Question

从用户收到图片后，将它们放入数组中，从main调用animate（）方法，此方法包含Asynktask。我怎样才能完成这个AsyncTask？这是我的代码：

@property (nonatomic, strong) MCSession *peerSession;

- (void)startSession {
    MCPeerID *peerId = [[MCPeerID alloc] initWithDisplayName:[[UIDevice currentDevice] name]];
    self.peerSession = [[MCSession alloc] initWithPeer:peerId];
    self.peerSession.delegate = self;

    MCAdvertiserAssistant *advertiser = [[MCAdvertiserAssistant alloc] initWithServiceType:@"myapp" discoveryInfo:nil session:self.peerSession];
    [advertiser start];
}

- (void)openBrowser {
    MCBrowserViewController *peerBrowser = [[MCBrowserViewController alloc] initWithServiceType:@"myapp" session:self.peerSession];
    peerBrowser.delegate = self;
    [self.appDelegate.mainViewController presentViewController:peerBrowser animated:TRUE completion:nil];
}

Answer 1

从您的代码中，我猜您想要的是定期更改您在ImageView中显示的图像。我建议您更改代码以使用Timer：

private Timer mTimer;

private void startCarousel(){
    mTimer = new Timer();
    TimerTask timerTask = new TimerTask() {
        public void run() {
            // Your periodic task...
        }
    };

    mTimer.schedule(timerTask, 1000, 500);
}

private void stopCarousel(){
    if(mTimer != null){
        mTimer.cancel();
        mTimer.purge();
    }
}

完成AsyncTask时出错

1 个答案: