How to conduct such lines in Xamarin? - xaml

That is not just a box. Namely, with an increase towards the center.
Or maybe it is best to SVG?

Xamarin Forms ListView has the property SeparatorVisibility were you can show and hide a separator. But its a straight line.
To achieve your needs you can:
Create a custom cell and add that separator has an image resource (/svg).
Extend ListView custom renderer and personalize the separator natively.

Related

Custom button in Windows 8.1 app

I have a requirement to create a button in a Windows 8.1 app which has an icon and a text label. The icon will be a symbol from Segoe UI Symbols and the text label will be Segoe UI Semibold at a smaller text size.
I want to be able to reuse the button in different places within the app, using different icons and text labels.
How show I go about this? I could create a button and then edit the ContentPresenter to have a horizontally oriented stack panel with two TextBlocks, but then how could I reuse this? And how could I change the text in the two different text blocks?
Should I create a separate custom control with separate dependency properties for each of the textblock strings? I'm interested in hearing what you would do.
thanks
Create a simple Style. To make it easy, I would base it off the standardized AppBarButton style. You can format it to whatever size you want (I have done something similar to make a larger button or one with text on the side).
Have the main icon simply be a ContentPresenter which binds to the Content using a TemplateBinding. Make sure to set the FontFamily to Segoe UI Symbol. Have the text label pull from AutomationProperties.Name, similar to how the AppBarButton style does.
Then, whenever you want to use this just do:
<Button Style="{StaticResource MyCustomButtonStyle}"
Content="" // Where "000" is replaced by the number of the icon you wish to use.
AutomationProperties.Name="Text Label"/>
This should be extensible and easily reproducible to whatever location you need. When copying over the AppBarButton style, I suggest removing the artificial size limits (specifically the width of the main content Grid). I do suggest either giving the Text Label a fixed size or having it pull its size from the specified parent Width, so that it will Wrap correctly.
Hope this helps and happy coding!
Are you desiring to create something like for an AppBar? Take a look at AppBarButton and the style/types it supports. In Windows 8.1 we added some things around SymbolIcon specifically. Since you basically want two pieces of 'content' for your style you'll have to re-purpose one property (unless you create a custom control which doesn't sound needed for this scenario). Using AutiomationProperties.Name for the visible label is a good idea because it will also help with accessibility by default for those users.
Investigate the style for AppBarButton to get you started.

lightweight cocoa control for displaying rich text

I am new in mac development and I need a lightweight solution to display rich text:
text with different font-styles and formatting
pictures (including animations)
some controls, like buttons
picture for text background as an option
fast text formatting and rendering
I would like to use something like NSTableView with datasource and view delegates, but with the ability to select and copy text with mouse.
I can use WebView for it, but i'm not sure if this solutions will be fast enough and easy to control.
Are there any controls with such a functionality (or close enough) ?
If there is no such a thing, what should i look to be able to implement it? Can I make a transparent NSTextView over a NSTableView? Is there any way to implement text selecting through several cells in NSTableView (with help of classes like NSTextLayout etc)?
I would be very appreciated for any help and hints.
What you might be missing is NSAttributedString, look that up and then look at all the controls for methods that take/return them - just about every control supports rich text, from button labels to scrolling text frames.

Making a CustomView with a static vertical size in Cocoa

I'm making a document viewer in Objective-C, I want to have a bar at the top of the page with a bunch of buttons in it which open up menus, change pages, etc. At the moment I'm using a custom view which then just has all of the buttons inside it, but my problem is that it isn't a static vertical height, so when the window resizes it changes the size of the custom view rather than my PDFView. Is there a way I can stop it from resizing, or is there a better method I should be using to create a menu?
Thanks!
With auto layout, you can just give the view a fixed height -- from the editor menu, choose Pin, then Height. Make sure that it then only has one vertical constraint, either to the top, bottom, or centerY.
Are you using Auto-layout ? You may have to play with it.
Without seeing the code it's hard to debug the problem. Post the snippet where you're re-sizing the views if you're not using auto-layout.

Slide in/out text on label in titanium

I have a label which displays dynamic text. For example, However, I want to add a slide in/slide out feature to the text that appears on the label. How can I do that ?
I have a made an helper library for Titanium animations that you can find here https://github.com/raulriera/Animator
However, if you want to do this yourself "by hand", uou can achieve this using the 2DMatrix API http://docs.appcelerator.com/titanium/latest/#!/api/Titanium.UI.2DMatrix you want to take a look at the translate method (which is the one responsible for moving views)

Tips on implementing a custom UITextView interface on the iPhone?

I am trying to implement a control to edit text that will display the text in multiple colors. None of the solutions I have attempted yet have been good enough.
UITextView cannot accomplish this. All of the text must be the same color.
Using CoreGraphics to draw the text does not allow the text to be selected.
Using a UIWebView, DIV and PRE tags cannot be set to contentEditable on Mobile Safari.
Currently playing with using an off-screen TEXTAREA and an on-screen DIV to show the rendered text. This works pretty well, except supporting all of these at the same time seems impossible: click-to-type, click-to-move-cursor, click-and-hold-select/copy/paste.
Anyone have any tips on this predicament?
I've been trying to find any preexisting library out there that will accomplish this in a good way, to no luck. I'm open to any ideas!
Well, just pulling an idea out of my... let's say hat.
Could you put a transparent UITextfield over a view that draws the text? If the background was clear and the text color was clear the user could not perceive it but it should still respond to all commands. As the user enters and edits text you could draw the results on the view underneath.
I think the selection would work without any modification at all. When the user selected the clear text, it should create the illusion of selecting the drawn text automatically.
Like this one? StyledText http://three20.info/gfx/overview/styledtext.png It's in Three20 .
Here is an idea. I have no idea if it would work.
If you are only using colors, and not styles, the a UIWebView with colored text might layout text in exactly the same way as a UITextView. You could put a UITextView with invisible ink (text and background fully transparent) over a UIWebView and mirror the contents with colors in the html. I assume you can do scrolling with javascript along with the colored layout.