Make ContactPreferences use SharedPreferences instead of System settings (5/5)

* Move constants that originally lived in the framework into ContactsCommon
* Use SharedPreferences instead of System settings to persist preferences
* Use a SharedPreferenceListener to monitor changes instead of a content observer
on system settings
* Move DisplayOrderPreference and SortOrderPreference into ContactsCommon so that
it can be used by Dialer
* Create base DialerSettingsActivity in Dialer, and make GoogleDialerSettingsActivity
extend it
Bug: 16153186

Change-Id: I27befcc3b038038830f72092b55a6fc8a6f85674
diff --git a/src/com/android/dialer/DialtactsActivity.java b/src/com/android/dialer/DialtactsActivity.java
index 4965647..d08b38f 100644
--- a/src/com/android/dialer/DialtactsActivity.java
+++ b/src/com/android/dialer/DialtactsActivity.java
@@ -81,6 +81,7 @@
 import com.android.dialer.list.SearchFragment;
 import com.android.dialer.list.SmartDialSearchFragment;
 import com.android.dialer.list.SpeedDialFragment;
+import com.android.dialer.settings.DialerSettingsActivity;
 import com.android.dialer.util.DialerUtils;
 import com.android.dialer.widget.ActionBarController;
 import com.android.dialer.widget.SearchEditTextLayout;
@@ -519,12 +520,8 @@
     }
 
     protected void handleMenuSettings() {
-        openTelephonySetting(this);
-    }
-
-    public static void openTelephonySetting(Activity activity) {
-        final Intent settingsIntent = getCallSettingsIntent();
-        activity.startActivity(settingsIntent);
+        final Intent intent = new Intent(this, DialerSettingsActivity.class);
+        startActivity(intent);
     }
 
     @Override
diff --git a/src/com/android/dialer/settings/DialerSettingsActivity.java b/src/com/android/dialer/settings/DialerSettingsActivity.java
new file mode 100644
index 0000000..904be82
--- /dev/null
+++ b/src/com/android/dialer/settings/DialerSettingsActivity.java
@@ -0,0 +1,54 @@
+package com.android.dialer.settings;
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceManager;
+import android.preference.PreferenceActivity.Header;
+import android.view.MenuItem;
+
+import com.android.contacts.common.preference.DisplayOptionsPreferenceFragment;
+import com.android.dialer.DialtactsActivity;
+import com.android.dialer.R;
+
+import java.util.List;
+
+public class DialerSettingsActivity extends PreferenceActivity {
+
+    protected SharedPreferences mPreferences;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+    }
+
+    @Override
+    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);
+
+        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) {
+        if (item.getItemId() == android.R.id.home) {
+            onBackPressed();
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    protected boolean isValidFragment(String fragmentName) {
+        return true;
+    }
+}