I have some difficulties with setting up a "theme switcher" programmatically.
I would like to switch themes from app (between White (Theme.Light.NoTitleBar) and Dark (Theme.Black.NoTitleBar)) and what I do is:
I set a SharedPreference:
final String PREFS_NAME = "MyPrefsFile";
final SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
final SharedPreferences.Editor editor = settings.edit();
and than I have a two buttons to switch themes (second one is almost identical)
Button ThemeWhite = (Button) findViewById(R.id.ThemeWhite);
ThemeWhite.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
editor.putBoolean("Theme", false);
editor.commit();
System.exit(2);
}
});
and in begging of each activity I check SharedPreference
boolean theme = settings.getBoolean("Theme", false);
if(theme){
this.setTheme(R.style.Theme_NoBarBlack);
} else{
this.setTheme(R.style.Theme_NoBar);
}
setContentView(R.layout.aplikacja);
I define themes in file
styles.xml in folder values:
<resources>
<style name="Theme.NoBar" parent="@android:style/Theme.Light.NoTitleBar" />
<style name="Theme.NoBarBlack" parent="@android:style/Theme.NoActionBar" />
in values-v11:
<resources>
<style name="Theme.NoBar" parent="@android:style/Theme.Holo.Light.NoActionBar" />
<style name="Theme.NoBarBlack" parent="@android:style/Theme.Holo.NoActionBar" />
in values-v14:
<resources>
<style name="Theme.NoBar" parent="@android:style/Theme.DeviceDefault.Light.NoActionBar" />
<style name="Theme.NoBarBlack" parent="@android:style/Theme.DeviceDefault.NoActionBar" />
manifest file:
<application
android:theme="@style/Theme.NoBar" >
Everything is working excellent on android 4.0 but when I use 2.2 it doesn't change theme - just font is getting white as it should be but there is no dark background.
I tried checking if it at least works and changed Theme.NoBarBlack in values (for android <3.0) and its value the same as Theme.NoBar and then when I pressed button font wasn't changed -as it should do.
