SettingsActivity.java

package com.firstbuild.androidapp.paragon.settings;

import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.preference.EditTextPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceFragment;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.MenuItem;

import com.afollestad.materialdialogs.MaterialDialog;
import com.firstbuild.androidapp.R;
import com.firstbuild.androidapp.productmanager.ProductInfo;
import com.firstbuild.androidapp.productmanager.ProductManager;


public class SettingsActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_settings);

        android.support.v7.widget.Toolbar toolbar = (android.support.v7.widget.Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);


        String menu = getIntent().getStringExtra("SelectedMenu");

        if(menu.equals("MenuSettings")){
            getFragmentManager().beginTransaction().replace(R.id.content_frame, new PreferenceSettings()).commit();
        }
        else{
            getFragmentManager().beginTransaction().replace(R.id.content_frame, new PreferenceAbout()).commit();
        }

    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            // Respond to the action bar's Up button
            case android.R.id.home:
                finish();
                return true;
        }
        return super.onOptionsItemSelected(item);
    }

    public static class PreferenceSettings extends PreferenceFragment implements SharedPreferences.OnSharedPreferenceChangeListener {
        public static final String KEY_PREF_TEMP_UNIT = "pref_temp_unit";
        public static final String KEY_PREF_UNIT = "pref_unit";
        public static final String KEY_PREF_NAME = "pref_name";
        private String TAG = PreferenceSettings.class.getSimpleName();

        @Override
        public void onCreate(final Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            addPreferencesFromResource(R.xml.pref_settings);


            ListPreference tempPreference = (ListPreference) findPreference(KEY_PREF_TEMP_UNIT);
            tempPreference.setSummary(tempPreference.getValue());

            ListPreference unitPreference = (ListPreference) findPreference(KEY_PREF_UNIT);
            unitPreference.setSummary(unitPreference.getValue());

            ProductInfo productInfo = ProductManager.getInstance().getCurrent();

            if(productInfo != null){
                EditTextPreference editTextPref = (EditTextPreference) findPreference(KEY_PREF_NAME);
                editTextPref.setSummary(productInfo.nickname);
            }


        }

        @Override
        public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String s) {
            Log.d(TAG, "onSharedPreferenceChanged " + s);

            // Set summary to be the user-description for the selected value
            Preference connectionPref = findPreference(s);
            String newValue = sharedPreferences.getString(s, "");
            connectionPref.setSummary(newValue);

            if(s.equals("pref_name")){
                ProductInfo productInfo = ProductManager.getInstance().getCurrent();

                if(productInfo != null){
                    productInfo.nickname = newValue;
                    ProductManager.getInstance().write();
                }
                else{
                    Log.d(TAG, "productInfo is Null");
                }

            }
        }

        @Override
        public void onResume() {
            super.onResume();
            getPreferenceManager().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
        }

        @Override
        public void onPause() {
            getPreferenceManager().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
            super.onPause();
        }
    }


    public static class PreferenceAbout extends PreferenceFragment {
        private String TAG = PreferenceSettings.class.getSimpleName();
        public static final String KEY_PREF_VERSION = "pref_version_number";


        @Override
        public void onCreate(final Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            addPreferencesFromResource(R.xml.pref_about);


            Preference term_service = findPreference("pref_term_service");

            term_service.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                @Override
                public boolean onPreferenceClick(Preference preference) {
                    Log.d(TAG, "onPreferenceClick pref_term_service");

                    new MaterialDialog.Builder(getActivity())
                            .title(R.string.term_of_service_title)
                            .content(R.string.term_of_service_content)
                            .positiveText(R.string.term_of_service_ok)
                            .show();

                    return false;
                }
            });

            Preference opensource_license = findPreference("pref_licenses");

            opensource_license.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                @Override
                public boolean onPreferenceClick(Preference preference) {
                    Log.d(TAG, "onPreferenceClick pref_term_service");

                    new MaterialDialog.Builder(getActivity())
                            .title(R.string.opensource_license_title)
                            .content(R.string.opensource_license_content)
                            .positiveText(R.string.opensource_license_ok)
                            .show();

                    return false;
                }
            });



            Preference learnMore = findPreference("pref_learn_more");

            learnMore.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                @Override
                public boolean onPreferenceClick(Preference preference) {
                    Log.d(TAG, "onPreferenceClick pref_learn_more");

                    String url = getResources().getString(R.string.url_manual);
                    startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));

                    return false;
                }
            });


            String versionName = "";
            try {
                versionName = getActivity().getPackageManager().getPackageInfo(getActivity().getPackageName(), 0).versionName;
            }
            catch (PackageManager.NameNotFoundException e) {
                e.printStackTrace();
            }
            Preference version = findPreference(KEY_PREF_VERSION);
            version.setSummary(versionName);


        }

        @Override
        public void onResume() {
            super.onResume();
        }

        @Override
        public void onPause() {
            super.onPause();
        }
    }


}