AWS SNS推送通知虽然在cloudwatch中显示，但未传递给设备

Question

AWS SNS Push notification is not working for android GCM in my application though same code is working pretty good for IOS. I put cloudwatch to track down the error but it displaying status as delivered in logs but no push notification received in Device.

Relevant code of application

$platform = 1;
$token = 'user-device-token';
$gcmPlatformArn = 'AWS_GCM_ARN';
$ApnsPlatformArn = 'AWS_IOS_ARN';
$message = 'welcome';

$sns = SnsClient::factory([
    'region'  => 'my-region',
    'version' => 'latest',
    'credentials' => [
        'key' => 'my-key',
        'secret' => 'my-secret'
    ]
]);
if ($platform == 1) { //For Android
    $endPointArn = $sns->createPlatformEndpoint([
    'PlatformApplicationArn' => $gcmPlatformArn,
    'Token' => $token
    ]);
} else {
    $endPointArn = $sns->createPlatformEndpoint([
        'PlatformApplicationArn' => $ApnsPlatformArn,
        'Token' => $token
    ]);
}
$endPoint = $endPointArn['EndpointArn'];

return $sns->publish(['Message' => $message,
              'TargetArn' => $endPoint]);