custom-push-message.php

<?php

/**
 * Overwrites the push notification title only for iOS for the AppPush plugin when sending
 * push notification for a regular post.
 * 
 * Place this file in the wp-content/mu-plugins folder.
 * The mu-plugins folder is not there by default, you may have to create it.
 */

function custom_push__ios( $data ) {

	global $post;

	if( ! isset( $post ) ) {
		return $data;
	}

	if( !isset( $data['custom'] ) ) {
		$data['custom'] = array();
	}


	/**
	 * Sample:
	 * 
	 * Overwrite the title and message for iOS only.
	 * 
	 */

	$data['custom']['ios'] = array(
		
		// When the app is open, the title of the alert pop-up
		'title' => 'the alert message',

		// When the app is closed, the text in the notification tray
		// and when the app is open, the text of the alert pop-up
		'alert' => $post->post_title, 
	);

	return $data;
}
add_filter( 'ap3_send_push_data', 'custom_push__ios', 10, 1 );