- (void)dealloc { [LoginManager.sharedManager removeObserver: self forKeyPath: @"loggingIn" context: ObservationContext]; [NSNotificationCenter.defaultCenter removeObserver: self]; } - (void)updateLogInButton { BOOL textFieldsNonEmpty =self.usernameTextField.text.length > 0 && self.passwordTextFi...
AI代码解释 SubmitedUsersViewModel DataContext{get;set;}privatevoidForm1_Load(object sender,EventArgs e){base.BindDataControls(this.Controls);base.BindCommandControls(this.button1,DataContext.SubmitCurrentUsers);base.BindCommandControls(this.button2,DataContext.UpdateUser);base.BindCommandControls(this.button...
注册观察者后，观察者被可观察对象强持有@protocol Observable <NSObject>/// 值@property(strong, nonatomic, nullable) id value;/// 添加观察者-(void)addObserver:(id<Observer>)observer;/// 移除观察者-(void)removeObserver:(id<Observer>)observer;@endObserver协议定义了观察者的基本特征：可以通过访问subs...
publicvoidDoSomethingAsynchronous(){varloopIndex =0; ThreadPool.QueueUserWorkItem( o => {// This is a background operation!while(_condition) {// Do something// ...// Sleep for a whileThread.Sleep(500); } }); } 线程间能够通信 当一个线程需要与另一个线程通信时,需要采取一些防范措施。例如...
public void onClick(View v) { switch (v.getId()) { case .btn_go: weatherModel.getWeather(cityNOInput.getText().toString().trim(), this); break; } } @Override public void onSuccess(Weather weather) { displayResult(weather); }
public void setImgurl(String imgurl) { this.imgurl = imgurl; } public Info getInfo() { return info; } public void setInfo(Info info) { this.info = info; } public static class Info{ private int width; private int height; private String type; ...
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_login); tvResult = findViewById(R.id.tv_result); TextView tvAccount = findViewById(R.id.tv_account); TextView tvPwd = findViewById(R.id.tv_pwd); ...
void observer(); void loadData(); @override Widget build(BuildContext context); @override void dispose() { super.dispose(); viewModel.release(); } } 示例代码 view 页面 classUserListPageextendsStatefulWidget{ @override State<StatefulWidget> createState(...
{ mView = view; mModel = model; } @Override public void loadData() { String data = mModel.getData(); mView.showData(data); } } public interface MainContract { interface View { void showData(String data); } interface Presenter { void loadData(); } } public class Model { public ...
privatevoidSetSchema(FullNameSchema schema){ _schema = schema; Messenger.Default.Send(newChangeFullNameSchemaMessage(_schema)); } 由于Messenger 类采用分离方式操作,所以很容易将其从 MainViewModel 移入后面的 Settings 类之类的位置。 设置导航 得益于每个页面所公开的 NavigationService 属性,从视图的代码...