CustomInputStyleSettingsFragment.java 文件源码

@Override
public void onSaveCustomInputStyle(final CustomInputStylePreference stylePref) {
    final InputMethodSubtype subtype = stylePref.getSubtype();
    if (!stylePref.hasBeenModified()) {
        return;
    }
    if (findDuplicatedSubtype(subtype) == null) {
        mRichImm.setAdditionalInputMethodSubtypes(getSubtypes());
        return;
    }

    // Saved subtype is duplicated.
    final PreferenceGroup group = getPreferenceScreen();
    group.removePreference(stylePref);
    stylePref.revert();
    group.addPreference(stylePref);
    showSubtypeAlreadyExistsToast(subtype);
}