1.隐私数据访问问题:
[access] This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSPhotoLibraryUsageDescription key with a string value explaining to the user how the app uses this data.**
这是因为iOS对用户的安全和隐私的增强,在申请很多私有权限的时候都需要添加描述,但是,在使用Xcode 8之前的Xcode还是使用系统的权限通知框.
要想解决这个问题,只需要在info.plist添加NSContactsUsageDescription的key, value自己随意填写就可以,这里列举出对应的key(Source Code模式下):
<key>NSPhotoLibraryUsageDescription</key>
<string>App需要您的同意,才能访问相册</string>
<key>NSCameraUsageDescription</key>
<string>App需要您的同意,才能访问相机</string>
<key>NSMicrophoneUsageDescription</key>
<string>App需要您的同意,才能访问麦克风</string>
<key>NSLocationUsageDescription</key>
<string>App需要您的同意,才能访问位置</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>App需要您的同意,才能在使用期间访问位置</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>App需要您的同意,才能始终访问位置</string>
<key>NSCalendarsUsageDescription</key>
<string>App需要您的同意,才能访问日历</string>
<key>NSRemindersUsageDescription</key>
<string>App需要您的同意,才能访问提醒事项</string>
<key>NSMotionUsageDescription</key> <string>App需要您的同意,才能访问运动与健身</string>
<key>NSHealthUpdateUsageDescription</key>
<string>App需要您的同意,才能访问健康更新 </string>
<key>NSHealthShareUsageDescription</key>
<string>App需要您的同意,才能访问健康分享</string>
<key>NSBluetoothPeripheralUsageDescription</key>
<string>App需要您的同意,才能访问蓝牙</string>
<key>NSAppleMusicUsageDescription</key>
<string>App需要您的同意,才能访问媒体资料库</string>
如果不起作用,可以请求后台权限,类似于这样:
<key>UIBackgroundModes</key>
<array>
<string>location</string>
...
</array>
2. 版本检测
.#define isiOS10 ([[[[UIDevice currentDevice] systemVersion] substringToIndex:1] intValue]>=10)
它会永远返回NO,substringToIndex:1在iOS 10 会被检测成 iOS 1了,
应该使用下面的这些方法:
.#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)
.#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
3.UIColor
官方文档中说:大多数core开头的图形框架和AVFoundation都提高了对扩展像素和宽色域色彩空间的支持.通过图形堆栈扩展这种方式比以往支持广色域的显示设备更加容易。现在对UIKit扩展可以在sRGB的色彩空间下工作，性能更好,也可以在更广泛的色域来搭配sRGB颜色.如果你的项目中是通过低级别的api自己实现图形处理的,建议使用sRGB,也就是说在项目中使用了RGB转化颜色的建议转换为使用sRGB,在UIColor类中新增了两个api:
- (UIColor *)initWithDisplayP3Red:(CGFloat)displayP3Red green:(CGFloat)green blue:(CGFloat)blue alpha:(CGFloat)alpha NS_AVAILABLE_IOS(10_0);
- (UIColor *)colorWithDisplayP3Red:(CGFloat)displayP3Red green:(CGFloat)green blue:(CGFloat)blue alpha:(CGFloat)alpha NS_AVAILABLE_IOS(10_0);
4.ATS的问题
- 1.在iOS 9的时候,默认非HTTS的网络是被禁止的,我们可以在info.plist文件中添加NSAppTransportSecurity字典,将NSAllowsArbitraryLoads设置为YES来禁用ATS;
- 2.从2017年1月1日起,,所有新提交的 app 默认不允许使用NSAllowsArbitraryLoads来绕过ATS的限制,默认情况下你的 app 可以访问加密足够强的(TLS V1.2以上)HTTPS内容;
- 3.可以选择使用NSExceptionDomains设置白名单的方式对特定的域名开放HTTP内容来通过审核,比如说你的应用集成了第三方的登录分享SDK,可以通过这种方式来做,下面以新浪SDK作为示范(Source Code 模式下):
- 4.在iOS 10 中info.plist文件新加入了NSAllowsArbitraryLoadsInWebContent键,允许任意web页面加载,同时苹果会用 ATS 来保护你的app;
- 5.安全传输不再支持SSLv3, 建议尽快停用SHA1和3DES算法;
借鉴 http://bbs.520it.com/forum.php?mod=viewthread&tid=2190
bug描述
- a. 通讯录中选择一个人手机号码后
***** Terminating app due to uncaught exception 'CNPropertyNotFetchedException', reason: 'A property was not requested when contact was fetched.'**
要先判断授权，再去访问：
CFErrorRef *error = nil;
ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(nil, error);
ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
NSLog(@"granted==%d",granted);
if (granted) {
NSLog(@"授权成功！");
ABPeoplePickerNavigationController *nav = [[ABPeoplePickerNavigationController alloc]init];
nav.peoplePickerDelegate =self;
if([[[UIDevice currentDevice] systemVersion] compare:@"8.0"] != NSOrderedAscending){
nav.predicateForSelectionOfPerson = [NSPredicate predicateWithValue:YES];
}
[self presentViewController:nav animated:YES completion:nil];
} else {
NSLog(@"授权失败!");
[self showError:@"授权失败,请在设置中打开访问权限"];
}
});```
- b. 通讯录界面弹起后
> ****App if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction**
