ios - IOS 14 XCode Beta 4 中的 UISwitch 行为发生了变化

Question

有没有人注意到在 Beta 4 中添加到 UISwitch 的更改，如果你设置一个开关标签，由于某种原因它不尊重它？我以编程方式将一个开关添加到 TableView 单元格的附件视图中，一旦选择了该单元格，我就访问该开关以获取它的标签，以了解它是哪个开关以及已更改的状态。

以下是代码示例：

if (_showSwitch) {
    if (cell.accessoryView == nil) {
       cell.selectionStyle = UITableViewCellSelectionStyleNone;
       switchview = [[UISwitch alloc]initWithFrame:CGRectZero];
       switchview.tag = indexPath.row;
       cell.accessoryView = switchview;
       [switchview addTarget:self action:@selector(switchChanged:) 
       forControlEvents:UIControlEventValueChanged];
        cell.backgroundColor = UIColor.systemGray2Color;
    }

    NSArray *strArray = [_tableDataSource[indexPath.row] componentsSeparatedByString:@"/"]; 
    _row = indexPath.row;
    _cellLabel = strArray[0];

    cell.textLabel.text =  _cellLabel;
    _cellArray =    [_cellArray arrayByAddingObject:(NSString *)_cellLabel];

    if (_level >= 1) {
        _deviceID =   strArray[1];
        _deviceArray =   [_deviceArray arrayByAddingObject:_deviceID];
        _lowcaseDeviceID = _deviceID = _deviceID.lowercaseString;    
        dictLookup =     _statusDict[_lowcaseDeviceID];
        if (_row >= 1) {
            mycmdString = [mycmdString stringByAppendingString:@","];
        }
        mycmdString =    [mycmdString stringByAppendingString:_deviceID];

        UISwitch *switchView = (UISwitch *)cell.accessoryView;

        [switchView setOn:NO animated:NO];
        if ([dictLookup isEqualToString:@"ON"]) {
            cell.textLabel.textColor = UIColor.systemGreenColor;
            [switchView setOn:YES animated:YES];
        }
        _callForStatus = TRUE;
    } else {
        cell.accessoryType = UITableViewCellAccessoryNone;
        cell.accessoryView = nil;
        cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    }

- (IBAction)ControlView:(UISwitch *)sender {
    ControlViewController *flController = [[ControlViewController alloc]
                                           initWithNibName:@"ControlViewController" bundle:nil];
    (flController.navigationItem).title = [NSString stringWithFormat:@"%@ - %@", _deviceName, _device];
    _level = _level += 1;
    flController.deviceID = _device;
    flController.deviceName = _deviceName;
    flController.deviceState = @"OFF";
    if ((sender.isOn) == YES) {
        flController.deviceState = @"ON";
    }
    double delayInSeconds = 0.1;
    dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
    dispatch_after(popTime, dispatch_get_main_queue(), ^(void) {
        [self presentViewController:flController animated:YES completion:nil];
    });
}


    - (void)switchChanged:(UISwitch *)sender {
        bool mode;
        UISwitch *switchControl = sender;
        if (switchControl.isOn == YES) {
            [switchControl setOn:YES animated:YES];
            mode = TRUE;
            [General playSound:@"Button Up.mp3"];
        } else {
            [switchControl setOn:NO animated:NO];
            mode = FALSE;
            [General playSound:@"Button Down.mp3"];
        }
        sender.highlighted = YES;
        _callForStatus = TRUE;
        [self executeSwitchAtRow:switchControl.tag forMode:mode];
      //  if (_level >= 1) [self startStepperTimer];
    }

    - (void)executeSwitchAtRow:(NSInteger)row forMode:(BOOL)onoff {
        NSString *mode = @"OFF";
        if (onoff) {
            mode = @"ON";
        }
        NSString *device = _deviceArray[row];
        Debug_1(@"Send Switch Change for device %@ %@",device,mode);
    
        NSString *execCommand = [NSString stringWithFormat:@"device %@ %@", mode, device];
    
        [[NSNotificationCenter defaultCenter] postNotificationName:@"sendMessageFromExternal" object:self
                                                          userInfo:@{ @"cmd": execCommand }];
        if (_level >= 1) [self startStepperTimer];
    
    }

...

标签： iosobjective-cxcodeuiswitchios14