ios编辑下拉菜单（ios下拉菜单自定义设置）

本文实例为大家分享了简单封装的iOS下拉选择菜单代码，供大家参考，具体内容如下

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 // // OrderListDownMenu.h #import <UIKit/UIKit.h> @protocol OrderListDownMenuDelegate <NSObject> - (void)OrderListDownMenu:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath; @end typedef void(^Dismiss)(void); @interface OrderListDownMenu : UIView<UITableViewDataSource, UITableViewDelegate> @property (nonatomic, strong) UITableView *tableView; @property (nonatomic, assign) id<OrderListDownMenuDelegate> delegate; @property (nonatomic, strong) NSArray *arrData; @property (nonatomic, strong) NSArray *arrImgName; @property (nonatomic, copy) Dismiss dismiss; - (instancetype)initWithDataArr:(NSArray *)dataArr origin:(CGPoint)origin width:(CGFloat)width rowHeight:(CGFloat)rowHeight; - (void)dismissWithCompletion:(void (^)(OrderListDownMenu *object))completion; @end

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 #import "OrderListDownMenu.h" #define TopToView 63.0f #define rightToView kScreenWidth - 15.0f #define LeftToView kScreenWidth - 145.0 - 10.0f #define CellLineEdgeInsets UIEdgeInsetsMake(0, -80, 0, 0) #define kScreenWidth [UIScreen mainScreen].bounds.size.width #define kScreenHeight [UIScreen mainScreen].bounds.size.height @interface OrderListDownMenu() @property (nonatomic, assign) CGPoint origin; @property (nonatomic, assign) CGFloat rowHeight; @end @implementation OrderListDownMenu - (instancetype)initWithDataArr:(NSArray *)dataArr origin:(CGPoint)origin width:(CGFloat)width rowHeight:(CGFloat)rowHeight { self = [super initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight)]; if (self) { if (rowHeight <= 0) { rowHeight = 50; } // 设置背景颜色 self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.2]; self.origin = origin; self.rowHeight = rowHeight; self.arrData = [dataArr copy]; self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(origin.x + LeftToView, origin.y + TopToView, width, rowHeight * dataArr.count) style:UITableViewStylePlain]; _tableView.dataSource = self; _tableView.delegate = self; [self addSubview:_tableView]; _tableView.backgroundColor = [UIColor whiteColor]; _tableView.layer.cornerRadius = 2; _tableView.bounces = NO; _tableView.layer.cornerRadius = 8; _tableView.separatorColor = [UIColor colorWithWhite:0.3 alpha:1]; _tableView.separatorStyle = UITableViewCellSelectionStyleNone; [_tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"]; if ([self.tableView respondsToSelector:@selector(setSeparatorInset:)]) { [self.tableView setSeparatorInset:CellLineEdgeInsets]; } if ([self.tableView respondsToSelector:@selector(setLayoutMargins:)]) { [self.tableView setLayoutMargins:CellLineEdgeInsets]; } } return self; } - (void)layoutSubviews { [super layoutSubviews]; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return self.arrData.count; } - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return self.rowHeight; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"]; cell.textLabel.textColor = THEME_COLOR_GRAY_1; cell.textLabel.font = [UIFont systemFontOfSize:15]; cell.textLabel.text = self.arrData[indexPath.row]; if (self.arrImgName.count > indexPath.row) { cell.imageView.image = [UIImage imageNamed:self.arrImgName[indexPath.row]]; cell.imageView.contentMode = UIViewContentModeScaleAspectFit; } UILabel *label = [[UILabel alloc] init]; label.frame = CGRectMake(0, 49, _tableView.frame.size.width, 0.5); label.backgroundColor = THEME_SEPARATOR_COLOR; [cell.contentView addSubview:label]; return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { if([self.delegate respondsToSelector:@selector(OrderListDownMenu:didSelectRowAtIndexPath:)]){ [self.delegate OrderListDownMenu:tableView didSelectRowAtIndexPath:indexPath]; } [tableView deselectRowAtIndexPath:indexPath animated:YES]; [self dismissWithCompletion:nil]; } - (void)dismissWithCompletion:(void (^)(OrderListDownMenu *object))completion { __weak __typeof(self) weakSelf = self; [UIView animateWithDuration:0.2 animations:^{ weakSelf.alpha = 0; weakSelf.tableView.frame = CGRectMake(weakSelf.origin.x + LeftToView + 145, weakSelf.origin.y + TopToView, 0, 0); } completion:^(BOOL finished) { [weakSelf removeFromSuperview]; if (completion) { completion(weakSelf); } if (weakSelf.dismiss) { weakSelf.dismiss(); } }]; } - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; if (![touch.view isEqual:self.tableView]) { [self dismissWithCompletion:nil]; } } - (void)drawRect:(CGRect)rect { //[colors[serie] setFill]; //拿到当前视图准备好的画板 CGContextRef context = UIGraphicsGetCurrentContext(); //利用path进行绘制三角形 CGContextBeginPath(context);//标记 CGContextMoveToPoint(context, rightToView - 13, 53);//设置起点 CGContextAddLineToPoint(context, rightToView - 21, TopToView); CGContextAddLineToPoint(context, rightToView - 4, TopToView); CGContextClosePath(context);//路径结束标志，不写默认封闭 [self.tableView.backgroundColor setFill]; //设置填充色 [self.tableView.backgroundColor setStroke]; //设置边框颜色 CGContextDrawPath(context, kCGPathFillStroke);//绘制路径path } @end