Change action bar color in android

Question

I am using the app theme Theme.Black in my app. In this theme the action bar is gray. How I can change color of my action bar? This is my attempt:

Answer 1

if you have in your layout activity_main

<android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

you have to put

in your Activity this code

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    toolbar.setBackgroundColor(Color.CYAN);
}

Answer 2

onclick buttons c2 to fetch and change the color of action bar and notification bar according to button's background, hope this helps

int color = c2.getBackground()).getColor();
int colorlighter = -color * 40 / 100 + color;
getWindow().setNavigationBarColor(colorlighter);
getWindow().setStatusBarColor(colorlighter);
ActionBar bar = getSupportActionBar();
bar.setBackgroundDrawable(new ColorDrawable(color));

colorlighter is used to set color of notification bar a little lighter than action bar
color is the background color of button c2, according to which we change our color.

Answer 3

Updated code:

getSupportActionBar().setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.your_color)));