About PreferenceFragment with Toolbar

package uk.verscreative.materialsettings;

import android.media.Ringtone;
import android.media.RingtoneManager;
import android.preference.ListPreference;
import android.preference.PreferenceActivity;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.preference.Preference;
import android.app.NotificationManager;

import android.preference.PreferenceManager;
import android.preference.RingtonePreference;
import android.support.design.widget.AppBarLayout;
import android.support.v7.widget.AppCompatCheckBox;
import android.support.v7.widget.AppCompatCheckedTextView;
import android.support.v7.widget.AppCompatEditText;
import android.support.v7.widget.AppCompatRadioButton;
import android.support.v7.widget.AppCompatSpinner;
import android.text.TextUtils;
import android.util.Log;
import android.net.Uri;
import android.support.v7.app.NotificationCompat;
import android.graphics.Color;
import android.content.res.Configuration;
import android.util.AttributeSet;
import android.view.View;
import android.os.Build;
import android.os.Bundle;
import android.content.pm.PackageManager;
import android.view.Window;
import android.widget.LinearLayout;
import android.view.LayoutInflater;
import android.view.ViewGroup;
import android.support.v7.widget.Toolbar;
import android.widget.ListView;
import android.util.TypedValue;
import android.preference.PreferenceScreen;
import android.app.Dialog;


public class SettingsExampleActivity extends PreferenceActivity {
    private static String appVersion;

    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);

        AppBarLayout bar;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            LinearLayout root = (LinearLayout) findViewById(android.R.id.list).getParent().getParent().getParent();
            bar = (AppBarLayout) LayoutInflater.from(this).inflate(R.layout.toolbar_settings, root, false);
            root.addView(bar, 0);
        } else {
            ViewGroup root = (ViewGroup) findViewById(android.R.id.content);
            ListView content = (ListView) root.getChildAt(0);
            root.removeAllViews();
            bar = (AppBarLayout) LayoutInflater.from(this).inflate(R.layout.toolbar_settings, root, false);

            int height;
            TypedValue tv = new TypedValue();
            if (getTheme().resolveAttribute(R.attr.actionBarSize, tv, true)) {
                height = TypedValue.complexToDimensionPixelSize(tv.data, getResources().getDisplayMetrics());
            }else{
                height = bar.getHeight();
            }

            content.setPadding(0, height, 0, 0);

            root.addView(content);
            root.addView(bar);
        }

        Toolbar Tbar = (Toolbar) bar.getChildAt(0);

        Tbar.setNavigationOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                finish();
            }
        });

        try {
            PackageInfo pInfo = getPackageManager().getPackageInfo(getPackageName(), 0);
            appVersion = pInfo.versionName;
        } catch(PackageManager.NameNotFoundException e) {
            appVersion = "unknown";
        }

        setupSimplePreferencesScreen();
    }

    @SuppressWarnings("deprecation")
    private void setupSimplePreferencesScreen() {
        addPreferencesFromResource(R.xml.pref_general);
        bindPreferenceSummaryToValue(findPreference("notifications_ringtone"));
        Preference app_version = findPreference("application_version");
        setPreferenceSummary(app_version, appVersion);
    }

    private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object value) {
            String stringValue = value.toString();

            if (preference instanceof ListPreference) {
                // For list preferences, look up the correct display value in
                // the preference's 'entries' list.
                ListPreference listPreference = (ListPreference) preference;
                int index = listPreference.findIndexOfValue(stringValue);

                // Set the summary to reflect the new value.
                preference.setSummary(
                        index >= 0
                                ? listPreference.getEntries()[index]
                                : null);

            } else if (preference instanceof RingtonePreference) {
                // For ringtone preferences, look up the correct display value
                // using RingtoneManager.
                if (TextUtils.isEmpty(stringValue)) {
                    // Empty values correspond to 'silent' (no ringtone).
                    preference.setSummary(R.string.pref_ringtone_silent);

                } else {
                    Ringtone ringtone = RingtoneManager.getRingtone(
                            preference.getContext(), Uri.parse(stringValue));

                    if (ringtone == null) {
                        // Clear the summary if there was a lookup error.
                        preference.setSummary(null);
                    } else {
                        // Set the summary to reflect the new ringtone display
                        // name.
                        String name = ringtone.getTitle(preference.getContext());
                        preference.setSummary(name);
                    }
                }

            } else {
                // For all other preferences, set the summary to the value's
                // simple string representation.
                preference.setSummary(stringValue);
            }
            return true;
        }
    };

    private static void bindPreferenceSummaryToValue(Preference preference) {
        // Set the listener to watch for value changes.
        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);

        // Trigger the listener immediately with the preference's
        // current value.
        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference,
                PreferenceManager
                        .getDefaultSharedPreferences(preference.getContext())
                        .getString(preference.getKey(), ""));
    }

    private static void setPreferenceSummary(Preference preference, String value) {
        preference.setSummary(value);
    }

    @Override
    public View onCreateView(String name, Context context, AttributeSet attrs) {
        // Allow super to try and create a view first
        final View result = super.onCreateView(name, context, attrs);
        if (result != null) {
            return result;
        }

        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
            // If we're running pre-L, we need to 'inject' our tint aware Views in place of the
            // standard framework versions
            switch (name) {
                case "EditText":
                    return new AppCompatEditText(this, attrs);
                case "Spinner":
                    return new AppCompatSpinner(this, attrs);
                case "CheckBox":
                    return new AppCompatCheckBox(this, attrs);
                case "RadioButton":
                    return new AppCompatRadioButton(this, attrs);
                case "CheckedTextView":
                    return new AppCompatCheckedTextView(this, attrs);
            }
        }

        return null;
    }

    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
    }

    @SuppressWarnings("deprecation")
    @Override
    public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
        super.onPreferenceTreeClick(preferenceScreen, preference);

        if (preference!=null) {
            if (preference instanceof PreferenceScreen) {
                if (((PreferenceScreen) preference).getDialog() != null) {
                    ((PreferenceScreen) preference).getDialog().getWindow().getDecorView().setBackgroundDrawable(this.getWindow().getDecorView().getBackground().getConstantState().newDrawable());
                    setUpNestedScreen((PreferenceScreen) preference);
                }
            }
        }

        return false;
    }

    public void setUpNestedScreen(PreferenceScreen preferenceScreen) {
        final Dialog dialog = preferenceScreen.getDialog();

        AppBarLayout appBar;

        View listRoot = dialog.findViewById(android.R.id.list);
        ViewGroup mRootView = (ViewGroup) dialog.findViewById(android.R.id.content);


        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            LinearLayout root = (LinearLayout) dialog.findViewById(android.R.id.list).getParent();
            appBar = (AppBarLayout) LayoutInflater.from(this).inflate(R.layout.toolbar_settings, root, false);
            root.addView(appBar, 0);
        } else {
            ListView content = (ListView) mRootView.getChildAt(0);
            mRootView.removeAllViews();

            LinearLayout LL = new LinearLayout(this);
            LL.setOrientation(LinearLayout.VERTICAL);

            ViewGroup.LayoutParams LLParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
            LL.setLayoutParams(LLParams);

            appBar = (AppBarLayout) LayoutInflater.from(this).inflate(R.layout.toolbar_settings, mRootView, false);

            LL.addView(appBar);
            LL.addView(content);

            mRootView.addView(LL);
        }

        if(listRoot != null){
            listRoot.setPadding(0, listRoot.getPaddingTop(), 0, listRoot.getPaddingBottom());
        }

        Toolbar Tbar = (Toolbar) appBar.getChildAt(0);
        
        Tbar.setTitle(preferenceScreen.getTitle());
        
        Tbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
            }
        });
    }
}

public class SettingsFragmentPhoto extends PreferenceActivity {
    private Toolbar mToolBar;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
/////////////// making toolbar ////////////////
        LinearLayout root = (LinearLayout)findViewById(android.R.id.list).getParent().getParent().getParent();
        mToolBar = (Toolbar) LayoutInflater.from(this).inflate(R.layout.settings_toolbar, root, false);

        mToolBar.setTitleTextColor(Color.WHITE);

        root.addView(mToolBar, 0); // insert at top
        mToolBar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
/////////////// making toolbar ////////////////

        getFragmentManager().beginTransaction().replace(android.R.id.content,new PrefsFragment()).commit();


//        PreferenceManager.setDefaultValues(Preferences2.this, R.xml.preferences_t, false);

    }


    public static class PrefsFragment extends PreferenceFragment {

        @Override
        public void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            addPreferencesFromResource(R.xml.preferences3_t);
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            View view = super.onCreateView(inflater, container, savedInstanceState);
            // calculate margins
            int horizontalMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, getResources().getDisplayMetrics());
            int verticalMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, getResources().getDisplayMetrics());
            int topMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, (int) getResources().getDimension(R.dimen.activity_vertical_margin) + 30, getResources().getDisplayMetrics());

            view.setPadding(horizontalMargin, topMargin, horizontalMargin, verticalMargin);
            return view;
        }




    }



}