Cannot set Button background color in Android Studio

[brentc]

Can't change the button background and onClick to execute the Java code doesn't work

 

[brentc]

I got the onClick to work. I didn't have the word android: to the left of onClick - silly me.

But I still can't change the background color.

 

[GameTheory]

Using onClick in xml has been deprecated. You should be creating your buttons in Java. Something like this in your onCreate.

Button btn = findViewById(R.id.myBtn);
btn.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        // do some stuff
    }
});

Add the id to your button xml layout instead of having onClick.

android:id="@+id/myBtn"

As for the background color, I don't remember too well since I replaced buttons with the CardView which allows you to do fancier stuff.

In CardView you choose your background like so.

card_view:cardBackgroundColor="?attr/colorPrimary"

or...

card_view:cardBackgroundColor="#FFFFFF"

So with Buttons it should be something similar.

android:BackgroundColor="?attr/colorPrimary"

or...

android:BackgroundColor="#FFFFFF"

Cheers.

 

[brentc]

The XML is

android:backgroundTint="#FF00FF"