Receiving Dynamic Links in Firebase

In this section, we will discuss how we can receive the Dynamic Link. So, for receiving the Firebase Dynamic Links, which we have created before, include the Dynamic Links SDK in our app. We also need to call the FirebaseDynamicLinks.getDynamicLink() method, when our app loads to get the data passed in the Dynamic Link. We must add a new Intent filter to the activity which handles deep link for our app. The intent filter should catch a deep link of our domain since the Dynamic Link will redirect to our domain, if our app is installed. This is required for our app to receive the Dynamic Link data after it is installed/updated from the play store and one tap on the continue button.

When a user opens a dynamic link with a deep link to the scheme and host, which we specified, our app will start the activity with this intent filter to handle the link.

AndroidManifest.xml

  <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:host=”kotlin.example.com”                          android:scheme=”https”/>  </intent-filter>  

Handle Deep Links

For handling deep links, we have to call the getDynamicLink() method in every activity which might be launched by the link, even though the link might be available from the intent using getIntent().getData(). When we call the getDynamicLink(), it retrieves the link and clears that data, so it is received only once by our app. We can normally call getDynamicLink() in the main activity as well as any activity launched by the intent filter, which matches the link.

  FirebaseDynamicLinks.getInstance()      .getDynamicLink(intent)      .addOnSuccessListener(this) { pendingDynamicLinkData ->          // Getting deep link from result (may be null if no link is found)          var deepLink: Uri? = null          if (pendingDynamicLinkData != null) {              deepLink = pendingDynamicLinkData.link          }            // Handle the deep link. For example, opening the linked          // content, or applying promotional credit to the user’s          // account.          // …  }  .addOnFailureListener(this) { e -> Log.w(TAG, “getDynamicLink:onFailure”, e) }  

activity_main.xml

MainActivity.kt

  package com.example.dynamiclink    import android.content.Intent  import android.net.Uri  import androidx.appcompat.app.AppCompatActivity  import android.os.Bundle  import android.util.Log  import android.widget.Toast  import com.google.firebase.dynamiclinks.DynamicLink  import com.google.firebase.dynamiclinks.FirebaseDynamicLinks  import kotlinx.android.synthetic.main.activity_main.*    class MainActivity : AppCompatActivity() {        override fun onCreate(savedInstanceState: Bundle?) {          super.onCreate(savedInstanceState)          setContentView(R.layout.activity_main)            // Creating a deep link and display it in the UI          val newDeepLink = buildDeepLink(Uri.parse(DEEP_LINK_URL))          linkViewSend.text = newDeepLink.toString()            // Share button click listener          buttonShare.setOnClickListener {  shareDeepLink(newDeepLink.toString())  }            FirebaseDynamicLinks.getInstance()              .getDynamicLink(intent)              .addOnSuccessListener(this) { pendingDynamicLinkData ->                  // Getting deep link from result (may be null if no link is found)                  var deepLink: Uri? = null                  if (pendingDynamicLinkData != null) {                      deepLink = pendingDynamicLinkData.link                  }                    // Handle the deep link. For example, opening the linked                  // content, or applying promotional credit to the user’s                  // account.                  // …                    // Display deep link in the UI                  if (deepLink != null) {                      Toast.makeText(getApplicationContext(),”Found Deep Link!”, Toast.LENGTH_LONG).show()                      linkViewReceive.text = deepLink.toString()                  } else {                      Log.d(TAG, “getDynamicLink: no link found”)                  }              }              .addOnFailureListener(this) { e -> Log.w(TAG, “getDynamicLink:onFailure”, e) }      }        fun buildDeepLink(deepLink: Uri): Uri {          val dynamicLink = FirebaseDynamicLinks.getInstance().createDynamicLink()              .setLink(Uri.parse(deepLink.toString()))              .setDomainUriPrefix(“https://rastogi.page.link”)              // Open links with this app on Android              .setAndroidParameters(DynamicLink.AndroidParameters.Builder().build())              // Open links with com.example.ios on iOS              .setIosParameters(DynamicLink.IosParameters.Builder(“com.example.ios”).build())              .buildDynamicLink()            val dynamicLinkUri = dynamicLink.uri            return dynamicLinkUri;      }        private fun shareDeepLink(deepLink: String) {          val intent = Intent(Intent.ACTION_SEND)          intent.type = “text/plain”          intent.putExtra(Intent.EXTRA_SUBJECT, “Firebase Deep Link”)          intent.putExtra(Intent.EXTRA_TEXT, deepLink)            startActivity(intent)      }        companion object {            private const val TAG = “MainActivity”          private const val DEEP_LINK_URL = “https://kotlin.example.com/deeplinks”      }  }  

Output

Click Here to Download Dynamic Link Project

Next TopicAdMob with Firebase

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Receiving Dynamic Links in Firebase

Receiving Dynamic Links in Firebase

AndroidManifest.xml

Handle Deep Links

activity_main.xml

MainActivity.kt

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