这篇博客说明一些使用“JimLiu-WeiboSDK”的一些关键代码段,关于“JimLiu-WeiboSDK”的使用请参考:http://blog.csdn.net/workhardupc100/article/details/6802424
1. 创建并初始化OAuthEngine
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
/// 初始化engine
if (!_engine) {
_engine = [[OAuthEngine alloc] initOAuthWithDelegate: self];
_engine.consumerKey = kOAuthConsumerKey;
_engine.consumerSecret = kOAuthConsumerSecret;
_engine.username = 如果之前认证过且保存过信息,则取出认证的用户名(其实是用户id)
}
}
2. 进行认证
- (void)Auth {
UIViewController *controller = [OAuthController controllerToEnterCredentialsWithEngine: _engine delegate: self];
if (controller) {
/** 此时表示没有认证过,则会弹出认证的WebView界面 */
[self presentModalViewController: controller animated: YES];
}
else {
/** 此时表示已认证过 */
[OAuthEngine setCurrentOAuthEngine:_engine];
}
3. 实现OAuthEngineDelegate中的方法,用户保存和获取认证过的数据
/// 保存获取的认证的数据
- (void) storeCachedOAuthData: (NSString *) data forUsername: (NSString *) username {
if (username == nil) {
return;
}
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject: data forKey:username];
[defaults synchronize];
}
/// 获取保存的认证的数据
- (NSString *) cachedOAuthDataForUsername: (NSString *) username {
if (username == nil) {
return @"";
}
return [[NSUserDefaults standardUserDefaults] objectForKey: username];
}
/// 认证失败时的回调函数
- (void) oAuthConnectionFailedWithData: (NSData *) data {
// 认证失败的处理
}
4. 认证后,发表一个微博
- (void)postNewStatus {
if (![_engine isAuthorized]) /// 判断下是否认证过,因为isAuthorized做了一些特殊处理,有必要调用
return;
[OAuthEngine setCurrentOAuthEngine:_engine]; /// 设置OAuthEngine
WeiboClient *client = [[WeiboClient alloc] initWithTarget:self
engine:[OAuthEngine currentOAuthEngine] action:@selector(postStatusDidSucceed:obj:)];
[client post:@"Hello World"];
}
/// isAuthorized的实现细节
- (BOOL) isAuthorized {
if (_accessToken.key && _accessToken.secret) return YES;
NSString *accessTokenString = [_delegate respondsToSelector: @selector(cachedOAuthDataForUsername:)] ? [(id) _delegate cachedOAuthDataForUsername: self.username] : @"";
if (accessTokenString.length) {
[_accessToken release];
_accessToken = [[OAToken alloc] initWithHTTPResponseBody: accessTokenString];
self.username = [self extractUsernameFromHTTPBody: accessTokenString];
if (_accessToken.key && _accessToken.secret)
return YES;
}
[_accessToken release]; // no access token found. create a new empty one
_accessToken = [[OAToken alloc] initWithKey: nil secret: nil];
return NO;
}