Android – how do I open my app when I click the app link?

I want to share a link to a specific page of my application. Suppose I'm in a user's profile page in my application and want to share that user with some of my friends, so I want to share it with other applications through WhatsApp

So basically I want to share a link to my application

That's what I'm doing now

Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
    shareIntent.setType("text/plain");
    shareIntent.putExtra(android.content.Intent.EXTRA_TEXT, "https://play.google.com/store/apps/details?id=" + activity.getPackageName());
    activity.startActivity(Intent.createChooser(shareIntent, "Share"));

I know this is not what I really want, but it is partially completed. If the user has not installed my app, this code will redirect it to the Google play store page to download the app

The main problem is that when the user already owns this application, this link will only open the application. I want to redirect the user to this specific page when the user clicks the link

How can I do this?

I've heard about intent filters, but I'm not sure how to use them

<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.BROWSABLE" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="application/pdf" />

to update

Now, I try to share my app links like this

Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
    shareIntent.setType("text/plain");
    shareIntent.putExtra("PostID", postID);
    shareIntent.putExtra("UserID", userID);
    shareIntent.putExtra(android.content.Intent.EXTRA_TEXT, "https://play.google.com/store/apps/details?id=" + activity.getPackageName());
    activity.startActivity(Intent.createChooser(shareIntent, "Share"));

I declare such activities in the list

<activity
        android:name=".activities.ShareActivity"
        android:screenOrientation="sensorPortrait"
        android:theme="@style/Theme.AppCompat.Light.NoActionBar.FullScreen">

        <intent-filter>
            <action android:name="android.intent.action.SEND" />

            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />

            <data
                android:host="details"
                android:scheme="market" />
            <data
                android:host="play.google.com"
                android:pathPattern="/store/apps/details?id=my_package_name"
                android:scheme="http" />
            <data
                android:host="play.google.com"
                android:pathPattern="/store/apps/details?id=my_package_name"
                android:scheme="https" />
        </intent-filter>
    </activity>

However, when I click the link shared using WhatsApp or any other way, I still can't see my application

Please help me

Any help would be appreciated. Thank you in advance

resolvent:

In the androidmanifest of your project, add the following intent filters to your activity statement:

    <intent-filter>

        <action android:name="android.intent.action.SEND"/>
        <category android:name="android.intent.category.DEFAULT"/>

        <data android:mimeType="text/plain"/>

    </intent-filter>

Now, in the oncreate(), onresume(), or onnewintent() methods of the activity lifecycle, you can use getdata(), which triggers the intent of the activity