iOS11适配问题总结

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一、tableview 留空

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- (instancetype)initWithFrame:(CGRect)frame style:(UITableViewStyle)style{
    self = [super initWithFrame:frame style:style];
    if (self) {
        self.estimatedRowHeight = 0;
        self.estimatedSectionHeaderHeight = 0;
        self.estimatedSectionFooterHeight = 0;
    }
    return self;
}

二、导航栏返回按钮

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UIImage *backButtonImage = [[UIImage imageNamed:@"arrow_back_gray"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 30, 0, 0)
                                                                                      resizingMode:UIImageResizingModeTile];
   [[UIBarButtonItem appearance] setBackButtonBackgroundImage:backButtonImage
                                                     forState:UIControlStateNormal
                                                   barMetrics:UIBarMetricsDefault];
   
   self.navigationController.navigationBar.backIndicatorImage = [UIImage imageNamed:@"arrow_back_gray"];
   self.navigationController.navigationBar.backIndicatorTransitionMaskImage = [UIImage imageNamed:@"arrow_back_gray"];

三、判断11

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if (@available(iOS 11.0, *)) {
    } else {
    }
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#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_11_0
#eles
#endif

四、键盘默认大写不起作用 （待解决）

_carTextField.autocapitalizationType=UITextAutocapitalizationTypeAllCharacters;//所有字母大写

五、左滑删除崩溃问题

使用 MGSwipeTableCell

你的cell 继承MGSwipeTableCell

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cell.delegate = self;
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#pragma mark Swipe Delegate
-(BOOL) swipeTableCell:(MGSwipeTableCell*) cell canSwipe:(MGSwipeDirection) direction;
{
    return YES;
}
-(NSArray*) swipeTableCell:(MGSwipeTableCell*) cell swipeButtonsForDirection:(MGSwipeDirection)direction
             swipeSettings:(MGSwipeSettings*) swipeSettings expansionSettings:(MGSwipeExpansionSettings*) expansionSettings
{
    swipeSettings.transition = MGSwipeTransitionBorder;
    expansionSettings.buttonIndex = 0;
    __weak BHAllMessageVC * me = self;
    BHMessageModel *model =  [me mailForIndexPath:[self.allMessageTableView indexPathForCell:cell]];
     if (direction == MGSwipeDirectionLeftToRight) {
         return nil;
     }else{
         expansionSettings.fillOnTrigger = YES;
         expansionSettings.threshold = 1.1;
         CGFloat padding = 15;
         MGSwipeButton * trash = [MGSwipeButton buttonWithTitle:@"删除" backgroundColor:[UIColor colorWithRed:1.0 green:59/255.0 blue:50/255.0 alpha:1.0] padding:padding callback:^BOOL(MGSwipeTableCell *sender) {
             NSIndexPath * indexPath = [me.allMessageTableView indexPathForCell:sender];
             [me deleteMail:indexPath addModel:model];
              [cell hideSwipeAnimated:YES];
             return NO; //don't autohide to improve delete animation
         }];
         return @[trash];
     }
}
-(BHMessageModel *) mailForIndexPath:(NSIndexPath*) path
{
    return [self.allMessageData objectAtIndex:path.section];
}
-(void) deleteMail:(NSIndexPath *) indexPath addModel:(BHMessageModel*)model
{
    [self.allMessageData removeObjectAtIndex:indexPath.section];
    [self.allMessageTableView deleteSections:[NSIndexSet indexSetWithIndex:indexPath.section] withRowAnimation:UITableViewRowAnimationNone];
    [self.allMessageTableView endUpdates];
    [[BHQuoteManager manager] PostDeleteMessageByMesasgeId:model.messageId Sucess:^(NSMutableDictionary *dicData) {
        NSLog(@"%@",dicData);
    } failure:^(NSError *error) {
        NSLog(@"%@",error);
        BHAlert(@"", @"删除消息失败");
    }];
}
-(void) swipeTableCell:(MGSwipeTableCell*) cell didChangeSwipeState:(MGSwipeState)state gestureIsActive:(BOOL)gestureIsActive
{
    NSString * str;
    switch (state) {
        case MGSwipeStateNone: str = @"None"; break;
        case MGSwipeStateSwippingLeftToRight: str = @"SwippingLeftToRight"; break;
        case MGSwipeStateSwippingRightToLeft: str = @"SwippingRightToLeft"; break;
        case MGSwipeStateExpandingLeftToRight: str = @"ExpandingLeftToRight"; break;
        case MGSwipeStateExpandingRightToLeft: str = @"ExpandingRightToLeft"; break;
    }
    NSLog(@"Swipe state: %@ ::: Gesture: %@", str, gestureIsActive ? @"Active" : @"Ended");
}

六、UIScrollView

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if (@available(iOS 11.0, *)) {
            _scrollView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
        }

####七、线程错误

Main Thread Checker: UI API called on a background thread: -[UIApplication applicationState]PID: 37870, TID: 5563145, Thread name: (none), Queue name: com.tencent.bugly.operationQueue (QOS: UTILITY), QoS: 17

正确

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dispatch_async(dispatch_get_main_queue()

error

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dispatch_sync(dispatch_get_main_queue()

参考