自定义输入视图控制器

Question

是否可以在 iOS9 上使用 UIInputViewController 子类作为输入视图？我已经尝试设置 inputViewController 属性但是当我的文本字段成为第一响应者时没有自定义视图控制器出现。

@interface InputViewController : UIInputViewController

@end

@implementation InputViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    UIDatePicker *datePicker = [[UIDatePicker alloc] init];
    datePicker.translatesAutoresizingMaskIntoConstraints = NO;

    [self.inputView addSubview:datePicker];

    [datePicker.leadingAnchor constraintEqualToAnchor:self.inputView.leadingAnchor].active = YES;
    [datePicker.trailingAnchor constraintEqualToAnchor:self.inputView.trailingAnchor].active = YES;
    [datePicker.topAnchor constraintEqualToAnchor:self.inputView.topAnchor].active = YES;
    [datePicker.bottomAnchor constraintEqualToAnchor:self.inputView.bottomAnchor].active = YES;
}

@end

@interface TextField: UITextField

@property (nonatomic, readwrite, strong) UIInputViewController *inputViewController;

@end

@implementation TextField
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    self.textField.inputViewController = [[InputViewController alloc] init];
}

@end

Answer 1

原来丢失的部分是：

self.view.translatesAutoresizingMaskIntoConstraints = NO;

非常沮丧 UIInputViewController 不会自动执行此操作。

自定义输入视图控制器

Custom input view controller

objective-c

uiinputviewcontroller

ios9