{"id":559,"date":"2014-08-09T23:29:25","date_gmt":"2014-08-09T15:29:25","guid":{"rendered":"http:\/\/www.yusian.com\/blog\/?p=559"},"modified":"2016-07-15T14:47:39","modified_gmt":"2016-07-15T06:47:39","slug":"ios6%e5%88%9b%e5%bb%baios7%e9%a3%8e%e6%a0%bc%e5%af%bc%e8%88%aa%e5%af%bc%ef%bc%8c%e5%af%bc%e8%88%aa%e6%9d%a1%e8%87%aa%e5%8a%a8%e6%b7%bb%e5%8a%a0%e8%bf%94%e5%9b%9e%e6%8c%89%e9%92%ae","status":"publish","type":"post","link":"https:\/\/www.yusian.com\/blog\/project\/2014\/08\/09\/232925559.html","title":{"rendered":"iOS6\u521b\u5efaiOS7\u98ce\u683c\u5bfc\u822a\u5bfc\uff0c\u5bfc\u822a\u6761\u81ea\u52a8\u6dfb\u52a0\u8fd4\u56de\u6309\u94ae"},"content":{"rendered":"<pre lang=\"objc\" line=\"1\">- (void)viewDidLoad\n{\n    [super viewDidLoad];\n\n    if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0) {\n\n        \/\/ 1\u3001\u4fee\u6539\u5bfc\u822a\u6761\u6837\u5f0f\n        UINavigationBar *bar = [UINavigationBar appearance];\n        \/\/ \u4fee\u6539\u5bfc\u822a\u6761\u80cc\u666f\n        [bar setBackgroundImage:[UIImage imageNamed:@\"navigationbar_background.png\"] forBarMetrics:UIBarMetricsDefault];\n        \/\/ \u4fee\u6539\u5bfc\u822a\u6761\u6587\u5b57\u6837\u5f0f\n        [bar setTitleTextAttributes:@{\n                                      UITextAttributeTextColor : [UIColor blackColor],\n                                      UITextAttributeTextShadowOffset : [NSValue valueWithUIOffset:UIOffsetZero]\n                                      }];\n\n\n        \/\/ 2\u3001\u4fee\u6539\u5bfc\u822a\u6761\u6309\u94ae\u6837\u5f0f\n        UIBarButtonItem *item = [UIBarButtonItem appearance];\n\n        UIImage *normal = [UIImage imageNamed:@\"navigationbar_button_background.png\"];\n        UIImage *highlight = [UIImage imageNamed:@\"navigationbar_button_background_pushed.png\"];\n\n        \/\/ \u4fee\u6539\u5bfc\u822a\u6761\u6309\u94ae\u80cc\u666f\n        [item setBackgroundImage:normal forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];\n        [item setBackgroundImage:highlight forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault];\n\n        \/\/ \u4fee\u6539\u5bfc\u822a\u6761\u6309\u94ae\u6587\u5b57\u6837\u5f0f\n        [item setTitleTextAttributes:@{\n                                       UITextAttributeTextColor : kBlueColor,\n                                       UITextAttributeTextShadowOffset : [NSValue valueWithUIOffset:UIOffsetZero],\n                                       } forState:UIControlStateNormal];\n        [item setTitleTextAttributes:@{\n                                       UITextAttributeTextColor : kBlueColor,\n                                       UITextAttributeTextShadowOffset : [NSValue valueWithUIOffset:UIOffsetZero]\n                                       } forState:UIControlStateHighlighted];\n\n        [item setBackButtonBackgroundImage:normal forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];\n        [item setBackButtonBackgroundImage:highlight forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault];\n\n        \/\/ 3\u3001\u4fee\u6539\u72b6\u6001\u680f\u6837\u5f0f\n        [UIApplication sharedApplication].statusBarHidden = NO;\n        [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleBlackOpaque;\n\n    }\n}\n\n#pragma mark - 2\u3001\u4ee3\u7406\u65b9\u6cd5\n#pragma mark 2.1\u3001\u63a7\u5236\u5668\u5c06\u8981\u89c6\u56fe\u663e\u793a\n- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated\n{\n    \/\/ \u5728\u672a\u81ea\u5b9a\u4e49\u5bfc\u822a\u6761\u8fd4\u56de\u952e\u7684\u60c5\u51b5\u4e0b\uff0ciOS6\u53ca\u4ee5\u4e0b\u7248\u672c\u8bbe\u5907\u5bfc\u822a\u6761\u81ea\u52a8\u6dfb\u52a0\u4effiOS7\u8fd4\u56de\u6309\u94ae\uff08\u6839\u63a7\u5236\u5668\u4f8b\u5916\uff09\n    if (!(viewController == navigationController.viewControllers.firstObject || [(RMBaseVCtrl *)viewController isCustomNBI]) &#038;&#038; [viewController isKindOfClass:[RMBaseVCtrl class]]){\n\n        \/\/ \u6808\u63a7\u5236\u5668\u6570\u7ec4\n        NSArray *vcs = navigationController.viewControllers;\n\n        \/\/ \u524d\u4e00\u4e2a\u63a7\u5236\u5668\u5e8f\u53f7\n        int penultimate = (int)vcs.count - 2;\n\n        if (penultimate >= 0) {\n\n            \/\/ \u524d\u4e00\u4e2a\u63a7\u5236\u5668\u6807\u9898\n            NSString *title = [[vcs objectAtIndex:penultimate] title];\n\n            if (title == nil || title.length > 4) title = @\"\u8fd4\u56de\";\n\n            \/\/ \u8fd4\u56de\u6309\u94ae\u6587\u5b57\u4e3a\u524d\u4e00\u4e2a\u63a7\u5236\u5668\u6807\u9898\u3001\u57fa\u672c\u529f\u80fd\u4e3a\u8fd4\u56de\u4e0a\u4e00\u7ea7\u76ee\u5f55\n            viewController.navigationItem.leftBarButtonItem = [UIBarButtonItem barButtonItemWithBackButtonTitle:title addTarget:self action:@selector(barButtonItemBack:)];\n        }\n    }\n}\n\n#pragma mark 2.2\u3001\u63a7\u5236\u5668\u5b8c\u6210\u89c6\u56fe\u663e\u793a\n- (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated\n{\n\/\/    NSLog(@\"def\");\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>&#8211; (void)viewDidLoad { [super viewDidLoad]; if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0) { \/\/ 1\u3001\u4fee\u6539\u5bfc\u822a\u6761\u6837\u5f0f UINavigationBar *bar = [UINavigationBar appearance]; \/\/ \u4fee\u6539\u5bfc\u822a\u6761\u80cc\u666f [bar setBackgroundImage:[UIImage imageNamed:@\"navigationbar_background.png\"] forBarMetrics:UIBarMetricsDefault]; \/\/ \u4fee\u6539\u5bfc\u822a\u6761\u6587\u5b57\u6837\u5f0f [bar setTitleTextAttributes:@{ UITextAttributeTextColor : [UIColor blackColor], UITextAttributeTextShadowOffset : [NSValue valueWithUIOffset:UIOffsetZero] }]; \/\/ 2\u3001\u4fee\u6539\u5bfc\u822a\u6761\u6309\u94ae\u6837\u5f0f UIBarButtonItem *item = [UIBarButtonItem appearance]; UIImage *normal = [UIImage imageNamed:@\"navigationbar_button_background.png\"]; UIImage *highlight = [UIImage [&hellip;]\n<\/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":[17],"class_list":["post-559","post","type-post","status-publish","format-standard","hentry","category-project","tag-skill"],"_links":{"self":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/559","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=559"}],"version-history":[{"count":0,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/559\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/media?parent=559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/categories?post=559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/tags?post=559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}