I've got a TextView inside a GridLayout and have it set to take maximum available height. That works.
But If the user presses new-line to the bottom of the TextView and more - the TextView cursor goes off the bottom of the screen instead of scrolling the TextView.
How can I get the TextView to scroll.
In iOS the TextView should be scrollable by default if you set large text in it.
However for Android you could use ScrollView and to use StackLayout for main container inside it. For further help you could review the below attached example:
main-page.xml
<Page xmlns="http://schemas.nativescript.org/tns.xsd" navigatingTo="navigatingTo">
<GridLayout columns="*" rows="auto,*">
<GridLayout row="0" col="0" columns="auto,*" rows="auto">
<Label text="header" row="0" col="0" />
</GridLayout>
<GridLayout row="1" col="0" columns="auto,*" rows="auto">
<Label text="Note" row="0" col="0" />
<ScrollView orientation="vertical" row="1" col="0" height="300" width="300" backgroundColor="green">
<StackLayout orientation="vertical" class="scroll-menu" backgroundColor="red">
<TextView text="" hint="Enter text..." />
</StackLayout>
</ScrollView>
</GridLayout>
</GridLayout>
</Page>
Related
Hello I am trying to make a stacklayout change its size (heigth) by scrolling up or down is it possible?
Yes it is possible. use this way.
<DockLayout stretchLastChild="false" class="page-background">
<GridLayout rows="30*, 70*">
<GridLayout row="0" borderBottomWidth="3" borderColor="#af152d" rows="auto" class="logo-container">
<GridLayout rows="*" row="0" class="image-container"></GridLayout>
</GridLayout>
<GridLayout row="1" rows="*" orientation="vertical">
<ScrollView row="0" orientation="vertical">
<StackLayout verticalAlignment="top">
</StackLayout>
</ScrollView>
</GridLayout>
</GridLayout>
</DockLayout>
I am trying to achieve the following:
I tried achieving this with a GridLayout and only get one of the following two things working:
The space between the Label and the StackLayout is filled (label is
stretched), but scrolling will not work when adding more labels into
the StackLayout
Scrolling will work when more labels are added into
the StackLayout, but when only one label is showed for example, the
label before the StackLayout will not stretch
Is there any way to achieve such a thing? GridLayout is not necessarily needed, but I tried several ways and could not find any way of doing this.
example code of (1)
<Page class="page dark">
<ScrollView backgroundColor="red">
<GridLayout rows="*, auto" height="100%" backgroundColor="blue">
<Label backgroundColor="green">Top Label</Label>
<StackLayout row="1" backgroundColor="green">
<Label backgroundColor="purple">Label A</Label>
<Label backgroundColor="purple">Label B</Label>
</StackLayout>
</GridLayout>
</ScrollView>
</Page>
example code of (2):
<Page class="page dark">
<ScrollView backgroundColor="red">
<GridLayout rows="*, auto" backgroundColor="blue">
<Label backgroundColor="green">Top Label</Label>
<StackLayout row="1" backgroundColor="green">
<Label backgroundColor="purple">Label A</Label>
<Label backgroundColor="purple">Label B</Label>
</StackLayout>
</GridLayout>
</ScrollView>
</Page>
I wanted to achieve this for months and I finally found a working solution, for iOS and Android.
The solution is to use FlexboxLayout instead of GridLayout. When placed in a ScrollView, FlexboxLayout will take the whole available height if it is not tall enough. If it is taller than the ScrollView, it will be scrollable.
Here is the solution for your example:
<Page class="page dark">
<ScrollView backgroundColor="red">
<FlexboxLayout
flexDirection="column"
justifyContent="space-between"
alignItems="stretch"
backgroundColor="blue"
>
<Label backgroundColor="green">Top Label</Label>
<StackLayout backgroundColor="green">
<Label backgroundColor="purple">Label A</Label>
<Label backgroundColor="purple">Label B</Label>
</StackLayout>
</FlexboxLayout>
</ScrollView>
</Page>
I'm getting:
Avoid using ListView or ScrollView with no explicit height set inside StackLayout. Doing so might results in poor user interface performance and a poor user experience.
My UI performance is very crappy on Android. It seems pretty smooth on iOS. I'm trying to figure out what could be the issue. This one error crops up for me. I'm running "nativescript-angular": "^8.0.0",
<ScrollView [visibility]="isBusy ? 'collapsed' : 'visible'" #sv>
<GridLayout rows="auto,auto,auto,auto" id="t2" columns="*" class="template_body">
<GridLayout row="0" col="0" #wv1wrapper>
<!-- <web-view id="instruction-wv" #wv1></web-view> -->
<template-text [data]="lessonDetail.instruction" *ngIf="lessonDetail.instruction" [screenwidth]="screenWidth"></template-text>
</GridLayout>
<StackLayout row="1" col="0" class="main-img">
<Image [src]="(lesson$ | async)?.thumbUrl" #imgref [data-image]="(lesson$ | async)?.imageUrl" (tap)="modalImage($event);"></Image>
</StackLayout>
<GridLayout row="2" col="0" #wvwrapper>
<!-- <web-view id="wv" #wv></web-view> -->
<template-text [data]="lessonDetail.body_text" [version]="version" *ngIf="lessonDetail.body_text" [screenwidth]="screenWidth"></template-text>
</GridLayout>
</GridLayout>
This is a template that is pulled into a router-outlet that looks like this in the master template:
<FlexboxLayout class="contentbody" [visibility]="isBusy ? 'hidden' : 'visible'" [data-template]="template_id">
<Label [text]="error" *ngIf="error"></Label>
<router-outlet></router-outlet>
</FlexboxLayout>
Also on that page, I do have a listview inside of a stacklayout.
<StackLayout row="0" >
<StackLayout class="vocab-notes">
<Label *ngIf="vocabArray" class="h3 section-title" text="Vocabulary"></Label>
<ListView [items]="vocabArray" id="vocablistview" (itemTap)="onItemTap($event)" class="list-items">
<ng-template let-item="item" let-i="index" let-odd="odd" let-even="even">
<GridLayout columns="*" rows="auto,auto" [class.odd]="odd" [class.even]="even" class="vocab-list">
<FlexboxLayout col="0" row="0" class="vocab-list-item-layout">
<Label [text]='item.label' textWrap="true" [id]="item.id" class="h3 vocab-list-item" (tap)="showVocab($event)"></Label>
</FlexboxLayout>
</GridLayout>
</ng-template>
</ListView>
</StackLayout>
I know its late for you but if someone is looking for this in future, so if you are getting below in console on any page you load.
JS: Avoid using ListView or ScrollView with no explicit height set inside StackLayout. Doing so might results in poor user interface performance and a poor user experience.
You just need to give your scrollView a height, try different heights like in my case I need 650
<Page class="main" actionBarHidden="true">
<StackLayout class="gradient-bg">
<ScrollView orientation="vertical" height="650"> <!-- Here height is 650 -->
<StackLayout>
<GridLayout rows="50" class="page-header">
<Label
row="0"
class="fa label-back"
:text="'fa-arrow-left' | fonticon"
v-on:tap="navigateTo('app')"
/>
<Label text="Plot Suggestion" row="0" class="lbl-heading" horizontalAlignment="center" />
...
...
Hello everyone I'm trying to make inner StackLayouts but the second one comes to top of first one so that I can't see the second StackLayout should I handle with css if it is how or is there an other way
Here is my code
<StackLayout orientation="horizontal">
<StackLayout width="500">
<GridLayout columns="50, *" rows="*" width="500" height="50"
verticalAlignment="top">
<Label text="Name" row="0" col="0" backgroundColor="red">
</Label>
<Label text="Fol" row="0" col="1" class="alignRight"
backgroundColor="blue"></Label>
</GridLayout>
</StackLayout>
<StackLayout orientation="horizontal" width="500" height="180">
<Image src="http://lorempixel.com/400/200" width="500" left="10"
top="30">
</Image>
</StackLayout>
</StackLayout>
Thank you
At first I would delete the widths to see how the page is displayed. 500 is a very big value. Only large tablets can support that.
As an example at first I would try this :
<GridLayout columns="auto, auto">
<GridLayout col="0" columns="50, *" rows="*" verticalAlignment="top">
<Label text="Name" row="0" col="0" backgroundColor="red">
</Label>
<Label text="Fol" row="0" col="1" class="alignRight"
backgroundColor="blue"></Label>
</GridLayout>
<Image col="1" src="http://lorempixel.com/400/200" left="10" op="30">
</Image>
</GridLayout>
After you see the two parts align horizontally you can start tweaking the widths
After I try NativeScript tutorial "Grocery", I found out that its button quite hard to tap it's because tap area is too small, so I want to increase Image hight by update layout file to the following below. However, image not seem to be in the center (Image Below).
How can I achieve this in NativeScript ?
list.html
<ActionBar title="Groceries">
<ActionItem text="Share" (tap)="share()"
android.systemIcon="ic_menu_share_holo_dark"
ios.systemIcon="9" ios.position="right"></ActionItem>
</ActionBar>
<GridLayout rows="auto, *">
<GridLayout row="0" columns="*, auto" class="add-bar">
<TextField #groceryTextField [(ngModel)]="grocery" hint="Enter a grocery item" col="0"></TextField>
<StackLayout class="delete-container" height="100%" (tap)="add()" col="1" >
<Image src="res://add" stretch="none" horizontalAlignment="center"></Image>
</StackLayout>
</GridLayout>
<ListView [items]="groceryList" row="1" class="small-spacing" [class.visible]="listLoaded">
<ng-template let-item="item">
<GridLayout columns="*, auto">
<Label col="0" [text]="item.name" class="medium-spacing"></Label>
<StackLayout col="1" class="delete-container" height="100%" (tap)="delete(item)">
<Image src="res://delete"></Image>
</StackLayout>
</GridLayout>
</ng-template>
</ListView>
<ActivityIndicator
[busy]="isLoading" [visibility]="isLoading ? 'visible' : 'collapse'"
row="1" horizontalAlignment="center" verticalAlignment="center"></ActivityIndicator>
</GridLayout>
You should check out NS's FlexBox layout.
It is quite useful:
http://docs.nativescript.org/cookbook/ui/layouts/flexbox-layout