How to auto adjust font size in the action bar spinner based on orientation?

Question

I wanted to place a spinner in the action bar, just like in the Gmail app. So I created the following layout.

Answer 1

They best way is to know the orientation of the device when the activity is started and use a layout depending on it.

If portrait setContentView(R.layout.layout_with_bigfont);

If lanscape setContentView(R.layout.layout_with_smallfont);

otherwise you need to set the font for that View (in this case TextView) alone dynamically using setTextSize(xdp) instead of using 2 different layouts for different orientations

Answer 2

//you need to use dimens.xml in values folder

<!-- Text size for action bar titles -->
    <dimen name="action_bar_title_text_size">18dp</dimen>
    <!-- Text size for action bar subtitles -->
    <dimen name="action_bar_subtitle_text_size">14dp</dimen>
    <!-- Top margin for action bar subtitles -->
    <dimen name="action_bar_subtitle_top_margin">-3dp</dimen>
    <!-- Bottom margin for action bar subtitles -->
    <dimen name="action_bar_subtitle_bottom_margin">5dip</dimen>

create one more folder with values-land

in that dimens.xml

 <!-- Text size for action bar titles -->
    <dimen name="action_bar_title_text_size">16dp</dimen>
    <!-- Text size for action bar subtitles -->
    <dimen name="action_bar_subtitle_text_size">12dp</dimen>
    <!-- Top margin for action bar subtitles -->
    <dimen name="action_bar_subtitle_top_margin">-2dp</dimen>
    <!-- Bottom margin for action bar subtitles -->
    <dimen name="action_bar_subtitle_bottom_margin">4dip</dimen>

Ref: go to your /<android-sdk>/platforms/android-15/data/res here you can found this.