import android.content.Context
import android.util.Log

try {
    val applicationInfo = context.packageManager.getApplicationInfo(
        "com.hanmajid.myotherapp",
        0,
    )
} catch (e: Exception) {
    Log.e("TAG", e.message, e)
}

Properties​

Application Category​

Application category is a value that can be set in the application's AndroidManifest.xml's attribute. We can retrieve this value in ApplicationInfo by using category property.

val appCategory = applicationInfo.category

Storage UUID​

We can retrieve the UUID of the storage volume on which the application is being hosted by using storageUuid property.

val storageUuid = applicationInfo.storageUuid

References​

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