state

UWP page state manage

由 南笙酒味 提交于 2019-11-28 11:46:51
I want to learn how to manage the state of a page between navigation. for example a navigate onto page1 and then i navigate to page2, but when i navigate back to page1, the UI elements must already be there with the same data as before and they must not be re-initialized or data must not be binded again by the compiler. Also what I can do to manage state of whole application such that, I terminate the app and then when i launch it next time, the same state is already there as last time. can i apply it on whole application? or what if I only want to apply it on a few pages? any help would be

WinAPI: How to get the caps lock state?

由 假装没事ソ 提交于 2019-11-28 11:15:53
How can get whether Caps Lock is on or off? I tried to search it but all I'm finding is how to toggle or turn it on/off which is exactly opposite of what I'm looking for. I'm trying to do that in both C++ and Delphi. Please help You want the GetKeyState() function: http://msdn.microsoft.com/en-us/library/ms646301(VS.85).aspx with the VK_CAPITAL key code. Rest of the virtual key codes are here: http://technet.microsoft.com/en-us/subscriptions/index/dd375731(v=vs.85).aspx I found this link and the code snippet below that might help you if ((GetKeyState(VK_CAPITAL) & 0x0001)!=0) AfxMessageBox(

The “state” param from the URL and session do not match

由 拜拜、爱过 提交于 2019-11-28 10:50:36
In facebook documantion require('include/facebook/autoload.php'); //SDK directory $fb = new Facebook\Facebook([ 'app_id' => '***********', 'app_secret' => '***********************' ]); $helper = $fb->getRedirectLoginHelper(); $permissions = ['email', 'public_profile']; // optional $loginUrl = $helper->getLoginUrl('http://www.meusite.com.br/login-callback.php', $permissions); When direct it to the url $loginUrl, the return is: Facebook SDK returned an error: Cross-site request forgery validation failed. The "state" param from the URL and session do not match I had the same error. The problem

onRestoreInstanceState not called when screen wake up?

由 放肆的年华 提交于 2019-11-28 10:14:49
问题 I've wrote all the needed code to save my Activity state (a simple form with EditText widgets) and restore it on phone rotation and it works great. My problem is on managing screen on/off changes: when going off, onSaveInstanceState is called and everything goes well. On screen on, onRestoreInstanceState is not called, neither onCreate, only onResume. Am I missing something? 回答1: The onRestoreInstanceState method is called only if the activity process is killed(due to memory constraints or

Angular 5 Ngrx State lost during browser page refresh

由 穿精又带淫゛_ 提交于 2019-11-28 09:38:28
问题 I am new to angular 5 and Ngrx, some how i managed to implement a login functionality, once login is success i am taking the user to dashboard. But if I refresh the page the user state seems to be lost. How to make the user state persistent even the page reloads ? 回答1: How to make the user state persistent even the page reloads? as @user184994 Mentioned NGRX state is only held in memory. If you want it to persist between page refreshes Go for LocalStorage or sessionStorage localStorage and

Angular UI Router - Dynamic TemplateURL

由 喜欢而已 提交于 2019-11-28 09:24:58
问题 I am building a static HTML website with angular UI router for navigation. I basically have one ui-view with multiple (10+) html templates (pages) to load into that view. All my template pages are in a directory called 'pages'. So i basically want to know if we can define just one state in the $stateProvider to assign multiple template urls dynamically instead of writing different states for each HTML template page (like mentioned below). $stateProvider .state('home', { url: '/home',

Why Flutter GlobalKey's currentState is NULL when accessed from other file

由 穿精又带淫゛_ 提交于 2019-11-28 06:12:31
问题 Here's my code: import 'package:flutter/material.dart'; void main() { runApp(new MyStatefulApp(key: App.appStateKey)); } /// Part [A]. No difference when appStateKey is defined as variable. class App { static final GlobalKey<MyAppState> appStateKey = new GlobalKey<MyAppState>(); } /// Part [B] class MyStatefulApp extends StatefulWidget { MyStatefulApp({Key key}) :super(key: key); @override MyAppState createState() => new MyAppState(); } class MyAppState extends State<MyStatefulApp> { int

Android: Saving a state during Android lifecycle

由 强颜欢笑 提交于 2019-11-28 05:28:42
问题 I am refering to http://developer.android.com/reference/android/app/Activity.html. I have an activity which can be "interrupted" by the user, e.g. the user opens the menu to call the preferences screen. When calling the preference screen onSaveInstanceState(Bundle) is called and I can save my data. That's fine so far. But upon pressing the back button onRestoreInstanceState(Bundle savedInstanceState) is NOT called. So how can I save my state? Do I have to do it when calling the new activity?

Setting view's name from decorator - Angular Ui Router

由 我的梦境 提交于 2019-11-28 05:06:21
问题 I'm defining my states in this way: var parentStates = [ {state : 'home', url: '/home', template: 'home.html'}, {state : 'about', url: '/about', template: 'about.html'}, {state : 'contact', url: '/contact', template: 'contact.html'}, {state : 'home.data', url: '', template: 'data.html'}, {state : 'about.data', url: '', template: 'data.html'}, {state : 'contact.data', url: '', template: 'data.html'} ]; $urlRouterProvider.otherwise("/main/home"); $stateProvider .state("main", { abtract: true,

QTcpSocket state always connected, even unplugging ethernet wire

由 痞子三分冷 提交于 2019-11-28 04:43:20
I have a QTcpSocket and I am reading into a loop. Each time a full packet has been read, or there has been an error, I manually check the status of the socket inside the loop, with: while(true){ if(socket->state()==QAbstractSocket::ConnectedState){ qDebug()<<"Socket status: connected. Looking for packets..."; if(socket->waitForReadyRead(2000)){ //... } When I execute de program, once connected and the loop starts, it always prints qDebug()<<"Socket status: connected. Looking for packets..." ; and then stucks at waitForReadyRead until some data is ready to be read. The problem is that
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