Develop Reference

Change Theme Dynamically from User Input in Android

I'm building a material design playground that can switch between the available pre-defined themes that can apply the color, typography and shapes to all the material design components throughout the app.
Right now, the user can choose available themes from the PreferenceScreen:
I got a NEW requirement that should allow the user to enter a value (eg. set color of colorPrimary). From the input, I would like to modify the Theme directly so that it could apply the change in the app.
How can I do this? I'm thinking of giving an option to the user something like below:
Here's a link to my sample material design playground app:
https://github.com/ciscosoriano/material-design-dynamic-theming

Seems like you need something like this android-how-to-change-application-theme-programmatically
link: android-how-to-change-application-theme-programmatically
This should be easy and there are lot of tutorials out there, don't forget to checkout
Basically what you need to do is:
apply statically defined theme(in res/values) as usual before activity is launched.
Now get the user input when activity is launched
Then get the current theme attributes using appropriate api and recolourize the ui controls dynamically in the program.
restart activity with the updated theme.
Some more link: Set theme color dynamically
You should be comfortable handling the activity lifecycle to view the updated theme when set.

Dynamic colours in an app

I have colors of text and button come dynamic form backend,
I need to change this color of text dynamically when change happens in backend all at time.
I could make it manual
textView.setTextColor(getResources().getColor(R.color.text_color));
Is there a way to change group of text color dynamically or must set every text color manually in code?
I searched for how to change theme colors dynamically at run time and i found this answer this answer.
But I also search again and I found this github
but it doesn't work on Android Marshmallow (6.0+) and it's use is discouraged! as he say.
Is there any lib or method to change the theme on runtime?

So far it's impossible and not viable because of themes are immutable.
GreenMatter becomes outdated so regretfully the answer of your question is No way.
More precisely, the color overriding at runtime is not working. There is no fix found at the moment. The future of this feature is uncertain.

Change App Color

Is there a way to replicate the color changing ability provided by QKSMS .
It allows a user to select a color and then changes the app color and everything to that color.This is all done dynamically the moment the user chooses a specific color.

You can try this cool online tool: http://android-holo-colors.com
This enables you to create many themes for app widgets with your preferred color. You can then change your app theme by saving values for your theme in SharesPreferences or something similar and apply them in onCreate of each activity you have in your app. You can also create the themes easily in styles.xml. For each view, it has its own style with its own attributes so you will need to learn how to edit the theme of each view you want by searching...
Hope that helps.
Some Examples:
ActionBar:
https://developer.android.com/training/basics/actionbar/styling.html
Buttons:
https://www.androidcookbook.com/Recipe.seam?recipeId=3307
SeekBar:
Android - styling seek bar
Switch:
How can I style an Android Switch?
And a lot more... You will have to search for what you want.

How do you handle users color settings in android?

I'm building an android app and i want to have different color themes picked by the user in the GUI. Something simple like different shades of a color.
How do you handle this? Do you save all needed colors as colors in the android resources and then depending on the color setting set the colors programmatically? Or can you some how read settings straight in the xml:s?
Or (if you can't do it via the xmls) do you store all colors in a class as public static? Which to me appears simpler if you have to change the colors programmatically.
Thoughts on the matter would be much appreciated :)

All this can be done with Themes on Android, you fill find more information reading this article:
http://developer.android.com/guide/topics/ui/themes.html

Android, change only clicked color of a button

I would like to change the default orange color that appears when someone press an Android button. I have done many searches but all I found was the use of selectors.
I understand the principle, but I don't want to modify the grey aspect of the normal button (not pressed). But using selectors force to define all characteristics of all aspects (pressed or not).
I don't know how to obtain the default aspect of buttons in the light theme, so can anyone tell me where I can find the original parameters of the light theme or at least give me another means to simply change the color of the button when clicked?

You can copy the Android's selector into your project, the one that Android sets it by default to buttons, and modify only the state when the button is pressed by just changing one single drawable.
You could find the file in \android-sdk\platforms\android-10\data\res\drawable\btn_default.xml

Sorry bro...........
i guess only selector will help you......
You must go with selector.....
and selector are reusable xmls you can use in all buttons.....:)
You can refer below link.
:)
http://developer.android.com/guide/topics/resources/drawable-resource.html#StateList

I tried to find a solution to this problem, but did not succeed.
Maybe this will help:
How to modify the default button state in Android without affecting the pressed and selected states?
Standard Android Button with a different color