我现在有一个接收数据包的UDPServer,代码在下面。基本上,当收到数据包时会发生什么?切换按钮应该是被宣誓的。是的,但是视图只在我旋转手机或按菜单按钮时才会更新。我认为这是因为没有重新绘制视图。我还觉得这与我正在使用的线程和一个无限循环有关,而且UI线程从来没有见过view ()来刷新视图。UDPServer应该使用异步任务吗?不确定这是否是实现UDPServer的最佳方法。
public class UDPServer extends Thread {
public static final int SERVERPORT = 4444;
private boolean i
我在AppDelegate.m中打开数据库连接
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
我就快接近applicationWillTerminate了
- (void)applicationWillTerminate:(UIApplication *)application
{
/*
Called when the application is about to terminate.
Save
通常我会用下面的代码开始一个活动:
Intent i = new Intent(context, MyActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
但是,我如何启动该活动,使其留在后台?
我厌倦了甲骨文的例子,用android从URLConnection中读取,这是代码
``try{
URL oracle = new URL("http://www.oracle.com/");
Proxy proxy = new Proxy(Proxy.Type.HTTP,newInetSocketAddress("192.168.3.254",3128)); // or whatever your proxy is
URLConnection yc = oracle.openConnect
考虑一下当用户单击按钮时运行的ViewController中的以下代码:
var myBlock = {
[weak self] in
let queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0)
dispatch_async(queue) {
// Some heavy lifting code with final UI Feedback
let success = true
if(success) {
if let