画像の仕様

一般的に、小さくて高品質な画像ほど読み込みが速くなるため、希望する出力を達成するために可能な限り小さなアセットを使用することをお勧めします。特定のチャネルで画像を最大限に使用するには、この記事の詳細を参照すること。

常にさまざまなデバイスでメッセージをプレビューしてテストし、画像とメッセージの最も重要な領域が期待どおりに表示されることを確認する必要があります。

We recommend the following payload sizes:

Messaging system	Recommended payload
iOS (pre-iOS 8)	0.256 KB
iOS (post-iOS 8)	2 KB
Android (FCM)	4 KB

アプリ内メッセージ

Modal in-app messages are designed to fit the device at the best and most filling ratios possible, while staying true to the size and ratios of your chosen image or copy for your message.

While there are no limits to how many text characters you can include in an in-app message (as well as buttons, headline, main body, and others), we moderate how many text characters you use. Too much text will require users to expand and scroll the message.

All in-app messages have a recommended image size of 500 KB, maximum image size of 5 MB, and support PNG, JPG, and GIF file types.

• portrait
• landscape
• slideup
• modal

Font Awesome

Braze では、モーダルアプリ内メッセージアイコンに Font Awesome v4.3.0 を使用できます。

プッシュ通知

Message type	Max message length	Max title length
iOS lock screen	175 characters	43 characters
iOS notification	175 characters	43 characters
iOS banner alert	85 characters	43 characters
Android lock screen	49 characters	43 characters
Android notification drawer	597 characters	43 characters

The recommended image size for all push images is 500 KB.

Image type	Aspect ratio	Image quality	Maximum image size	File types	Notes
iOS	2:1 (recommended)	1038 x 1038 px maximum	5 MB	PNG, JPG, GIF	As of January 2020, iOS rich push notifications can handle images 1038 x 1038 px as long as they are under 10 MB, but we recommend using as small a file size as possible. In practice, sending large files can cause both unnecessary network stress and make download timeouts more common. For more information, see iOS rich notifications.
Android push icon	1:1	N/A	500 KB	PNG, JPG
Android expanded notification image	2:1	Small: 512 x 256 px Medium: 1024 x 512 px Large: 2048 x 1024 px	500 KB	PNG, JPG	Used in Android rich notifications.
Android incline image	3:2	N/A	N/A	PNG, JPG	For more details, see Android inline image push.

メールアドレス

Email type	Recommended maximum properties
Text only	25 KB
Text with images	60 KB
Email width	600 px

Image specifications	Recommended maximum properties
Size	5 MB
Width	Header: 600 px Body: 480 px
File types	PNG, JPG, GIF

Text specifications	Recommended maximum properties
Subject line length	35 characters 6 to 10 words
"From: Name" length	25 characters
Pre-header length	85 characters

画像行動

Layout	Behavior
Image and text	Tall or narrow images will scale down and be horizontally centered. Wide images will be clipped on the left and right edges.
Image only	The message will resize to fit images of most aspect ratios.