iOS7 相关资料整理
一、更改self.title中字体颜色及大小
解释：self.title为显示navigationController中间的标题文字.iOS5默认为白色，iOS7以后，默认为黑色。且没有直接修改的api
思路：获得当前navigationItem.titleView,强制转换为UILabel，然后做相应的颜色。
二、更改self.title中字体颜色及大小
原文链接:http://www.raywenderlich.com/49316/how-to-update-your-app-for-ios-7
from:http://www.raywenderlich.com
这是一个非常好的学习、更新、了解iOS的网站，希望对大家在iOS开发过程中有所帮助！
三、iOS7 UIStatusBar 字体颜色设置
iOS7后，字体颜色默认只有白黑两种，可以自定义window的方式，不过比较麻烦，先不介绍。
此处以设置为白颜色为例。
a、直接在xxx-info.plist来设置
- info.plist中添加View controller-based status bar appearance，设置为NO
- info.plist中添加Status bar style，设置为Transparent black style (alpha of 0.5)
b、xxx-info.plist结合代码
- info.plist中添加View controller-based status bar appearance，设置为NO
- 在.m文件中加[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
- 或者在.m文件中加以下代码
//- (BOOL)prefersStatusBarHidden {
// return NO;
//}
//
//- (UIStatusBarStyle)preferredStatusBarStyle {
// return UIStatusBarStyleLightContent;
//}
四、 iOS7 tintColor for navigationBar
// for iOS7.0+
float systemVersion = [[[UIDevice currentDevice] systemVersion] floatValue];
if (systemVersion >= 7.0)
{
[self.navigationController.navigationBar setTintColor:[UIColor whiteColor]];
}
最近在把一个iOS5.0的老项目升级到iOS7.1,发现在iOS6.0的时候，就有一些函数和枚举值被废弃。
那么在做版本兼容的时候，我们可以使用respondsToSelector这个函数，具体怎么使用就不多说了。
iOS6.0以下版本的函数、枚举（红色表示iOS6.0以上可用）
- (void)presentModalViewController:(UIViewController *)modalViewController animated:(BOOL)animated NS_DEPRECATED_IOS(2_0, 6_0);
- (void)presentViewController:(UIViewController *)viewControllerToPresent animated: (BOOL)flag completion:(void (^)(void))completion NS_AVAILABLE_IOS(5_0);
- (void)dismissModalViewControllerAnimated:(BOOL)animated NS_DEPRECATED_IOS(2_0, 6_0);
- (void)dismissViewControllerAnimated: (BOOL)flag completion: (void (^)(void))completion NS_AVAILABLE_IOS(5_0);
typedef NS_ENUM(NSInteger, UILineBreakMode) {
UILineBreakModeWordWrap = 0, // Wrap at word boundaries
UILineBreakModeCharacterWrap, // Wrap at character boundaries
UILineBreakModeClip, // Simply clip when it hits the end of the rect
UILineBreakModeHeadTruncation, // Truncate at head of line: "…wxyz". Will truncate multiline text on first line
UILineBreakModeTailTruncation, // Truncate at tail of line: "abcd…". Will truncate multiline text on last line
UILineBreakModeMiddleTruncation, // Truncate middle of line: "ab…yz". Will truncate multiline text in the middle
} NS_DEPRECATED_IOS(2_0,6_0);
typedef NS_ENUM(NSInteger, NSLineBreakMode) { /* What to do with long lines */
NSLineBreakByWordWrapping = 0, /* Wrap at word boundaries, default */
NSLineBreakByCharWrapping, /* Wrap at character boundaries */
NSLineBreakByClipping, /* Simply clip */
NSLineBreakByTruncatingHead, /* Truncate at head of line: "…wxyz" */
NSLineBreakByTruncatingTail, /* Truncate at tail of line: "abcd…" */
NSLineBreakByTruncatingMiddle /* Truncate middle of line: "ab…yz" */
} NS_ENUM_AVAILABLE_IOS(6_0);
// Deprecated: use NSTextAlignment enum in UIKit/NSText.h
typedef NS_ENUM(NSInteger, UITextAlignment) {
UITextAlignmentLeft = 0,
UITextAlignmentCenter,
UITextAlignmentRight, // could add justified in future
} NS_DEPRECATED_IOS(2_0,6_0);
/* Values for NSTextAlignment */
typedef NS_ENUM(NSInteger, NSTextAlignment) {
NSTextAlignmentLeft = 0, // Visually left aligned
#if TARGET_OS_IPHONE
NSTextAlignmentCenter = 1, // Visually centered
NSTextAlignmentRight = 2, // Visually right aligned
#else /* !TARGET_OS_IPHONE */
NSTextAlignmentRight = 1, // Visually right aligned
NSTextAlignmentCenter = 2, // Visually centered
#endif
NSTextAlignmentJustified = 3, // Fully-justified. The last line in a paragraph is natural-aligned.
NSTextAlignmentNatural = 4, // Indicates the default alignment for script
} NS_ENUM_AVAILABLE_IOS(6_0);