我有一个按钮“getResponse”,它在将IP地址放入UITextField中之后向服务器发出XMLRPC调用。像“getResponse”按钮一样,先让键盘退出,然后再将其键入服务器。在按钮按下后立即退出键盘
就像现在一样,如果键盘已经打开,它将调用服务器,如果找不到有效的服务器,则检索信息或错误,然后退出键盘。
我知道它可能很容易,但我不能为我的生活弄清楚。任何帮助将是伟大的,谢谢!
代码:
小时。
#import <UIKit/UIKit.h>
#import "XMLRPCResponse.h"
#import "XMLRPCRequest.h"
#import "XMLRPCConnection.h"
@interface SecondViewController : UIViewController <UIPickerViewDataSource, UIPickerViewDelegate, UITextFieldDelegate> {
IBOutlet UILabel *helloResponse;
IBOutlet UILabel *SumCountsResponse;
IBOutlet UITextField *serverInput;
IBOutlet UIPickerView *pickerView;
IBOutlet UILabel *pickerTrap;
IBOutlet UIAlertView *alert;
NSMutableArray * pickerViewArray;
int trapSelected;
}
@property(nonatomic,retain) IBOutlet UILabel *helloResponse;
@property(nonatomic,retain) IBOutlet UILabel *SumCountsResponse;
@property(nonatomic,retain) IBOutlet UITextField *serverInput;
@property(nonatomic,retain) IBOutlet UIPickerView *pickerView;
@property(nonatomic,retain) IBOutlet UILabel *pickerTrap;
@property(nonatomic,retain) IBOutlet UIAlertView *alert;
- (IBAction)getResponse:(id)sender;
- (IBAction)serverInputReturn:(id)sender;
- (IBAction)backgroundTouched:(id)sender;
@end
米。
#import "SecondViewController.h"
@implementation SecondViewController
@synthesize helloResponse;
@synthesize SumCountsResponse;
@synthesize serverInput;
@synthesize pickerView;
@synthesize pickerTrap;
@synthesize alert;
-(IBAction)serverInputReturn:(id)sender { //resign keyboard on 'return' button
[sender resignFirstResponder];
}
-(IBAction)backgroundTouched:(id)sender { //resign keyboard on background touch
[serverInput resignFirstResponder];
}
-(IBAction)getResponse: (id) sender {
[self serverInputReturn:self]; //trying to call method to resign keyboard first
//setup IP call for XMLserver
NSString *server = serverInput.text;
NSString *http = @"http://";
server = [server stringByAppendingString:@":8080/RPC2"];
server = [http stringByAppendingString:server];
//Begin calls to XMLRPC server for data return
XMLRPCRequest *requestHello = [[XMLRPCRequest alloc] initWithHost:[NSURL URLWithString:server]];
[requestHello setMethod:@"hello" withObjects:[NSArray arrayWithObjects: nil]];
NSString *resultHello = [self executeXMLRPCRequest:requestHello];
[requestHello release];
XMLRPCRequest *requestSumCounts = [[XMLRPCRequest alloc] initWithHost:[NSURL URLWithString:server]];
[requestSumCounts setMethod:@"SumCountsString" withObjects:[NSArray arrayWithObjects: nil]];
NSString *resultSumCounts = [self executeXMLRPCRequest:requestSumCounts];
[requestSumCounts release];
XMLRPCRequest *requestTrapCountX = [[XMLRPCRequest alloc] initWithHost:[NSURL URLWithString:server]];
[requestTrapCountX setMethod:@"TrapCountString" withObjects:[NSArray arrayWithObjects: [NSNumber numberWithInt:trapSelected], nil]];
NSString *resultTrapCountX = [self executeXMLRPCRequest:requestTrapCountX];
[requestTrapCountX release];
if (![resultHello isKindOfClass:[NSString class]]){
alert = [[UIAlertView alloc] initWithTitle:@"Error: Invalid Server Address" message:@"Please Check Server Address and Try Again" delegate:nil cancelButtonTitle:@"Dismiss" otherButtonTitles:nil];
[alert show];
[alert release];
}
else{
helloResponse.text = resultHello;
SumCountsResponse.text = resultSumCounts;
pickerTrap.text = resultTrapCountX;
}
}
}
- (id)executeXMLRPCRequest:(XMLRPCRequest *)req {
XMLRPCResponse *userInfoResponse = [XMLRPCConnection sendSynchronousXMLRPCRequest:req];
if ([userInfoResponse isKindOfClass:[NSError class]]) {
return alert;
}
else{
return [userInfoResponse object];
}
}
设置的UITextField的委托到的UIViewController需要更多的信息。发生什么事?你期望发生什么? – ColdLogic
该按钮正在执行调用XMLRPC服务器的代码。我首先在UITextBox中放入一个IP地址,然后按下getResponse IBAction。我希望它首先辞去键盘,然后调用XMLRPC服务器并显示数据。就像现在这样,服务器首先被调用,然后数据通过,然后键盘退出。 – swbooking