iOS中的UISearchBar搜索框组件基础使用指南

        NSArray *arrayView = [viewSelf subviews];
        for(int i = 0; i < arrayView.count; i++) {
            if([[arrayView objectAtIndex:i] isKindOfClass:[UITextField class]]) {
                searchField = [arrayView objectAtIndex:i];
            }
        }
    }

    if(!(searchField == nil)) {
        //设置颜色
        searchField.textColor = [UIColor whiteColor];

        //设置背景颜色
        [searchField setBackground: [UIImage imageNamed:@"searchbar"] ];
        [searchField setBorderStyle:UITextBorderStyleNone];

        //设置placeholder的颜色
        [searchField setValue:[UIColor whiteColor] forKeyPath:@"_placeholderLabel.textColor"];

        //设置searchField上的照片
        UIImage *image = [UIImage imageNamed:@"search"];
        UIImageView *iView = [[UIImageView alloc] initWithImage:image];
        iView.frame = CGRectMake(0, 0, 15, 15);
        searchField.leftView = iView;
    }

}

@end

 

修改UISearchBar背景颜色
ISearchBar是由两个subView组成的，一个是UISearchBarBackGround,另一个是UITextField. 要IB中没有直接操作背景的属性。方法是直接将 UISearchBarBackGround移去  

复制代码
seachBar=[[UISearchBar alloc] init];  
seachBar.backgroundColor=[UIColor clearColor];  
for (UIView *subview in seachBar.subviews){    
    if ([subview isKindOfClass:NSClassFromString(@"UISearchBarBackground")])  {