scrollview

问题 I'm trying to implement scrollview using latest xcode. I have content that reaches 'out of bounds' and when I run the simulator, I'm unable to scroll down to see the rest of my content. My hierarchy / constraints are as follows.. Are there constraints you need to have on the subviews within the 'contentViiew' ? I don't have additional code in my view controller that manipulates the scrollview. using Xcode -v 11 & Swift -v 5 <- if this makes a difference 回答1: Please clear all constraints on

问题 I need to find out the exact moment when my ScrollView stops moving. Is that possible with SwiftUI? Here would be an equivalent for UIScrollView . I have no idea after thinking a lot about it... A sample project to test things out: struct ContentView: View { var body: some View { ScrollView { VStack(spacing: 20) { ForEach(0...100, id: \.self) { i in Rectangle() .frame(width: 200, height: 100) .foregroundColor(.green) .overlay(Text("\(i)")) } } .frame(maxWidth: .infinity) } } } Thanks! 回答1:

问题 I need to find out the exact moment when my ScrollView stops moving. Is that possible with SwiftUI? Here would be an equivalent for UIScrollView . I have no idea after thinking a lot about it... A sample project to test things out: struct ContentView: View { var body: some View { ScrollView { VStack(spacing: 20) { ForEach(0...100, id: \.self) { i in Rectangle() .frame(width: 200, height: 100) .foregroundColor(.green) .overlay(Text("\(i)")) } } .frame(maxWidth: .infinity) } } } Thanks! 回答1:

问题 I have the following example (tested on an iPhone X, iOS 11): import 'package:flutter/material.dart'; void main() => runApp(new MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return new MaterialApp( title: 'Flutter Demo', theme: new ThemeData( primarySwatch: Colors.blue, ), home: new MyHomePage(title: 'Flutter Demo Home Page'), ); } } class MyHomePage extends StatefulWidget { MyHomePage({Key key, this.title}) : super(key: key); final String

问题 I have the following example (tested on an iPhone X, iOS 11): import 'package:flutter/material.dart'; void main() => runApp(new MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return new MaterialApp( title: 'Flutter Demo', theme: new ThemeData( primarySwatch: Colors.blue, ), home: new MyHomePage(title: 'Flutter Demo Home Page'), ); } } class MyHomePage extends StatefulWidget { MyHomePage({Key key, this.title}) : super(key: key); final String

问题 I use Xamarin.Forms , ScrollView , I can change ScrollView.Background , but background color of scroll bar don't change. How I can do it ? Can I make a universal shared style scrollbar for all platforms? If you can not, can I make so that I could use ScrollView in Shared project Xamarin.forms but at the same time that it is displayed at on different platforms with their own style? Maybe it can be done without their own styles and somehow easier? I need only custom scrollbar color in

问题 I am receiving the error: Warning: Functions are not valid as a React child. I am writing a React Native application. interface RegisterScreenProps { navigation: NavigationContainerRef; } const RegisterScreen: FunctionComponent<RegisterScreenProps> = ({ navigation, }: RegisterScreenProps) => { const { container, headerLogo, headerTitle, body } = styles; return ( <SafeAreaView style={{ flex: 1 }}> <KeyboardAwareScrollView style={styles.container}> <View> <TextInput value={

问题 I am receiving the error: Warning: Functions are not valid as a React child. I am writing a React Native application. interface RegisterScreenProps { navigation: NavigationContainerRef; } const RegisterScreen: FunctionComponent<RegisterScreenProps> = ({ navigation, }: RegisterScreenProps) => { const { container, headerLogo, headerTitle, body } = styles; return ( <SafeAreaView style={{ flex: 1 }}> <KeyboardAwareScrollView style={styles.container}> <View> <TextInput value={

问题 I want to add some style to the my scroll indicator in vertical scrollbar use in react native.I want to make the scroll indicator more wider than default size so that the user will clearly see the scroll indicator. As well as i want to change the colors and some other stuffs in scroll indicator. How can i do so. is it possible to stlye the scroll indicator in vertical scroll view in react native.. Should be compatible in any platform too 回答1: you should add Listener on scroll then create a

问题 I want to add some style to the my scroll indicator in vertical scrollbar use in react native.I want to make the scroll indicator more wider than default size so that the user will clearly see the scroll indicator. As well as i want to change the colors and some other stuffs in scroll indicator. How can i do so. is it possible to stlye the scroll indicator in vertical scroll view in react native.. Should be compatible in any platform too 回答1: you should add Listener on scroll then create a