如何以编程方式检查 Android 中是否安装了应用程序？

Question

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 1

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 2

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 3

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 4

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 5

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 6

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 7

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 8

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 9

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 10

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 11

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 12

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 13

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 14

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 15

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwise install the particular application.

Guide Me. I have no idea. Thanks.

Answer 16

Android 11 update
You have to specofy in the manifest the exact bundle id's you want to search for.

Example for facebook and whatsapp:

Inside the Manifest above "application" (where the permissions are)

<queries>
    <package android:name="com.whatsapp" />
    <package android:name="com.facebook.katana" />
</queries>  

This will allow you to check if facebook and whatsapp are installed, otherwise you will always get false for that check.

Further reading on the subject:
https://medium.com/androiddevelopers/package-visibility-in-android-11-cc857f221cd9

Answer 17

In Kotlin , the simplest way can be two steps

1- in the Manifest put the target app id . ex (com.src.turkey)

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <queries>
        <package android:name="com.src.turkey" />
               </queries>
...

2- In an Activity

 try {

 val list = packageManager.getLaunchIntentForPackage("com.src.turkey")
        if (list != null) {
            Log.i("TAG", "downloadApps:$list")
        }

    } catch (e: PackageManager.NameNotFoundException) {
        Log.i("TAG", "downloadApps: False")
    }

There isn't any deprecated such as

queryIntentActivities

pm.getPackageInfo