{"id":484,"date":"2016-03-18T01:42:58","date_gmt":"2016-03-17T17:42:58","guid":{"rendered":"http:\/\/www.olinone.com\/?p=484"},"modified":"2016-03-18T01:45:34","modified_gmt":"2016-03-17T17:45:34","slug":"ios%e5%9b%be%e7%89%87%e5%9c%86%e8%a7%92%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"http:\/\/www.olinone.com\/?p=484","title":{"rendered":"iOS\u56fe\u7247\u5706\u89d2\u4f18\u5316"},"content":{"rendered":"<p><em>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904:<a href=\"http:\/\/www.olinone.com\/\">http:\/\/www.olinone.com\/<\/a><\/em><\/p>\n<p>Hi\uff0c\u53c8\u5230\u4e86\u66f4\u65b0\u535a\u5ba2\u7684\u65f6\u95f4\uff0c\u5f88\u9ad8\u5174\u518d\u6b21\u4e0e\u5927\u5bb6\u89c1\u9762\u3002\u6700\u8fd1\uff0c\u5173\u4e8e\u56fe\u7247\u5706\u89d2\u7684\u8bdd\u9898\u8ba8\u8bba\u975e\u5e38\u6fc0\u70c8\uff0c\u51fa\u73b0\u4e86\u8bb8\u591a\u597d\u7684\u6587\u7ae0\u3002\u6070\u9022\u5de5\u4f5c\u9700\u8981\uff0c\u7528\u5230\u4e86\u5927\u91cf\u5706\u89d2\u56fe\u7247\u3002\u7136\u800c\uff0c\u7cfb\u7edf\u5706\u89d2\u4f1a\u5bfc\u81f4\u79bb\u5c4f\u6e32\u67d3\u7684\u95ee\u9898\uff0c\u51fa\u4e8e\u6027\u80fd\u8003\u8651\uff0c\u4e8e\u662f\u6709\u4e86\u56fe\u7247\u5706\u89d2\u6e32\u67d3\u5de5\u5177<a href=\"https:\/\/github.com\/panghaijiao\/HJCornerRadius\">HJCornerRadius<\/a>\uff0c\u5176\u6700\u5927\u4f18\u52bf\u5728\u4e8e\u4f7f\u7528\u7b80\u5355\uff0c\u4e00\u884c\u641e\u5b9a\u56fe\u7247\u5706\u89d2<\/p>\n<pre class=\"lang:objc highlight:0 decode:true \">imageview.aliCornerRadius = 5.0f;<\/pre>\n<p>\u6838\u5fc3\u601d\u60f3\u5c31\u662f\u4f7f\u7528\u5706\u89d2\u56fe\u7247\u66ff\u6362\u7cfb\u7edf\u5706\u89d2\u3002\u5b9e\u9645\u4f7f\u7528\u65f6\uff0c\u786e\u4fddlayer\u5bf9\u8c61\u7684masksToBounds\u5c5e\u6027\u4e3aNO<\/p>\n<pre class=\"lang:objc highlight:0 decode:true\">imageview.layer.masksToBounds = NO<\/pre>\n<p>\u652f\u6301pod\u65b9\u5f0f\u5b89\u88c5\uff0c\u5982\u679c\u4f60\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\u9047\u5230\u4ec0\u4e48\u95ee\u9898\uff0c\u6b22\u8fce\u5728\u6587\u7ae0\u540e\u9762\u8ddf\u6211\u7559\u8a00<\/p>\n<pre class=\"lang:objc highlight:0 decode:true\">pod 'HJCornerRadius', :git =&gt; \"https:\/\/github.com\/panghaijiao\/HJCornerRadius.git\"<\/pre>\n<p>\u5f53\u7136\uff0c\u672c\u6587\u7684\u76ee\u7684\u4e0d\u662f\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8be5\u5de5\u5177\uff0c\u800c\u662f\u60f3\u8ddf\u5927\u5bb6\u5206\u4eab\u5f00\u53d1\u65f6\u7528\u5230\u7684\u51e0\u70b9\u8bbe\u8ba1\u601d\u60f3<\/p>\n<h2>\u81ea\u89c2\u5bdf\u7684\u5de7\u5999\u5e94\u7528<\/h2>\n<p>\u65e2\u7136\u8981\u751f\u6210\u5706\u89d2\u56fe\u7247\uff0c\u9996\u5148\u8981\u89e3\u51b3\u751f\u6210\u65f6\u673a\u95ee\u9898\u3002\u53ef\u80fd\u4f1a\u6709\u670b\u53cb\u60f3\u5230swizzle\u7c7bUIImageView\u7684setImage\u65b9\u6cd5\uff0c\u4f46\u6211\u4e2a\u4eba\u5e76\u4e0d\u63a8\u8350\uff0c\u6bd5\u7adfSwizzle\u7c7b\u65b9\u6cd5\u5f71\u54cd\u8303\u56f4\u592a\u5e7f\uff0c\u5bf9\u4e8e\u5927\u578b\u5f00\u53d1\u56e2\u961f\uff0c\u51fa\u95ee\u9898\u540e\u5f88\u96be\u6392\u67e5\u5b9a\u4f4d\u95ee\u9898\u6240\u5728\u3002\u5b9a\u4e49UIImageView\u5b50\u7c7b\uff1f\u5b9e\u7528\u6027\u4e0d\u5f3a\uff01<\/p>\n<p>\u8fd8\u8bb0\u5f97\u6211\u5728\u6587\u7ae0\u300a<a href=\"http:\/\/www.olinone.com\/?p=232\">\u201c\u81ea\u91ca\u653e\u201d\u5728iOS\u5f00\u53d1\u4e2d\u7684\u5e94\u7528<\/a>\u300b \u4e2d\u63d0\u5230\u7684\u5b9e\u73b0\u81ea\u91ca\u653e\u7684\u4e09\u79cd\u65b9\u5f0f\u5417\uff1f\u5176\u4e2d\u4e00\u79cd\u65b9\u5f0f\u5c31\u662f\u52a8\u6001\u5c5e\u6027\u89c2\u5bdf\u8005\u2014\u2014\u901a\u8fc7\u521b\u5efa\u4e00\u4e2a\u52a8\u6001\u5c5e\u6027KVO\u88ab\u89c2\u5bdf\u5bf9\u8c61\u7684\u67d0\u4e00\u5c5e\u6027\uff0c\u4ece\u800c\u8fbe\u5230\u81ea\u76d1\u63a7\u7684\u76ee\u7684\u3002<\/p>\n<p>\u901a\u8fc7\u521b\u5efa\u52a8\u6001\u5c5e\u6027\u89c2\u5bdf\u8005HJImageObserver\uff0c\u76d1\u542cUIImageView\u7684image\u5c5e\u6027\uff0c\u5f53image\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u80fd\u591f\u7acb\u5373\u89e6\u53d1\u5706\u89d2\u56fe\u7247\u7684\u751f\u6210\uff0c\u4ece\u800c\u8fbe\u5230\u81ea\u52a8\u5b9e\u73b0\u5706\u89d2\u56fe\u7247\u66ff\u6362\u7684\u76ee\u7684\uff0c\u5177\u4f53\u5b9e\u73b0\u53ef\u4ee5\u53c2\u8003\u6e90\u7801\u00a0<a href=\"https:\/\/github.com\/panghaijiao\/HJCornerRadius\">HJCornerRadius<\/a><\/p>\n<h2>RunLoop\u7684\u9002\u5f53\u5207\u6362<\/h2>\n<p>\u7ec6\u5fc3\u7684\u670b\u53cb\u53ef\u80fd\u6ce8\u610f\u5230\uff0c\u672c\u5de5\u5177\u5e76\u4e0d\u662f\u76f4\u63a5\u6e32\u67d3\u539f\u59cbImage\u5bf9\u8c61\uff0c\u800c\u662f\u5148\u622a\u53d6UIImageView\u89c6\u56feLayer\u751f\u6210\u7684Image\uff0c\u7136\u540e\u518d\u505a\u6e32\u67d3\u3002\u539f\u56e0\u5f88\u7b80\u5355\uff0c\u56e0\u4e3aUIImageView\u5448\u73b0\u65b9\u5f0f\u6d89\u53ca\u591a\u79cdContentMode\uff0c\u901a\u8fc7\u6e32\u67d3UIImageView\u89c6\u56feLayer\u751f\u6210\u7684\u56fe\u7247\u53ef\u4ee5\u5de7\u5999\u7684\u89e3\u51b3UIImageView\u663e\u793a\u6a21\u5f0f\u7684\u95ee\u9898<\/p>\n<p>\u6b64\u5916\uff0c\u7531\u4e8e\u7cfb\u7edf\u539f\u56e0\uff0c\u5bf9\u4e8e\u50cfUITableViewCell\u7684UIImageView\uff0c\u7b2c\u4e00\u6b21\u521b\u5efa\u8d4b\u56fe\u65f6\uff0c\u53ef\u80fd\u65e0\u6cd5\u83b7\u53d6UIImageView\u89c6\u56feLayer\u7684\u56fe\u7247\uff0c\u6b64\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u5207\u6362\u5f02\u6b65RunLoop\u8fbe\u5230\u5ef6\u65f6\u6e32\u67d3\u7684\u76ee\u7684<\/p>\n<p>\u4f17\u6240\u5468\u77e5\uff0c\u622a\u56fe\u6e32\u67d3\u7684\u903b\u8f91\u662f\u53ef\u4ee5\u8fd0\u884c\u5728\u5de5\u4f5c\u7ebf\u7a0b\uff0c\u4f46\u662f\u672c\u5de5\u5177\u5e76\u6ca1\u6709\u628a\u5b83\u4eec\u653e\u5728\u5de5\u4f5c\u7ebf\u7a0b\u6267\u884c\uff0c\u56e0\u4e3a\u653e\u5728\u5de5\u4f5c\u7ebf\u7a0b\u4f1a\u6709\u5ef6\u8fdf\uff0c\u4ece\u800c\u5bfc\u81f4\u56fe\u7247\u95ea\u70c1\u7684\u73b0\u8c61<\/p>\n<p>\u5177\u4f53\u622a\u56fe\u6e32\u67d3\u4ee3\u7801\u5982\u4e0b<\/p>\n<pre class=\"lang:objc highlight:0 decode:true \">UIGraphicsBeginImageContextWithOptions(self.originImageView.bounds.size, NO, [UIScreen mainScreen].scale);\r\n    CGContextRef currnetContext = UIGraphicsGetCurrentContext();\r\n    CGContextAddPath(currnetContext, [UIBezierPath bezierPathWithRoundedRect:self.originImageView.bounds cornerRadius:self.cornerRadius].CGPath);\r\n    CGContextClip(currnetContext);\r\n    [self.originImageView.layer renderInContext:currnetContext];\r\n    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();\r\n    UIGraphicsEndImageContext();\r\n    \r\n    if ([image isKindOfClass:[UIImage class]]) {\r\n        image.aliCornerRadius = YES;\r\n        self.originImageView.image = image;\r\n    } else {\r\n        dispatch_async(dispatch_get_main_queue(), ^{\r\n            [self updateImageView];\r\n        });\r\n    }<\/pre>\n<p>\u7ecf\u8fc7\u5b9e\u9645\u6d4b\u8bd5\u9a8c\u8bc1\uff0c\u6548\u679c\u8fd8\u662f\u6bd4\u8f83\u7406\u60f3\u7684\uff0c\u5373\u4f7f\u9700\u8981\u663e\u793a\u5927\u91cf\u5706\u89d2\u56fe\u7247\uff0c\u663e\u793a\u5e27\u6570\u4e5f\u53ef\u4ee5\u7a33\u5b9a\u572850\u5e27\u4ee5\u4e0a\u3002CPU\u6d88\u8017\u5f71\u54cd\u8f83\u5c0f\uff0c\u4ee5iPhone6\u6d4b\u8bd5\u663e\u793a\uff0cCPU\u5b9e\u9645\u6d88\u8017\u4e0a\u6da8\u4e0d\u4f1a\u8d85\u8fc75%\uff0c\u5c5e\u4e8e\u5408\u7406\u8303\u56f4\u4e4b\u5185<\/p>\n<hr \/>\n<p>\u81ea\u4ece\u53d1\u8868\u535a\u5ba2\u300a<a href=\"http:\/\/www.olinone.com\/?p=470\">\u751f\u547d\u4e0d\u606f\uff0c\u6298\u817e\u4e0d\u6b62\u2014\u2014\u81f4\u656c\u901d\u53bb\u76842015<\/a>\u300b\u540e\uff0c\u6536\u5230\u4e86\u8bb8\u591a\u670b\u53cb\u7684\u5173\u6ce8\u548c\u95ee\u5019\uff0c\u5728\u6b64\u8c22\u8c22\u5927\u5bb6\u7684\u795d\u798f\u3002\u65b0\u7684\u4e00\u5e74\u91cc\uff0c\u5e0c\u671b\u5404\u4f4d\u4e00\u5982\u65e2\u5f80\u652f\u6301\u5c0f\u751f\uff0c\u591a\u591a\u4e3a\u6211<a href=\"https:\/\/github.com\/panghaijiao\/HJCornerRadius\">\u70b9\u8d5e<\/a>\uff0c\u672c\u4eba\u4e5f\u4f1a\u66f4\u52a0\u52aa\u529b\uff0c\u4e89\u53d6\u4e3a\u5927\u5bb6\u5949\u732e\u66f4\u591a\u66f4\u597d\u7684\u4e1c\u897f\u3002\u4f60\u53ef\u4ee5follow\u672c\u4eba\u7684<a href=\"https:\/\/github.com\/panghaijiao\">Github<\/a>\uff0c\u4e5f\u53ef\u4ee5\u5173\u6ce8\u6211\u7684<a href=\"http:\/\/weibo.com\/u\/5474633407\">\u4e2a\u4eba\u5fae\u535a<\/a>\uff0c\u518d\u6b21\u611f\u8c22\u4f60\u7684\u6765\u8bbf<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904:http:\/\/www.olinone.com\/ Hi\uff0c\u53c8\u5230\u4e86\u66f4\u65b0\u535a\u5ba2\u7684\u65f6\u95f4\uff0c\u5f88\u9ad8\u5174\u518d\u6b21\u4e0e\u5927\u5bb6\u89c1\u2026 <span class=\"read-more\"><a href=\"http:\/\/www.olinone.com\/?p=484\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[],"_links":{"self":[{"href":"http:\/\/www.olinone.com\/index.php?rest_route=\/wp\/v2\/posts\/484"}],"collection":[{"href":"http:\/\/www.olinone.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.olinone.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.olinone.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.olinone.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=484"}],"version-history":[{"count":19,"href":"http:\/\/www.olinone.com\/index.php?rest_route=\/wp\/v2\/posts\/484\/revisions"}],"predecessor-version":[{"id":503,"href":"http:\/\/www.olinone.com\/index.php?rest_route=\/wp\/v2\/posts\/484\/revisions\/503"}],"wp:attachment":[{"href":"http:\/\/www.olinone.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.olinone.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=484"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.olinone.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}