add share file to TMail on android

android/app/src/main/AndroidManifest.xml

@@ -29,7 +29,7 @@
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
-            android:launchMode="singleTop"
+            android:launchMode="singleTask"
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
@@ -69,6 +69,40 @@
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:mimeType="text/*" />
             </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="image/*" />
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.SEND_MULTIPLE" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="image/*" />
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="video/*" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.SEND_MULTIPLE" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="video/*" />
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="*/*" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.SEND_MULTIPLE" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="*/*" />
+            </intent-filter>
         </activity>
 
        <provider

android/app/src/main/kotlin/com/linagora/android/tmail/MainActivity.kt

@@ -1,10 +1,23 @@
 package com.linagora.android.tmail
 
+import android.os.Bundle
+import android.os.PersistableBundle
 import io.flutter.embedding.android.FlutterFragmentActivity
 import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.plugins.GeneratedPluginRegistrant
+import android.content.Intent.FLAG_ACTIVITY_NEW_TASK
 
 class MainActivity: FlutterFragmentActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?, persistentState: PersistableBundle?) {
+        if (intent.getIntExtra("org.chromium.chrome.extra.TASK_ID", -1) == this.taskId) {
+            this.finish()
+            intent.addFlags(FLAG_ACTIVITY_NEW_TASK);
+            startActivity(intent);
+        }
+        super.onCreate(savedInstanceState, persistentState)
+    }
+
     override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
         GeneratedPluginRegistrant.registerWith(flutterEngine)
     }