UISearchBar小技巧

今早有朋友問我如何令UISearchBar的Keyboard彈出，
不過早上太多工作沒時間回他們，
所以現在Lunch時間寫出來，
給他們看看，方便我不用在MSN上說多一次

UISearchBar* searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];

// 獲取所有UISearchBar Subviews的內容
//NSLog(@"%@", [searchBar.subviews description]);

// 令UISearchBar的Keyboard彈出
[((UIControl*)[searchBar.subviews objectAtIndex:1]) becomeFirstResponder];

// 令UISearchBar沒有了背景
[((UIView*)[searchBar.subviews objectAtIndex:0]) removeFromSuperview];

[self.view addSubview:searchBar];
[searchBar release];