Merge pull request #7 from hramos/feature/add-subtitle

Add support for subtitle field (iOS)

Author: nicko170

Diff for: src/ExpoMessage.php

@@ -13,6 +13,13 @@ class ExpoMessage
      */
     protected $title;
 
+    /**
+     * The message subtitle (iOS).
+     *
+     * @var string
+     */
+    protected $subtitle;
+
     /**
      * The message body.
      *
@@ -100,6 +107,19 @@ public function title(string $value): ExpoMessage
         return $this;
     }
 
+    /**
+     * Set the message subtitle (iOS).
+     *
+     * @param  string  $value
+     * @return $this
+     */
+    public function subtitle(string $value): ExpoMessage
+    {
+        $this->subtitle = $value;
+
+        return $this;
+    }
+
     /**
      * Set the message body.
      *
@@ -230,6 +250,9 @@ public function toArray(): array
             'data'      =>  $this->jsonData,
             'priority'  =>  $this->priority,
         ];
+        if (! empty($this->subtitle)) {
+            $message['subtitle'] = $this->subtitle;
+        }
         if (! empty($this->channelId)) {
             $message['channelId'] = $this->channelId;
         }

Diff for: tests/ExpoMessageTest.php

@@ -44,6 +44,13 @@ public function it_can_set_the_title()
         $this->assertEquals('Title', Arr::get($this->message->toArray(), 'title'));
     }
 
+    /** @test */
+    public function it_can_set_the_subtitle()
+    {
+        $this->message->subtitle('Subtitle');
+        $this->assertEquals('Subtitle', Arr::get($this->message->toArray(), 'subtitle'));
+    }
+
     /** @test */
     public function it_can_set_the_body()
     {