I Tried with ASIHttpRequest but found that it will not work in iOS 6.0 because ARC is not supported in ASIHttpRequest. And googled a lot for the POST method connection to PHP. So finally i found the NSMutableURLRequest method for safe and reliable. So here is the method to call a simple Login Feature.
1. First Declare NSMutableData as follow
@interface LoginViewController ()
@property (nonatomic, strong) NSMutableData *responseData;
@end
2. Now initiate this Data in viewDidLoad as follow
self.responseData = [NSMutableData data];
3. Send you User id and password to JSON by following method
-(void)connectForCredential:(NSString *)userId andPassword:(NSString *)userPassword
{
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.urlname.com/login"]];
NSString *postString = [NSString stringWithFormat:@"username=%@&password=%@",userId, userPassword];
[request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
NSURLConnection *connection= [[NSURLConnection alloc] initWithRequest:request
delegate:self];
if (connection) {
}
else {}
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[self.responseData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[self.responseData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
printf("Data Failure");
}
// Following function will show you the result mainly
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
printf("connectionDidFinishLoading");
printf("\nSucceeded! Received %d bytes of data\n",[self.responseData length]);
// convert to JSON
NSError *myError = nil;
NSDictionary *res = [NSJSONSerialization JSONObjectWithData:self.responseData options:NSJSONReadingMutableLeaves error:&myError];
// show all values
for(id key in res) {
id value = [res objectForKey:key];
NSString *keyAsString = (NSString *)key;
NSString *valueAsString = (NSString *)value;
NSLog(@"\nkey: %@", keyAsString);
NSLog(@"value: %@", valueAsString);
}
// extract specific value...
NSArray *results = [res objectForKey:@"results"];
for (NSDictionary *result in results) {
NSString *icon = [result objectForKey:@"icon"];
printf("icon: %@", icon);
}
}
