SGPopSelectView.h
@interface SGPopSelectView : UIView
@property (nonatomic, assign) SEL selector;
@property (nonatomic, assign) IMP functionIMP;
@end
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SGPopSelectView.m
@interface SGPopSelectView () <UITableViewDelegate, UITableViewDataSource>
@property (nonatomic, strong) UITableView *tableView;
@end
@implementation SGPopSelectView
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
_selectedIndex = indexPath.row;
[tableView reloadData];
self.functionIMP(self, _selector, indexPath.row);//当选择菜单的某一项时，调用方法指针指向的方法
}
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UIHotWordViewController.h
#import <UIKit/UIKit.h>
#import "REMenu.h"
#import "SGPopSelectView.h"
@interface UIHotWordViewController : UIViewController
@property (strong,nonatomic) REMenu *menu;
@property (retain, nonatomic) IBOutlet UIButton *btnHotWord;
@property (nonatomic, strong) SGPopSelectView *popView;
@property (nonatomic, strong) NSArray *selections;
@property (nonatomic, retain) NSString *r;
@end
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UIHotWordViewController.m
- (void)viewDidLoad {
[super viewDidLoad];
self.selections = @[@"句子",@"作品",@"作者"];
self.popView = [[SGPopSelectView alloc] init];
self.popView.selector = @selector(rows_selected:);//指定selector
self.popView.functionIMP = [self methodForSelector:@selector(rows_selected:)];//指定函数指针
}
-(void) rows_selected:(NSInteger) idx {
NSLog(@"选择了项%d", idx);//选择菜单后会调用此方法
}