我的Picker视图项目，任务和子任务中有三个组件。我的要求是选择我想要分别显示项目ID的项目以及与子任务类似的项目。我得到了项目ID，我不知道如何将此项目ID附加到任务URL以加载相应的任务。这是我的代码
NSArray *projectNames;
NSArray *taskNames;
NSArray *subtaskNames;
NSArray * projID;
NSArray * taskID;
NSArray * subtskID;
@synthesize lblProjects;
@synthesize lblTasks;
@synthesize lblSubTasks;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
lblProjects.text = [[NSString alloc] init];
}
return self;
}
- (id)init
{
// since we don't wanna re-implement allocation and instantiation for every
// initializer, we call the 'designated initializer' with some default values,
// in this case the default nibName and bundle are nil.
return [self initWithNibName:nil bundle:nil];
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self loadprojects];
[self loadtasks];
[self loadsubtasks];
}
-(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 *projecturl = @"http://exampleId.com/GetAssignedProjects/313";
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"];
}
NSLog(@"projID : %@", projID);
_projectpicker.delegate = self;
_projectpicker.dataSource = self;
}
} else {
}
}
-(void)loadtasks
{
// Code for Tasks loading
NSString *post =[[NSString alloc] initWithFormat:@"username=%@",[self.projectpicker dataSource]];
NSString *nsTaskurllocal = @"http://exampleId.com/GetAssignedTasks/";
NSString *usrid = @"313";
NSString * productIdString =[NSString stringWithFormat:@"%@/%@",[lblProjects.text self],usrid];
NSLog(@"aString : %@", productIdString);
NSString *aString = [nsTaskurllocal stringByAppendingString:productIdString];
NSURL *nstaskurl = [NSURL URLWithString:aString];
NSLog(@"nstaskurl : %@", nstaskurl);
NSData *nstaskpostData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *nstaskpostLength = [NSString stringWithFormat:@"%lu", (unsigned long)[nstaskpostData length]];
NSMutableURLRequest *nstaskrequest = [[NSMutableURLRequest alloc] init];
[nstaskrequest setURL:nstaskurl];
[nstaskrequest setHTTPMethod:@"POST"];
[nstaskrequest setValue:nstaskpostLength forHTTPHeaderField:@"Content-Length"];
[nstaskrequest setValue:@"application/projectpicker" forHTTPHeaderField:@"Accept"];
[nstaskrequest setValue:@"application/jsonArray" forHTTPHeaderField:@"Content-Type"];
[nstaskrequest setHTTPBody:nstaskpostData];
NSError *nstaskerror = [[NSError alloc] init];
NSHTTPURLResponse *nstaskresponse = nil;
NSData *nstaskurlData=[NSURLConnection sendSynchronousRequest:nstaskrequest returningResponse:&nstaskresponse error:&nstaskerror];
NSURLRequest *nstaskurlRequest = [NSURLRequest requestWithURL:nstaskurl
cachePolicy:NSURLRequestReturnCacheDataElseLoad
timeoutInterval:30];
// Make synchronous request
nstaskurlData = [NSURLConnection sendSynchronousRequest:nstaskurlRequest
returningResponse:&nstaskresponse
error:&nstaskerror];
if ([nstaskresponse statusCode] >= 200 && [nstaskresponse statusCode] < 300)
{
NSString *nstaskresponseData = [NSJSONSerialization JSONObjectWithData:nstaskurlData
options:NSJSONReadingAllowFragments error:&nstaskerror];
NSArray *nstaskentries = [NSJSONSerialization JSONObjectWithData:[nstaskresponseData dataUsingEncoding:NSUTF8StringEncoding]
options:0 error:&nstaskerror];
if(!nstaskentries)
{
NSLog(@"Error : %@", nstaskerror);
}
else{
for (NSDictionary *nstaskentry in nstaskentries) {
taskID = [nstaskentries valueForKey:@"ID_TASK"];
taskNames = [nstaskentries valueForKey:@"TASk_NAME"];
//NSLog(@"Error : %@", taskNames); //log to see the result in console // by Kiran
}
_projectpicker.delegate = self;
_projectpicker.dataSource = self;
}
} else {
}
}
-(void)loadsubtasks
{
// Code for Sub Tasks loading
NSString *post =[[NSString alloc] initWithFormat:@"username=%@",[self.projectpicker dataSource]];
NSString *nsSubTaskurl = @"http://exampleId.com/GetAssignedSubTasks/164/313";
NSURL *nssubtaskurl = [NSURL URLWithString:nsSubTaskurl];
NSData *nssubtaskpostData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *nssubtaskpostLength = [NSString stringWithFormat:@"%lu", (unsigned long)[nssubtaskpostData length]];
NSMutableURLRequest *nssubtaskrequest = [[NSMutableURLRequest alloc] init];
[nssubtaskrequest setURL:nssubtaskurl];
[nssubtaskrequest setHTTPMethod:@"POST"];
[nssubtaskrequest setValue:nssubtaskpostLength forHTTPHeaderField:@"Content-Length"];
[nssubtaskrequest setValue:@"application/projectpicker" forHTTPHeaderField:@"Accept"];
[nssubtaskrequest setValue:@"application/jsonArray" forHTTPHeaderField:@"Content-Type"];
[nssubtaskrequest setHTTPBody:nssubtaskpostData];
NSError *nssubtaskerror = [[NSError alloc] init];
NSHTTPURLResponse *nssubtaskresponse = nil;
NSData *nssubtaskurlData=[NSURLConnection sendSynchronousRequest:nssubtaskrequest returningResponse:&nssubtaskresponse error:&nssubtaskerror];
NSURLRequest *nssubtaskurlRequest = [NSURLRequest requestWithURL:nssubtaskurl
cachePolicy:NSURLRequestReturnCacheDataElseLoad
timeoutInterval:30];
// Make synchronous request
nssubtaskurlData = [NSURLConnection sendSynchronousRequest:nssubtaskurlRequest
returningResponse:&nssubtaskresponse
error:&nssubtaskerror];
if ([nssubtaskresponse statusCode] >= 200 && [nssubtaskresponse statusCode] < 300)
{
NSString *nssubtaskresponseData = [NSJSONSerialization JSONObjectWithData:nssubtaskurlData
options:NSJSONReadingAllowFragments error:&nssubtaskerror];
NSArray *nssubtaskentries = [NSJSONSerialization JSONObjectWithData:[nssubtaskresponseData dataUsingEncoding:NSUTF8StringEncoding]
options:0 error:&nssubtaskerror];
if(!nssubtaskentries)
{
NSLog(@"Error : %@", nssubtaskerror);
}
else{
for (NSDictionary *nssubtaskentry in nssubtaskentries) {
subtaskNames = [nssubtaskentries valueForKey:@"SUBTASK_NAME"];
//NSLog(@"Error : %@", subtaskNames);
}
_projectpicker.delegate = self;
_projectpicker.dataSource = self;
}
} else {
}
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 3;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
int numberofRows;
switch (component) {
case 0:
numberofRows = [projectNames count];
break;
case 1:
numberofRows = [taskNames count];
break;
case 2:
numberofRows = [subtaskNames count];
break;
}
return numberofRows;
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
NSString *title;
switch (component) {
case 0:
title = [projectNames objectAtIndex:row];
break;
case 1:
title = [taskNames objectAtIndex:row];
break;
case 2:
title = [subtaskNames objectAtIndex:row];
break;
}
return title;
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
NSNumber *myProjectArrayString = [projID objectAtIndex:row];
//NSNumber *myTaskArrayString = [taskID objectAtIndex:row];
//NSLog(@"%@",myArrayString);
//NSLog(@"%@",myTaskArrayString);
lblProjects.text = [NSString stringWithFormat:@"%@",myProjectArrayString];
//lblProjects.hidden = YES;
lblTasks.text = [taskNames objectAtIndex:[pickerView selectedRowInComponent:1]];
//lblTasks.text = [NSString stringWithFormat:@"%@", myTaskArrayString];
lblSubTasks.text = [subtaskNames objectAtIndex:[pickerView selectedRowInComponent:2]];
}
简单说话我想在项目ID的帮助下加载任务URL
先谢谢 基兰库马尔