te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>swift - How to detect when a specific app is running and send a notification in iOS? - Stack Overflow

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    swift - How to detect when a specific app is running and send a notification in iOS? - Stack Overflow

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    I'm trying to develop an iOS app that monitors whether a specific app is running and then sends a local notification after a certain period.

    On Android, I can achieve this using UsageStatsManager or AccessibilityService, which allows me to detect foreground apps and trigger a notification.

    However, in iOS, it seems there are strict limitations on detecting which apps are running. After researching, I found that:

    UIApplication.shared.canOpenURL() requires explicit whitelisting in Info.plist, but it only checks if an app can be opened, not whether it's currently running. Screen Time API (Family Controls) may allow tracking app usage, but it's only available for parental control apps and requires special entitlements. Background App Refresh cannot track other apps.

    What I want to achieve: Detect when a specific app is running in iOS. After a certain period (e.g., 5 minutes), send a local notification reminding the user to stop using the app.

    Questions: Is there any way to detect when a specific app is running in iOS?

    Are there any workarounds (e.g., via Screen Time API or other system features) to track app usage for this purpose?

    If direct detection is impossible, what alternative solutions could achieve a similar user experience?

    Any guidance or alternative approaches would be greatly appreciated! Thanks in advance.

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