The universal windows app designer doesn't appear? - windows-phone-8

I am new to Windows development in general and I am facing a problem that doesn't appear in any of my search results.
The problem is the designer of the universal windows app disappeared - became transparent except only the borders of the virtual device, when I was trying to change the theme of the application.
I think this screenshot will explain the problem better than me:
Does any one encounter this same problem and have solved it?

Related

Windows Phone 8.1 - Draw text over photo, but without showing the photo

I'm porting an Android application I've made to Windows Phone 8.1. I want my app to do the following: pick up a photo from the gallery, put some text on it, and then save the image back to the gallery. On Android I have been able to accomplish it, but on Windows Phone 8.1 the only solution I have found is to use RenderTargetBitmap, but this solution requires to display the image on screen, but I don't want to display it.
Any ideas?
Thank you a lot
So the question can be marked as answered:
Your image doesn't necessarily need to be on the screen - you can render it behind other items (or even off the screen, but within the visual tree). I have done something similar to create custom live tiles. However, I haven't tried this method on WP8.1 yet. I did a blog post a while back for Windows 8.1 live tiles, but the technique should work for phone too (apologies for the VB.net) : grogansoft.com/blog/?p=40

Is there a radial timepicker UI Control for Windows Phone 8?

I'm looking for a radial time picker control for a Windows Phone 8 application like the Windows 8 Alarms app or the Realarm app for Windows Phone.
Please see the below picture:
Any help would be appreciated!
I don't know of anything that is designed to do this out of the box. Telerik and Syncfusion (and likely others) have radial gauges that you could likely modify to make this. Syncfusion also has a RadialMenu, which looks similar to what you are trying to do, but I can't speak for how flexible it is.
http://www.telerik.com/help/windows-phone/radgauge-ranges-radialrange.html

Sluggishness Observed while navigating between multiple screens in Worklight Application

These jquery.mobile-1.4.2.min.js and jquery-1.10.2.min.js are auto included in all of my HTML pages, while developing the UI screens using jquery mobile.
But this Auto-added JS files causes a delay/sluggishness while navigating between the multiple screens.
Is there any way to improve the sluggish behaviour?
I've used the Worklight 6.1 project you've emailed me, added the Android environment to it and ran it in the Android Emulator(!) (with API level 19 - Android 4.4) and did not observe any sluggishness.
In fact, your application does not even contain any animations. The pages simply switch from one to another. So, no slowness even in the emulator...
You'll need to create a test case application demonstrating what you are referring to because right now it is not reproducible. Also mention if you are testing it on a device or not - which device model and which Android version.

Sencha Touch/Cordova app devastated after Android Level 18 Jellybean 4.3 Update in HTC One

I am reaching out because I feel like we can't be the only ones who are experiencing this problem, however right now based on my research I feel quite alone!
Last night I got the android update (4.3) on my HTC One which I installed right away. Now the app we developed with Sencha Touch + Cordova hardly functions at all. This is after a successful submission to the app store and successful testing in multiple android devices.
Some of the issues we are experiencing:
Back button in list view no longer responds
Page transitions (left->right and right<-left) functioning bizarrely. For example the title transitions right to left while the body left to right, simultaneously.
The title on our home screen suddenly reverting to "undefined."
I know probably all we need to do is get back to the emulator and just start debugging, but we really would like to know whether anyone else has experienced problems like this and could help point us in the right direction on some solutions.
Also the problems persist after updating to the very latest version of Sencha Touch 2.3 which has Cordova integrated.
The following patch resolves the issue!
http://www.sencha.com/forum/showthread.php?273492-Back-button-broke-in-navigationview-Sencha-Touch-2.3-Android-4.3&p=1009111&viewfull=1#post1009111
Looking forward to seeing this implemented in the next Sencha Touch update.

Improve touchscreen handling on Chrome

I am working on a web app that will be run off a local server on Windows 8 on Chrome. Unfortunately, Chrome doesn't seem to handle touch events very well. For example, often instead of clicking on a button, it will select it instead. Is there any way I can make it behave more like native touchscreen apps do?
I can't make it a metro app because I need to talk to a Python service.
I've done some testing in Chrome with a touch screen and don't seem to run into this issue (of course not doubting you are though!). If you have a site I'd be more than happy to check it out.
One option is to try scaling the content larger, I'm wondering if your touch surface is very sensitive to tiny movements upon touch and treating it as a touch/scroll ie select. Try a simple test in the browser to start by increasing the size before trying any css scaling transforms (which I'm not sure how in this how well that approach would even work)
What type of hardware is it being tested on?
Can you elaborate a bit more on the python service? What part of the service makes it so you can't interact with it? Is it just an http service object or something else?