Changing layout onOrientationChange - sencha-touch

Is there a currently supported way to change layouts according to device orientation?
The following code returns this error:
onOrientationChange: function () {
this.remove();
this.setLayout( Ext.Viewport.getOrientation() == 'landscape' ?
{ type: 'hbox', pack: 'center', align: 'stretch' } : { type: 'vbox', align: 'stretch', pack: 'center' } );
},
"Replacing a layout after one has already been initialized is not currently supported."
Please any one give me suggestion.

Check out the code for the Sencha Meetcha app on GitHub.
What you may have to do, since replacing a layout is unsupported, is use some CSS tricks and when the orientation changes, remove the old cls and apply the new one.
I haven't tried this myself but the demo app seems to do layout changes very well.
Code snippet included
orientationCls: ['home-portrait', 'home-landscape'],
doOrientation: function() {
var me = this,
orientation = Ext.Viewport.getOrientation(),
letter = orientation.charAt(0),
items = this.getItems().getRange(),
i = 0,
ln = items.length,
item, el, top, left;
me.element.removeCls(me.orientationCls);
me.element.addCls('home-' + orientation);
for (; i < ln; i++) {
item = items[i];
top = item.initialConfig[letter + 'top'];
left = item.initialConfig[letter + 'left'];
el = item.element;
if (el) {
el.setBox({
top: top,
left: left
});
}
}
}
Hope this helps

Related

Alloy and require external JS

Right now I have a function in my alloy.js file that is a global.
Alloy.Globals.indicator = function(parent)
{
var view = Ti.UI.createView({
width: '100%',
height: '100%',
backgroundColor: '#000',
opacity: 0.6,
visible: false
});
function osIndicatorStyle()
{
style = Ti.UI.iPhone.ActivityIndicatorStyle.PLAIN;
if ('iPhone OS' !== Ti.Platform.name) style = Ti.UI.ActivityIndicatorStyle.DARK;
return style;
};
var activityIndicator = Ti.UI.createActivityIndicator({
style: osIndicatorStyle(),
height: Ti.UI.FILL,
width: 100
});
view.add(activityIndicator);
parent.add(view);
function openIndicator()
{
view.visible = true;
activityIndicator.show();
}
view.openIndicator = openIndicator;
function closeIndicator()
{
activityIndicator.hide();
view.visible = false;
}
view.closeIndicator = closeIndicator;
return view;
};
I'd rather not have this large function as a global and instead import it to the files I need using require.
I have searched and cannot figure out first, where to place this file and second how to actually "require" it.
All this simply does is create a view that acts as a modal view with a activity indicator. The function also includes two function to show and hide it.
Make a folder called "lib" inside the "app" folder.
Inside this folder, make a file called whatever you like e.g. functions.js:
var functionName = function(){
//your function code here
}
exports.functionName = functionName;
In your controller:
var functions = require('functions');
functions.functionName();
You might want to also look at Widgets which are re-usable components complete with view/controller/styles as I think this would fit your requirement slightly better.
Link to docs

Create custom picker control

See screenshot of custom picker:
I know there isn't a way to style the picker control in Titanium. This picker only needs to work on iOS (iPad only). I was thinking I could hack the TableView control to use instead of the picker to achieve the style desired. Is that reasonable? How would I snap the TableViewRows so one is always in the center like seen in typical picker controls?
that's a tough one i would say you just only need views and labels and the swipe event (you can recognize if some one swipe up and down ) and just changes the labels. you can do this with a callback function i hope this code will help you (we have created a custom picker with this code)
using alloy
XML
<View id="numOfIntrusionsPickerContainer" class="compositeWrapperPicker noMargins" >
<View id="numOfIntrusionsButtonContainer" class="horizontalWrapper"></View>
CSS
".compositeWrapperPicker" : {
height: Ti.UI.SIZE,
layout: "composite",
width:Ti.UI.SIZE
},
".horizontalWrapper" : {
width: Ti.UI.SIZE,
height: Ti.UI.SIZE,
layout: "horizontal"
},
JS
// INSTANTIATION
var args = arguments[0] || {};
var widthValue = 120;
var pickerEnabled = true;
if(args.width != null){
widthValue = args.width;
}
if(args.isEnabled != null){
pickerEnabled = args.isEnabled;
}
// STYLING
// ADDITIONS
// pressed arg can be: true,false,null. false & null are equal
// true = 'yes' is Pressed at creation, false/null = 'no' is pressed
var btn_main = Ti.UI.createButton({
top: 5,
bottom: 0,
left:0,
right:5,
height: 45,
enabled: pickerEnabled,
width: widthValue,
borderRadius: 5,
backgroundImage: "/images/bttn_gray_flex.png",
backgroundSelectedImage : "/images/bttn_gray_press_flex.png",
backgroundFocusedImage : "/images/bttn_gray_press_flex.png"
});
var picker_divider = Ti.UI.createImageView({
right: 43,
bottom:2,
touchEnable:false,
focusable:false,
image: "/images/Divider_picker.png"
});
var picker_arrows = Ti.UI.createImageView({
right: 16,
top: 17,
touchEnabled: false,
focusable: false,
image: "/images/bttn_selector_arrow.png"
});
$.pickerContainer.add(btn_main);
$.pickerContainer.add(picker_divider);
$.pickerContainer.add(picker_arrows);
// CODE
// LISTENERS
if(args.callBack != null){
btn_main.addEventListener("click",function(_event){
args.callBack(_event);
});
}

FullCalendar and Flot Resize Conflict

I've successfully integrated both a Flot line graph and an instance of FullCalendar into my site. They are both on separate pages (although the pages are loaded into a div via AJAX).
I've added the Flot Resize plugin and that works perfectly, re-sizing the line graph as expected. However, it seems to cause an error when resizing the calendar.
Even if I load the calendar page first, when I resize the window I get this error in the console (also, the calendar does not resize correctly):
TypeError: 'undefined' is not an object (evaluating 'r.w=o!==c?o:q.width()')
I was struggling to work out where the error was coming from, so I removed the link to the Flot Resize JS and tried again. Of course the line graph does not resize, but when resizing the calendar, it works correctly.
The div containers for the two elements have different names and the resize function is called from within the function to draw the line graph (as required).
I have tried moving the link to the Flot Resize plugin into different places (i.e. above/below the fullCalendar JS, into the template which holds the graph), but all to no avail.
Does anyone have any idea where the conflict might be and how I might solve it??
Thanks very much!
EDIT: It seems that the error is also triggered when loading the line graph (flot) page AFTER the fullcalendar page even without resizing the window.... Now I am very confused!
EDIT 2: The code which draws the line graph. The function is called on pageload and recieves the data from JSON pulled off the server. When the graph is loaded, I still get the error about shutdown() being undefined.
function plotLineGraph(theData){
var myData = theData['data'];
var myEvents = theData['events'];
var myDates = theData['dates'];
var events = new Array();
for (var i=0; i<myEvents.length; i++) {
events.push(
{
min: myEvents[i][0],
max: myEvents[i][1],
eventType: "Calendar Entry",
title: myEvents[i][2],
description: myEvents[i][3]
}
);
}
function showTooltip(x, y, contents) {
$('<div id="tooltip">' + contents + '</div>').css( {
position: 'absolute',
display: 'none',
top: y + 5,
left: x + 5,
border: '1px solid #fdd',
padding: '2px',
'background-color': 'black',
opacity: 0.80
}).appendTo("body").fadeIn(200);
}
var previousPoint = null;
$("#placeholder").bind("plothover", function (event, pos, item) {
$("#x").text(pos.x.toFixed(2));
$("#y").text(pos.y.toFixed(2));
if ($("#enableTooltip:checked").length == 0) {
if (item) {
if (previousPoint != item.dataIndex) {
previousPoint = item.dataIndex;
$("#tooltip").remove();
var x = item.datapoint[0].toFixed(2),
y = item.datapoint[1].toFixed(2);
if(item.series.label != null){
showTooltip(item.pageX, item.pageY,
item.series.label + " of " + y);
}
}
}
else {
$("#tooltip").remove();
previousPoint = null;
}
}
});
var d1 = [
myData[0], myData[1], myData[2], myData[3], myData[4],
myData[5], myData[6], myData[7], myData[8], myData[9],
myData[10], myData[11], myData[12], myData[13], myData[14],
myData[15], myData[16], myData[17], myData[18], myData[19],
myData[20], myData[21], myData[22], myData[23], myData[24],
myData[25], myData[26], myData[27], myData[28], myData[29]
];
var markings = [
{ color: '#FFBDC1', yaxis: { from: 0, to: 2 } },
{ color: '#F2E2C7', yaxis: { from: 2, to: 3.5 } },
{ color: '#B6F2B7', yaxis: { from: 3.5, to: 5 } }
];
$.plot($("#placeholder"), [
{label: "Average Daily Rating", data: d1, color: "black"}
], {
events: {
data: events,
},
series: {
lines: { show: true },
points: { show: true }
},
legend: { show: true, container: '#legend-holder' },
xaxis: {
ticks:[
myDates[0], myDates[1], myDates[2], myDates[3], myDates[4],
myDates[5], myDates[6], myDates[7], myDates[8], myDates[9],
myDates[10], myDates[11], myDates[12], myDates[13], myDates[14],
myDates[15], myDates[16], myDates[17], myDates[18], myDates[19],
myDates[20], myDates[21], myDates[22], myDates[23], myDates[24],
myDates[25], myDates[26], myDates[27], myDates[28], myDates[29]
],
},
yaxis: {
ticks: 5,
min: 0,
max: 5
},
grid: {
backgroundColor: { colors: ["#fff", "#eee"] },
hoverable: true,
clickable: true,
markings: markings
},
selection: {
color: 'white',
mode: 'x'
},
});
$('#placeholder').resize();
$('#placeholder').shutdown();
}
EDIT 3:
The calendar is called like this:
function showCalendar() {
var date = new Date();
var d = date.getDate();
var m = date.getMonth();
var y = date.getFullYear();
$('#fullcalendar').fullCalendar({
header: {
left: 'prev',
center: 'title',
right: 'next'
},
clickable: true,
firstDay: 1,
eventSources: [
{
url: '/populate-calendar/{{theProductUuid}}/',
color: 'black',
data: {
text: 'text'
}
}
],
eventClick: function(calEvent, jsEvent, view) {
var startDate = $.fullCalendar.formatDate(calEvent.start, 'yyyy-MM-dd');
var endDate = $.fullCalendar.formatDate(calEvent.end, 'yyyy-MM-dd');
var eventId = calEvent.uuid;
$('#modal-event-title').text(calEvent.title);
$('#edit-event-name').val(calEvent.title);
$('#edit-start-date').val(startDate);
$('#edit-end-date').val(endDate);
$('#edit-event-text').val(calEvent.text);
$('#edit-event-btn').attr('data-uuid', eventId);
$('#modal-edit-event').on('click', '#delete-btn', function(){
deleteCalendarEvent(eventId);
});
$('#modal-edit-event').modal();
},
});
}
The AJAX to load the page containing the flot chart:
function loadDetailedReports(uuid){
$('#product-content').fadeOut('slow', function(){
$('#product-content').empty();
$('#whole-product-sub-nav .active').removeClass('active');
$('#detailed-reports-content').load('/detailed-reports/' + uuid + '/', function(){
$('#detailed-reports-btn').addClass('active');
$('#detailed-reports-content').fadeIn('slow', function(){
if (authorized){
setLocationHash('loadDetailedReports&' + uuid);
getChartData(uuid);
} else {
setLocationHash('');
}
});
});
});
}
And the AJAX to load the page containing the calendar:
function loadCalendar(uuid){
$('#detailed-reports-content').empty().hide();
$('#product-content').fadeOut('slow', function(){
$('#whole-product-sub-nav .active').removeClass('active');
$('#product-content').load('/calendar/' + uuid + '/', function(){
$('#calendar-btn').addClass('active');
$('#product-content').fadeIn('slow', function(){
if (authorized){
setLocationHash('loadCalendar&' + uuid);
} else {
setLocationHash('');
}
showCalendar();
});
});
});
}
The calls to .resize and .shutdown are there because I was under the impression that they are necessary to achieve the resizing function and in response to your earlier comment regarding shutdown...... They're quite possibly n00b errors........?!?!
It looks like this is triggering on line 198 of jquery-resize:
data.w = w !== undefined ? w : elem.width();
This sounds like a race-condition stemming from the way you load different content into the same div. Flot binds the resize event to the chart div, and only un-binds it if the plot is destroyed cleanly.
EDIT: Looking at your code, my first suggestion would be to get rid of the resize and shutdown calls at the end of plotLineGraph. The resize plugin doesn't require any setup; it hooks into Flot to attach automatically to any new plot. So your call to resize is actually to jQuery's resize event trigger, which may be what's causing the error.
EDIT #2: I'm still not clear on your structure, but to generalize: anywhere that you might be getting rid of #placeholder (via emptying its parent or anything like that) you should first call shutdown on the plot object. If you aren't keeping a reference to it, you can do it like this: $("#placeholder").data("plot").shutdown(); but then have to account for the fact that it's undefined prior to the creation of your first plot.
If that still doesn't work, I'd need to see a live (simplified) example to make any further suggestions.

NumberSpinner constraints not working in DataGrid

I am using inline editing of enhancedgrid cells and have a NumberSpinner element. The constraints of this numberspinner don't work when editing inline. The required property works fine though.
My code:
{field: 'msorder', width: '10%', name: 'Milestone Order',editable: true, type: dojox.grid.cells._Widget, widgetClass: dijit.form.NumberSpinner, widgetProps: {required:true,smallDelta:1, editorParams:{constraints:{ min:-1000, max:1000, places:0 }} }}
I have also tried:
{field: 'msorder', width: '10%', name: 'Milestone Order',editable: true, type: dojox.grid.cells._Widget, widgetClass: dijit.form.NumberSpinner, widgetProps: {required:true,smallDelta:1, constraints:{ min:-1000, max:1000, places:0 } }}
There is an easier solution, guys:
constraint:{min:0,max:24}
{field: "hours", name: "Stunden",type: dojox.grid.cells._Widget, widgetClass: dijit.form.NumberSpinner, constraint:{min:0,max:24}, widgetProps: {smallDelta:0.25, intermediateChanges:true,}},
It has to be outside of widgetProps and in singular...
I don't know what version of Dojo you use, but there is known bug in 1.6 that constraints are ignored in grid widgets. However, I solve that problem doing a little overwriting standard NumberSpinner.
dojo.require("dijit.form.NumberSpinner");
dojo.addOnLoad(function() {
dojo.declare("mySpinner", [ dijit.form.NumberSpinner], {
validator: function(v, c){
var MIN= -1000;
var MAX = 1000;
c.min= MIN;
c.max = MAX ;
return ((v < MAX ) && (v > MIN));
},
});
var dateBox = new mySpinner({}).placeAt('foo');
dateBox.set("value", 1000);
});
(Now, in your grid structure you should use mySpinner of course, and it should do the trick).
Demo: http://jsfiddle.net/tvUaK/135/
I used another way to solve that problem. I define the type of cell as Widget and then I create the widget on get method.
{
field: 'msorder',
width: '10%',
name: 'Milestone Order',
editable: true,
type: dojox.grid.cells._Widget,
get: function(rowIndex, item) {
var store = this.grid.store,
value = store.getValue(item, 'value');
this.widget = new dijit.form.NumberSpinner({ value:0,
constraints:{ min:-1000, max:1000 }
});
return value;
}
}
With this implementation I was able to set different constraints for each cell on the grid.

Attaching an Event Listener

I've just finished creating a meticulously generated grid of icons (imageViews) and now I need to be able to do something with them. What I'm finding, though, is that the event listener I'm trying to bind isn't getting bound. Window loads, my icons are displayed nicely, but they aren't clickable.
Can anyone see what I'm missing? The code below is a fully functional (except for the part that doesn't function) file. You should be able to copy it into a test app and load it right up (may be iPhone-only at the moment).
Any insight would be much appreciated.
// this sets the background color of the master UIView (when there are no windows/tab groups on it)
Ti.UI.setBackgroundColor('#000');
//
// create base UI tab and root window
//
var win = Ti.UI.createWindow({
backgroundColor:'#fff',
layout: 'vertical',
navBarHidden: true,
});
// icon grid
var icons = [
{ image: '/images/ico_generic.png', label: 'Hospital Locations', url: 'http://google.com' },
{ image: '/images/ico_generic.png', label: 'Tobacco Free Campus', url: 'http:://robwilkerson.org' },
{ image: '/images/ico_generic.png', label: 'ER Wait Times', url: 'http://letmegooglethatforyou.com' },
{ image: '/images/ico_generic.png', label: 'Make a Donation', url: 'http://flickr.com/photos/robwilkerson' },
{ image: '/images/ico_generic.png', label: 'Condition Search', url: 'http://facebook.com' },
{ image: '/images/ico_generic.png', label: 'Video Library', url: 'http://google.com/reader' },
{ image: '/images/ico_generic.png', label: 'Financial Help', url: 'http://stackoverflow.com' },
{ image: '/images/ico_generic.png', label: 'Patient Forms', url: 'http://github.com' }
];
// put the grid in a scrollable view
var iconGrid = Ti.UI.createScrollView({
layout: 'vertical',
});
// incoming properties we want customizable
var cols = 3;
var icoW = 57;
var icoH = 57;
// Grid
var xSpacer = 10; // horizontal space b/t icons
var ySpacer = 10; // vertical space b/t icons
var rows = Math.ceil( icons.length / cols ); // how many rows?
// Container width = 1/3 of the viewport minus the icon widths and spacers
var containerW = Math.floor( ( Ti.Platform.displayCaps.platformWidth - ( xSpacer * ( cols + 1 ) ) ) / 3 );
// Container height = icon height + label spacer + label height
var containerH = icoH + ySpacer + 15;
// Row height = icon height + top spacer + bottom spacer + label spacer + 15 (label height)
var rowH = containerH + ( 2 * ySpacer );
// Incrementing values
var i = 0;
var viewHeight = 0;
for( var y = 0; y < rows; y++ ) {
var thisRow = Ti.UI.createView({
className: 'grid',
layout: 'horizontal',
height: rowH,
touchEnabled: false,
});
viewHeight += rowH;
for( var x = 0; x < cols && i < icons.length; x++ ) {
var container = Ti.UI.createView({
left: xSpacer,
height: containerH,
top: ySpacer,
width: containerW,
});
var icon = Ti.UI.createImageView({
left: ( containerW - icoW ) / 2,
height: icoH,
image: icons[i].image,
top: 0,
width: icoW,
});
var label = Ti.UI.createLabel({
// borderColor: '#00f',
font: { fontSize: 12 },
height: 15,
text: icons[i].label,
textAlign: 'center',
top: icoH + ySpacer,
width: containerW,
});
icon.addEventListener( 'click', function( e ) {
alert( 'Icon ' + i + ' was clicked' );d
});
container.add( icon );
container.add( label );
thisRow.add( container );
i++;
}
iconGrid.add( thisRow );
iconGrid.height = viewHeight;
}
win.add( iconGrid );
win.open();
You can also apply an event listener to the "view" itself. The reason being is, if you constantly add the same event listener to every single view, you'll cause the device's memory to become smaller and smaller, especially in cases where you'll have a larger data set.
My suggestion to you is this:
Add your own property to the imageView, like an "id" or something. So something like:
Ti.UI.createImageView({image: 'path/to/image.png', id: 'array_key'});
Once you've done that, you can add an event listener to the parent view, in this case your imageView.
view.addEventListener('click', function(e) {
alert(e.source.id + ' was clicked');
});
That way you have one event listener that can handle all the imageView events.
This one's on me. In my learning process, I went through a couple of different solutions to display a grid of icons. In one of the early iterations, I had to disable touch for the row (it was a tableView attempt). Several iterations later I got the display right, but disabling touch access on the row killed my ability to "click" the icons.
I was so far down the road that I didn't even realize that property was still in place until a new set of eyes pointed it out to me. Once I removed that property on thisRow, the event listeners got bound properly.
I am adding some line of code. What I have done is like created the grid of images and when you click, you will be able to that image.
{
"body": [
{
"type": "photo",
"order": 1,
"photos": [
{
"thumbnail": "http://www.flower.com/version_2.0/files/photos/thumbnails/745178756-_-1331130219.jpg",
"photo": "http://www.flower.com/version_2.0/files/photos/745178756-_-1331130219.jpg"
},
{
"thumbnail": "http://www.flower.com/version_2.0/files/photos/thumbnails/58062938-_-1337463040.jpg",
"photo": "http://www.flower.com/version_2.0/files/photos/58062938-_-1337463040.jpg"
},
{
"thumbnail": "http://www.flower.com/version_2.0/files/photos/thumbnails/1368715237-_-1337463149.jpg",
"photo": "http://www.flower.comversion_2.0/files/photos/1368715237-_-1337463149.jpg"
},
]
},
],
"status": true
}
It was response I was getting from the server.
Now for Making it is in grid and for clickable image, I am going to paste the code below. Note grid is done for 320 px width.
var xhr = Ti.Network.createHTTPClient({
onload : function(e) {
var response = JSON.parse(this.responseText);
var myObjectString = JSON.stringify(response);
Titanium.API.info('myObjectString--->: ' + myObjectString)
var myArray = response.body;
var objectArray = [];
var k = 5;
for (var i = 0; i < myArray[0].photos.length/5; i++) {
var l = 0+i*5; var m = 0 for (var j = l; j < k; j++) {
var thumb = Ti.UI.createImageView({
image:myArray[0].photos[j].thumbnail,
largeImage:myArray[0].photos[j].photo,
height:60,
tag:j,
width:60,
top:5*(i+1)+60*i,
left:3*(m+1)+60*m,
});
objectArray.push(thumb);
m++;
scroll.add(thumb);
thumb.addEventListener('click' ,function(e)
{
for(var i =0;i<objectArray.length;i++)
{
if(e.source.tag==objectArray[i].tag)
{
var LargeImageView = Ti.UI.createWindow({
backButtonTitle:'Image',
barColor:'#000',
backgroundColor: '#fff',
backgroundImage:'./Images/background.png',
url:'/More/DetailsImage.js',
image:objectArray[i].largeImage,
ImageArray:objectArray,
index:i,
});
Titanium.UI.currentTab.open(LargeImageView,{animated:true,modal:true});
break;
}
}
}); } l=k+5; k=k+5;
} } });