//
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// YYFPSLabel.m
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// YYKitExample
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//
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// Created by ibireme on 15/9/3.
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// Copyright (c) 2015 ibireme. All rights reserved.
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//
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#import "YYFPSLabel.h"
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#define kSize CGSizeMake(55, 20)
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@implementation YYFPSLabel {
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CADisplayLink *_link;
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NSUInteger _count;
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NSTimeInterval _lastTime;
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UIFont *_font;
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UIFont *_subFont;
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NSTimeInterval _llll;
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}
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- (instancetype)initWithFrame:(CGRect)frame {
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if (frame.size.width == 0 && frame.size.height == 0) {
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frame.size = kSize;
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}
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self = [super initWithFrame:frame];
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self.layer.cornerRadius = 5;
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self.clipsToBounds = YES;
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self.textAlignment = NSTextAlignmentCenter;
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self.userInteractionEnabled = YES;
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self.backgroundColor = [UIColor colorWithWhite:0.000 alpha:0.700];
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_font = [UIFont fontWithName:@"Menlo" size:14];
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if (_font) {
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_subFont = [UIFont fontWithName:@"Menlo" size:4];
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} else {
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_font = [UIFont fontWithName:@"Courier" size:14];
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_subFont = [UIFont fontWithName:@"Courier" size:4];
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}
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__weak typeof(self) weakSelf = self;
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_link = [CADisplayLink displayLinkWithTarget:weakSelf selector:@selector(tick:)];
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[_link addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
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[self addGestureRecognizer:[[UIPanGestureRecognizer alloc] initWithActionBlock:^(UIPanGestureRecognizer *_Nonnull sender) {
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// 获取手势的移动，也是相对于最开始的位置
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CGPoint transP = [sender translationInView:weakSelf];
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weakSelf.transform = CGAffineTransformTranslate(weakSelf.transform, transP.x, transP.y);
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// 复位
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[sender setTranslation:CGPointZero inView:weakSelf];
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if (sender.state == UIGestureRecognizerStateEnded) {
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[UIView animateWithDuration:0.2 animations:^{
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weakSelf.lmj_x = (weakSelf.lmj_x - kScreenWidth * 0.5) > 0 ? (kScreenWidth - weakSelf.lmj_width - 20) : 20;
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weakSelf.lmj_y = weakSelf.lmj_y > 80 ? weakSelf.lmj_y : 80;
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}];
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}
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}]];
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return self;
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}
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- (void)dealloc {
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[_link invalidate];
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_link = nil;
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}
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- (void)tick:(CADisplayLink *)link {
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if (_lastTime == 0) {
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_lastTime = link.timestamp;
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return;
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}
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_count++;
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NSTimeInterval delta = link.timestamp - _lastTime;
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if (delta < 1) return;
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_lastTime = link.timestamp;
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CGFloat fps = _count / delta;
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_count = 0;
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CGFloat progress = fps / 60.0;
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UIColor *color = [UIColor colorWithHue:0.27 * (progress - 0.2) saturation:1 brightness:0.9 alpha:1];
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NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%zd FPS",(int)round(fps)]];
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[text yy_setColor:color range:NSMakeRange(0, text.length - 3)];
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[text yy_setColor:[UIColor whiteColor] range:NSMakeRange(text.length - 3, 3)];
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text.yy_font = _font;
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[text yy_setFont:_subFont range:NSMakeRange(text.length - 4, 1)];
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self.attributedText = text;
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}
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@end
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