I'm using a tableView with a headerPullView.
It works fine, but i want to show the headerPullView when i open the tab so the user can see that new data is loaded.
Can't find any information on google or appcelerator docs.
I only found this: http://developer.appcelerator.com/blog/2010/05/how-to-create-a-tweetie-like-pull-to-refresh-table.html
but this only shows how to update when the tab is already loaded. I'm looking for a way to show that loading headerPullView when i open that window.
You can't simulate a scroll with the headerPullView but you can fire an event of scroll.
Anyways what I would advise is to create a headerView and set the table height smaller and away from the top. Attache a listener to the open event.
var headerView = Ti.UI.createView({
top: 0,
height: 60
});
Ti.UI.currentWindow.addEventListener('open', function(e) {
tableView.top = 60;
tableView.height = 400;
Ti.UI.currentWindow.add(headerView);
Ti.UI.currentWindow.add(tableView);
});
Then just set it all back the way you need it when you scroll the table the first time.
var scrolled = 0;
tableView.addEventListener('scroll', function(e) {
if(!scrolled) {
tableView.top = 0;
tableView.height = 460;
Ti.UI.currentWindow.remove(headerView);
scrolled = 1;
}
// scroll code
});
I'm not so sure why you need to do this however. After facebook replaced "shake to refresh" with this method I've started seeing it in almost all table apps and have come to just expect it. I assume many other users feel the same way about this?
you can use listView instead of tableView, it supports pull view already
check this
http://docs.appcelerator.com/titanium/3.0/#!/guide/ListViews-section-37521650_ListViews-PulltoRefresh
or you can use this modules
https://github.com/jolicode/Alloy-PullToRefresh
Related
I have gotten into a small issue I can't seam to wrap my head around, and I hope for some guidesnes from you folks.
I have a timeline with a bunch of groups and subgroups, and the height of the timeline is now bigger than the height of the monitor showing it.
And that is fine it can be scrolled using the scroll wheel on the mouse, however as it is ment to be just a timeline on a wall mounted screen it would be cool if I could make an autoscroll function, that scroll the timeline up and down in a given timeframe.
Unfortunatly I can't figure out where to implement it to make it work.
I have the following code to make a div scroll ( and have tried diffrent ways to make it do it in the vis.js code, but so far no luck )
if anyone knows of a way to make it scroll up and down in a given timeframe i would really appreciate the help.
<script language="javascript">
ScrollRate = 1;
function scrollDiv_init() {
//this can be a class also.
DivElmnt = document.getElementById('MyDivName');
ReachedMaxScroll = false;
DivElmnt.scrollTop = 0;
PreviousScrollTop = 0;
ScrollInterval = setInterval('scrollDiv()', ScrollRate);
}
function scrollDiv() {
if (!ReachedMaxScroll) {
DivElmnt.scrollTop = PreviousScrollTop;
PreviousScrollTop++;
ReachedMaxScroll = DivElmnt.scrollTop >= (DivElmnt.scrollHeight - DivElmnt.offsetHeight);
}
else {
ReachedMaxScroll = (DivElmnt.scrollTop == 0) ? false : true;
DivElmnt.scrollTop = PreviousScrollTop;
PreviousScrollTop--;
}
}
function pauseDiv() {
clearInterval(ScrollInterval);
}
function resumeDiv() {
PreviousScrollTop = DivElmnt.scrollTop;
ScrollInterval = setInterval('scrollDiv()', ScrollRate);
}
</script>
Well, the only tricky part I can see about scrolling timeline at http://visjs.org/examples/timeline/other/verticalScroll.html is that you have to scroll certain element, not the container of the timeline. If you use inspector to find the element with the scrollbar, you'll probably be surprised to see this:
Indeed, if I apply scrolling to that element
var scrollerElement = document.querySelector('#mytimeline1 div.vis-panel.vis-left.vis-vertical-scroll');
scrollerElement.scrollTop = 100;
the timeline gets scrolled vertically. By the way, the vis-vertical-scroll class suggests that we are on the right way. Actually, you should probably use a shorter selector instead:
var scrollerElement = document.querySelector('#mytimeline1 .vis-vertical-scroll');
You can try this via browser console on that page. I think this should be enough for you to implement the desired autoscrolling.
Anyone got a tip how to add a View over the current view (modal)? I'm creating an app with a video recorder, and the video screen is presented modally on the screen. I want some text to show up above the video modal, and I think I've tried any approach I can think of atm.
Currently im stuck with something like:
var topMost = frameModule.topmost();
var View = new ViewModule.View(questionHolder);
topMost.currentPage._addView(View, 0);
But with no success. questionHolder is a view I fetch with
currentpage.getViewById
Edit:
From the answer of #davecoffin where I understood you could not mix native views and nativescripts views, I was able to solve this in my case by accessing the native view directly and adding a subview to it. In my case:
var sharedApplication = utils.ios.getter(UIApplication, UIApplication.sharedApplication);
var overlay = UIView.alloc().initWithFrame({
origin : {
x: 0,
y: 44,
},
size: {
height: 100,
width: platform.screen.mainScreen.widthPixels
}
});
overlay.backgroundColor = UIColor.blackColor;
overlay.alpha = .6;
sharedApplication.keyWindow.rootViewController.presentedViewController.cameraOverlayView = overlay;
You can directly create and use modal pages as described in this article.
If I am understanding your approach correctly...
You cant add Nativescript views on top of native views.
Check out this forum question: https://discourse.nativescript.org/t/appending-nativescript-views-to-a-native-ui-view/1412
Basically once you have appended a native view (not a nativescript layout or ui view), then every view you append after that must be a native view. For iOS you use addSubview, not sure about android atm.
I want to change the label of a widget when user click it, then I write the code looks like this:
var widgets = require("sdk/widget");
var statusBar = widgets.Widget({
id: "patchouliStatus",
label: "Wait Page Loading...",
contentURL: "http://www.mozilla.org/favicon.ico",
onClick: function(){
this.contentURL = "http://www.google.com/favicon.ico";
this.label = "Clicked";
}
});
When I click the widget, the icon has changed, but nothing happen to the label.I move the mouse to the widget and it still show "Wait Page Loading...".Is there a way to dynamically change the label?
Firefox: v27.0.1
Add-on SDK: v1.15
Widget's label is read-only. You must use tooltip attribute to show the user a text on mouse hover, this way:
var widgets = require("sdk/widget");
var statusBar = widgets.Widget({
id: "patchouliStatus",
label: "Wait Page Loading...",
contentURL: "http://www.mozilla.org/favicon.ico",
onClick: function(){
this.contentURL = "http://www.google.com/favicon.ico";
this.tooltip = "Clicked";
}
});
As docs says somewhere in this section -I think it could be more clearly documented-, tooltip value is an "optional text to show when the user's mouse hovers over the widget. If not given, the label is used". Also, examples in that section don't make it clear enough as I think they should.
Ok man thanks for the XPI, change changeLabel function to this, my above was really bugged.
function changeLabel(str){
var DOMWindows = Services.wm.getEnumerator('navigator:browser');
while (DOMWindows.hasMoreElements()) {
var aDOMWindow = DOMWindows.getNext();
var myWidget = aDOMWindow.document.getElementById('widget:jid1-njALX8gXKY872g#jetpack-patchouliStatus');
if (myWidget) {
Services.appShell.hiddenDOMWindow.console.info('myWidget:', myWidget);
myWidget.setAttribute('label', str);
myWidget.setAttribute('tooltiptext', 'tooltip changed');
} else {
Services.appShell.hiddenDOMWindow.console.info('myWidget null:', myWidget);
}
}
}
It also seems that the id of your widget starts with tyour addon id name.
Now I gave you the enumerator function because that goes over all windows and you can add event listener. But really if you just want to target the one that was clicked just get the most recent window, as that will obviously hold the correct window with your widget as we just clicked there and the event listener fires on click.
Change changeLabel to this:
function changeLabel(str){
var aDOMWindow = Services.wm.getMostRecentWindow('navigator:browser');
var myWidget = aDOMWindow.document.getElementById('widget:jid1-njALX8gXKY872g#jetpack-patchouliStatus');
if (myWidget) {
Services.appShell.hiddenDOMWindow.console.info('myWidget:', myWidget);
myWidget.setAttribute('label', str);
myWidget.setAttribute('tooltiptext', 'tooltip changed');
} else {
Services.appShell.hiddenDOMWindow.console.info('myWidget null:', myWidget);
}
}
Also that Services.appShell.hiddenDOMWindow.console.info is just something nice to debug, I left it in there so you can see how it works. It logs to "Browser Console" (Ctrl+Shift+J).
As a final note I used a non-sdk solution by requiring chrome. they advise you not to do that because they want you to use the SDK functions I don't know about SDK but you can use the getEnumerator and recentWindow function by requiring window/utils it looks like:
Read window/utils article here
I'll give you non-sdk solution here but someone will have to help convert it to sdk solution. You can paste this in your code it will work though.
Im not sure how the element is inserted into the dom but I guessed.
var {Cu, Ci} = require('chrome'); //if you want to paste this into scratchpad with with Environemnt set to Browser than dont need this line, this line is for sdk
var DOMWindows = Services.wm.getWindowEnumerator(null);
while (DOMWindows.hasMoreElements()) {
var aDOMWindow = aXULWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowInternal || Ci.nsIDOMWindow);
var myWidget = aDOMWindow.querySelector('#patchouliStatus'); //im not exactly sure how the element is inserted in the dom but im guessing here
if (myWidget) {
myWidget.label = 'rawr';
}
}
I have done a firefox addon using the Addon Builder. This addon display a panel containing a web page.
The problem I have is that I would like to keep this panel displayed and probably had a close button to hide it. Actually the panel disappear when we click out of the panel.
This is the code I use to make my panel:
var HauteurPopup = 400;
var LargeurPopup = 650;
function getPanel(contentURL){
var popupPanel = require("panel").Panel({
width:LargeurPopup,
height:HauteurPopup,
contentURL: contentURL
});
return popupPanel;
}
var btn = require("toolbarbutton").ToolbarButton({
id: 'propelink-button',
label: 'Propulesez ce lien!',
image: 'https://www.users.prplk.com/img/mini-logo-propel-bar.jpg',
onCommand: function() {
if (typeof(tabs.activeTab._worker) == 'undefined') {
let worker = tabs.activeTab.attach({
contentScript: btnContentScript
});
tabs.activeTab._worker = worker;
}
tabs.activeTab._worker.port.emit("btnContentScript");
var panelPopup = myPanel.getPanel("http://example.com");
panelPopup.show();
}
});
Someone know how to keep this panel displayed and close it adding a button?
Thanks in advance
In xul based extensions there is an option in the creation of the panel to accomplish that (panel.noautohide). In firefox-addon-sdk it seems that it doesn't exist. See 595040 – Add a "isPersistent" attribute for panels
Although it is mentioned that you can do a workaround by editing panel.js, but i never tried to do that, but you may want to give it a try.
I am developing an iOS app in Appcelerator and I want to switch between windows with the use of a swipe event listener. How can I do this? The below code does not work. The current window that I "start" from contains a table.
var window = Ti.UI.currentWindow;
window.addEventListener('swipe', function() {
// Create the new window
var win = Titanium.UI.createWindow({
title: 'Contacts',
url:'contacts_simple.js'
});
// Animate the page turn
Titanium.UI.currentTab.open(win, {animated:false});
});
I think the problem is with the Ti.UI.currentWindow. Depending on the context you're working in it may not be valid.
Google 'appcelerator currentWindow', but here's a related link:
http://developer.appcelerator.com/question/5391/currentwindow
This will not be optimal and dynamic, but to start with, try referencing the window implicitly. Meaning if you did something like
var window_x = Ti.UI.createWindow({});
try
window_x.addEventListener('swipe', function() {...});