进度条在iOS开发中很常见的，我在项目开发中也写过好多进度条，有好多种类的，条形，圆形等，今天给大家总结一种条形的开发进度条。系统的进度条UIProgressView
简单思路：
1.自定义进度条先继承UIView 建立一个CustomBarProgressView
2.在.H文件中外漏的方法《开始的方法》《初始化的方法》
3.在.M文件中 利用定时器改变位置 实现进度条
#######效果图
1.gif
#######部分代码
-(instancetype)initWithFrame:(CGRect)frame withStartNum:(CGFloat)startNum withEndNum:(CGFloat)endNum withSignNum:(CGFloat)signNum withTime:(CGFloat)time{
if (self = [super initWithFrame:frame]) {
self.startNum = startNum;
self.endNum = endNum;
self.signNum = signNum;
if(time == 0){
self.time = 0.1;
}else{
self.time = time;
}
[self setUpSubViews];
}
return self;
}
- (void)setUpSubViews
{
UIView *backView = [[UIView alloc] init];
backView.backgroundColor =BoomViewColor;
backView.layer.cornerRadius = CornerRadius;
backView.layer.masksToBounds = YES;
[self addSubview:backView];
self.backView = backView;
UIView *fontView = [[UIView alloc] init];
fontView.backgroundColor = UpViewColor;
fontView.layer.cornerRadius = CornerRadius;
fontView.layer.masksToBounds = YES;
[self addSubview:fontView];
self.fontView = fontView;
}
-(void)progressViewStart{
if (self.timer == nil) {
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
self.timer = [NSTimer scheduledTimerWithTimeInterval:self.time target:self selector:@selector(changeProgressViewFrame:) userInfo:nil repeats:YES];
[[NSRunLoop mainRunLoop] addTimer:self.timer forMode:NSRunLoopCommonModes];
});
}
}
-(void)changeProgressViewFrame:(NSTimer *)timer{
//位置计算
CGFloat signProgress = (self.signNum - self.startNum) / (self.endNum - self.startNum);
NSLog(@"==>>>%f",self.progress);
if (self.progress >= signProgress){
[self.timer invalidate];
self.timer = nil;
return;
}
self.progress += 0.01;
[self setNeedsLayout];
}
-(void)layoutSubviews{
[super layoutSubviews];
NSLog(@"==>>>%f",self.progress);
self.backView.frame = self.bounds;
self.fontView.frame = self.bounds;
self.fontView.width = self.width * self.progress;
}
PS:可以自己增加 进度条文字等修改大小 样式
别小看任何人，越不起眼的人。往往会做些让人想不到的事。。。
2016年09月26日 未完待续。。。需要Demo留下邮箱。。后续传GitHub
