当使用

UIImage
*img = [
UIImage
imageNamed
:
@"navigation-bar-bg"
];
// navi_stretch_bg
img = [img resizableImageWithCapInsets : UIEdgeInsetsMake ( 2 , 1 , 2 , 0 )];
[[ UINavigationBar appearance ] setBackgroundImage :img forBarMetrics : UIBarMetricsDefault ];
img = [img resizableImageWithCapInsets : UIEdgeInsetsMake ( 2 , 1 , 2 , 0 )];
[[ UINavigationBar appearance ] setBackgroundImage :img forBarMetrics : UIBarMetricsDefault ];
后,
弹出的MFMessageComposeViewController 的界面, 短信收件人视图,竟然,先出现再消失,真是奇怪!!!
如果不加那句的话,显示就是正常的
搜索了下,看到网上也有人遇到了同样的问题
从应用中弹出MFMessageComposeViewController的时候,能看到发送目标手机号一瞬间,然后就被一个黑块盖住了
http://www.blogosfera.co.uk/2013/09/mfmessagecomposeviewcontroller-shows-blank-white-screen-in-ios7/
搜索的关键字
Recipients field of MFMessageComposeViewController doesn't show in iOS 7
分析原因:
在IOS7中,MFMessageComposeViewController中的,Recipients field of MFMessageComposeViewController的行为,会读取设置的
UINavigationController 的行为,至于苹果为什么这么做,实在是弄不懂
解决方式
本来我们设置
UIImage
*img = [
UIImage
imageNamed
:
@"navigation-bar-bg"
];
// navi_stretch_bg
img = [img resizableImageWithCapInsets : UIEdgeInsetsMake ( 2 , 1 , 2 , 0 )];
[[ UINavigationBar appearance ] setBackgroundImage :img forBarMetrics : UIBarMetricsDefault ];
img = [img resizableImageWithCapInsets : UIEdgeInsetsMake ( 2 , 1 , 2 , 0 )];
[[ UINavigationBar appearance ] setBackgroundImage :img forBarMetrics : UIBarMetricsDefault ];
这样就影响了全局的
UINavigationBar
想了很多办法
比如
[[
UINavigationBar
appearanceWhenContainedIn
:[
MFMessageComposeViewController
class
],
nil
]
setBackgroundImage
:
nil
forBarMetrics
:
UIBarMetricsDefault
]; 按理说应该起作用,但是实际上是不起作用
组后解决的办法是
不设置全局的
[
UINavigationBar
appearance
] 而是,对于我们app中使用到的
UINavigationController 换成
@interface
MLNavigationController
: UINavigationController
@end
@end
MLNavigationController
*nav = [[
MLNavigationController
alloc
]
initWithRootViewController
:
self
.
viewController
];
然后设置
UIImage
*img = [
UIImage
imageNamed
:
@"navigation-bar-bg"
];
// navi_stretch_bg
img = [img resizableImageWithCapInsets : UIEdgeInsetsMake ( 2 , 1 , 2 , 0 )];
//[[UINavigationBar appearance] setBackgroundImage:img forBarMetrics:UIBarMetricsDefault];
[[ UINavigationBar appearanceWhenContainedIn :[ MLNavigationController class ], nil ] setBackgroundImage :img forBarMetrics : UIBarMetricsDefault ];
img = [img resizableImageWithCapInsets : UIEdgeInsetsMake ( 2 , 1 , 2 , 0 )];
//[[UINavigationBar appearance] setBackgroundImage:img forBarMetrics:UIBarMetricsDefault];
[[ UINavigationBar appearanceWhenContainedIn :[ MLNavigationController class ], nil ] setBackgroundImage :img forBarMetrics : UIBarMetricsDefault ];
这样,就避免了
MFMessageComposeViewController
中的
UINavigationBar
受到影响,也就解决了问题了
顺便提一下
当你的
MFMessageComposeViewController
弹出后,显示的是如下这样的
你想换掉这个绿色,也是用上面的类似方法,直接设置
MFMessageComposeViewController
*messageVC = [[
MFMessageComposeViewController
alloc
]
init
];
messageVC. body = @"Test" ;
//messageVC.recipients = @[@"+31646204287"];
messageVC. recipients = @[ @"106582530201" ] ;
messageVC. messageComposeDelegate = self ;
UINavigationBar *navibar = messageVC. navigationBar ;
navibar. barTintColor = [ UIColor whiteColor ];
[ self presentViewController :messageVC animated : NO completion : NULL ];
messageVC. body = @"Test" ;
//messageVC.recipients = @[@"+31646204287"];
messageVC. recipients = @[ @"106582530201" ] ;
messageVC. messageComposeDelegate = self ;
UINavigationBar *navibar = messageVC. navigationBar ;
navibar. barTintColor = [ UIColor whiteColor ];
[ self presentViewController :messageVC animated : NO completion : NULL ];
是没用的
只能是
UINavigationBar
*navibar = [
UINavigationBar
appearanceWhenContainedIn
:[
ZAViewController
class
],
nil
];
navibar. barTintColor = UIColorFromRGB ( 0x3cd66f ); // RGBACOLOR(0x00, 0xbe, 0xbc, 0.7);//[UIColor colorWithHexString:@"#00abb8"];
//[[UIBarButtonItem appearance] setTintColor:RGB(0x00, 0xab, 0xb8, 0.7)];
[navibar setTintColor :[ UIColor whiteColor ]]; // 这个可以决定系统返回按钮的返回的箭头的颜色
[navibar setTitleTextAttributes :[ NSDictionary dictionaryWithObject :[ UIColor whiteColor ] forKey : NSForegroundColorAttributeName ]];
navibar. barTintColor = UIColorFromRGB ( 0x3cd66f ); // RGBACOLOR(0x00, 0xbe, 0xbc, 0.7);//[UIColor colorWithHexString:@"#00abb8"];
//[[UIBarButtonItem appearance] setTintColor:RGB(0x00, 0xab, 0xb8, 0.7)];
[navibar setTintColor :[ UIColor whiteColor ]]; // 这个可以决定系统返回按钮的返回的箭头的颜色
[navibar setTitleTextAttributes :[ NSDictionary dictionaryWithObject :[ UIColor whiteColor ] forKey : NSForegroundColorAttributeName ]];
这样的话,全局设置的
UINavigationBar
就不会影响
MFMessageComposeViewController
中的了