How do you change the font size on a tab?

[jchri853]

I tried the following code but findViewById(android.R.id.title) returns null. Is there a convenient way to adjust the font size of all tabs?

MaterialTabHost tabHost = (MaterialTabHost) findViewById(android.R.id.tabhost);

for (int i = 0; i < tabHost.getTabWidget().getChildCount(); i++) {
TextView tv = (TextView) tabHost.getTabWidget().getChildAt(i).findViewById(android.R.id.title);
tv.setTextSize(23);
}