How to make multiple Deep Linking in two different activity without duplicate the app android

问题

I am using deep linking to share my active link to different applications like WhatsApp. The problem is I want to share 2 different activities. Now I am able to share them but if we assume I will share activity A. After clicking on the link, I will see my application option well that's fine and it will take me to activity A.

But now if I do share to activity B.When I try to click on the link, my application will appear twice at one time, and if I choose what was previously chosen by activity A, it will take me to my activity A.This is a wrong choice, so the requested activity will not work.

See the pictures for clarification this is activity A:

And this is activity B here problem :

As you can see my app come at two time.

So what is the problem are there anyone know solve to this problem help me.

this is manifest code:

<!--   1-->
        <activity
            android:name=".FragmanM.MainActivityM" >

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>

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

                <data
                    android:scheme="http"
                    android:host="============"
                    android:pathPrefix="/post" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data
                    android:scheme="https"
                    android:host="==============="
                    android:pathPrefix="/post" />
            </intent-filter>
        </activity>

<!--    2   -->

        <activity
            android:name=".FragmantA.MainActivityA" >
            <intent-filter >

                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>

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

                <data
                    android:scheme="http"
                    android:host="================"
                    android:pathPrefix="/posts" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data
                    android:scheme="https"
                    android:host="==============="
                    android:pathPrefix="/posts" />
            </intent-filter>
        </activity>

this activity A

Uri data =getActivity(). getIntent().getData();

        if (data!= null) {
            try {
                post_id =  data.getLastPathSegment().toString();
                getPost(post_id);


            } catch (NumberFormatException e) {
                post_id=null;
            }



        }


        Bundle bundle = getActivity().getIntent().getExtras();
        if (bundle !=null){
            if(post_id==null){
                post_id =bundle.getString("mid");


                getPost(post_id);


            }

        }

this is activity B

Uri data =getActivity(). getIntent().getData();

        if (data!= null) {
            try {
                posts_id =  data.getLastPathSegment().toString();
                getPost(posts_id);



            } catch (NumberFormatException e) {
                posts_id=null;
            }



        }


        Bundle bundle = getActivity().getIntent().getExtras();
        if (bundle !=null){
            if(posts_id==null){
                posts_id =bundle.getString("moid");
                getPost(posts_id);


            }

        }

回答1:

Both of your activities are providing intent filters but the reason for this is, you are providing a similar path prefix.

What I mean by this is in your first activity i.e .FragmanM.MainActivityM you have mentioned

 <data
      android:scheme="http"
      android:host="============"
      android:pathPrefix="/post" /> 

And in .FragmantA.MainActivityA you have written this

 <data
      android:scheme="http"
      android:host="============"
      android:pathPrefix="/posts" /> 

Now take a look at the pathPrefix

By the definition and according to documentation pathPrefix :

The pathPrefix attribute specifies a partial path that is matched against only the initial part of the path in the Intent object

So when you come across links such as this: www.yourhost.com/posts the first activity also gets shown and the second one also showed which is expected.

So how to fix this?

Method 1: You can remove intent-filter from your second activity and have single activity handle both paths in this case .FragmanM.MainActivityM

and inside that activity make a check-in onCreate() somewhat like this

        Uri data = getIntent().getData();
        if(data.getPath().startsWith("/posts"))
        {
            //Start Your second activity here 
        }

Method 2: Create a whole new activity just to handle links and from there you filter links and move the user to different screens

来源：https://stackoverflow.com/questions/62829550/how-to-make-multiple-deep-linking-in-two-different-activity-without-duplicate-th