[iOS Dev] 不要套用UIBarStyleBlackTranslucent在NavigationBar上

今天用UIBarStyleBlackTranslucent在NavigationBar上, 發現整個top的位置會跑掉, 然後搜尋過後原來也有人遇到一樣的問題 Reference: http://stackoverflow.com/questions/228319/navigation-controller-transparent-bar-style-is-not-working

[iOS Dev] 點擊狀態列捲軸往上問題 Tap statusbar scroll to top doesn't work

我有一個UITableView結果發現scroll到下面時

竟然無法點statusbar自動捲到最上面

後來發現是因為我的UITableViewCell裡有UIWebView, 所以action被搶走了

所以只要把UIWebView的scroll to top關掉, 就可以避免這個問題

Code (iOS5):

webView.scrollView.scrollsToTop = NO; 

[iOS Dev] 更改UIKeyboard的底色為黑色

    [inputTextView becomeFirstResponder];
    [inputTextView setKeyboardAppearance:UIKeyboardAppearanceAlert];

原本的Default

更改keyboardAppearance 為 UIKeyboardAppearanceAlert

[iOS Dev] NSArray字串合併成NSString - How to join NSArray elements into an NSString?

Code:
Result:

Apple iOS 5.1

Reference: http://stackoverflow.com/questions/1387440/how-to-join-nsarray-elements-into-an-nsstring

[iOS Dev] 關掉UIWebView的垂直拖曳反彈 Disable UIWebView "bouncing" vertically

Reference http://stackoverflow.com/questions/500761/stop-uiwebview-from-bouncing-vertically

[iOS Dev] Parse query string into dictionary

Usage:

NSString *qs = @"username=hank&age=27&blog=whhnote.blogspot.com";
NSDictionary *queryParams = [self parseQueryString:qs];
NSLog(@"%@", queryParams);
NSLog(@"%@", [queryParams objectForKey:@"username"]); // get username from dict

So, you will get a dictionary look like

{
    age = 27;
    blog = "whhnote.blogspot.com";
    username = hank;
}

[Xcode] 設定預設文件開頭的 Organization

原本預設是 ___MyCompanyName___, 這樣新增檔案都要改一次

在Ternimal直接下此指令更改預設值

defaults write com.apple.Xcode PBXCustomTemplateMacroDefinitions '{ORGANIZATIONNAME="Hank's Company";}'

之後就不用改了

[iOS Dev] NSUserDefaults Save/Read/Clear 儲存/讀取/清除 速記

參考: NSUserDefaults Class Reference