drawer

Open the drawer when I click the icon react navigation version 5

由 此生再无相见时 提交于 2020-08-10 20:44:30
问题 I want to open the drawer when I click the icon in the headerLeft part, I also have try to this.props.navigation.dispatch but is gives an error also navigation.dispatch gives error The code below does not gives errors but is does not open the drawer import { DrawerActions } from '@react-navigation/native'; import { NavigationContainer } from '@react-navigation/native'; import { createDrawerNavigator } from '@react-navigation/drawer'; import { createStackNavigator } from '@react-navigation

createDrawerNavigator | undefined is not a function

由 安稳与你 提交于 2020-06-29 04:44:05
问题 I'm trying using React Native to create a drawer navigator at an Android project, but i'm gettin a "undefined is not a function", like in this print here is the code: import 'react-native-gesture-handler'; import React, { useEffect } from 'react'; import { View, ActivityIndicator } from 'react-native'; import { createDrawerNavigator } from '@react-navigation/drawer'; import AsyncStorage from '@react-native-community/async-storage'; import { NavigationContainer, DefaultTheme as

How to stop react native animation inside 'onPanResponderMove' when a certain condition is met?

由 守給你的承諾、 提交于 2020-06-27 16:01:24
问题 I have a drawer that hovers over a view. The user can vertically drag up to open and drag down to close it. I have the opening and closing part working smoothly. What I have a problem with is making sure that the drag animation stops once it reaches about 200 pixels from the top of the phone screen and also not drag beyond 100 pixels from the bottom of the screen. It's an absolute element and I have used Animated.ValueXY() . I know that I need to stop animation in the onPanResponderMove: (e,

How to make top navigation drawer with flutter?

由 大兔子大兔子 提交于 2020-06-17 14:06:09
问题 I'm trying to open a navigation drawer like bottom sheet, on appBar button click . I browsed it for but couldn't get any solution. See below image: The Code I was trying: return Scaffold( backgroundColor: Colors.transparent, body: Container( height: MediaQuery.of(context).size.height/2, //constraints: BoxConstraints.expand(), decoration: BoxDecoration( color: Color.fromARGB(255, 255, 255, 255), ), ) ); but background is black not able to see partial view of previous page. 回答1: You can see an

How to hide drawer in flutter after changing Scaffold.body value

由 家住魔仙堡 提交于 2020-05-25 23:51:03
问题 I am using the method in this question to change the body of a Scaffold in flutter: Flutter Drawer Widget - change Scaffold.body content The method described works perfectly. Now I would like just the drawer to automatically close after the users taps on one of the items. I tried using the Navigator.pop() method, but it pops the entire screen, not just the drawer. It leaves me with a totally black screen. Any suggestions? 回答1: Are you using exactly Navigator.of(context).pop() ? I cannot

How to hide drawer in flutter after changing Scaffold.body value

由 删除回忆录丶 提交于 2020-05-25 23:49:20
问题 I am using the method in this question to change the body of a Scaffold in flutter: Flutter Drawer Widget - change Scaffold.body content The method described works perfectly. Now I would like just the drawer to automatically close after the users taps on one of the items. I tried using the Navigator.pop() method, but it pops the entire screen, not just the drawer. It leaves me with a totally black screen. Any suggestions? 回答1: Are you using exactly Navigator.of(context).pop() ? I cannot

How to hide drawer in flutter after changing Scaffold.body value

由 帅比萌擦擦* 提交于 2020-05-25 23:47:41
问题 I am using the method in this question to change the body of a Scaffold in flutter: Flutter Drawer Widget - change Scaffold.body content The method described works perfectly. Now I would like just the drawer to automatically close after the users taps on one of the items. I tried using the Navigator.pop() method, but it pops the entire screen, not just the drawer. It leaves me with a totally black screen. Any suggestions? 回答1: Are you using exactly Navigator.of(context).pop() ? I cannot

React Navigation5.0系列三：Drawer navigation的使用

由 ↘锁芯ラ 提交于 2020-05-04 20:19:40
首先祝大家五四青年节及五一假期快乐。 在前面系列文章中我们了解5.0最新版本堆栈导航和选项卡导航的用法，今天我们来看看抽屉导航的使用方法。 React Navigation5.0系列一：StackNavigator的使用 React Navigation5.0系列二：TabNavigation的使用 @[toc] 安装 yarn add @react-navigation/drawer 使用 1.导入对应的组件 import { createDrawerNavigator } from '@react-navigation/drawer' 2.创建两个页面 const SettingsScreen = ({ navigation }) => { return ( <View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}> <Text>SettingScreen</Text> <Button title="Go to Details" onPress={() => navigation.navigate('Home')} /> </View> ) } const HomeScreen = ({ navigation }) => { return ( <View style={{ flex: 1,

[Flutter] 写第一个 Flutter app，part1 要点

由 十年热恋 提交于 2020-04-27 19:22:59
模拟器中调试元素的布局： 　　Android Studio 右侧边栏 Flutter Inspector，选择 Toggle Debug Paint 打开。 格式化代码： 　　编辑器中右键 Reformat Code with dartfmt。 使用外部功能包（https://pub.dartlang.org/flutter）： 　　把外部包名加到 pubspec.yaml 的 dependencies 依赖中，运行 flutter packages get 安装，代码中 import 进来使用。 例子内容解读（https://flutter.io/docs/get-started/codelab）： 　　StatelessWidget 子 Widget 实现 build 方法，Stateless widget 是不变的，意思是它们的属性不能变 - 所有的值都是 final。 　　StatefulWidget 子 Widget 实现 createState 方法；Stateful widget 维护着 widget 生命周期内可能改变的状态。 　　　　实现一个 stateful widget 需要至少两个 class： 　　　　1）一个创建了 State 类实例的 StatefulWidget 类。 　　　　2）一个 State 类。 // 我们使用了一个 RandomWords

Qt中子窗口全屏显示与退出全屏

由 醉酒当歌 提交于 2020-04-27 05:23:06
在Qt开发中偶尔遇到子窗口全屏显示和退出全屏的功能需求，是一种比较正常的情况，首先，我们需要知道子窗口全屏显示与退出全屏主要会调用的方法有哪些，下面将列举此过程主要调用的方法： isFullScreen()；判断窗口当前是处于全屏状态还是非全屏状态 setWindowFlags(Qt::WindowFlags type)；设置窗口属性 showFullScreen()；设置窗口全屏显示 showNormal()；设置窗口恢复原来显示（Restores the widget after it has been maximized or minimized.） 核心代码 下面对Qt::WindowFlags类型做一个大致的介绍： enum Qt::windowType flags Qt::WindowFlags 此枚举类型用于为窗口小部件指定各种窗口系统属性。它们相当不寻常，但在少数情况下是必要的。 其中一些标志取决于底层窗口管理器是否支持它们。主要类型有： Qt::Widget：这是QWidget的默认类型。如果它们有父级，这种类型的部件是子部件，如果没有父控件，则为独立窗口。 Qt::Window：表示小部件是一个窗口，无论窗口小部件是否具有父控件，通常具有窗口系统框架和标题栏。 请注意，如果部件没有父控件，则无法取消设置此标记（即如果存在父控件，则可以取消此标记，否则
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