UISearchBar的使用心得

UISearchBar是无法修改其  textField的大小的

http://stackoverflow.com/questions/556814/changing-the-size-of-the-uisearchbar-textfield

The text field used in UISearchBar is a subclass of UITextField called UISearchBarTextField.

AFAIK, there's no way to resize a UISearchBarTextField using the public API, and the private APIdoesn't reveal much either.

Maybe you can take a look at UISearchBarTextField's subviews, if it has any.

- (void)layoutSubviews {
	UITextField *searchField;
	NSUInteger numViews = [self.subviews count];
	for(int i = 0; i < numViews; i++) {
		if([[self.subviews objectAtIndex:i] isKindOfClass:[UITextField class]]) { //conform?
			searchField = [self.subviews objectAtIndex:i];
		}
	}
	if(!(searchField == nil)) {
		searchField.textColor = [UIColor redColor];
	//	[searchField setBackground: [UIImage imageNamed:@"esri.png"] ];
		[searchField setBorderStyle:UITextBorderStyleRoundedRect];
		UIImage *image = [UIImage imageNamed: @"esri.png"];
		UIImageView *iView = [[UIImageView alloc] initWithImage:image];
		searchField.leftView = iView;
		[iView release];

	}

	[super layoutSubviews];
}


// 设置搜索栏输入框形状
    UITextField *searchField = nil;
    for (UIView *subview in searchBar.subviews) {
        if ([subview isKindOfClass:[UITextField class]]) {
            searchField = (UITextField *)subview;
            break;
        }
    }
    if (searchField) {
        searchField.borderStyle = UITextBorderStyleRoundedRect;
    }
    // 设置搜索栏输入框边框颜色
    searchField.layer.cornerRadius = 8.0f;
    searchField.layer.masksToBounds = YES;
    searchField.layer.borderColor = [[UIColor colorWithRed:118.0f/255.0f green:193.0f/255.0f blue:220.0f/255.0f alpha:1.0f]CGColor];
    searchField.layer.borderWidth = 2.0f;