iOS 自定义进度条

经常会遇到需要自定义进度条的需要，那么使用以下的小demo可以实现
.m文件
#import “GGProgressView.h”
@interface GGProgressView()
{
UIView *_progressView;
float _progress;
float _width;
float _heigth;
}

@end

@implementation GGProgressView

-(instancetype)initWithFrame:(CGRect)frame
{
return [self initWithFrame:frame progressViewStyle:GGProgressViewStyleDefault];
}

• (instancetype)initWithFrame:(CGRect)frame progressViewStyle:(GGProgressViewStyle)style
  {
  if (self=[super initWithFrame:frame]) {
  _progressView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 0, frame.size.height)];
  _progress=0;
  self.progressViewStyle=style;
  [self addSubview:_progressView];
  }
  return self;
  }
  -(void)setProgressViewStyle:(GGProgressViewStyle)progressViewStyle
  {
  _progressViewStyle=progressViewStyle;
  if (progressViewStyleGGProgressViewStyleTrackFillet) {
  self.layer.masksToBounds=YES;
  self.layer.cornerRadius=self.bounds.size.height/2;
  }
  else if (progressViewStyleGGProgressViewStyleAllFillet)
  {
  self.layer.masksToBounds=YES;
  self.layer.cornerRadius=self.bounds.size.height/2;
  _progressView.layer.cornerRadius=self.bounds.size.height/2;
  }
  }

-(void)setTrackTintColor:(UIColor *)trackTintColor
{
_trackTintColor=trackTintColor;
if (self.trackImage) {

}
else
{
    self.backgroundColor=trackTintColor;
}

}
-(void)setProgress:(float)progress
{

NSLog(@"progressprogress %lf %lf %lf %lf",progress,_width,_heigth,self.bounds.size.width );

_progress=MIN(progress, 1);
_progressView.frame=CGRectMake(0, 0, self.bounds.size.width*_progress, self.bounds.size.height);

}
-(float)progress
{
return _progress;
}

-(void)setProgressViewStyle:(GGProgressViewStyle)style Frame:(CGRect)frame{

_progressView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 0, frame.size.height)];
_progress=0;
self.progressViewStyle=style;
[self addSubview:_progressView];

}

-(void)setHeigth:(float)heigth
{

_heigth = heigth;

}
-(float)heigth
{
return _heigth;
}

-(void)setWidth:(float)width
{
_width= width;
}
-(float)width
{
return _width;
}

-(void)setProgressTintColor:(UIColor *)progressTintColor
{
_progressTintColor=progressTintColor;
_progressView.backgroundColor=progressTintColor;
}
-(void)setTrackImage:(UIImage *)trackImage
{
_trackImage=trackImage;
if(self.isTile)
{
self.backgroundColor=[UIColor colorWithPatternImage:trackImage];
}
else
{
self.backgroundColor=[UIColor colorWithPatternImage:[self stretchableWithImage:trackImage]];
}
}
-(void)setIsTile:(BOOL)isTile
{
_isTile = isTile;
if (self.progressImage) {
[self setProgressImage:self.progressImage];
}
if (self.trackImage) {
[self setTrackImage:self.trackImage];
}
}
-(void)setProgressImage:(UIImage *)progressImage
{
_progressImage = progressImage;
if(self.isTile)
{
_progressView.backgroundColor=[UIColor colorWithPatternImage:progressImage];
}
else
{
_progressView.backgroundColor=[UIColor colorWithPatternImage:[self stretchableWithImage:progressImage]];
}
}

• (UIImage )stretchableWithImage:(UIImage )image{
  UIGraphicsBeginImageContextWithOptions(self.frame.size, NO, 0.f);
  [image drawInRect:self.bounds];
  UIImage lastImage = UIGraphicsGetImageFromCurrentImageContext();
  UIGraphicsEndImageContext();
  return lastImage;
  }
  @end
  //*********************************
  .h文件
  #import <UIKit/UIKit.h>

typedef NS_ENUM(NSInteger, GGProgressViewStyle) {
GGProgressViewStyleDefault, // 默认
GGProgressViewStyleTrackFillet , // 轨道圆角(默认半圆)
GGProgressViewStyleAllFillet, //进度与轨道都圆角
};

@interface GGProgressView : UIView

@property(nonatomic) float progress; // 0.0 … 1.0, 默认0 超出为1.
@property(nonatomic) GGProgressViewStyle progressViewStyle;
@property(nonatomic,assign) BOOL isTile; //背景图片是平铺填充 默认NO拉伸填充 设置为YES时图片复制平铺填充
@property(nonatomic, strong, nullable) UIColor* progressTintColor;
@property(nonatomic, strong, nullable) UIColor* trackTintColor;
@property(nonatomic, strong, nullable) UIImage* progressImage; //进度条背景图片,默认拉伸填充 优先级大于背景色
@property(nonatomic, strong, nullable) UIImage* trackImage; //轨道填充图片
@property(nonatomic) float heigth;
@property(nonatomic) float width;

• (instancetype)initWithFrame:(CGRect)frame;
• (instancetype)initWithFrame:(CGRect)frame progressViewStyle:(GGProgressViewStyle)style;
  -(void)setProgressViewStyle:(GGProgressViewStyle)style Frame:(CGRect)frame;

@end

引用：

//这个方法是基于使用Xib创建的情况下

@property (weak, nonatomic) IBOutlet GGProgressView *pushProgress;

[_pushProgress setProgressViewStyle:GGProgressViewStyleTrackFillet Frame:CGRectMake(0, 0, 74, 24)];
_pushProgress.progressTintColor= UIColorMakeWithHex(@"#FF514E") ;
_pushProgress.trackTintColor= UIColorMakeWithHex(@"#FFE0DF") ;;
_pushProgress.heigth = 24;
_pushProgress.width = 74;
_pushProgress.progress=0.5;
_pushProgress.clipsToBounds = YES;
_pushProgress.layer.cornerRadius = 12;

如果用代码创建的话就用

• (instancetype)initWithFrame:(CGRect)frame;
• (instancetype)initWithFrame:(CGRect)frame progressViewStyle:(GGProgressViewStyle)style;
  其中之一进行init