In my code I am doing this:
var taskLabel = Ti.UI.createLabel({color:'#777', top:3, textAlign:'center', height:'auto', text:task.title});
Ti.API.info('Next info is: taskLabel.height');
Ti.API.info(taskLabel.height);
But, the output from this is:
[INFO] [123,883] Next info is: taskLabel.height
And nothing more, it looks like it breaks silently, but I guess it shouldn't, based on the API.
I am trying to sum some heights of the elements, but I would prefer it behaved like html postion:relative. Anyway, I'd like to read the height in float, how can I achieve that?
You need to set a fixed width when you use an auto height. For example:
var taskLabel = Ti.UI.createLabel({color:'#777', top:3, textAlign:'center', height:'auto', width: 200, text:task.title});
you are not going to get the height until it is actually rendered and added to view or window.
You cant read the height property off like that, if you didn't manually define it.
It has to be added to a view, and then displayed (assuming it doesn't auto display) before Titanium will return anything about the height.
var window = Ti.UI.createWindow();
var taskLabel = Ti.UI.createLabel({color:'#777', top:3, textAlign:'center', height:'auto', text:task.title});
window.add(taskLabel);
window.open();
Ti.API.info('Next info is: taskLabel.height');
Ti.API.info(taskLabel.height);
That should work to show the height.
This should work.
var lbl_obj = Ti.UI.createLabel( { height: 'auto', text:'Test Label', top:10 } );
var height = lbl_obj.toImage().height;
Ti.API.info(height);
Related
I have an image which is being set through:
var oImage = new sap.m.Image({
id: image0,
src: "img/image0.jpg"
});
I want to figure out the width and height of the image ?
I have tried oImage.getWidth() and oImage.getHeight() but those return empty. I have also tried parseInt(oImage.getWidth()) and parseInt(oImage.getHeight()) but those return NaN.
The values are empty because you haven't set them yet. Both getHeight and getWidth return the set values not the default height and width of the image. Have a look at Image Control.
var oImage = new sap.m.Image("image0", {
src: "img/load.gif",
height: "30vh",
width: "30vw"
});
This oImage.getWidth() will return "30vw"
Since, you have not specified with and height of the image, you will have to use the DOM to get the details of the image. Try the following code in your controller:
var image = this.byId("image0");
var oDomRef = image.getDomRef()
console.log(oDomRef .width, oDomRef .height);
It will give the image width and height in px.
I'm having trouble setting the number of rows for a table to automagically fill the available estate of its encapsulating container.
According to the API, setting the visibleRowCountMode property to sap.ui.table.VisibleRowCountMode.Auto should render the table to
"[...] automatically fills the height of the surrounding container.
The visibleRowCount property is automatically changed accordingly. All
rows need the same height, otherwise the auto mode doesn't always work
as expected."
I have used the following code:
var oTable = new sap.ui.table.Table( {
rowHeight : 30,
height : "100%",
// The below property is seemingly ignored... What did I do wrong?
visibleRowCountMode : sap.ui.table.VisibleRowCountMode.Auto
});
...but as you can see in this jsbin example http://jsbin.com/vazuz/1/edit it just shows the default 10 rows, and certainly doesn't "change the visibleRowCount property accordingly" :-(
Anyone has a solution?
Thanks in advance!
=====================
EDIT: Thanks to #matz3's answer below, I was ultimately able to solve this issue.
Setting the surrounding container DIV to 100%, this seems to be ignored. Setting it to a fixed height, however, worked just fine. But what I really wanted, if a user resized the window, the number of available rows needs to be adjusted accordingly. Setting it to a fixed height is therefor not an option...
However, the trick was in some extra CSS: not only the DIV needed to be set to 100% height, also both BODY and HTML (!!) needed to have a height set to 100%:
html, body {
height: 100%
}
div#uiArea {
height: 100%
}
Now, the table spans the full height of the available viewport, and resizing the window adjusts the table rather nicely. See the final working solution here: http://jsbin.com/bosusuya/3/edit
Matz3, thanks for your help!
CSS hacks is a dirty way. In my application I use to bind visibleRowCount to Array.length
For example, if you have model with this data:
[{firstName: 'John', lastName: 'Smith',
{firstName: 'David', lastName: 'Ericsson'}]
You can bind to Array property length like this:
var oTable = new sap.ui.table.Table({
visibleRowCount : '{/length}'
})
[...] automatically fills the height of the surrounding container [...]
Your surrounding container is the view, so you have to set the height of it also to a value (e.g. 100%)
this.setHeight("100%");
And your view will be set into the uiArea-div, so this one also needs a height (e.g. 500px)
<div id="uiArea" style="height:500px"></div>
With these changes it now works as expected
I'm with the same issue. I "resolve" that in this manner. This is not perfect, but it's better than UI5 resizing...
_resizeTableRow: function () {
var oTable = this.getView().byId("referenceTabId");
var sTop = $('#' + oTable.getId()).offset().top;
var sHeight = $(document).height();
//if there a row, you can take the row Height
//var iRowHeight = $(oTable.getAggregation("rows")[0].getDomRef()).height();
var iRowHeight = 40;
var iRows = Math.trunc((sHeight - sTop ) / iRowHeight);
oTable.setVisibleRowCount(iRows);
},
Other option is to put the Table in sap.ui.layout.Splitter:
I've made a MultiBarChart with NVD3.
It works, however, a colleague said I needed more space between each Australian state.
So, Tasmania further from Victoria etc.
Here is the data visualisation
I can not find a forum that explains this in non-developer language. I'm not a developer, but having a go.
Here is my code...
var chart;
nv.addGraph(function() {
chart = nv.models.multiBarHorizontalChart()
.x(function(d) { return d.label })
.y(function(d) { return d.value })
.margin({top: 30, right: 105, bottom: 30, left: 103})
.tooltips(true)
.showControls(false);
chart.yAxis
.tickFormat(d3.format(',.1f'));
d3.select('#chart1 svg')
.datum(long_short_data)
.transition().duration(1400)
.call(chart);
nv.utils.windowResize(chart.update);
chart.dispatch.on('stateChange', function(e) { nv.log('New State:', JSON.stringify(e)); });
return chart;
});
Thanks you super kind and smart people!
No Need to use too much code for spacing just use below code :
var chart = nv.models.multiBarChart();
//added by santoshk for fix the width issue of the chart
chart.groupSpacing(0.8);//you can any value instead of 0.8
This is unfortunately something you can't configure in NVD3. However, you can change the height of the bars after the chart has been created to make it appear as if there's more space between them. The code to do this is simple:
d3.selectAll(".nv-bar > rect").attr("height", chart.xAxis.rangeBand()/3);
The default height is chart.xAxis.rangeBand()/2 -- you can adjust this as you see fit. The only thing to keep in mind when running this code is that NVD3 animates its elements, so not everything will be there in the beginning or values may be overwritten. You can solve this by waiting a small amount of time before calling that code using setTimeout:
setTimeout(function() {
d3.selectAll(".nv-bar > rect").attr("height", chart.xAxis.rangeBand()/3);
}, 100);
Just found this question while searching for a way to add more space between bars. Like Lars said, you can change the bar size after the chart has been drawn. However, when you increase the bar height without changing the space between each bar, it overflows. To add space between the bars you should use xRange:
var chart = nv.models.multiBarHorizontalChart().xRange([0, 125])
I'm manually porting an extension I wrote in Chrome over to Firefox. I'm attaching a panel to a widget, and setting the content of that panel as an HTML file. How can I make the panel shrink and grow with the content? There's a lot of unsightly scroll bars and grey background right now.
var data = require("self").data;
var text_entry = require("panel").Panel({
width: 320,
height: 181,
contentURL: data.url("text-entry.html"),
contentScriptFile: data.url("get-text.js")
});
require("widget").Widget({
label: "Text entry",
id: "text-entry",
contentURL: "http://www.mozilla.org/favicon.ico",
panel: text_entry
});
Not setting the height property of the panel makes it quite tall.
You might want to check out this example that resizes the panel based on the document loaded. If you want to resize based on changes to the content size, at least on initial load:
https://builder.addons.mozilla.org/package/150225/latest/
( sorry for the delay in respinding, been afk travelling )
Quick one for any developers using appcelerator out there. I have two labels (This may even bew wrong) which are populated from an RSS feed. One label houses the title and another the description. The content for these comes from an RSS list which all works fine. THe issue I'm having is that some titles are longer than others so I cant fix label heights or it just wont work.
So with that in mind I set the titles height to be auto. The only problem is I cant reference this height from my second label to use the top: property to space it correctly.
Has anyone got any good suggestions?, Am I using the wrong type of Titanium UI method?
My current code is as follows
try
{
var current = Titanium.UI.currentWindow;
var selectedItem = current.item;
var description = selectedItem.getElementsByTagName("description");
var story = description.item(0).text;
var label = Ti.UI.createLabel({
text:selectedItem.getElementsByTagName("title").item(0).text,
left:5,
top:0,
height:"auto",
font:{fontSize:40}
});
current.add(label);
var story = Ti.UI.createLabel({
text:story,
left:5,
top:label.height,
height:"auto"
});
label.add(story);
}
catch(E)
{
alert(E)
}
minimumFontSize
the minimum size of the font when the font is sized based on the contents. Enables font scaling to fit and forces the label content to be limited to a single line
On the containing window / view, set the layout property to 'vertical' - this means the views are stacked on top of one another so your top value doesn't have to know the height of the previous component.
// Windows
var window = Ti.UI.createWindow({
layout: 'vertical',
backgroundColor: '#FFF'
});
var label = Ti.UI.createLabel({
width: 200,
height: 'auto',
text: 'some long text'
});
var label2 = Ti.UI.createLabel({
width: 200,
height: 'auto',
text: 'more long text',
top: 10 // This just adds some padding between the two labels
});
window.add(label);
window.add(label2);
window.open();