iOS/Objective-C:将标签添加到actionsheet中的pickerview
我正在尝试向操作表中的pickerview添加标签 如果pickerview不在actionsheet中,则代码正在工作 我的代码:iOS/Objective-C:将标签添加到actionsheet中的pickerview,objective-c,ios,uilabel,uipickerview,uiactionsheet,Objective C,Ios,Uilabel,Uipickerview,Uiactionsheet,我正在尝试向操作表中的pickerview添加标签 如果pickerview不在actionsheet中,则代码正在工作 我的代码: - (void)initActionSheetPickerView { actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:nil cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil]; p
- (void)initActionSheetPickerView {
actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:nil cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil];
pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 40, 0, 0)];
pickerView.showsSelectionIndicator = YES;
pickerView.dataSource = self;
pickerView.delegate = self;
pickerViewMeasureLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 97, 50, 22)];
pickerViewMeasureLabel.text = @"asdf";
pickerViewMeasureLabel.font = [UIFont boldSystemFontOfSize:20];
pickerViewMeasureLabel.textColor = [UIColor blackColor];
pickerViewMeasureLabel.backgroundColor = [UIColor clearColor];
pickerViewMeasureLabel.shadowColor = [UIColor whiteColor];
pickerViewMeasureLabel.shadowOffset = CGSizeMake (0, 1);
[pickerView addSubview:pickerViewMeasureLabel];
UISegmentedControl *closeButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:@"Done"]];
closeButton.momentary = YES;
closeButton.frame = CGRectMake(260, 7, 50, 30);
closeButton.segmentedControlStyle = UISegmentedControlStyleBar;
closeButton.tintColor = [UIColor blackColor];
[closeButton addTarget:self action:@selector(dismissActionSheet:) forControlEvents:UIControlEventValueChanged];
[actionSheet addSubview:pickerView];
[actionSheet addSubview:closeButton];
}
您需要实现以下UIPickerView的数据源方法:
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
return [self.pickerOptions count];
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
return [self.pickerOptions objectAtIndex:row];
}
其中self.pickerOptions是您正在谈论的“标签”值的数组。但是,我建议您使用来处理此问题。它使得在UIActionSheets中处理UIPicker/DatePicker变得非常简单
从自述文件中可以看出,它的实现非常简单:
NSArray *options = [NSArray arrayWithObjects:@"One", @"Two", @"Three", @"Four", @"Five", nil];
EAActionSheetPicker *actionPicker = [[EAActionSheetPicker alloc]initWithOptions:options];
actionPicker.textField = self.emailField;
actionPicker.delegate = self;
[actionPicker showInView:self.view];
祝你好运 不要那样做。