I want to have a window xtype that contains just an of its own size but when I show my window, it shows up as a tiny square in the middle of the screen (not the actual size of the image). I've tried using this block of code
listeners:{
afterrender: function(me){
me.el.on({
load: function (evt, ele, eOpts){
me.updateLayout();
},
error: function(evt,ele,eOpts){
}
});
}
}
to update the layout of the parent window from within the image xtype, but this makes the window not centered and centering the window during an afterrender event isn't working. Am I missing something simple? I also have the maxWidth and maxHeight configs of the image set to Ext.getBody().getViewSize().width and height respectively.
Sencha had a good reason not to use xtype: 'image' for their own icons etc.
xtype: 'image' only works with fixed width and height, so you can't even preserve aspect ratio, as far as I know.
What you want to do is to have a container and set the background-image of the container.
xtype: 'container',
style: 'background-image: url(\'image.jpg\'); background-repeat:no-repeat; background-position:50% 50%; background-size:contain'
or even just use the window: https://fiddle.sencha.com/#view/editor&fiddle/244n
Related
I've got a StackLayout where one of the entries is a GridLayout of a fixed size. Normally this GridLayout is not visible.
On tapping a button, I'd like the GridLayout be made visible - but I'd like to animate it open - - like a menu open.
Any ideas?
Actually toggling visibility is not too bad - it seems to animate the open - any way to control the speed?
The close operation is maybe too fast for what I'm trying to achieve.
You could animate the opacity of your grid. so when you click on it you would
// View is your gridView, this would hide it completely
view.opacity = 0;
// when you want to show it.
// fade in view.
view.animate({
opacity: 1,
duration: 250
}).then(() => {
//Set the visibility to collapsed after the animation is complete
//I believe you will want to do this so that the surrounding views adjust accordingly.
view.visibility='collapse';
}, (err) => {});
// when you want to hide it.
// fade out.
view.animate({
opacity: 0,
duration: 250
}).then(() => {
view.visibility='visible';
}, (err) => {});
You also may want to look into translate for you animations so you can move view down, left, up, right any way you want.
I'm developing a TimeLine component. There are Views list inside horizontal ScrollView that represents half an hour blocks. And I have a Component called TimeRangeSelector, which I use to select a range of time in TimeLine ScrollView. So while I scroll the ScrollView I need to move the TimeRangeSelector in parallel without any lag. Below is the TimeLine component. You can see the 30mins blocks are filled inside ScrollView. The yellow color one is the TimeRangeSelector which is a Animated.View. And the left position of the TimeRangeSelector is set using the scroll position. Each time ScrollView moves im setting the state as below.
<ScrollView
horizontal={true}
onScroll={this.onScrollFunc}
>
{timelineElements}
</ScrollView>
onScrollFunc = (event, gesture) => {
this.setState({
contentOffsetX: event.nativeEvent.contentOffset.x,
scrollStopped: false
});
};
And Im passing the scrollBarPosition as props to the TimeRangeSelector and setting its left position style as shown in below code
<TimeRangeSelector
scrollBarPosition={this.state.contentOffsetX}
/>
let styles= [
{
position: "absolute",
left: this.props.scrollBarPosition,
backgroundColor: backgroundColor,
marginTop: 20,
marginLeft: 1,
width: this.state.selectionWidth,
height: 100
}
];
But the issue is when I scroll the ScrollView the TimeRangeSelector moves with it, but it has a delay.. when I scroll faster the distance between where it should be and where it is, is becoming high. Can anyone give me some ideas according to your knowledge.
My assumption: According to my understanding, I think the lag is because of it takes several instances to reach the setState in and set the ScrollBarPosition as below steps.
ScrollView moved 1 frame.
ScrollView fires the onScroll function and emmits the event with new x point.
Then in the onScroll function it sets the State.
As I understand it takes some time to happen all these steps from JavaScript thread all the way to Native Thread and come back to JS thread again.
You should use something like const onScroll = Animated.event([{ nativeEvent: { contentOffset: { x: animatedValue } } }], { useNativeDriver: true }); with const animatedValue = new Animated.Value(0). This way the animation is only done on the native level without going back and forth through the JS thread.
This animated value can only be used effectively with opacity and transform style properties, but it should help you with your problem.
You can read more about this, in this awesome article.
This is what the popup looks like now:
I want to make the actual popup bigger as well as all of the text boxes inside.
Apparently, this changes the size of the actual popup and then centers it on the screen, the problem now is that I don't know how to resize the text boxes inside. It is executed on the EDIT event of the grid:
window.setTimeout(function () {
$(".k-edit-form-container").parent().width(800).height(400).data("kendoWindow").center();
}, 100);
Does anyone know how to do this?
Can you just use regular CSS? Like:
.k-edit-form-container .k-textbox,
.k-edit-form-container .k-widget
{
width: 600px;
}
You just have to make the selectors be a bit more specific that Kendo's built-in ones.
You can just delete the "parent"
window.setTimeout(function () {
$(".k-edit-form-container")
.width(800)
.height(400)
.data("kendoWindow")
.center();
}, 100);
I created an imageView in Titanium. Whenever I set the width and height of the image to "auto"; the image is not visible. But if I manually set height and width of the image, the image appears.
Why does this happen ?
var image = Titanium.UI.createImageView({
backgroundImage:'test.png',
width: 'auto',
height: 'auto'
})
If you go here on the DOCs you will see that `auto is deprecated:
'auto' represents the default sizing behavior for a given type of view. The use of 'auto' is deprecated, and should be replaced with the SIZE or FILL constants if it is necessary to set the view's behavior explicitly.
Instead try setting the width and height to Titanium.UI.SIZE, Titanium.UI.FILL, a pixel value, or a percentage of the parent view.
I have a main view, then on that view I have, as children, two labels and an image. I want the labels to flow one after another from the top of the screen and I want the image at the bottom. I get the labels to flow properly by setting layout:'vertical' in the main window. But once that is done, I can't seem to force the image to the bottom. Here is a snippet of my code:
var self = Ti.UI.createView({
backgroundColor:'#fff',
layout:'vertical'
});
var l1 = Titanium.UI.createLabel({
text:quote,
color:'#000',
shadowColor:'#ddd',
shadowOffset:{x:2,y:2},
font:{fontFamily:'Marker Felt',fontSize:24},
top:20,
left:15,
right:15,
height:'auto'
});
self.add(l1);
var l2 = Titanium.UI.createLabel({
text:author,
color:'#000',
shadowColor:'#ddd',
shadowOffset:{x:2,y:2},
font:{fontSize:16},
top:10,
left:15,
right:15,
height:'auto',
textAlign:'right'
});
self.add(l2);
var imgView = Titanium.UI.createImageView({
image:myimage,
setBottom:10,
height:100
});
self.add(imgView);
I have tried setting the image layout and that doesn't work. If I change the 'self' window layout to 'absolute' then I can't seem to get the labels to flow cleanly after one another. The first label is of variable height so I need them to follow each other.
I am using Titanium 1.82.
Thanks. In advance.
You might need to add another view. The 'base' view would have what you are calling 'self' added at top:0 and height: 'auto'
Then add imgView to 'base' with bottom: 10 (not setBottom like you have).
Just set the bottom:0; position: fixed; i think this will help u to set the image bottom of the screen.. If it still not working means try with Html,Css and Javascript for design it will be very easy.