1.隱私數據訪問問題:
[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.**
這是因為iOS對用戶的安全和隱私的增強,在申請很多私有權限的時候都需要添加描述,但是,在使用Xcode 8之前的Xcode還是使用系統的權限通知框.
要想解決這個問題,只需要在info.plist添加NSContactsUsageDescription的key, value自己隨意填寫就可以,這里列舉出對應的key(Source Code模式下):
<key>NSPhotoLibraryUsageDescription</key>
<string>App需要您的同意,才能訪問相冊</string>
<key>NSCameraUsageDescription</key>
<string>App需要您的同意,才能訪問相機</string>
<key>NSMicrophoneUsageDescription</key>
<string>App需要您的同意,才能訪問麥克風</string>
<key>NSLocationUsageDescription</key>
<string>App需要您的同意,才能訪問位置</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>App需要您的同意,才能在使用期間訪問位置</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>App需要您的同意,才能始終訪問位置</string>
<key>NSCalendarsUsageDescription</key>
<string>App需要您的同意,才能訪問日歷</string>
<key>NSRemindersUsageDescription</key>
<string>App需要您的同意,才能訪問提醒事項</string>
<key>NSMotionUsageDescription</key> <string>App需要您的同意,才能訪問運動與健身</string>
<key>NSHealthUpdateUsageDescription</key>
<string>App需要您的同意,才能訪問健康更新 </string>
<key>NSHealthShareUsageDescription</key>
<string>App需要您的同意,才能訪問健康分享</string>
<key>NSBluetoothPeripheralUsageDescription</key>
<string>App需要您的同意,才能訪問藍牙</string>
<key>NSAppleMusicUsageDescription</key>
<string>App需要您的同意,才能訪問媒體資料庫</string>
如果不起作用,可以請求后臺權限,類似于這樣:
<key>UIBackgroundModes</key>
<array>
<string>location</string>
...
</array>
2. 版本檢測
.#define isiOS10 ([[[[UIDevice currentDevice] systemVersion] substringToIndex:1] intValue]>=10)
它會永遠返回NO,substringToIndex:1在iOS 10 會被檢測成 iOS 1了,
應該使用下面的這些方法:
.#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
官方文檔中說:大多數core開頭的圖形框架和AVFoundation都提高了對擴展像素和寬色域色彩空間的支持.通過圖形堆棧擴展這種方式比以往支持廣色域的顯示設備更加容易?，F在對UIKit擴展可以在sRGB的色彩空間下工作，性能更好,也可以在更廣泛的色域來搭配sRGB顏色.如果你的項目中是通過低級別的api自己實現圖形處理的,建議使用sRGB,也就是說在項目中使用了RGB轉化顏色的建議轉換為使用sRGB,在UIColor類中新增了兩個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的問題
- 1.在iOS 9的時候,默認非HTTS的網絡是被禁止的,我們可以在info.plist文件中添加NSAppTransportSecurity字典,將NSAllowsArbitraryLoads設置為YES來禁用ATS;
- 2.從2017年1月1日起,,所有新提交的 app 默認不允許使用NSAllowsArbitraryLoads來繞過ATS的限制,默認情況下你的 app 可以訪問加密足夠強的(TLS V1.2以上)HTTPS內容;
- 3.可以選擇使用NSExceptionDomains設置白名單的方式對特定的域名開放HTTP內容來通過審核,比如說你的應用集成了第三方的登錄分享SDK,可以通過這種方式來做,下面以新浪SDK作為示范(Source Code 模式下):
- 4.在iOS 10 中info.plist文件新加入了NSAllowsArbitraryLoadsInWebContent鍵,允許任意web頁面加載,同時蘋果會用 ATS 來保護你的app;
- 5.安全傳輸不再支持SSLv3, 建議盡快停用SHA1和3DES算法;
借鑒 http://bbs.520it.com/forum.php?mod=viewthread&tid=2190
bug描述
- a. 通訊錄中選擇一個人手機號碼后
***** Terminating app due to uncaught exception 'CNPropertyNotFetchedException', reason: 'A property was not requested when contact was fetched.'**
要先判斷授權，再去訪問：
CFErrorRef *error = nil;
ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(nil, error);
ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
NSLog(@"granted==%d",granted);
if (granted) {
NSLog(@"授權成功！");
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(@"授權失敗!");
[self showError:@"授權失敗,請在設置中打開訪問權限"];
}
});```
- b. 通訊錄界面彈起后
> ****App if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction**
