I am new to flutter. Is there someone who can tell me which class to use to make a circular slider in dart in which we can get the value, change color, etc. Thanks in advance.
You might follow along with this tutorial: https://www.youtube.com/watch?v=svxUUz5mi9s - part of it includes creating a circular slider.
Related
I am trying to create iOS-style picker control in flutter, but this is not gonna work for me. I am attaching screen that I am trying to imitate. Can anyone help me with this design.
I believe what you're looking for is the CupertinoPicker widget in the cupertino library included with flutter. If that doesn't do what you need, edit your question to be more specific about why and please include your code.
I want to create the circular seek bar.The thing is, that I need a circular progress bar, where I would be able to set some values. Because my progress fill is a rainbow like gradient and i also tried many other codes and I am not able to achieve the same results using those code.after R&D i found the following link and I have seen this
https://github.com/karthikkeyan/CircularSeek
but this is in swift. i need exactly this one functionality. but my application is in objective c. so how can i implement this in objective c.
anyone can please help me for this.
Thanks
All you need is a circular slider. Here are some libraries.
https://github.com/eliotfowler/EFCircularSlider
https://www.cocoacontrols.com/controls/tb_circularslider
https://www.cocoacontrols.com/controls/circleslider
It seems that mapbox updated its ios SDK recently with some huge change.
For example, it seems that it is not possible anymore to provide a layer as a custom marker, or to animate a marker as in this example:
https://www.mapbox.com/mapbox-ios-sdk-legacy/examples/cakeyframeanimation/
It seems that every reference to that example is related to a RMM* named class which has been deprecated.
How can I implement an animation in a Mapbox's MGLMapView?
Any kind of suggestion is appreciated, from a series of png to a CAEmitterLayer, to a generic view to be used as a marker so that I could do anything I want with it.
View-based annotations/markers is a feature that will be coming in the v3.3.0 release. Once you’re able to use views, you’ll also be able to use the same Core Animation methods you’re familiar with.
If you would like to try out a pre-release version of v3.3.0, have a look at alpha 3, which has preliminary support for view-based annotations — see MGLAnnotationView.
I'm using MapBox SDK 3.1.1 for iOS, and it doesn't seem there's a way to draw a circle as an overlay (Polygons are included as primitives)
There used to be a way on the legacy SDK, but it's no longer maintained.
Can someone provide insights?
thanks!
If anyone is interested, there's currently no replacement for RMCircle (present in in 1.x version) in the 3.1 SDK.
There's a workaround described here, that uses MapBox annotations
https://github.com/mapbox/mapbox-gl-native/issues/2167#issuecomment-169265375
Look for
- (MGLPolygon*)polygonCircleForCoordinate:(CLLocationCoordinate2D)coordinate withMeterRadius:(double)meterRadius
In addition to what friedbunny suggested (and based on info in the link he posted), you can fix the zoom level, and use metersperpixelatlatitude to make an image of fixed size for your annotation. Then, use the imageForAnnotation MGLMapViewDelegate callback to provide the "overlay" as the MGLAnnotationImage.
If you want to change zoom levels with this method though, you're looking at some pretty tricky juggling of delegate methods and possibly several minor hacks.
The default background color of DateTimePicker provided by blackberry is Black. I want to change this background color to the theme of my app, which is Light blue.
How can i achieve this? I am developing for OS 5.0 and above. Please help.
As far as I know about this, you can't change the background of a datetimepicker. You cannot make a class that extends DateTimePicker and override its classes because it is an abstract class. So I guess u'll have to accept the background offered by RIM for this component.
If you check the API:
http://www.blackberry.com/developers/docs/5.0.0api/net/rim/device/api/ui/picker/DateTimePicker.html
you will see clearly that there is no Paint method or paintBackground method to override.
So for me there is no way to do that. You can use a work around method that will consist of creating a popup screen representing the object in question. Check the following two links for more help:
http://supportforums.blackberry.com/t5/Java-Development/overlapping-field-issue-on-9500/td-p/419200
Or
BlackBerry - Creating custom Date Field
There is no way that you can change the default view, if you want to change that then u have to make some stub classes where you wil manually describe the classes and the functions, for the date event and import that. like importing a jar file.