Question

请教在block中如何给实例变量赋值

Answer 1

@interface AllBooksViewController ()

@end

@implementation AllBooksViewController

@synthesize bookList;
@synthesize searchResult;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = GREY_BACKGROUND;

[self sendHTTPRequest];
NSLog(@"# searchResult: %@", self.searchResult);
NSLog(@"# bookList: %@", self.bookList);
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}

// HTTPRequest
-(void) sendHTTPRequest {
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:[userDefaults stringForKey:@"username"], @"username", [userDefaults stringForKey:@"password"], @"password", EWB_SEARCH, @"function", nil];

[[SVHTTPClient sharedClient] setBasePath:BASEURL];
[[SVHTTPClient sharedClient] setSendParametersAsJSON:YES];
[[SVHTTPClient sharedClient] POST:@"/post/" parameters:dic
completion:^(id response, NSHTTPURLResponse *urlResponse, NSError *error) {

if ([[response objectForKey:@"status"] integerValue] == 1) {

NSLog(@"# Response: %@", [response objectForKey:@"ewb_search_result"]);
// 出问题的地方，searchResult 在block内可以被付值，
self.searchResult = [response objectForKey:@"ewb_search_result"];

} else {
NSLog(@"The funtion ewb_search is failed!");
}
}];

}

@end