Merge "Disable call settings for secondary users." into lmp-dev

import android.content.Context;

import android.content.SharedPreferences;

import android.os.Bundle;

import android.os.UserHandle;

import android.os.UserManager;

import android.preference.PreferenceManager;

import android.preference.PreferenceActivity.Header;

import android.text.TextUtils;

    protected SharedPreferences mPreferences;

    private HeaderAdapter mHeaderAdapter;

    private static final int OWNER_HANDLE_ID = 0;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

    public void onBuildHeaders(List<Header> target) {

        final Header contactDisplayHeader = new Header();

        contactDisplayHeader.titleRes = R.string.settings_contact_display_options_title;

        contactDisplayHeader.summaryRes = R.string.settings_contact_display_options_description;

        contactDisplayHeader.fragment = DisplayOptionsPreferenceFragment.class.getName();

        target.add(contactDisplayHeader);

        // Only add the call settings header if the current user is the primary/owner user.

        if (isPrimaryUser()) {

            final Header callSettingHeader = new Header();

            callSettingHeader.titleRes = R.string.call_settings_label;

            callSettingHeader.summaryRes = R.string.call_settings_description;

            callSettingHeader.intent = DialtactsActivity.getCallSettingsIntent();

            target.add(callSettingHeader);

        }

    }

    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

        }

    }

    /**

     * Whether a user handle associated with the current user is that of the primary owner. That is,

     * whether there is a user handle which has an id which matches the owner's handle.

     * @return Whether the current user is the primary user.

     */

    private boolean isPrimaryUser() {

        UserManager userManager = (UserManager) getSystemService(Context.USER_SERVICE);

        List<UserHandle> userHandles = userManager.getUserProfiles();

        for (int i = 0; i < userHandles.size(); i++){

            if (userHandles.get(i).myUserId() == OWNER_HANDLE_ID) {

                return true;

            }

        }

        return false;

    }

    /**

     * This custom {@code ArrayAdapter} is mostly identical to the equivalent one in

     * {@code PreferenceActivity}, except with a local layout resource.

            } else {

                holder.summary.setVisibility(View.GONE);

            }

            return view;

        }

    }