我有一个表格视图，其中包含已保存的数据。当我点击表格视图单元格时，它会导航到详细页面，其中包含一个包含3个组件的选择器视图，一个文本字段和一个提交按钮。我的问题是当我点击表格视图单元格时，它需要获取具有所选下拉值的数据。例如，我们有proj1，proj2，proj3，proj4，当我们点击tableview单元格时，它需要将proj3显示为选定值。这是我的代码。
-(void)loadprojects
{
NSString *post =[[NSString alloc] initWithFormat:@"username=%@",[self.projectpicker dataSource]];
//NSString *pickername = [self.projectpicker dataSource];
//NSString *key = @"Da9s^a2Rp4na6R$ikiAsav3Is@niWsa";
//NSString *encrypteduname = [AESCrypt encrypt:pickername password:key];
// Code for Project loading
NSString *projecturltemp = @"http://test.com/GetAssignedProjects";
NSString *str = [[NSUserDefaults standardUserDefaults] valueForKey:@"UserLoginIdSession"];
NSString *usrid = str;
NSString * projecturl =[NSString stringWithFormat:@"%@/%@",projecturltemp,usrid];
NSURL *url = [NSURL URLWithString:projecturl];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:url];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/projectpicker" forHTTPHeaderField:@"Accept"];
[request setValue:@"application/jsonArray" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postData];
NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url
cachePolicy:NSURLRequestReturnCacheDataElseLoad
timeoutInterval:30];
// Make synchronous request
urlData = [NSURLConnection sendSynchronousRequest:urlRequest
returningResponse:&response
error:&error];
if ([response statusCode] >= 200 && [response statusCode] < 300)
{
NSString *responseData = [NSJSONSerialization JSONObjectWithData:urlData
options:NSJSONReadingAllowFragments error:&error];
NSArray *entries = [NSJSONSerialization JSONObjectWithData:[responseData dataUsingEncoding:NSUTF8StringEncoding]
options:0 error:&error];
if(!entries)
{
NSLog(@"Error : %@", error);
}
else{
for (NSDictionary *entry in entries) {
projID = [entries valueForKey:@"ID_PROJECT"];
projectNames = [entries valueForKey:@"NM_PROJECT"];
}
randomSelection=[BenefitNames arrayByAddingObjectsFromArray:projectNames];
randomSelectionID = [benID arrayByAddingObjectsFromArray:projID];
//NSLog(@"Error : %@", projectNames);
//NSLog(@"projID : %@", projID);
_projectpicker.delegate = self;
_projectpicker.dataSource = self;
}
} else {
}
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 3;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
int numberofRows = 0;
switch (component) {
case 0:
[pickerView reloadComponent:1];
numberofRows = [randomSelection count];
break;
case 1:
[pickerView reloadComponent:2];
numberofRows = [taskNames count];
break;
case 2:
numberofRows = [subtaskNames count];
break;
}
return numberofRows;
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
NSString *title;
if(component == 0) {
[pickerView reloadComponent:1];
[pickerView reloadComponent:2];
title = [randomSelection objectAtIndex:row];
}
else if (component == 1){
[pickerView reloadComponent:2];
title = [taskNames objectAtIndex:row];
}
else{
title = [subtaskNames objectAtIndex:row];
}
return title;
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
//NSLog(@"%@",myArrayString);
//NSLog(@"%@",myTaskArrayString);
if(component == 0){
NSNumber *myProjectArrayString = [randomSelectionID objectAtIndex:row];
lblProjects.text = [NSString stringWithFormat:@"%@",myProjectArrayString];
lblProjects.hidden = YES;
lblBenefitsLeaves.text = [randomSelection objectAtIndex:[pickerView selectedRowInComponent:0]];
hdnlblProjects.text = [randomSelection objectAtIndex:[pickerView selectedRowInComponent:0]];
rownoedit = row;
[pickerView reloadComponent:1];
[pickerView reloadComponent:2];
[self loadtasks];
}
//lblProjects.hidden = YES;
else if(component == 1)
{
NSNumber *myTaskArrayString = [taskID objectAtIndex:row];
lblTasks.text = [NSString stringWithFormat:@"%@",myTaskArrayString];
lblTasks.hidden = YES;
hdnlblTasks.text = [taskNames objectAtIndex:[pickerView selectedRowInComponent:1]];
[pickerView reloadComponent:2];
[self loadsubtasks];
}
else if(component == 2)
{
NSNumber *mysubtaskArrayString = [subtskID objectAtIndex:row];
lblSubTasks.text = [NSString stringWithFormat:@"%@",mysubtaskArrayString];
NSLog(@"%@",lblSubTasks.text);
lblSubTasks.hidden = YES;
hdnlblSubTasks.text = [subtaskNames objectAtIndex:[pickerView selectedRowInComponent:2]];
//lblTasks.text = [taskNames objectAtIndex:[pickerView selectedRowInComponent:1]];
//lblTasks.text = [NSString stringWithFormat:@"%@", myTaskArrayString];
//lblSubTasks.text = [subtaskNames objectAtIndex:[pickerView selectedRowInComponent:2]];
}
}
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