封装SearchBar
+(instancetype)searchBar;
实现方法
+(instancetype)searchBar
{
return [[self alloc] init];
}
-(id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// 背景
self.background = [UIImage resizedImageWithName:@"searchbar_textfield_background"];
// 左边的放大镜图标
UIImageView *iconView = [[UIImageView alloc] initWithImage:[UIImage imageWithName:@"searchbar_textfield_search_icon"]];
iconView.contentMode = UIViewContentModeCenter;
self.leftView = iconView;
self.leftViewMode = UITextFieldViewModeAlways;
// 字体
self.font = [UIFont systemFontOfSize:13];
// 右边的清除按钮
self.clearButtonMode = UITextFieldViewModeAlways;
// 设置提醒文字
NSMutableDictionary *attrs = [NSMutableDictionary dictionary];
attrs[NSForegroundColorAttributeName] = [UIColor grayColor];
self.attributedPlaceholder = [[NSAttributedString alloc] initWithString:@"搜索" attributes:attrs];
// 设置键盘右下角按钮的样式
self.returnKeyType = UIReturnKeySearch;
self.enablesReturnKeyAutomatically = YES;
}
return self;
}
-(void)layoutSubviews
{
[super layoutSubviews];
// 设置左边图标的frame
self.leftView.frame = CGRectMake(0, 0, 30, self.frame.size.height);
}
- 调用方法
SXWSearchBar *searchBar = [SXWSearchBar searchBar]; searchBar.frame = CGRectMake(0, 0, 300, 40); self.navigationItem.titleView = searchBar;
