{"id":425,"date":"2014-12-01T10:24:33","date_gmt":"2014-12-01T02:24:33","guid":{"rendered":"http:\/\/www.yusian.com\/blog\/?p=425"},"modified":"2016-07-14T22:48:43","modified_gmt":"2016-07-14T14:48:43","slug":"quartz-2d%e7%9a%84%e5%9f%ba%e6%9c%ac%e4%bd%bf%e7%94%a8%ef%bc%88%e7%ac%ac%e4%b8%80%e8%ae%b2%ef%bc%9a%e7%94%bb%e7%9b%b4%e7%ba%bf%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.yusian.com\/blog\/project\/2014\/12\/01\/102433425.html","title":{"rendered":"Quartz 2D\u7684\u57fa\u672c\u4f7f\u7528\uff08\u7b2c\u4e00\u8bb2\uff1a\u753b\u76f4\u7ebf\uff09"},"content":{"rendered":"<p><strong>\u4e00\u3001Quartz 2D\u7684\u57fa\u672c\u4f7f\u7528\u5206\u4e3a\u4e09\u4e2a\u6b65\u9aa4<\/strong><\/p>\n<p>1\u3001\u83b7\u53d6\u4e0a\u4e0b\u6587\uff1a\u7c7b\u4f3c\u5f00\u542f\u4e00\u4e2a\u7ed8\u56fe\u677f<br \/>\n2\u3001\u7ed8\u5236\u56fe\u5f62\uff1a\u901a\u8fc7\u4e00\u4e9bCGContext\u7684\u63cf\u8ff0\u544a\u8bc9\u7ed8\u56fe\u677f\u63a5\u4e0b\u6765\u5c06\u8981\u7ed8\u5236\u4ec0\u4e48\u6837\u7684\u56fe\u5f62<br \/>\n3\u3001\u6e32\u67d3\u56fe\u5f62\uff1a\u5c06\u63cf\u8ff0\u597d\u7684\u56fe\u5f62\u6e32\u67d3\u5230\u5f53\u524d\u7684\u89c6\u56fe\uff0cview\u7684layer\u56fe\u5c42\u4e0a\u3002<\/p>\n<p><strong>\u4e8c\u3001\u4ee3\u7801\u793a\u4f8b<\/strong><\/p>\n<p>1\u3001Quartz 2D\u56fe\u5f62\u7684\u7ed8\u5236\u4e00\u5b9a\u8981\u5728drawRect:\u65b9\u6cd5\u4e2d\u5b9e\u73b0<br \/>\n2\u3001\u793a\u4f8b\u4ee3\u7801<\/p>\n<pre lang=\"objc\" line=\"1\">\/\/\n\/\/  SAView.m\n\/\/  Quartz2D\n\/\/\n\/\/  Created by \u4f59\u897f\u5b89 on 14\/12\/1.\n\/\/  Copyright (c) 2014\u5e74 Sian. All rights reserved.\n\/\/\n\n#import \"SAView.h\"\n\n@implementation SAView\n\n-(void)drawRect:(CGRect)rect\n{\n    \/\/ 1\u3001\u83b7\u53d6\u4e0a\u4e0b\u6587(\u5f00\u542f\u5f53\u524d\u7ed8\u56fe\u677f)\n    CGContextRef ctx = UIGraphicsGetCurrentContext();\n    \n    \/\/ 2\u3001\u7ed8\u5236\u56fe\u5f62\n    \/\/ \u5c06\u201c\u753b\u7b14\u201d\u79fb\u52a8\u5230\u70b9(100, 100)\n    CGContextMoveToPoint(ctx, 100, 100);\n    \/\/ (\u4ece\u5f53\u524d\u70b9\u5f00\u59cb)\u6dfb\u52a0\u7ebf\u6bb5\u5230(100, 100)\n    CGContextAddLineToPoint(ctx, 200, 200);\n    \n    \/\/ 3\u3001\u6e32\u67d3\u56fe\u50cf\u5230\u5f53\u524dView\n    CGContextStrokePath(ctx);\n}\n\n@end<\/pre>\n<p><!--more--><br \/>\n<strong>\u4e09\u3001\u8fd0\u884c\u6548\u679c<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.yusian.com\/blog\/wp-content\/uploads\/2016\/07\/iOS-\u6a21\u62df\u5668\u5c4f\u5e55\u5feb\u7167\u201c2014\u5e7412\u67081\u65e5-\u4e0a\u534810.22.54\u201d.png\" alt=\"iOS \u6a21\u62df\u5668\u5c4f\u5e55\u5feb\u7167\u201c2014\u5e7412\u67081\u65e5 \u4e0a\u534810.22.54\u201d\" width=\"320\" height=\"480\" class=\"alignnone size-full wp-image-426\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001Quartz 2D\u7684\u57fa\u672c\u4f7f\u7528\u5206\u4e3a\u4e09\u4e2a\u6b65\u9aa4 1\u3001\u83b7\u53d6\u4e0a\u4e0b\u6587\uff1a\u7c7b\u4f3c\u5f00\u542f\u4e00\u4e2a\u7ed8\u56fe\u677f 2\u3001\u7ed8\u5236\u56fe\u5f62\uff1a\u901a\u8fc7\u4e00\u4e9bCGContext\u7684\u63cf\u8ff0\u544a\u8bc9\u7ed8\u56fe\u677f\u63a5\u4e0b\u6765\u5c06\u8981\u7ed8\u5236\u4ec0\u4e48\u6837\u7684\u56fe\u5f62 3\u3001\u6e32\u67d3\u56fe\u5f62\uff1a\u5c06\u63cf\u8ff0\u597d\u7684\u56fe\u5f62\u6e32\u67d3\u5230\u5f53\u524d\u7684\u89c6\u56fe\uff0cview\u7684layer\u56fe\u5c42\u4e0a\u3002 \u4e8c\u3001\u4ee3\u7801\u793a\u4f8b 1\u3001Quartz 2D\u56fe\u5f62\u7684\u7ed8\u5236\u4e00\u5b9a\u8981\u5728drawRect:\u65b9\u6cd5\u4e2d\u5b9e\u73b0 2\u3001\u793a\u4f8b\u4ee3\u7801 \/\/ \/\/ SAView.m \/\/ Quartz2D \/\/ \/\/ Created by \u4f59\u897f\u5b89 on 14\/12\/1. \/\/ Copyright (c) 2014\u5e74 Sian. All rights reserved. \/\/ #import &#8220;SAView.h&#8221; @implementation SAView -(void)drawRect:(CGRect)rect { \/\/ 1\u3001\u83b7\u53d6\u4e0a\u4e0b\u6587(\u5f00\u542f\u5f53\u524d\u7ed8\u56fe\u677f) CGContextRef ctx = UIGraphicsGetCurrentContext(); \/\/ 2\u3001\u7ed8\u5236\u56fe\u5f62 \/\/ \u5c06\u201c\u753b\u7b14\u201d\u79fb\u52a8\u5230\u70b9(100, 100) CGContextMoveToPoint(ctx, 100, 100); \/\/ (\u4ece\u5f53\u524d\u70b9\u5f00\u59cb)\u6dfb\u52a0\u7ebf\u6bb5\u5230(100, 100) CGContextAddLineToPoint(ctx, 200, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[16],"class_list":["post-425","post","type-post","status-publish","format-standard","hentry","category-project","tag-quartz2d"],"_links":{"self":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/425","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/comments?post=425"}],"version-history":[{"count":0,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/425\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/media?parent=425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/categories?post=425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/tags?post=425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}