I want to console log all label text value displayed from my xml, And this is how I was doing to log the label Ti.API.info($.label.getText()); , but this code doesn't seem to work since this only works for only a single value from a variable. How I'm going to do this? Sorry,Just so noob enough. Thanks!
<TableView id="table" dataCollection="person">
<TableViewRow id="row">
<Label id="label" text="{name}"></Label>
</TableViewRow>
</TableView>
from the Appcelerator documentation http://docs.appcelerator.com/titanium/latest/#!/guide/Alloy_Data_Binding
dataTransform: specifies an optional callback to use to format model attributes. The passed argument is a model and the return value is a modified model as a JSON object.
<TableView id="table" dataCollection="person" dataTransform="dumpText" >
<TableViewRow id="row">
<Label id="label" text="{name}"></Label>
</TableViewRow>
</TableView>
So we can use this method to dump whatever is being added to the list
function dumpText(model) {
// model to a JSON object
var o = model.toJSON();
Ti.API.info(o.name);
return o;
}
Related
I hope you can help me to solve my problem.
I am working on a Nativescript-Vue Application and I want to render this conditionally:
<Label if="isRendering" text="This is a text"></Label>
But this does not work.
I already tried it with <v-template if="..."></v-template> but this also does not work.
If i am not mistaken, in Vue.js it is possible to render conditionally with v-if and i am searching for a possibility to make it in Nativescript-Vue.
Thank you
It's the same like in Vue.js.
Instead of using if you should be using v-if.
Playground example
Example:
<Label v-if="isRendering" text="This is a text"></Label>
But if you want to use an if in a ListView it's different.
Example:
<ListView for="item in listOfItems" #itemTap="onItemTap">
<v-template>
<Label :text="item.text" />
</v-template>
<v-template if="$odd">
<!-- For items with an odd index, shows the label in red. -->
<Label :text="item.text" color="red" />
</v-template>
</ListView>
But more info about that in the docs
I have an Appcelerator Titanium app to do, i have a Ti.UI.ListView with a view inside (view_one.xml):
...
<ListView onItemclick="getEvaluation" id="myLisview" defaultItemTemplate="templateLm" bottom="0" top="10" onItemclick="changePage" backgroundColor="white">
<Templates>
<Require id="lm_items" src="common/templateLm"/>
</Templates>
</ListView>
...
in common/templateLm :
<Alloy>
<ItemTemplate name="templatePageMission">
<View bindId="evaluate" height="10dp">
<Label text="evaluate"></Label>
</View>
<View bindId="stars" height="15dp"/>
</ItemTemplate>
</Alloy>
in view_one.js :
function getEvaluation(e){
switch(e.bindId){
case 'evaluate':
var item = e.section.getItemAt(e.itemIndex);
console.log(item) // <= this is empty ????
item.stars.backgroundColor = "red";
break;
}
}
and when click on the evaluate view I finally got:
undefined is not an object (evaluating item.stars.backgroundColor)
If anyone can help, this is great, anyway thanks for this great community.
You have assigned the itemclick event twice:
onItemclick="changePage"
and
onItemclick="getEvaluation"
So if you just use the latter one, it should catch the controller function correctly and the item should be updated correctly, since your controller code looks valid.
In Alloy Titanium, I can access XML elements with their id $.element_id but how can I get elements of other class? or xml?
EDIT
I have two files.
1. file1.js, file1xml.xml
2. file2.js, file2xml.xml
In File1.js i want to access the variable of file2xml.xml. how can i achieve this?
Anything with an id can be accessed:
file1.xml
<Alloy>
<View id="myView" />
</Alloy>
file2.js
var ctrl1 = Alloy.createController('file1');
ctrl1.myView.backgroundColor = 'red';
if you have required file2.xml in file1.xml like
<Require src="common/viewToolBar" id="viewToolBar"/>
then you can get the element with the id in file1.js like
$. viewToolBar.getView('viewSynch').visible = false;
link for more details
You can use Require tag in alloy with an Id and you can access its elements as below.
**File1.xml**
<Alloy>
<View>
<Label id="labelId">Middle</Label>
</View></Alloy>
**File2.xml**
<Window>
<Require src="File1" id="File1View" type="View"/>
<View id="header"><Label id="headerText">Header</Label></View>
<View id="nav">
<Label class="navButton" onClick="openTab" controllerName="home">Home</Label>
<Label class="navButton" onClick="openTab" controllerName="news">News</Label>
<Label class="navButton" onClick="openTab" controllerName="info">Info</Label>
<Label class="navButton" onClick="openTab" controllerName="more">More</Label>
</View>
</Window>
**File2.js**
$.File1View.labelId.text = "hi";
The following code to print the "local" model in tableview, its working, now my problem is to fetch the row id or row detail by clicking the each row. I have attached the showDetail function on each row to get the row detail.But unable to get the row attch data. How can i achieve this please help me, I really appreciate your answers.
<TableView dataCollection="local">
<TableViewRow onClick="showDetail">
<View layout="horizontal">
<ImageView image="{image}" width="50" height="50"/>
<Label id="name" text="{title}"></Label>
</View>
</TableViewRow>
</TableView>
function showDetail(e){
console.log(e.index);
}
Have a look at the TableView API click Event:
http://docs.appcelerator.com/platform/latest/#!/api/Titanium.UI.TableView-event-click
There are all properties: e.g. index=the number of the row
And have a look at row and rowData
I'm using alloy (markup and models) to construct a tableview, Everything works perfect
<Collection src="spot" />
<Window>
<TableView id="spotTableView" dataCollection="spot">
<TableViewRow title="{name}">
<View class="header-view">
<Label class="title-header" text="{name}"/>
<Label class="desc-header" text="{desc}"/>
</View>
<View class="fixed-view">
<ImageView class="image" image="{logo}"/>
<View class="info-view">
<Label class="green-label" text="{cost}"/>
<Label text="{minimum}"/>
</View>
</View>
</TableViewRow>
</TableView>
</Window>
But I have a question: How I can modify dynamic data form for each tableviewrow? I need to change the colors of the labels depending on the data that brings each model in the collection. For example, if the cost is 0 that the label "cost" is green, but if the cost is 100 then the color of the label is red.
I guess this must realizarce on the controller, but I would not like create the tableviewrow out of view, because they do not want to miss the advantages of data bindings
Add a field containing the color to the model, and bind the label's color to it.