問題：Unbalanced calls to begin/end appearance transitions for
解決：
如果是自定義的UITabBarController需要加入以下方法

#pragma mark - view周期
-(void)viewWillAppear:(BOOL)animated
{
    [self.selectedViewController beginAppearanceTransition: YES animated: animated]; 
}

-(void) viewDidAppear:(BOOL)animated
{
    [self.selectedViewController endAppearanceTransition];
}

-(void) viewWillDisappear:(BOOL)animated
{
    [self.selectedViewController beginAppearanceTransition: NO animated: animated];
}

-(void) viewDidDisappear:(BOOL)animated
{
    [self.selectedViewController endAppearanceTransition];
}

問題：subsystem: com.apple.UIKit, category: Touch, enable_level: 0, persist_level: 0, default_ttl: 1, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
解決：

添加鍵值為：OS_ACTIVITY_MODE
Value值為：disable

問題：Xcode8之后訪問相冊、相機(jī)、位置、麥克風(fēng)、藍(lán)牙等權(quán)限
解決：

NSBluetoothPeripheralUsageDescription
訪問藍(lán)牙

NSCalendarsUsageDescription
訪問日歷

NSCameraUsageDescription
相機(jī)

NSPhotoLibraryUsageDescription
相冊

NSContactsUsageDescription
通訊錄

NSLocationAlwaysUsageDescription
始終訪問位置

NSLocationUsageDescription
位置

NSLocationWhenInUseUsageDescription
在使用期間訪問位置

NSMicrophoneUsageDescription
麥克風(fēng)

NSAppleMusicUsageDescription
訪問媒體資料庫

NSHealthShareUsageDescription
訪問健康分享

NSHealthUpdateUsageDescription
訪問健康更新

NSMotionUsageDescription
訪問運(yùn)動與健身

NSRemindersUsageDescription
訪問提醒事項(xiàng)


問題：Snapshotting a view that has not been rendered results in an empty snapshot. Ensure your view has been rendered at least once before snapshotting or snapshot after screen updates.

解決：將跳轉(zhuǎn)的相機(jī)VC屬性設(shè)置成
picker.modalPresentationStyle = UIModalPresentationOverCurrentContext;

問題：[MC] Reading from public effective user settings.

解決：設(shè)置權(quán)限的plist需要給一個(gè)描述