How to Add a Button to Preferencescreen

How to add a button to PreferenceScreen

There is another solution for customizing the appearance of the preferences.

Design a normal XML layout with buttons or whatever you want to add to the standard preferences. Include a ListView in your layout and give it the ID @android:id/list.

Let's say we call the layout file res/layout/main.xml. It could look something like this:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:orientation="vertical">
    <Button android:text="This is a button on top of all preferences."
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    <ListView android:id="@android:id/list"
              android:layout_width="match_parent"
              android:layout_height="wrap_content" />
</LinearLayout>

In your PreferenceActivity, add these two lines to your onCreate:

addPreferencesFromResource(R.xml.preferences);
setContentView(R.layout.main);

The ListView in your layout will then be replaced by the preferences defined the usual way in res/xml/preferences.xml.

Android: How to use Buttons in Preference Screen

Create a custom DialogPreference that incorporates a TimePicker widget. No button required. Should be under 100 lines of code.

Here is a sample project showing, among other things, a custom ColorPreference.

Add up button to PreferenceScreen

If your complete application is a preferences screen, then you can make your main activity a PreferenceActivity and the sub-levels can be fragments. This way the 'up' functionality is going to be by default what you are looking for.

Add a button to the bottom of Preferences Screen

You have to include a ListView with the id @android:id/list like it says in the question you linked to (See Answer).

From your android layout file (R.Layout.Preferences) remove your <ListView> and put this in it's place.

<ListView android:id="@android:id/list" 
  android:layout_width="fill_parent"
  android:layout_height="fill_parent" />

That should solve the problem you were having.

From the LogCat you posted:
Caused by: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'

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Edit: Just some clarification of the id attribute on the ListView. From Android XML Layouts.

The syntax for an ID, inside an XML tag is:

android:id="@+id/my_button"

The at-symbol (@) at the beginning of the string indicates that the XML parser should parse and expand the rest of the ID string and identify it as an ID resource. The plus-symbol (+) means that this is a new resource name that must be created and added to our resources (in the R.java file). There are a number of other ID resources that are offered by the Android framework. When referencing an Android resource ID, you do not need the plus-symbol, but must add the android package namespace, like so:

android:id="@android:id/empty"

With the android package namespace in place, we're now referencing an ID from the android.R resources class, rather than the local resources class.

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