Fix issue with in-app browser closing on app re-open (#28)

Author: mineiwik

android/app/src/main/AndroidManifest.xml

@@ -29,9 +29,13 @@
             android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|screenSize|smallestScreenSize|uiMode"
             android:exported="true"
             android:label="@string/app_name"
-            android:launchMode="singleTask"
+            android:launchMode="standard"
             android:screenOrientation="portrait"
             android:windowSoftInputMode="adjustResize">
+        </activity>
+        <activity 
+            android:name=".LaunchActivity"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />

android/app/src/main/java/io/netbird/client/LaunchActivity.java

@@ -0,0 +1,19 @@
+package io.netbird.client;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+
+public class LaunchActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        MainApplication application = (MainApplication) getApplication();
+        // check that MainActivity is not started yet
+        if (!application.isActivityInBackStack(MainActivity.class)) {
+            Intent intent = new Intent(this, MainActivity.class);
+            startActivity(intent);
+        }
+        finish();
+    }
+}

android/app/src/main/java/io/netbird/client/MainActivity.java

@@ -60,6 +60,8 @@ protected void onCreate(Bundle savedInstanceState) {
         SplashScreen.show(this);
         MainApplication application = (MainApplication) getApplication();
 
+        application.addActivityToStack(this.getClass());
+
         sendEventActionSharedPref = getSharedPreferences(SEND_EVENT_ACTION, Context.MODE_PRIVATE);
         sendEventToReactMessageKey = sendEventActionSharedPref.getString(MESSAGE_KEY, "");
 
@@ -75,4 +77,12 @@ protected void onCreate(Bundle savedInstanceState) {
             }
         });
     }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        MainApplication application = (MainApplication) getApplication();
+
+        application.removeActivityFromStack(this.getClass());
+    }
 }

android/app/src/main/java/io/netbird/client/MainApplication.java

@@ -11,13 +11,28 @@
 import com.facebook.react.defaults.DefaultReactNativeHost;
 import com.facebook.soloader.SoLoader;
 
+import java.util.ArrayList;
 import java.util.List;
 
 import io.netbird.client.tool.NetworkChangeNotifier;
 
 public class MainApplication extends Application implements ReactApplication {
     private final NotificationReceiver notificationReceiver = new NotificationReceiver();
 
+    private ArrayList<Class> runningActivities = new ArrayList<>();
+
+    public void addActivityToStack (Class cls) {
+        if (!runningActivities.contains(cls)) runningActivities.add(cls);
+    }
+
+    public void removeActivityFromStack (Class cls) {
+        if (runningActivities.contains(cls)) runningActivities.remove(cls);
+    }
+
+    public boolean isActivityInBackStack (Class cls) {
+        return runningActivities.contains(cls);
+    }
+
     private final ReactNativeHost mReactNativeHost =
             new DefaultReactNativeHost(this) {
                 @Override

src/components/InAppBrowser/utils.ts

@@ -43,7 +43,7 @@ export const openLink = async (url: string, animated = true) => {
         },
         hasBackButton: true,
         browserPackage: undefined,
-        showInRecents: false,
+        showInRecents: true,
         includeReferrer: false,
       });
     } else {