使用uibezierpath实现progressview实现的效果如下:

界面采用uitableview和tabelviewcell的实现,红色的视图采用uibezierpath绘制.注意红色的部分左上角,左下角是直角哟!!!!不多说<这里才是用uibezierpath实现的真正愿意啦!!!

控制器代码:

? 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 // // ViewController.m // ProgressViewDemo // // Created by 思 彭 on 2017/4/20. // Copyright © 2017年 思 彭. All rights reserved. // #import "ViewController.h" #import "ProgressTableViewCell.h" @interface ViewController ()<UITableViewDelegate, UITableViewDataSource> @property (nonatomic, strong) UITableView *tableView; @property (nonatomic, strong) CAShapeLayer *layer; @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; self.navigationItem.title = @"ProgressDemo"; [self setUI]; } #pragma mark - 设置界面 - (void)setUI { self.tableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height) style:UITableViewStyleGrouped]; self.tableView.delegate = self; self.tableView.dataSource = self; self.tableView.backgroundColor = [UIColor clearColor]; // 注册cell [self.tableView registerClass:[ProgressTableViewCell class] forCellReuseIdentifier:@"cell"]; self.tableView.tableFooterView = [[UIView alloc]init]; [self.view addSubview:self.tableView]; } #pragma mark - UITableViewDataSource - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return 5; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { ProgressTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath]; return cell; } #pragma mark - UITableViewDelegate - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section { return 0.001f;; } - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section { return 0.0001f; } - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return 44; } @end

TabelViewCell代码:

? 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 // // ProgressTableViewCell.m // ProgressViewDemo // // Created by 思 彭 on 2017/4/21. // Copyright © 2017年 思 彭. All rights reserved. // #import "ProgressTableViewCell.h" #import "Masonry.h" #import "ProgressView.h" @interface ProgressTableViewCell () @property (nonatomic, strong) UILabel *titleLabel; @property (nonatomic, strong) ProgressView *progressView; @property (nonatomic, strong) UILabel *numberLabel; @end @implementation ProgressTableViewCell - (void)awakeFromNib { [super awakeFromNib]; // Initialization code } - (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier { if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) { [self createSubViews]; [self layOut]; } return self; } - (void)createSubViews { self.titleLabel = [[UILabel alloc]init]; self.titleLabel.font = [UIFont systemFontOfSize:16]; self.titleLabel.text = @"西单大悦城"; self.titleLabel.textAlignment = NSTextAlignmentLeft; [self.contentView addSubview:self.titleLabel]; self.progressView = [[ProgressView alloc]init]; self.progressView.backgroundColor = [UIColor whiteColor]; self.progressView.progress = arc4random_uniform(100) + 40; [self.contentView addSubview:self.progressView]; self.numberLabel = [[UILabel alloc]init]; self.numberLabel.font = [UIFont systemFontOfSize:16]; self.numberLabel.text = @"￥2000"; self.numberLabel.textAlignment = NSTextAlignmentRight; [self.contentView addSubview:self.numberLabel]; } - (void)layOut { [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) { make.left.mas_equalTo(self.contentView).offset(10); make.centerY.mas_equalTo(self.contentView); // make.width.greaterThanOrEqualTo(@(70)); make.width.mas_equalTo(self.contentView.frame.size.width * 0.3); }]; [self.progressView mas_makeConstraints:^(MASConstraintMaker *make) { make.left.mas_equalTo(self.titleLabel.mas_right).offset(10); make.height.mas_equalTo(20); make.centerY.mas_equalTo(self.titleLabel.mas_centerY); make.width.mas_equalTo(self.contentView.frame.size.width * 0.4); }]; [self.numberLabel mas_makeConstraints:^(MASConstraintMaker *make) { make.left.mas_equalTo(self.progressView.mas_right).offset(10); make.centerY.mas_equalTo(self.contentView); make.right.mas_equalTo(self.contentView).offset(-10); }]; } @end

ProgressView代码:

? 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 // // ProgressView.m // ProgressViewDemo // // Created by 思 彭 on 2017/4/20. // Copyright © 2017年 思 彭. All rights reserved. // #import "ProgressView.h" @interface ProgressView () @end @implementation ProgressView -(void)drawRect:(CGRect)rect{ // 创建贝瑟尔路径 /* CGFloat width = self.progress / rect.size.width * rect.size.width; // 显示的宽度 = 服务器返回的数值 / 设置的总宽度 * 满值; 显示的宽度= 满值 * 比例值 比例值 = 服务器返回的宽度 / 满值 */ CGFloat width = rect.size.width * self.progress / rect.size.width; // 显示的宽度 = 服务器返回的数值 * 设置的总宽度 / 满值; UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, width, rect.size.height) byRoundingCorners:UIRectCornerTopRight|UIRectCornerBottomRight cornerRadii:CGSizeMake(rect.size.height, rect.size.height)]; [[UIColor redColor] setFill]; [path fill]; } - (void)setProgress:(CGFloat)progress{ _progress = progress; // 重绘，系统会先创建与view相关联的上下文，然后再调用drawRect [self setNeedsDisplay]; } @end

是不是超级简单。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。