I've created a blur background view which I would like to apply to a particular UIview which contains a number of elements - I would like the new view to be placed behind all other elements.
This is my current code -
[_feedUIView addSubview:blurView ];
All works fine - but it places the new view in front - how can I place it at the back?
Just use this after adding it:
[_feedUIView sendSubviewToBack:blurView]
Do something like this.
[_feedUIView addSubview:blurView];
[_feedUIView sendSubviewToBack:blurView];
Related
I build a textinput like facebook's mentions. After typing # you get a list with different hashtags. I have two of them on one site, one for the title and one for the text.
The problem is, that the hashtag-list from the title is displayed below the text of the content. See Screenshot for that:
The list of hashtags is behind the lorem ipsum content
I tried using the zIndex but it does not have any effect here.
The hierachie is as follows:
View:
-- MentionsText Title
--- #List for Title
-- MentionsText Content
--- #List for Content
As you can see, the content is below the title in the hierachy. That positions it correctly on the screen, but displayes itself above the list of the title. Is there any way of accomplishing it with a smooth solution?
Try wrapping your blocs into views independently, don't use absolute position.
Btw if your list can grow without limit you may need a ScrollView or FlatList.
I found a solution that contains wrapping both textinput in one view, changing the order (content first, then title) and then setting flexDirection of the view to 'column-reverse'. That way the title is again on top and the z-index is now correctly set too. Just doesnt seem very nice, maybe someone got a tip to improve it. The code is the following (note that the MentionsTextInput contains the List as a child):
<View style={{flexDirection:'column-reverse'}}> //The newly added view
<MentionsTextInput //The content of the page
style={styles.inputContent}
placeholder={I18n.t("descriptionInput")}
value={this.state.description}/>
<MentionsTextInput //The title
style={styles.inputTitle}
placeholder={I18n.t("noteTitle")}
value={this.state.title}/>
</View>
I have a scrollableView with several views inside and I'd like to add item to some of these view if they meet a certain criteria, like if they have data attached or not. Also I'm using Alloy, here's my markup
<ScrollableView id="scrollableView">
<View id="view" class='coolView'></View>
...
</ScrollableView>
To know if there are data attached I check the currentPage attribute like so:
function updateCurrentView(e) {
currentView = e.currentPage;
}
But I have no idea how to add an item to the current View.
Edit: To add some clarification, I have a label which when clicked allow me to choose two currencies, when chosen these currency pairs are saved in the database and should be displayed instead of the label. So my guess was to check whether the current view has currency pair saved.
There are 2 things to take care of here:
1.Whenever a currency is selected,immediately label on that particular view will change.
2.Whenever the scrollableView is loaded,it must always refer to the database if a currency is selected.
First one can be done as:
1.Get the instance of scrollableView using the getView method of alloy controller.Pass the id of the scrollableView to it.Lets call it myScrollableView.Refer this for more info.
http://docs.appcelerator.com/titanium/latest/#!/api/Alloy.Controller
2.Use var currentView=myScrollableView.getCurrentPage() to the get the current page which will be a number.
3.Now use the scrollableView instance to get all the views.
var viewArray=myScrollableView.getViews();
4.viewArray[currentView] will give you the view of current page.After you have got the view you can change the desired label using:
viewArray[currentView].children[positionOfTheView]
The "positionOfTheView" can be obtained by printing the viewArray[i].children array using Ti.API.info.
Second thing can be accomplished as follows:
1.Get the instance of scrollableView using the getView method of alloy controller.Pass the id of the scrollableView to it.Lets call it myScrollableView.Refer this for more info.
http://docs.appcelerator.com/titanium/latest/#!/api/Alloy.Controller
2.Now use the scrollableView instance to get all the views.
var viewArray=myScrollableView.getViews();
3.This is a JavaScript array of all the views in the scrollableView. Now iterate through this array and according to the data in the database,change the concerned view using:
viewArray[i].children[positionOfTheView]
The "positionOfTheView" can be obtained by printing the viewArray[i].children array using Ti.API.info.
Can I add an item to the container as the first one rather than appending all existing ones.
From what I understand this.add([item]) will add item as the last one, however I would like it to apper it on the top of the screen before anything else has been added.
You can use insert method of container like this:
this.insert(0 , item);
where it would appear depends on your layout.
I'm on ExtJS 4 and using an MVC approach. I've created a simple grid view class, and have added a componentquery type 'ref' to that view in my controller. Within the initial grid view itself I set several columns to be hidden and some to be visible by default. The rendering of the grid with those settings is all working fine.
Then I have a button that, when clicked and based on some other conditions, will make some of the initially hidden grid columns visible. This works as well.
But what I need is a way to later 'reset' the grid to its initial view (with the correct columns hidden/visible, as they were initially).
I've tried various permutations of the following with no effect:
var theGrid = this.getTheGrid();
theGrid.reconfigure(store, theGrid.initialConfig.columns);
theGrid.getView().refresh();
I suppose I could loop through every column and reset its 'hidden' state, but would think there's a way to just 'reset' back to what's set in the class? Advice?
SOLUTION UPDATE
Appreciate the pointer from tuespetre. For anyone coming along in the future looking for specifics, here is what was needed (at least for my implementation):
Within the view, moved the column defs into a variable
Within the view, columns ref within the class becomes:
columns: myColumns,
Within the view, the following function created within the class:
resetGrid: function(){
this.reconfigure(null, myColumns);
},
Within the controller:
var theGrid = this.getTheGrid();
theGrid.resetGrid();
You will just need to create a function on your view class to encapsulate that functionality.
I have .jsff page that contain command button and inline frame. What I want to do is, I want to make command button remain static at the same place and only inline frame can move when scroll the page.
Currently what I do is I set some panel stretch layout(StyleClass:AFStetchWidth). I put the command button at the top. Inline frame in scroll panel group at the center.
Here is my structure:
af:panelStetchLayout(StyleClass:AFStretchWidth)
>
Panel Stretch Layout facets
bottom
center
af:panelGroupLayout-scroll
af:inlineFrame (StyleClass:AFStretchWidth)
end
start
top
af:panelGroupLayout-horizontal
af:commandButton-back
When I run this page: command button remain static at the top. This is correct, but the size of the inline frame is small. Is there a way to make an inline frame to be stretch?
set the (StyleClass:AFStretchWidth) on the af:panelGroupLayout-scroll.
Did you try putting this attribute :
sizing="preferred"
I have used it and it works pretty well inside panel stretch layout.
just i solve it as following:
<af:panelGroupLayout id="pgl1" halign="center">
<af:inlineFrame id="if1" source="/index.html" styleClass="AFStretchWidth" inlineStyle="height:100%;"/>
</af:panelGroupLayout>
inlineStyle="height:100%;"
on default af:panelGroupLayout
thats all.
I was getting the same issue. Here I have solved it as below:
I have used panel splitter for inline frame.
<af:panelSplitter styleClass="AFStretchWidth" inlineStyle="height:500px;" id="ps3" dimensionsFrom="parent"
positionedFromEnd="false">
<f:facet name="first">
<af:panelGroupLayout id="pgl11" >
<af:inlineFrame styleClass="AFStretchWidth" partialTriggers="cb3" source="#{pdfHandler.servletString}"
id="if1" visible="true" binding="#{pdfHandler.inLineFrame}" shortDesc=" "
inlineStyle="height:500px;"/>
</af:panelGroupLayout>
</f:facet>
Here as shown above,
I have added inlineStyle for height in both panelSplitter and in inlineFrame.
Added dimensionFrom for panelSplitter as 'parent'
Surround inlineFrame with panelGroupLayout.
With this, It worked for me.