摘要:
- (void)applicationDidEnterBackground:(UIApplication *)application { __block UIBackgroundTaskIdentifier bgTask; bgTask = [application beginBackgroundTaskWithExpirationHandler:^{ dispatch_async(dispatch_get_main_queue(), ^{ if (bgTask != UIBackgroundTaskInvalid) { bgTask = UIBackgroundTaskInvalid; } 阅读全文
posted @ 2011-05-23 14:19
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