Develop Reference

How to animate the color of the whole screen (all visible views/layouts) when changing to NightMode in Android?

I know there is ObjectAnimator / ValueAnimator for Property Animation in Android, and also one can set the system-wide night mode with UiModeManager.setNightMode(int):
https://developer.android.com/reference/android/app/UiModeManager#setNightMode(int)
How could we make a color animation when switching from DayMode to NightMode? (Currently I'm using the latest Huawei phone and find no animation there, not sure if other Android phone has this feature?)

try using MotionLayout with keyTrigger
check the documentation: https://developer.android.com/reference/android/support/constraint/motion/MotionLayout#keytrigger

Hi I think the best you can do is create a light and dark theme for your app in the style.xml file.
here is a github link of someone who achieved this with a simple code example. there is even a video of how it will look.
it seems like the animation is some android default fade_in/fade_out anim but personally i think it looks nice enough. let me know if this works for you

How can you recreate this?

I need to recreate something exactly like this. A bar with a slider and with various colors, exactly the same. I was looking for a bit 'but I can not find a way to do it or anything like that. Can anyone give me a track to work on? Thank you!

What you're looking for is
Android seekbar
And then to style it you would probably end up doing like this so answer
https://stackoverflow.com/a/27035469/2880747
or this one
Custom seekbar (thumb size, color and background)
I personally used the latter, and it was working great :)

How would I draw this shape in Android using xml?

I'm porting one of my iOS apps over to Android (which I'm pretty new to), and I was wondering how I would draw this shape in Android using XML:
I want to recreate the shape (the white object) at the bottom of a tableView. The image attached is a screenshot of the bottom of a UITableView.
Any help would be greatly appreciated if you need any more info just let me know.
Thanks
EDIT:
Sorry I wasn't totally clear, I'm actually trying to recreate the slight arch at the bottom of the table. Since it's so slight, you may not be able to see it with a quick glance.

It seams to me that you want to "lift" your table up a little bit. If so, you have to implement this attribute to your tableView:
android:elevation="2dp"
or in java:
tableview.setElevation(2);

My opinion when reading this question: Stop trying to make your android apps look like iOS apps !!!
If you still want to do it.
Just have the background color for your activity to that color and set the layout_margin to either 2 or 4.
It should give you your desired effect.

seekbar issues when using custom thumb

I am having troubles with a seek bar, i am trying to create an audio settings fragment but when i customize my seekbar thumb i noticed that the progress does not start and end in where i would like to.
I tried lot of things but i cannot find the solution.
I would also like to add white lines in the background like from 1 to 10.
Thanks for the help

seems like this simple line fixed the thing:
android:thumbOffset="5dp"
Thanks anyway and hope this can help someone.

Apply a gradient to a listview in android

I'm trying to use a listview in my application with a gradient from the bottom.
I do not want to use the gradient in the background, I like to use it in the listview.
To try to explain better, I attached a picture of what I want.
The background will show images that will change.
I searched a lot and made ​​several tests, but without success.
I appreciate any help.
Thanks and regards

Android has something built in for that. It is called fading edge. The two XML properties are android:fadingEdgeLength and android:requiresFadingEdge. If you were hoping to have the image gradient change, I don't think they are dynamic.