To bring up the home screen settings page, call the Settings.ACTION_HOME_SETTINGS
intent. However this is ONLY supported in API 21 and above.
API 20 and below need to call the Settings.ACTION_SETTINGS
intent, and the user must navigate the rest of the way. (Preferably with instructions before hand)
To provide the best intent when available, use the following code. This will open the home settings directly on API 21 and above, else it will open the settings page on API 20 and below.
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
final Intent intent = new Intent(Settings.ACTION_HOME_SETTINGS);
startActivity(intent);
}
else {
final Intent intent = new Intent(Settings.ACTION_SETTINGS);
startActivity(intent);
}