如何以编程方式更改工具栏文本的颜色

Question

My toolbar title needs to be able to change color depending on button click. For example, the default color for the toolbar title is white, but if I press a button, I want it to change to red for example.

I tried using the following:

SpannableString title;
title.setSpan(new ForegroundColorSpan(Color.argb(1, 255, 64, 129)), 0, remainingTitle.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

But for some reason the color just does not want to change. It used to work with actionbar, but for some reason this same method does not work with toolbar.

Answer 1

You can use something like this:

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
toolbar.setTitle("Hello");
toolbar.setTitleTextColor(Color.RED);//for red colored toolbar title

Answer 2

Toolbar can change its text color. So, just call Toolbar.setTitleTextColor(int color) .

If you want to span a text, you need to call TextView.setText(SpannableString) . Here is an example:

Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
Spannable wordtoSpan = new SpannableString("I know just how to whisper, And I know just how to cry,I know just where to find the answers"); 
//Handle with your Span here. Like change color of part text, bold or italic part text, add hypertext and something like that.
wordtoSpan.setSpan(new ForegroundColorSpan(Color.BLUE), 15, 30, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
toolbar.setText(wordtoSpan);

Answer 3

Using the v7 appcompat library you can call setTitleTextColor() on the Toolbar

if (actionBarToolbar != null)
    actionBarToolbar.setTitleTextColor(Color.RED);

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couple letters out of the entire title :

getActionBar().setTitle(Html.fromHtml("<font color='#ff0000'>YourColorText</font>") + "tittle");