My Question is quite simple: I want to add a Separator to an InkToolbar like in the Windows Ink Sketchpad:
I have already tried it with <AppBarSeparator/>
but it doesn't seems to work.
It seems that you can't directly add a separator to InkToolBar,AppBarSeparator is generally used in the AppBar or CommandBar.You can try to add a CustomToolButton to InkToolBar.Then set the line image to it and disable it.If you still want to use AppBarSeparator,you can set a commandbar and put InkToolBar in it.
Use InkToolbarCustomToolButton:
<InkToolbar x:Name="toolbar" TargetInkCanvas="{x:Bind inkCanvas}">
<InkToolbarCustomToolButton Name="lassoSelectionButton" IsEnabled="False">
<Image Source="Assets/vertical_line.png"></Image>
</InkToolbarCustomToolButton>
<InkToolbarCustomToggleButton Name="mouseInkingButton">
</InkToolbarCustomToggleButton>
......
</InkToolbar>
Use CommandBar:
<CommandBar Width="300">
<CommandBar.Content>
<InkToolbar x:Name="toolbar" TargetInkCanvas="{x:Bind inkCanvas}">
</InkToolbar>
</CommandBar.Content>
<AppBarSeparator />
......
</CommandBar>
Related
I am new to MAUI. And I haven't done anything complex with Xamarin as well.
The application I am testing with, has Shell navigation. And I can't find a way to change the toolbar items.
I would like to be able to change either the FontSize of the text, or the color of the SVG image. And I do not want those changes to affect the rest of my application, if possible. But if there is no other way, I can live with it.
I have managed to add styling to buttons, Labels etc... If styling is an option to this, it will be even better.
If I am on the wrong path, if you point me out why, I will be also grateful.
Thank you in advance!
If you want to just change a part of pages in your project. You can try to use a <Shell.TitleView> instead of the <Shell.ToolBarItem> in the content pages you want. Such as:
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="MauiAppTest.MainPage">
<Shell.TitleView>
<HorizontalStackLayout Margin="5" HorizontalOptions="End">
<Label Text="hello" TextColor="Red" FontSize="Medium" VerticalOptions="Center" HorizontalOptions="End" />
<Image Source="your image" Margin="10" Background="green"/>
</HorizontalStackLayout>
</Shell.TitleView>
You can change style of TabBar in Style.xaml in path \Resources\Style\. Search in file for Shell.TabBarForegroundColor. You will get TargetType="Shell" and this is style for AppShell.xaml.
I've been searching for days now for a guide on how to create the custom playback controls for LibVLCSharp that everyone seems to talk about, which I never found a guid for.
I simply want to create other buttons with event handlers for the bottom playback control panel, I tried this but throws a System.NullReferenceException exception on startup while getting into break mode...
<vlc:MediaPlayerElement MediaPlayer="{Binding MediaPlayer}" LibVLC="{Binding LibVLC}">
<vlc:MediaPlayerElement.PlaybackControls>
<vlc:PlaybackControls>
<vlc:PlaybackControls.ControlTemplate>
<ControlTemplate>
<Grid>
<StackLayout Orientation="Horizontal" HorizontalOptions="CenterAndExpand">
<Button Grid.Column="0" Text="Test 1"/>
<Button Grid.Column="1" Text="Test 1"/>
<Button Grid.Column="2" Text="Test 1"/>
</StackLayout>
</Grid>
</ControlTemplate>
</vlc:PlaybackControls.ControlTemplate>
</vlc:PlaybackControls>
</vlc:MediaPlayerElement.PlaybackControls>
</vlc:MediaPlayerElement>
I want it to act just like the original one (Auto hides, overlays on tapping, etc...) but with my own layout and controls. I also thought about using the existing one and try to override their handler to implement my own code and override the text property for each button to change its icon but no luck of finding any help.
Thanks in advance ^_^
The code you are interested in is here: https://code.videolan.org/videolan/LibVLCSharp/-/blob/3.x/src/LibVLCSharp.Forms/Shared/Themes/Generic.xaml
I also thought about using the existing one and try to override their handler to implement my own code and override the text property for each button to change its icon
That'd be the way to go.
This previous SO question might answer your question: https://stackoverflow.com/a/14217500/4064749
Just create a new Style based on PlaybackControlsStyle, override what you want and then set it on the PlaybackControls element.
I created https://code.videolan.org/videolan/LibVLCSharp/-/issues/309 recently to track the need of a tutorial to customize the MediaElement.
Further docs on style inheritance: https://learn.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/styles/xaml/inheritance
I finally found the problem which was making exceptions, when I create custom control template which completely correct, the MediaPlayerElement code behind by LibVLCSharp developers itself cannot find the elements with the names defined anymore as they used hardcoded names for the buttons and views instead of using bindings and dynamic setters.
Thus, several workarounds could be made to fix such issue, here are some of my ideas:
Use the generic style documented here and modify it without removing any elements but rather hide them out or overlay them.
Create your own style with controls obtaining the same names of the original ones.
Find a way to modify or maybe create a whole new playback control element using the original one which can be found here and here.
Thanks to mfkl's answer which helped me find out how everything worked under the hood to come up with the explaination, even though this took me a couple of days to figure out.
I want to take RelativeLayout.XConstraint with some platform specific value. And also i want to do this in xaml with OnPlatform keyword.
I tried this one without luck,
<RelativeLayout>
<RelativeLayout.XConstraint>
<OnPlatform x:TypeArguments="Constraint" Android="{ConstraintExpression Type=Constant,Constant=6" iOS="{ConstraintExpression Type=Constant,Constant=3}" />
</RelativeLayout.XConstraint>
</RelativeLayout>
And also tried this one https://forums.xamarin.com/discussion/57281/how-can-i-make-platform-specific-relativelayout-xconstraint-in-xaml but it is showing exception "Constraints as specified contain an unsolvable loop".
Here what would be the x:TypeArguments for RelativeLayout.XConstraint or any other approach? Looking forward to any hints/suggestion on this.
You are applying the constraint to the RelativeLayout itself, but constraint are meant to be applied on items of the layout, like this.
<RelativeLayout>
<Label Text="Foo">
<RelativeLayout.XConstraint>
<OnPlatform x:TypeArguments="Constraint" Android="{ConstraintExpression Type=Constant,Constant=6}" iOS="{ConstraintExpression Type=Constant,Constant=3}" />
</RelativeLayout.XConstraint>
</Label>
</RelativeLayout>
Also, you're missing a closing curly brace (}) on the first ConstraintExpression markup.
I tested this, it works just fine with XamlC turned off.
If you are running XF 2.3.3, you might be hitting https://bugzilla.xamarin.com/show_bug.cgi?id=48242, but a fix exists (https://github.com/xamarin/Xamarin.Forms/pull/580) and will be released as part of the coming service release.
Greeting,
I'm developing an apps for Windows Phone 8.1 and face some problem with ListView.
I wanted to place a button for the FIRST item in ListView, but it seem like I can't align center the button.
Below is the code I use currently:
<ListView>
<Button Content="Jio!" Height="6" Width="362"/>
<ListViewItem Content="ListViewItem"/>
</ListView>
Adding horizontalalignment='center' just wont work for the button.
The reason I want to do this is because I wanted the button to scroll together with the list, hence I'm placing it inside the ListView.
Please advice what can I do to achieve my purpose, thanks!
I recommend using the ListView.Header content to place such a button instead of adding it as a child directly.
<ListView>
<ListView.Header>
<Button ... HorizontalAlignment="Center" />
</ListView.Header>
</ListView>
By default, the ListViewItems are left-aligned. You will eventually have to replace their Template in order to center-align it (HeaderTemplate Property).
I currently have a listBox in a WP7 application that uses databinding to populate it. The problem I'm having though is with this particular line:
<Hyperlink NavigateUri="{Binding LinkUrl}" TargetName="_blank">{Binding Name}</Hyperlink>
It seems that I can't bind things in this way (outside of an element's attributes). All this does is create a hyperlink with the literal text {Binding Name} linked to the url. Instead what I'm looking for is for it to use the actual Name variable in its place.
I've tried googling for an answer and looked into the Inlines attribute, but I keep coming up empty handed.
Any help would be appreciated
In WPF, the space between the tags is usually the 'content' (but not always) and bindable via the Content property. I'm unfamiliar with <Hyperlink> in Windows Phone, but a <HyperlinkButton> should work just as well.
<HyperlinkButton NavigateUri="{Binding LinkUrl}" TargetName="_blank" Content="{Binding Name}"/>
EDIT: For a <Hyperlink> in a <RichTextBox> try this:
<RichTextBox>
<Paragraph>
<Hyperlink>
<Hyperlink.Inlines>
<Run Text="{Binding Name}"/>
</Hyperlink.Inlines>
</Hyperlink>
</Paragraph>
</RichTextBox>