Support for location messages

Start with encoding as a simple image thumbnail for compatibility
with MMS and iOS

// FREEBIE

res/layout/attachment_type_selector.xml

@@ -143,6 +143,29 @@
                       android:gravity="center"
                       android:orientation="vertical">
 
+            <LinearLayout android:layout_width="match_parent"
+                          android:layout_height="wrap_content"
+                          android:layout_weight="1"
+                          android:gravity="center"
+                          android:orientation="vertical">
+
+                <org.thoughtcrime.securesms.components.CircleColorImageView
+                        android:id="@+id/location_button"
+                        android:layout_width="60dp"
+                        android:layout_height="60dp"
+                        android:src="@drawable/ic_location_on_white_36dp"
+                        android:scaleType="center"
+                        android:elevation="4dp"
+                        app:circleColor="@color/blue_grey_400"/>
+
+                <TextView android:layout_marginTop="10dp"
+                          android:layout_width="wrap_content"
+                          android:layout_height="wrap_content"
+                          style="@style/AttachmentTypeLabel"
+                          android:text="@string/attachment_type_selector__location"/>
+
+            </LinearLayout>
+
         </LinearLayout>
 
 

res/layout/conversation_activity.xml

@@ -46,6 +46,13 @@
                     android:layout_height="wrap_content"
                     android:layout_gravity="center">
 
+                <org.thoughtcrime.securesms.components.location.SignalMapView
+                        android:id="@+id/attachment_location"
+                        android:layout_width="210dp"
+                        android:layout_height="210dp"
+                        android:layout_gravity="center_horizontal"
+                        android:visibility="gone"/>
+
                 <org.thoughtcrime.securesms.components.ThumbnailView
                         android:id="@+id/attachment_thumbnail"
                         android:layout_width="230dp"

res/layout/signal_map_view.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
+       xmlns:tools="http://schemas.android.com/tools">
+
+    <FrameLayout android:layout_width="match_parent"
+                 android:layout_height="match_parent"
+                 android:layout_weight="1">
+        <com.google.android.gms.maps.MapView
+                android:id="@+id/map_view"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:visibility="gone"/>
+
+        <ImageView android:id="@+id/image_view"
+                   android:layout_width="match_parent"
+                   android:layout_height="match_parent"
+                   android:visibility="gone"
+                   tools:src="@drawable/ic_action_warning_red"
+                   tools:visibility="visible"/>
+    </FrameLayout>
+
+    <TextView android:id="@+id/address_view"
+              android:visibility="visible"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content"
+              android:layout_weight="0"
+              android:ellipsize="end"
+              android:maxLines="1"
+              android:singleLine="true"
+              android:padding="5dp"
+              tools:text="21 Jump St, Atlanta GA 30311"/>
+
+</merge>

res/values/strings.xml

@@ -617,6 +617,7 @@
     <string name="attachment_type_selector__video">Video</string>
     <string name="attachment_type_selector__contact">Contact</string>
     <string name="attachment_type_selector__camera">Camera</string>
+    <string name="attachment_type_selector__location">Location</string>
 
     <!-- change_passphrase_activity -->
     <string name="change_passphrase_activity__old_passphrase">Old passphrase</string>