I want to create a Ti.UI.TextArea object which would dynamically adjust its height to content but would have default height set (if no content). In Appcelerator if you don't specify height then it will automatically adjust its size to content but if there is no text then its size will be similar to textField. This is to small for me.
If you specify height property, then TextArea height won't change even if text will be longer than editable region.
I would like to have something like this:
var textArea = Ti.UI.createTextArea({
minHeight: 30,
});
or like this:
var textArea = Ti.UI.createTextArea({
minLines: 3,
});
I am looking for solution both for Android and iOS.
Is there any workaround for that?
You can change the height of the textField dynamically.
Add onChange event handler and change the height of the textField dynamically according to the number of lines in the text field.
Starting with 7.5.0.GA you can use maxLines on Android to be able to extend the TextArea to when pressing return. For iOS you have to create a work-around since there is no parity at the moment.
Related
I have an NSTextBlock subclass that has a specific backgroundColor set. Now when I add a custom paragraph style to a range of text like this
let block = MyTextBlock()
block.backgroundColor = myBackgroundColor
let pstyle = NSMutableParagraphStyle()
pstyle.textBlocks = [block]
attributedText.addAttribute(.paragraphStyle, value: pstyle, range: textRange)
// Append the attributed string to the text views textStorage ...
the text block is shown without a background color. I know that the text blocks works, because rectForLayout gets called, but when I try to override drawBackground it never gets called.
Do I have to do something else for NSTextBlocks to draw their background?
PS: Borders also seem to be ignored. I also tried to find a sample on Github, but that also doesn't draw any backgrounds, despite having a background color set.
After trying everything, I finally managed to get the background to show up, by setting
setValue(100, type: .percentageValueType, for: .width)
It seems that the drawing logic expects some value for the content size. Really nice documentation job there. This requirement is nowhere to be found.
I am trying to set a fixed height for a scroll container. The problem is, that I don't know the height from the beginning. I have to wait for the backend to tell me and after that the height should stay fix.
I already tried the value auto for the height property of the scroll container. This way the scroll container takes the height needed, but I doesn't stay like that.
Any time the screen size changes, the container takes the height to it's content. So it's not scrollable anymore.
Any ideas? Thanks for your help!
Wait for the server response and set the scrollcontainer height in success handler:
oModel.read("/Entity", {
success: function (oResponse) {
this.getView().byId("myScrollContainer").setHeight(oResponse.heightFromBackend + "px");
}.bind(this)
I am trying to create a pdf from a webpage using phantomJS. I want the pdf to just be a single page long that is the same height as my webpage. If I don't set paperSize or viewportSize at all then it creates a page that is almost the right height, it is just a little short by about 100px. If I detect page height and use that to set viewportSize I have the exact same problem, it's short by about 100px. Is there a way to get phantomJS to just create a pdf based on the webpage's size? I want it to be exact because the page is a dark colour and it looks really bad to have a big white block at the end of the page (which is what is there if I add a constant to viewport height to make it fit everything in one page).
My code to find height(Note: the height is the same whether I use body or the classname below to find it):
var size = page.evaluate(function() {
var height = $('.export-athlete-detail-report').outerHeight(true);
return {width: 700, height:height};
});
page.paperSize = size;
page.render(reportFile);
ALL!
I have dojo tooltip which is connected to an element.
It is created when/after page is loaded/ready. BUT, the problem is that content is loaded dynamically, when connected element is hovered the first time.
Content is loaded via AJAX. And - as far as the size of HTML content is unknown (widget is created, but content is still empty) - after hovering and content loading - Tooltip is appeared, but ARROW does not point to a connected element, but shifted down.
How to reposition a widget arrow after content is loaded dynamically?
Thanx a lot in advance!
UPDATE
After some investigations i have found, that position of tooltip Arrow is adjusted by
.tundra .dijitTooltipRight .dijitTooltipConnector class height (14px by default)
So i made quick and dirty fix for now:
function fixArrowForTooltip() {
// FIX ARROW (TODO HACK)
$(".tundra .dijitTooltipRight .dijitTooltipConnector").css("height",
"14px"); // restore to default for multiple tooltips in the page
var newHeight = $("#dijit__MasterTooltip_0").height() - 14;
$(".tundra .dijitTooltipRight .dijitTooltipConnector").css("height",
newHeight + "px");
// end of FIX
};
And placed this into onShow()...
I know, this should be re-worked, but.. WORKS PERFECT :)))
For any number of tooltips in the page arrows point DIRECTLY to connected elements :)
I have an image area in my application with width:530px and height:510px. I want to place images in that area but the images comes in different different sizes. how to crop or scale the image without losing aspect ratio to fill that area. Is there any native methods available in winjs?
You have a few options for that.
One is to use the ViewBox control that WinJS provides you. The ViewBox can only have a single child (so you would have your tag as its only child perhaps or a div that contains your img) and it will scale that child (using CSS transforms) up to fit into its container (without changing the aspect ratio). It's pretty slick.
Another option is to set the image as the CSS background-image property of a container (such as a div) and set the background-size property to contain. This will stretch the image up to the size of the container.
A final option that you have to resort to if your case is a bit special is not such a bad option after all. In the updateLayout method of your page, you can refer to the element and explicitly set its CSS properties to fit. At that point you'll know all about the layout and can easily do the math to figure out what size image should be. Here's some code from one of my projects where I do this. Notice that I'm comparing the aspect ratio of the screen and the image to determine whether I should size to the width or the height. Unlike your situation (I'm guessing), my code makes sure the image fills the screen and excess is clipped. I'm guessing you want your img to be contained.
function setImagePosition() {
var img = q(".viewCamera #viewport img");
if (outerWidth/outerHeight > img.naturalWidth/img.naturalHeight) {
img.style.width = format("{0}px", outerWidth);
img.style.height = "";
img.style.top = format("{0}px", (outerHeight - img.clientHeight) / 2);
img.style.left = "0px";
} else {
img.style.width = "";
img.style.height = format("{0}px", outerHeight);
img.style.top = "0px";
img.style.left = format("{0}px", (outerWidth - img.clientWidth) / 2);
}
}
Hope that helps!
Are you referring to scaling HTML images? If so, you can set either one, width or height. Whichever you set, the other will scale and keep image aspect ratio.