src/main/java/de/thedevstack/conversationsplus/ui/SettingsFragment.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65

package de.thedevstack.conversationsplus.ui;

import android.app.Dialog;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.PreferenceFragment;
import android.preference.PreferenceScreen;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewParent;
import android.widget.FrameLayout;
import android.widget.LinearLayout;

import de.thedevstack.conversationsplus.R;

public class SettingsFragment extends PreferenceFragment {

	//http://stackoverflow.com/questions/16374820/action-bar-home-button-not-functional-with-nested-preferencescreen/16800527#16800527
	private void initializeActionBar(PreferenceScreen preferenceScreen) {
		final Dialog dialog = preferenceScreen.getDialog();

		if (dialog != null) {
			View homeBtn = dialog.findViewById(android.R.id.home);

			if (homeBtn != null) {
				View.OnClickListener dismissDialogClickListener = new View.OnClickListener() {
					@Override
					public void onClick(View v) {
						dialog.dismiss();
					}
				};

				ViewParent homeBtnContainer = homeBtn.getParent();

				if (homeBtnContainer instanceof FrameLayout) {
					ViewGroup containerParent = (ViewGroup) homeBtnContainer.getParent();
					if (containerParent instanceof LinearLayout) {
						((LinearLayout) containerParent).setOnClickListener(dismissDialogClickListener);
					} else {
						((FrameLayout) homeBtnContainer).setOnClickListener(dismissDialogClickListener);
					}
				} else {
					homeBtn.setOnClickListener(dismissDialogClickListener);
				}
			}
		}
	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		// Load the preferences from an XML resource
		addPreferencesFromResource(R.xml.preferences);
	}

	@Override
	public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
		super.onPreferenceTreeClick(preferenceScreen, preference);
		if (preference instanceof PreferenceScreen) {
			initializeActionBar((PreferenceScreen) preference);
		}
		return false;
	}
}