我正在使用 UIDatePicker 并在单击 UITextField 时实现 UIToolBar。但是当我单击文本字段时,它会崩溃。我正在使用以下代码。
datepicker = [[UIDatePicker alloc] initWithFrame:CGRectZero];
[datepicker setDatePickerMode:UIDatePickerModeDate];
[datepicker addTarget:self actionselector(changeDate forControlEvents:UIControlEventValueChanged];
UIToolbar *toolbar= [[UIToolbar alloc] initWithFrame:CGRectMake(0,0,self.view.frame.size.width,44)];
toolbar.barStyle = UIBarStyleDefault;
UIBarButtonItem *flexibleSpaceLeft = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIBarButtonItem* doneButton = [[UIBarButtonItem alloc] initWithTitle"Done" style:UIBarButtonItemStyleDone target:self actionselector(dismiss)];
[toolbar setItems:[NSArray arrayWithObjects:flexibleSpaceLeft, doneButton, nil]];
[datepicker addSubview:toolbar];
textField.inputAccessoryView = toolbar;
textField.inputView = datepicker;
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'lease file a radar on UIKit with this log if you see this assertion. selectorString = setTitle:, exercisedImplementations = { "setTitle:" = ( ); }'
提前致谢。
将 UITextField
的 inputAccessoryView
设置为已经有 superview 的 View 会导致崩溃。
所以,不要将工具栏添加为 UIDatePicker
的 subview 。删除
[datepicker addSubview:toolbar];
然后设置
textField.inputAccessoryView = toolbar;
工具栏将出现在数据选择器上方。
关于ios - 带有 UIToolbar 错误的 UIDatePicker,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51696632/
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