【发布时间】：2021-12-14 14:08:18
【问题描述】：
当我单击五个文本字段时，会出现选择器视图，但出现此错误。当您单击下方的两个文本字段时，选择器视图不会出现。如果我在滚动视图中制作这整个内容，则下部文本字段也可以与选择器视图一起使用。我找不到任何解决这个问题的方法 qwq 视图控制器中的所有东西都是自动调整大小的。
故事板图片：https://imgur.com/a/9gYud1D
代码：
import UIKit
import Charts
import CoreData
class ExamViewController: TabView, ChartViewDelegate, UIPickerViewDelegate, UIPickerViewDataSource, UITextFieldDelegate {
@IBOutlet weak var block1Label: UILabel!
@IBOutlet weak var block2Label: UILabel!
@IBOutlet weak var P1Field: UITextField!
@IBOutlet weak var P1Points: UITextField!
@IBOutlet weak var P2Field: UITextField!
@IBOutlet weak var P2Points: UITextField!
@IBOutlet weak var P3Field: UITextField!
@IBOutlet weak var P3Points: UITextField!
@IBOutlet weak var P4Field: UITextField!
@IBOutlet weak var P4Points: UITextField!
@IBOutlet weak var P5Field: UITextField!
@IBOutlet weak var P5Points: UITextField!
@IBOutlet weak var scrollView: UIScrollView!
var strCurrentFieldEditing: String = ""
var picks: [String] = []
var numberPicks: [String] = [ "0","1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15"]
let subjectPicker = UIPickerView()
let numberPicker = UIPickerView()
let toolBar = UIToolbar()
let notificationAlert = UIAlertController(title: "qwq", message: "qwq#2", preferredStyle: .alert)
override func viewDidLoad() {
super.viewDidLoad();
update()
subjectPicker.delegate = self
numberPicker.delegate = self
P1Field.delegate = self
P2Field.delegate = self
P3Field.delegate = self
P4Field.delegate = self
P5Field.delegate = self
P1Field.inputView = subjectPicker
P1Field.inputAccessoryView = toolBar
P2Field.inputView = subjectPicker
P2Field.inputAccessoryView = toolBar
P3Field.inputView = subjectPicker
P3Field.inputAccessoryView = toolBar
P4Field.inputView = subjectPicker
P4Field.inputAccessoryView = toolBar
P5Field.inputView = subjectPicker
P5Field.inputAccessoryView = toolBar
self.navigationItem.title = "Prüfungsübersicht"
notificationAlert.addAction(UIAlertAction(title: "OK", style: .cancel, handler: nil))
scrollView.contentSize = CGSize(
width: scrollView.visibleSize.width,
height: scrollView.visibleSize.height*1.1
)
}
func pickUp(_ textField : UITextField){
toolBar.barStyle = .default
toolBar.isTranslucent = true
toolBar.tintColor = UIColor.accentColor
toolBar.sizeToFit()
let doneButton = UIBarButtonItem(title: "Done", style: .plain, target: self, action: #selector(ExamViewController.donePicker))
let spaceButton = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let cancelButton = UIBarButtonItem(title: "Cancel", style: .plain, target: self, action: #selector(ExamViewController.cancelPicker))
toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false)
toolBar.isUserInteractionEnabled = true
}
@objc func donePicker() {
if(strCurrentFieldEditing == "P1"){
P1Field.resignFirstResponder()
}else if(strCurrentFieldEditing == "P2"){
P2Field.resignFirstResponder()
}else if(strCurrentFieldEditing == "P3"){
P3Field.resignFirstResponder()
}else if(strCurrentFieldEditing == "P4"){
P4Field.resignFirstResponder()
}else if(strCurrentFieldEditing == "P5"){
P5Field.resignFirstResponder()
}
update()
}
@objc func cancelPicker(){
if(strCurrentFieldEditing == "P1"){
P1Field.resignFirstResponder()
P1Points.text = nil
}else if(strCurrentFieldEditing == "P2"){
P2Field.resignFirstResponder()
P2Points.text = nil
}else if(strCurrentFieldEditing == "P3"){
P3Field.resignFirstResponder()
P3Points.text = nil
}else if(strCurrentFieldEditing == "P4"){
P4Field.resignFirstResponder()
P4Points.text = nil
}else if(strCurrentFieldEditing == "P5"){
P5Field.resignFirstResponder()
P5Points.text = nil
}
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated);
update()
}
// MARK: UIPickerView Delegation
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 2
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
if(component == 0){
return picks.count
}else {
return numberPicks.count
}
}
func pickerView( _ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if(component == 0){
return picks[row]
}else {
return numberPicks[row]
}
}
func pickerView( _ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if(picks.count == 0) {
self.present(self.notificationAlert, animated: true, completion: nil)
return }
if(component == 0){
if(strCurrentFieldEditing == "P1"){
P1Field.text = picks[row]
}else if(strCurrentFieldEditing == "P2"){
P2Field.text = picks[row]
}else if(strCurrentFieldEditing == "P3"){
P3Field.text = picks[row]
}else if(strCurrentFieldEditing == "P4"){
P4Field.text = picks[row]
}else if(strCurrentFieldEditing == "P5"){
P5Field.text = picks[row]
}
}else {
if(strCurrentFieldEditing == "P1"){
P1Points.text = numberPicks[row]
}else if(strCurrentFieldEditing == "P2"){
P2Points.text = numberPicks[row]
}else if(strCurrentFieldEditing == "P3"){
P3Points.text = numberPicks[row]
}else if(strCurrentFieldEditing == "P4"){
P4Points.text = numberPicks[row]
}else if(strCurrentFieldEditing == "P5"){
P5Points.text = numberPicks[row]
}
}
}
func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
if(picks.count == 0){ return false}
if(textField == P1Field){
self.strCurrentFieldEditing = "P1"
}else if(textField == P2Field){
self.strCurrentFieldEditing = "P2"
}else if(textField == P3Field){
self.strCurrentFieldEditing = "P3"
}else if(textField == P4Field){
self.strCurrentFieldEditing = "P4"
}else if(textField == P5Field){
self.strCurrentFieldEditing = "P5"
}
self.pickUp(textField)
return true
}
func update() {
picks = Util.getAllSubjectNames()
if((picks.firstIndex(of: P1Field.text ?? "")) != nil){
picks.remove(at: picks.firstIndex(of: P1Field.text ?? "")!)
}
if((picks.firstIndex(of: P2Field.text ?? "")) != nil){
picks.remove(at: picks.firstIndex(of: P2Field.text ?? "")!)
}
if((picks.firstIndex(of: P3Field.text ?? "")) != nil){
picks.remove(at: picks.firstIndex(of: P3Field.text ?? "")!)
}
if((picks.firstIndex(of: P4Field.text ?? "")) != nil){
picks.remove(at: picks.firstIndex(of: P4Field.text ?? "")!)
}
if((picks.firstIndex(of: P5Field.text ?? "")) != nil){
picks.remove(at: picks.firstIndex(of: P5Field.text ?? "")!)
}
}
}
}
这是我的错误
2021-10-29 15:16:32.284195+0200 Calq[3986:101986] Writing analzed variants.
objc[3986]: Class _PathPoint is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore (0x118606a78) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/TextInputUI.framework/TextInputUI (0x136e958b0). One of the two will be used. Which one is undefined.
objc[3986]: Class _PointQueue is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore (0x118606a50) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/TextInputUI.framework/TextInputUI (0x136e958d8). One of the two will be used. Which one is undefined.
2021-10-29 15:16:32.594144+0200 Calq[3986:101986] [LayoutConstraints] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want.
Try this:
(1) look at each constraint and try to figure out which you don't expect;
(2) find the code that added the unwanted constraint or constraints and fix it.
(Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSAutoresizingMaskLayoutConstraint:0x6000012f0960 h=--& v=--& _UIToolbarContentView:0x7f8620b429e0.width == 0 (active)>",
"<NSLayoutConstraint:0x6000012e0730 H:|-(0)-[_UIButtonBarStackView:0x7f8620b43290] (active, names: '|':_UIToolbarContentView:0x7f8620b429e0 )>",
"<NSLayoutConstraint:0x6000012e0780 H:[_UIButtonBarStackView:0x7f8620b43290]-(0)-| (active, names: '|':_UIToolbarContentView:0x7f8620b429e0 )>",
"<NSLayoutConstraint:0x6000012fb6b0 'TB_Leading_Leading' H:|-(0)-[_UIModernBarButton:0x7f861ff7c3b0'Cancel'] (active, names: '|':_UIButtonBarButton:0x7f861ff7be90 )>",
"<NSLayoutConstraint:0x6000012fb700 'TB_Trailing_Trailing' H:[_UIModernBarButton:0x7f861ff7c3b0'Cancel']-(8)-| (active, names: '|':_UIButtonBarButton:0x7f861ff7be90 )>",
"<NSLayoutConstraint:0x6000012f0000 'UISV-canvas-connection' UILayoutGuide:0x6000008a3020'UIViewLayoutMarginsGuide'.leading == _UIButtonBarButton:0x7f861ff7be90.leading (active)>",
"<NSLayoutConstraint:0x6000012f0230 'UISV-canvas-connection' UILayoutGuide:0x6000008a3020'UIViewLayoutMarginsGuide'.trailing == _UIButtonBarButton:0x7f861ff7eb70.trailing (active)>",
"<NSLayoutConstraint:0x6000012f0280 'UISV-spacing' H:[_UIButtonBarButton:0x7f861ff7be90]-(0)-[UIView:0x7f861ff7ea00] (active)>",
"<NSLayoutConstraint:0x6000012f02d0 'UISV-spacing' H:[UIView:0x7f861ff7ea00]-(0)-[_UIButtonBarButton:0x7f861ff7eb70] (active)>",
"<NSLayoutConstraint:0x6000012e0550 'UIView-leftMargin-guide-constraint' H:|-(0)-[UILayoutGuide:0x6000008a3020'UIViewLayoutMarginsGuide'](LTR) (active, names: '|':_UIButtonBarStackView:0x7f8620b43290 )>",
"<NSLayoutConstraint:0x6000012e05f0 'UIView-rightMargin-guide-constraint' H:[UILayoutGuide:0x6000008a3020'UIViewLayoutMarginsGuide']-(0)-|(LTR) (active, names: '|':_UIButtonBarStackView:0x7f8620b43290 )>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x6000012fb700 'TB_Trailing_Trailing' H:[_UIModernBarButton:0x7f861ff7c3b0'Cancel']-(8)-| (active, names: '|':_UIButtonBarButton:0x7f861ff7be90 )>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.
2021-10-29 15:16:32.595554+0200 Calq[3986:101986] [LayoutConstraints] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want.
Try this:
(1) look at each constraint and try to figure out which you don't expect;
(2) find the code that added the unwanted constraint or constraints and fix it.
(Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSAutoresizingMaskLayoutConstraint:0x6000012f0960 h=--& v=--& _UIToolbarContentView:0x7f8620b429e0.width == 0 (active)>",
"<NSLayoutConstraint:0x6000012e0730 H:|-(0)-[_UIButtonBarStackView:0x7f8620b43290] (active, names: '|':_UIToolbarContentView:0x7f8620b429e0 )>",
"<NSLayoutConstraint:0x6000012e0780 H:[_UIButtonBarStackView:0x7f8620b43290]-(0)-| (active, names: '|':_UIToolbarContentView:0x7f8620b429e0 )>",
"<NSLayoutConstraint:0x6000012fbca0 'TB_Leading_Leading' H:|-(8)-[_UIModernBarButton:0x7f861ff7ed50'Done'] (active, names: '|':_UIButtonBarButton:0x7f861ff7eb70 )>",
"<NSLayoutConstraint:0x6000012fbcf0 'TB_Trailing_Trailing' H:[_UIModernBarButton:0x7f861ff7ed50'Done']-(0)-| (active, names: '|':_UIButtonBarButton:0x7f861ff7eb70 )>",
"<NSLayoutConstraint:0x6000012f0000 'UISV-canvas-connection' UILayoutGuide:0x6000008a3020'UIViewLayoutMarginsGuide'.leading == _UIButtonBarButton:0x7f861ff7be90.leading (active)>",
"<NSLayoutConstraint:0x6000012f0230 'UISV-canvas-connection' UILayoutGuide:0x6000008a3020'UIViewLayoutMarginsGuide'.trailing == _UIButtonBarButton:0x7f861ff7eb70.trailing (active)>",
"<NSLayoutConstraint:0x6000012f0280 'UISV-spacing' H:[_UIButtonBarButton:0x7f861ff7be90]-(0)-[UIView:0x7f861ff7ea00] (active)>",
"<NSLayoutConstraint:0x6000012f02d0 'UISV-spacing' H:[UIView:0x7f861ff7ea00]-(0)-[_UIButtonBarButton:0x7f861ff7eb70] (active)>",
"<NSLayoutConstraint:0x6000012e0550 'UIView-leftMargin-guide-constraint' H:|-(0)-[UILayoutGuide:0x6000008a3020'UIViewLayoutMarginsGuide'](LTR) (active, names: '|':_UIButtonBarStackView:0x7f8620b43290 )>",
"<NSLayoutConstraint:0x6000012e05f0 'UIView-rightMargin-guide-constraint' H:[UILayoutGuide:0x6000008a3020'UIViewLayoutMarginsGuide']-(0)-|(LTR) (active, names: '|':_UIButtonBarStackView:0x7f8620b43290 )>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x6000012fbcf0 'TB_Trailing_Trailing' H:[_UIModernBarButton:0x7f861ff7ed50'Done']-(0)-| (active, names: '|':_UIButtonBarButton:0x7f861ff7eb70 )>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.```
【问题讨论】：
-
您的视图约束不正确，检查每个视图约束并修复它。限制情节提要中发生的重叠。
标签： ios swift uipickerview nslayoutconstraint