How do I get the background color of a TextView?

Question

How do I get the background color of a TextView?

When I press the TextView, I want to change the background color according to the background color that is in use.

TextView does not have a method such as:

getBackgroundResource()

Edit: I would prefer to get the resId of the background color.

Solution 1

If you want to get color code of the background try this:

if (textView.getBackground() instanceof ColorDrawable) {
    ColorDrawable cd = (ColorDrawable) textView.getBackground();
    int colorCode = cd.getColor();
}

Solution 2

In Kotlin:

    val cd = view.background as ColorDrawable
    val colorCode = cd.color

Solution 3

If you are using AppCompat use this:

ViewCompat.getBackgroundTintList(textView).getDefaultColor();

---

Side note: be careful if you cast to ColorDrawable, because it can throw a ClassCastException: android.graphics.drawable.RippleDrawable cannot be cast to android.graphics.drawable.ColorDrawable.

Comments

[OrSmolnik]

i edit my question: how i get from this the resId of the color?

[OrSmolnik]

i tried this, but after the first line in your answer i get cd is null

[Gokhan Arik]

How do you set background of your TextView? To use this code it has to be Color, not Gradient or other kind of Drawable

[OrSmolnik]

it was because i didnt set background in the first appearance. i fixed thet, but now cd.getColor() returns me -1

[OrSmolnik]

ok, its very strange. if i first set the background to color.black the getColor() returns me other number (not -1) but it still not the same resID color.black . my "if" is to check if the beckround is equals to white backround, so i replace "if (cd.getColor() == color.white)" to "if (cd.getColor() == -1)" . and it works!

[Gokhan Arik]

This numbers are constant Color IDs of the some pre-defined colors. You can see the list here : (developer.android.com/reference/android/graphics/Color.html‌​) The reason it returns -1 is that, White has -1 constant value. You will see in the list.

[Albert Vila Calvo]

Be careful: this can throw an Exception: java.lang.ClassCastException: android.graphics.drawable.RippleDrawable cannot be cast to android.graphics.drawable.ColorDrawable

[Gokhan Arik]

True. RippleDrawable wasn't introduced at the time I answered this question. You would have to check instance of background object before casting. The answer assumes you are using ColorDrawable.