Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
536 views
in Technique[技术] by (71.8m points)

android - Change ActionBar Background Color in code from Navigation List

I want to change the color of the Action Bar background when the user chooses a selection in the Navigation List.

Currently, my code looks like this:

@Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
        ColorDrawable colorDrawable = new ColorDrawable();
        ActionBar actionBar = getActionBar();
        if(itemPosition == 0)
        {
            colorDrawable.setColor(0xffFEBB31);
            actionBar.setBackgroundDrawable(colorDrawable);
            return true;
        }
        if(itemPosition == 1)
        {
            colorDrawable.setColor(0xff9ACC00);
            actionBar.setBackgroundDrawable(colorDrawable);
            return true;
        }
        return false;
    }

However, the first time I select itemPosition 1 in the Navigation List, it changes the ActionBar color to white.

enter image description here
The second time I click the itemPosition 1 in the Navigation List, I have no issue.

enter image description here
Could anyone tell me why this is and how I can fix the problem? Thank you for the help!

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Try using this code:

ColorDrawable colorDrawable = new ColorDrawable(Color.parseColor("#ffFEBB31"));
actionBar.setBackgroundDrawable(colorDrawable); 

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...