objective c 如何根据 select 第一个文本字段项目删除第二个和第三个文本字段中的项目
objective c how to remove the item in second and third text field based on select the first text field item
我有一个 UIPickerview。我有 json 回复。我有三个文本字段。如果用户 select 第一个文本字段显示选择器视图然后用户 select 特定项目。第二个和第三个文本字段也相同。我的要求是，如果用户 select 第一个选择器视图中的特定项目，第二个和第三个选择器视图不显示该项目。第二个和第三个也一样。
-(void)viewDidLoad
{
dataArray = [[NSMutableArray alloc]initWithObjects:@"A+",@"A-",@"B+",@"B-",@"O+",@"O-", nil];
bloodGroup = [[UITextField alloc]initWithFrame:CGRectMake(10, logoImg.frame.origin.y+logoImg.frame.size.height+45, screenWidth-20, 50)];
bloodGroup.borderStyle = UITextBorderStyleRoundedRect;
bloodGroup.font = [UIFont systemFontOfSize:15];
bloodGroup.placeholder = @"Please Select Your Option";
bloodGroup.delegate = self;
[self.view addSubview:bloodGroup];
txtField1 = [[UITextField alloc]initWithFrame:CGRectMake(10, ansField1.frame.origin.y+ansField1.frame.size.height+45, screenWidth-20, 50)];
txtField1.borderStyle = UITextBorderStyleRoundedRect;
txtField1.font = [UIFont systemFontOfSize:15];
txtField1.placeholder = @"Please Select Your Option";
txtField1.delegate = self;
[self.view addSubview:txtField1];
txtField2 = [[UITextField alloc]initWithFrame:CGRectMake(10, ansField2.frame.origin.y+ansField2.frame.size.height+45, screenWidth-20, 50)];
txtField2.borderStyle = UITextBorderStyleRoundedRect;
txtField2.font = [UIFont systemFontOfSize:15];
txtField2.placeholder = @"Please Select Your Option";
txtField2.delegate = self;
[self.view addSubview:txtField2];
myPickerView = [[UIPickerView alloc] init];
[myPickerView setDataSource: self];
[myPickerView setDelegate: self];
myPickerView.showsSelectionIndicator = YES;
bloodGroup.inputView = myPickerView;
bloodGroup.inputAccessoryView = toolBar;
// txtField1
txtField1.inputView = myPickerView;
txtField1.inputAccessoryView = toolBar;
txtField2.inputView = myPickerView;
txtField2.inputAccessoryView = toolBar;
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
if (isBloodGroupFieldSelected) {
return 1;
}
else if(!isBloodGroupFieldSelected){
return 1;
}
else if(!isGenderGroupFieldSelected)
{
return 1;
}
return 0;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
if (isBloodGroupFieldSelected) {
return [dataArray count];
}
else if(!isBloodGroupFieldSelected)
{
return [dataArray count];
}
else if (!isGenderGroupFieldSelected)
{
return [dataArray count];
}
return 0;
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
if (isBloodGroupFieldSelected)
{
return dataArray[row];
}
else if((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected))
{
return dataArray[row];
}
else if(!isGenderGroupFieldSelected)
{
return dataArray[row];
}
return 0;
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
if (isBloodGroupFieldSelected) {
bloodGroup.text = dataArray[row];
}
else if((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected))
{
txtField1.text = dataArray[row];
}
else if(!isGenderGroupFieldSelected)
{
txtField2.text= dataArray[row];
}
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
if (textField == bloodGroup) {
isBloodGroupFieldSelected = YES;
}
else if (textField == txtField1){
isBloodGroupFieldSelected = NO;
isGenderGroupFieldSelected = YES;
}
else if (textField == txtField2) {
isGenderGroupFieldSelected = NO;
isBloodGroupFieldSelected = NO;
}
[myPickerView reloadAllComponents];
}
-(void)viewDidLoad
{
dataArray = [[NSMutableArray alloc]initWithObjects:@"A+",@"A-",@"B+",@"B-",@"O+",@ "O-", 无];
bloodGroup = [[UITextField alloc]initWithFrame:CGRectMake(10, logoImg.frame.origin.y+logoImg.frame.size.height+45, screenWidth-20, 50)];
bloodGroup.borderStyle = UITextBorderStyleRoundedRect;
bloodGroup.font = [UIFont systemFontOfSize:15];
bloodGroup.placeholder = @"Please Select Your Option";
bloodGroup.delegate = 自己；
[self.view addSubview:bloodGroup];
txtField1 = [[UITextField alloc]initWithFrame:CGRectMake(10, ansField1.frame.origin.y+ansField1.frame.size.height+45, screenWidth-20, 50)];
txtField1.borderStyle = UITextBorderStyleRoundedRect;
txtField1.font = [UIFont systemFontOfSize:15];
txtField1.placeholder = @"Please Select Your Option";
txtField1.delegate = 自己；
[self.view addSubview:txtField1];
txtField2 = [[UITextField alloc]initWithFrame:CGRectMake(10, ansField2.frame.origin.y+ansField2.frame.size.height+45, screenWidth-20, 50)];
txtField2.borderStyle = UITextBorderStyleRoundedRect;
txtField2.font = [UIFont systemFontOfSize:15];
txtField2.placeholder = @"Please Select Your Option";
txtField2.delegate = 自己；
[self.view addSubview:txtField2];
myPickerView = [[UIPickerView 分配] 初始化];
[myPickerView setDataSource: self];
[myPickerView setDelegate: self];
myPickerView.showsSelectionIndicator = 是；
bloodGroup.inputView = myPickerView;
bloodGroup.inputAccessoryView = 工具栏;
// txtField1
txtField1.inputView = myPickerView;
txtField1.inputAccessoryView = 工具栏;
txtField2.inputView = myPickerView;
txtField2.inputAccessoryView = 工具栏;
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
if (isBloodGroupFieldSelected) {
return1;
}
否则如果(!isBloodGroupFieldSelected){
return1;
}
else if(!isGenderGroupFieldSelected)
{
return1;
}
return 0;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
if (isBloodGroupFieldSelected) {
return [dataArray 计数];
}
else if(!isBloodGroupFieldSelected)
{
return [dataArray 计数];
}
else if (!isGenderGroupFieldSelected)
{
return [dataArray 计数];
}
return 0;
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
if (isBloodGroupFieldSelected)
{
return 数据数组[行];
}
else if((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected))
{
return 数据数组[行];
}
else if(!isGenderGroupFieldSelected)
{
return 数据数组[行];
}
return 0;
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
if (isBloodGroupFieldSelected) {
bloodGroup.text = 数据数组[行];
}
else if((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected))
{
txtField1.text = 数据数组[行];
}
else if(!isGenderGroupFieldSelected)
{
txtField2.text=数据数组[行];
}
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
if (textField == bloodGroup) {
isBloodGroupFieldSelected = 是；
}
else if (textField == txtField1){
isBloodGroupFieldSelected = 否；
isGenderGroupFieldSelected = 是；
}
else if (textField == txtField2) {
isGenderGroupFieldSelected = 否；
isBloodGroupFieldSelected = 否；
}
[myPickerView reloadAllComponents];
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
if (textField == bloodGroup) {
isBloodGroupFieldSelected = 是；
}else if (textField == txtField1){
isBloodGroupFieldSelected = 否；
isGenderGroupFieldSelected = 是；
}
else if (textField == txtField2){
isGenderGroupFieldSelected = 否；
isBloodGroupFieldSelected = 否；
}
[myPickerView reloadAllComponents];
}
- (void)viewWillAppear:(BOOL)动画{
[超级viewWillAppear:animated];
[myPickerView selectRow:0 inComponent:0 animated:YES];
}
-(void)完成:(id)发件人
{
[myPickerView selectRow:0 inComponent:0 animated:YES]; // 2020 年 4 月 27 日
[bloodGroup resignFirstResponder];
[txtField1 resignFirstResponder];
[txtField2 resignFirstResponder];
}
我有一个 UIPickerview。我有 json 回复。我有三个文本字段。如果用户 select 第一个文本字段显示选择器视图然后用户 select 特定项目。第二个和第三个文本字段也相同。我的要求是，如果用户 select 第一个选择器视图中的特定项目，第二个和第三个选择器视图不显示该项目。第二个和第三个也一样。
-(void)viewDidLoad
{
dataArray = [[NSMutableArray alloc]initWithObjects:@"A+",@"A-",@"B+",@"B-",@"O+",@"O-", nil];
bloodGroup = [[UITextField alloc]initWithFrame:CGRectMake(10, logoImg.frame.origin.y+logoImg.frame.size.height+45, screenWidth-20, 50)];
bloodGroup.borderStyle = UITextBorderStyleRoundedRect;
bloodGroup.font = [UIFont systemFontOfSize:15];
bloodGroup.placeholder = @"Please Select Your Option";
bloodGroup.delegate = self;
[self.view addSubview:bloodGroup];
txtField1 = [[UITextField alloc]initWithFrame:CGRectMake(10, ansField1.frame.origin.y+ansField1.frame.size.height+45, screenWidth-20, 50)];
txtField1.borderStyle = UITextBorderStyleRoundedRect;
txtField1.font = [UIFont systemFontOfSize:15];
txtField1.placeholder = @"Please Select Your Option";
txtField1.delegate = self;
[self.view addSubview:txtField1];
txtField2 = [[UITextField alloc]initWithFrame:CGRectMake(10, ansField2.frame.origin.y+ansField2.frame.size.height+45, screenWidth-20, 50)];
txtField2.borderStyle = UITextBorderStyleRoundedRect;
txtField2.font = [UIFont systemFontOfSize:15];
txtField2.placeholder = @"Please Select Your Option";
txtField2.delegate = self;
[self.view addSubview:txtField2];
myPickerView = [[UIPickerView alloc] init];
[myPickerView setDataSource: self];
[myPickerView setDelegate: self];
myPickerView.showsSelectionIndicator = YES;
bloodGroup.inputView = myPickerView;
bloodGroup.inputAccessoryView = toolBar;
// txtField1
txtField1.inputView = myPickerView;
txtField1.inputAccessoryView = toolBar;
txtField2.inputView = myPickerView;
txtField2.inputAccessoryView = toolBar;
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
if (isBloodGroupFieldSelected) {
return 1;
}
else if(!isBloodGroupFieldSelected){
return 1;
}
else if(!isGenderGroupFieldSelected)
{
return 1;
}
return 0;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
if (isBloodGroupFieldSelected) {
return [dataArray count];
}
else if(!isBloodGroupFieldSelected)
{
return [dataArray count];
}
else if (!isGenderGroupFieldSelected)
{
return [dataArray count];
}
return 0;
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
if (isBloodGroupFieldSelected)
{
return dataArray[row];
}
else if((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected))
{
return dataArray[row];
}
else if(!isGenderGroupFieldSelected)
{
return dataArray[row];
}
return 0;
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
if (isBloodGroupFieldSelected) {
bloodGroup.text = dataArray[row];
}
else if((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected))
{
txtField1.text = dataArray[row];
}
else if(!isGenderGroupFieldSelected)
{
txtField2.text= dataArray[row];
}
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
if (textField == bloodGroup) {
isBloodGroupFieldSelected = YES;
}
else if (textField == txtField1){
isBloodGroupFieldSelected = NO;
isGenderGroupFieldSelected = YES;
}
else if (textField == txtField2) {
isGenderGroupFieldSelected = NO;
isBloodGroupFieldSelected = NO;
}
[myPickerView reloadAllComponents];
}
-(void)viewDidLoad {
dataArray = [[NSMutableArray alloc]initWithObjects:@"A+",@"A-",@"B+",@"B-",@"O+",@ "O-", 无];
bloodGroup = [[UITextField alloc]initWithFrame:CGRectMake(10, logoImg.frame.origin.y+logoImg.frame.size.height+45, screenWidth-20, 50)];
bloodGroup.borderStyle = UITextBorderStyleRoundedRect;
bloodGroup.font = [UIFont systemFontOfSize:15];
bloodGroup.placeholder = @"Please Select Your Option";
bloodGroup.delegate = 自己；
[self.view addSubview:bloodGroup];
txtField1 = [[UITextField alloc]initWithFrame:CGRectMake(10, ansField1.frame.origin.y+ansField1.frame.size.height+45, screenWidth-20, 50)];
txtField1.borderStyle = UITextBorderStyleRoundedRect;
txtField1.font = [UIFont systemFontOfSize:15];
txtField1.placeholder = @"Please Select Your Option";
txtField1.delegate = 自己；
[self.view addSubview:txtField1];
txtField2 = [[UITextField alloc]initWithFrame:CGRectMake(10, ansField2.frame.origin.y+ansField2.frame.size.height+45, screenWidth-20, 50)];
txtField2.borderStyle = UITextBorderStyleRoundedRect;
txtField2.font = [UIFont systemFontOfSize:15];
txtField2.placeholder = @"Please Select Your Option";
txtField2.delegate = 自己；
[self.view addSubview:txtField2];
myPickerView = [[UIPickerView 分配] 初始化];
[myPickerView setDataSource: self];
[myPickerView setDelegate: self];
myPickerView.showsSelectionIndicator = 是；
bloodGroup.inputView = myPickerView;
bloodGroup.inputAccessoryView = 工具栏;
// txtField1
txtField1.inputView = myPickerView;
txtField1.inputAccessoryView = 工具栏;
txtField2.inputView = myPickerView;
txtField2.inputAccessoryView = 工具栏;
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
if (isBloodGroupFieldSelected) {
return1;
}
否则如果(!isBloodGroupFieldSelected){
return1;
}
else if(!isGenderGroupFieldSelected)
{
return1;
}
return 0;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
if (isBloodGroupFieldSelected) {
return [dataArray 计数];
}
else if(!isBloodGroupFieldSelected)
{
return [dataArray 计数];
}
else if (!isGenderGroupFieldSelected)
{
return [dataArray 计数];
}
return 0;
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
if (isBloodGroupFieldSelected)
{
return 数据数组[行];
}
else if((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected))
{
return 数据数组[行];
}
else if(!isGenderGroupFieldSelected)
{
return 数据数组[行];
}
return 0;
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
if (isBloodGroupFieldSelected) {
bloodGroup.text = 数据数组[行];
}
else if((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected))
{
txtField1.text = 数据数组[行];
}
else if(!isGenderGroupFieldSelected)
{
txtField2.text=数据数组[行];
}
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
if (textField == bloodGroup) {
isBloodGroupFieldSelected = 是；
}
else if (textField == txtField1){
isBloodGroupFieldSelected = 否；
isGenderGroupFieldSelected = 是；
}
else if (textField == txtField2) {
isGenderGroupFieldSelected = 否；
isBloodGroupFieldSelected = 否；
}
[myPickerView reloadAllComponents];
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
if (textField == bloodGroup) {
isBloodGroupFieldSelected = 是；
}else if (textField == txtField1){
isBloodGroupFieldSelected = 否；
isGenderGroupFieldSelected = 是；
}
else if (textField == txtField2){
isGenderGroupFieldSelected = 否；
isBloodGroupFieldSelected = 否；
}
[myPickerView reloadAllComponents];
}
- (void)viewWillAppear:(BOOL)动画{
[超级viewWillAppear:animated];
[myPickerView selectRow:0 inComponent:0 animated:YES];
}
-(void)完成:(id)发件人
{
[myPickerView selectRow:0 inComponent:0 animated:YES]; // 2020 年 4 月 27 日
[bloodGroup resignFirstResponder];
[txtField1 resignFirstResponder];
[txtField2 resignFirstResponder];
}