android: add stub activity for receiving file submissions

android/src/main/AndroidManifest.xml

@@ -4,13 +4,28 @@
       android:versionCode="1"
       android:versionName="1.0">
     <application android:label="@string/app_name">
-        <activity android:name="PieCannon"
+        <activity android:name=".Main"
                   android:label="@string/app_name">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity
+                android:name=".Send"
+                android:alwaysRetainTaskState="true"
+                android:configChanges="keyboard|keyboardHidden|orientation|screenSize|smallestScreenSize|screenLayout|uiMode"
+                android:label="@string/app_name"
+                android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.SEND"/>
+
+                <data android:mimeType="image/*"/>
+                <data android:mimeType="text/plain"/>
+
+                <category android:name="android.intent.category.DEFAULT"/>
+            </intent-filter>
+        </activity>        
     </application>
     <uses-sdk android:minSdkVersion="24" />
 </manifest>

android/src/main/java/net/monarchpass/piecannon/App.java

@@ -1,5 +0,0 @@
-package net.monarchpass.piecannon;
-
-import android.app.Application;
-
-public class App extends Application {}

android/src/main/java/net/monarchpass/piecannon/Main.java

@@ -0,0 +1,12 @@
+package net.monarchpass.piecannon;
+
+import android.app.Activity;
+import android.os.Bundle;
+
+public class Main extends Activity {
+    @Override
+    public void onCreate (final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+}

android/src/main/java/net/monarchpass/piecannon/Send.java

@@ -0,0 +1,21 @@
+package net.monarchpass.piecannon;
+ 
+import android.app.Activity;
+import android.os.Bundle;
+import android.content.Intent;
+import android.net.Uri;
+
+public class Send extends Activity {
+    @Override
+    public void onCreate (final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        
+        final Intent intent = getIntent();
+        if (intent.hasExtra (Intent.EXTRA_STREAM)) {
+            final Uri imageUri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
+            if (imageUri != null) {
+                // handle image
+            }
+        }
+    }
+}

android/src/main/res/layout/activity_main.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="net.monarchpass.piecannon.Main">
+</ScrollView>