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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>ble advertising can&amp;#39;t be searched by ios app on background</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/30055/ble-advertising-can-t-be-searched-by-ios-app-on-background</link><description>Hi， 
 my ble device mcu is 51822 with sdk11，when my ios app on frontend，it can search the ble advertising immediately，but when my app runs on background，it can&amp;#39;t search the advertising of the device。ios offical doc says that it supports ble scan on background</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 05 Feb 2018 07:56:33 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/30055/ble-advertising-can-t-be-searched-by-ios-app-on-background" /><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119669?ContentTypeID=1</link><pubDate>Mon, 05 Feb 2018 07:56:33 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:d1307644-bb58-4226-b3ad-8a7c6ef7f217</guid><dc:creator>run_ar</dc:creator><description>&lt;p&gt;So, trying to answer you question here. I do not think there are any special advertising required on the peripheral to do background scanning on iOS. obviously the service has to be present. And I would recommend you take a look at the bluetooth design guidelines from apple and also the follow the &lt;a href="https://developer.apple.com/library/content/documentation/NetworkingInternetWeb/Conceptual/CoreBluetooth_concepts/CoreBluetoothBackgroundProcessingForIOSApps/PerformingTasksWhileYourAppIsInTheBackground.html"&gt;core bluetooth background processing guide&lt;/a&gt;. Note that the scanner settings will most likely be more relaxed when iOS performs background scanning so if you have long advertisement intervals on your peripheral it could take a while for a connection to be established.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119352?ContentTypeID=1</link><pubDate>Wed, 31 Jan 2018 10:16:19 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:2373d920-ead9-4f24-9c70-c0c54fb434bb</guid><dc:creator>freedom118</dc:creator><description>&lt;p&gt;@run_ar my device is ble wrist ring.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119360?ContentTypeID=1</link><pubDate>Wed, 31 Jan 2018 10:10:55 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:b359babe-183e-4e4d-bdc1-621006d1e246</guid><dc:creator>run_ar</dc:creator><description>&lt;p&gt;@freedom118 Are you following the rules for &lt;a href="https://developer.apple.com/library/content/documentation/NetworkingInternetWeb/Conceptual/CoreBluetooth_concepts/CoreBluetoothBackgroundProcessingForIOSApps/PerformingTasksWhileYourAppIsInTheBackground.html"&gt;background processing&lt;/a&gt;? Did you remember to configure the Info.plist?&lt;br /&gt;
And also. what kind of peripheral device are you working on?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119357?ContentTypeID=1</link><pubDate>Wed, 31 Jan 2018 08:34:57 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c222a50f-cc2e-4259-92a2-9db5ca0c767b</guid><dc:creator>karthikeyan</dc:creator><description>&lt;p&gt;try ble_app_beacon example and change the company identifier and check it.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119356?ContentTypeID=1</link><pubDate>Wed, 31 Jan 2018 08:31:12 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:4528b8ee-9117-409d-9727-c1e1ca1b0fd8</guid><dc:creator>freedom118</dc:creator><description>&lt;p&gt;Thanks a lot,  my example is ble_app_uart.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119355?ContentTypeID=1</link><pubDate>Wed, 31 Jan 2018 08:26:28 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:dfd63f8b-c57f-4ffc-9081-431bd6929ceb</guid><dc:creator>karthikeyan</dc:creator><description>&lt;p&gt;which example did you started with?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119354?ContentTypeID=1</link><pubDate>Wed, 31 Jan 2018 08:25:51 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:78c9ea0a-4caf-4ccc-9f13-979466f58327</guid><dc:creator>karthikeyan</dc:creator><description>&lt;p&gt;hi, follow this link&lt;/p&gt;
&lt;p&gt;&lt;a href="https://www.bluetooth.com/specifications/assigned-numbers/company-identifiers"&gt;www.bluetooth.com/.../company-identifiers&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119353?ContentTypeID=1</link><pubDate>Wed, 31 Jan 2018 08:23:41 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:fa072db6-61c8-4f90-ac2a-9aaa0a796850</guid><dc:creator>karthikeyan</dc:creator><description>&lt;p&gt;hi,
it is apple company identifier. to run the app in background in ios device. it is mandatory.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119358?ContentTypeID=1</link><pubDate>Wed, 31 Jan 2018 08:14:11 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:af68f24b-3a8e-4360-9899-01bbd8cd0df8</guid><dc:creator>freedom118</dc:creator><description>&lt;p&gt;Dear karthikeyan，&lt;/p&gt;
&lt;pre&gt;&lt;code&gt; i have tried to set company identifier to 0x004c，but it still exists. may
&lt;/code&gt;&lt;/pre&gt;
&lt;p&gt;i ask you why is 0x004c?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ble advertising can't be searched by ios app on background</title><link>https://devzone.nordicsemi.com/thread/119359?ContentTypeID=1</link><pubDate>Wed, 31 Jan 2018 04:35:22 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:8a82caed-f44a-4890-9f6d-12ca08d4e59f</guid><dc:creator>karthikeyan</dc:creator><description>&lt;p&gt;hi,
try to change the company identifier to 0x004c&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>