44 lines
1.6 KiB
Mathematica
44 lines
1.6 KiB
Mathematica
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// UIView+WaterMark.m
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// Localization
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//
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// Created by 明孔 on 2019/10/15.
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// Copyright © 2019 明孔. All rights reserved.
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//
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#import "UIView+WaterMark.h"
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@implementation UIView (WaterMark)
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-(void)addWaterMarkText:(NSString*)waterText WithTextColor:(UIColor*)color WithFont:(UIFont*)font{
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//计算水印文字的宽高
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NSString *waterMark = waterText;
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CGSize textSize = [waterMark sizeWithAttributes:@{NSFontAttributeName:font}];
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CGFloat height = [UIScreen mainScreen].bounds.size.height;
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CGFloat width = [UIScreen mainScreen].bounds.size.width;
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NSInteger line = height * 3 / FIX_SIZE(100); //多少行
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NSInteger row = 20;
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for (int i = 0; i < line; i ++) {
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for (int j = 0; j < row; j ++) {
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CATextLayer *textLayer = [[CATextLayer alloc]init];
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textLayer.contentsScale = [UIScreen mainScreen].scale;//按当前屏幕分辨显示，否则会模糊
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CFStringRef fontName = (__bridge CFStringRef)font.fontName;
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CGFontRef fontRef =CGFontCreateWithFontName(fontName);
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textLayer.font = fontRef;
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textLayer.fontSize = font.pointSize;
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textLayer.foregroundColor = color.CGColor;
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textLayer.string = waterMark;
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textLayer.frame = CGRectMake(-width + j*(textSize.width+30) + i * 30, i*FIX_SIZE(100), textSize.width, textSize.height);
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//旋转文字
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textLayer.transform = CATransform3DMakeRotation(-M_PI/15, 0,0,3);
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[self.layer addSublayer:textLayer];
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}
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}
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}
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@end
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