YYLabel作者相关地址

首先附上yykit的地址

https://github.com/ibireme/YYKit

作者的博客

http://blog.ibireme.com/2015/11/12/smooth_user_interfaces_for_ios/

YYLabel的使用

YYLabel *label = [[YYLabel alloc] initWithFrame:CGRectMake(100 , 110, 100, 100)];

label.text = @"smallTwo";

label.backgroundColor = [UIColor redColor];

// yylabel 的垂直属性 (区别于系统的多个垂直的功能)

YYLabel的垂直属性

label.textVerticalAlignment = YYTextVerticalAlignmentCenter;

/**

Text vertical alignment.

*/

typedef NS_ENUM(NSInteger, YYTextVerticalAlignment) {

YYTextVerticalAlignmentTop =    0, ///< Top alignment.

YYTextVerticalAlignmentCenter = 1, ///< Center alignment.

YYTextVerticalAlignmentBottom = 2, ///< Bottom alignment.

};

YYLabel的富文本属性

iOS 字符属性NSAttributedString描述

系统自带菊花

/**

*  菊花

*/

- (void)activityIndicatorView {

UIActivityIndicatorView *a = [[UIActivityIndicatorView alloc] init];

a.size = CGSizeMake(80, 80);

a.backgroundColor = [UIColor blackColor];

a.center = CGPointMake([UIScreen mainScreen].bounds.size.width/2, [UIScreen mainScreen].bounds.size.height/2);

// 设置圆角

a.layer.cornerRadius = 8;

a.clipsToBounds = YES;

a.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;

[a startAnimating];

// 设置菊花的颜色

a.color = [UIColor redColor];

[self.view addSubview:a];

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3* NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

[a stopAnimating];

});

}

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YYFPSLabel的使用 (检测手机的fps)

主要利用了cadisplaylink,  以下是YYFPSLabel 的代码

.h

////  YYFPSLabel.h//  YYKitExample////  Created by ibireme on 15/9/3.//  Copyright (c) 2015 ibireme. All rights reserved.//#import/**

Show Screen FPS...

The maximum fps in OSX/iOS Simulator is 60.00.

The maximum fps on iPhone is 59.97.

The maxmium fps on iPad is 60.0.

*/

@interface YYFPSLabel : UILabel

@end

.m 

//

//  YYFPSLabel.m

//  YYKitExample

//

//  Created by ibireme on 15/9/3.

//  Copyright (c) 2015 ibireme. All rights reserved.

//

#import "YYFPSLabel.h"

#import "YYKit.h"

#define kSize CGSizeMake(55, 20)

@implementation YYFPSLabel {

CADisplayLink *_link;

NSUInteger _count;

NSTimeInterval _lastTime;

UIFont *_font;

UIFont *_subFont;

NSTimeInterval _llll;

}

- (instancetype)initWithFrame:(CGRect)frame {

if (frame.size.width == 0 && frame.size.height == 0) {

frame.size = kSize;

}

self = [super initWithFrame:frame];

self.layer.cornerRadius = 5;

self.clipsToBounds = YES;

self.textAlignment = NSTextAlignmentCenter;

self.userInteractionEnabled = NO;

self.backgroundColor = [UIColor colorWithWhite:0.000 alpha:0.700];

_font = [UIFont fontWithName:@"Menlo" size:14];

if (_font) {

_subFont = [UIFont fontWithName:@"Menlo" size:4];

} else {

_font = [UIFont fontWithName:@"Courier" size:14];

_subFont = [UIFont fontWithName:@"Courier" size:4];

}

_link = [CADisplayLink displayLinkWithTarget:[YYWeakProxy proxyWithTarget:self] selector:@selector(tick:)];

[_link addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];

return self;

}

- (void)dealloc {

[_link invalidate];

}

- (CGSize)sizeThatFits:(CGSize)size {

return kSize;

}

- (void)tick:(CADisplayLink *)link {

if (_lastTime == 0) {

_lastTime = link.timestamp;

return;

}

_count++;

NSTimeInterval delta = link.timestamp - _lastTime;

if (delta < 1) return;

_lastTime = link.timestamp;

float fps = _count / delta;

_count = 0;

CGFloat progress = fps / 60.0;

UIColor *color = [UIColor colorWithHue:0.27 * (progress - 0.2) saturation:1 brightness:0.9 alpha:1];

NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%d FPS",(int)round(fps)]];

[text setColor:color range:NSMakeRange(0, text.length - 3)];

[text setColor:[UIColor whiteColor] range:NSMakeRange(text.length - 3, 3)];

text.font = _font;

[text setFont:_subFont range:NSMakeRange(text.length - 4, 1)];

self.attributedText = text;

}

@end

简单的使用

/**

*  fps label     

*/

- (void)FPSlabel {

YYFPSLabel *label = [[YYFPSLabel alloc] init];

[label sizeToFit];

label.left = 10;

label.bottom =  SCREEN_HEIGHT - 10;

[self.view addSubview:label];

}

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