adding a new activity for handling Send intent

app/src/main/AndroidManifest.xml

@@ -83,6 +83,19 @@
             </intent-filter>
         </activity>
 
+        <activity
+            android:name=".activities.SaveAsActivity"
+            android:label="@string/save_as">
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+
+                <data android:mimeType="text/plain" />
+                <data android:mimeType="image/*" />
+                <data android:mimeType="video/*" />
+            </intent-filter>
+        </activity>
+
         <activity
             android:name=".activities.SettingsActivity"
             android:label="@string/settings"

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/SaveAsActivity.kt

@@ -0,0 +1,20 @@
+package com.simplemobiletools.filemanager.pro.activities
+
+import android.content.Intent
+import android.os.Bundle
+import com.simplemobiletools.commons.extensions.toast
+import com.simplemobiletools.filemanager.pro.R
+
+class SaveAsActivity : SimpleActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_save_as)
+
+        if (intent.action == Intent.ACTION_SEND && intent.extras?.containsKey(Intent.EXTRA_STREAM) == true) {
+
+        } else {
+            toast(R.string.unknown_error_occurred)
+            finish()
+        }
+    }
+}

app/src/main/res/layout/activity_save_as.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/activity_save_as_holder"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+</RelativeLayout>