摘要： #importIn the C language, the#includepre-compile directive always causes a file's contents to be inserted into the source at that point. Objective-C has the equivalent#importdirective except each file is included only once per compilation unit, obviating（去除） the need forinclude guards.for exampl 阅读全文

摘要： 1、首先缓存图片，等待后面利用本地url来取dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ TTURLCache *cache = [TTURLCache sharedCache]; for (NSDictionary *item in results) { if (![cache hasDataForKey:[item objectForKey:@"thumb_url"] expires:3000]) { [cache stor... 阅读全文

摘要： http://www.gocalf.com/blog/iphone-dev-hide-status-bar.html1、在info.plist里面 Status bar is initially hidden 设置为 YES2、在appDelagate里面 设置[application setStatusBarHidden:NOwithAnimation:UIStatusBarAnimationFade]; 即可。App启动时就隐藏状态栏用了上面的方法之后，App在运行过程中，状态栏确实被隐藏起来了，但是我发现在App启动的那个瞬间，还是可以看到状态栏的，然后一闪即过。虽然时间很短暂，看着还是 阅读全文