Use Drawer in Settings app

- get rid of PreferenceActivity as much as we can and use fragments instead
- add Drawer widget
- add Dashboard high level entry into the Drawer (but this is work in progress and would be done in another CL)
- add bypass of fragment's Header  validation when launched from the Drawer but *force* validation if external
call thru an Intent

Be aware that WifiPickerActivity should remain for now a PreferenceActivity. It is used by SetupWizard and should
not trigger running the SettingsActivity's header building code. SetupWizard is a Home during the provisionnig process
and then deactivate itself as a Home but would make the Home header to appear in the Drawer (because momentarily we
would have two Home).

Also, verified that:

- the WiFi settings still work when called from SetupWizard
- when you have multiple Launchers, the Home header will appear in the list of Headers in the Drawer

Change-Id: I407a5e0fdd843ad7615d3d511c416a44e3d97c90

src/com/android/settings/IccLockSettings.java

@@ -27,7 +27,6 @@ import android.os.Handler;
 import android.os.Message;
 import android.preference.CheckBoxPreference;
 import android.preference.Preference;
-import android.preference.PreferenceActivity;
 import android.preference.PreferenceScreen;
 import android.util.Log;
 import android.widget.Toast;
@@ -45,7 +44,7 @@ import com.android.internal.telephony.TelephonyIntents;
  * these operations.
  *
  */
-public class IccLockSettings extends PreferenceActivity
+public class IccLockSettings extends SettingsPreferenceFragment
         implements EditPinPreference.OnPinEnteredListener {
     private static final String TAG = "IccLockSettings";
     private static final boolean DBG = true;
@@ -141,7 +140,7 @@ public class IccLockSettings extends PreferenceActivity
     }
 
     @Override
-    protected void onCreate(Bundle savedInstanceState) {
+    public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         if (Utils.isMonkeyRunning()) {
@@ -192,13 +191,13 @@ public class IccLockSettings extends PreferenceActivity
     }
 
     @Override
-    protected void onResume() {
+    public void onResume() {
         super.onResume();
 
         // ACTION_SIM_STATE_CHANGED is sticky, so we'll receive current state after this call,
         // which will call updatePreferences().
         final IntentFilter filter = new IntentFilter(TelephonyIntents.ACTION_SIM_STATE_CHANGED);
-        registerReceiver(mSimStateReceiver, filter);
+        getActivity().registerReceiver(mSimStateReceiver, filter);
 
         if (mDialogState != OFF_MODE) {
             showPinDialog();
@@ -209,13 +208,13 @@ public class IccLockSettings extends PreferenceActivity
     }
 
     @Override
-    protected void onPause() {
+    public void onPause() {
         super.onPause();
-        unregisterReceiver(mSimStateReceiver);
+        getActivity().unregisterReceiver(mSimStateReceiver);
     }
 
     @Override
-    protected void onSaveInstanceState(Bundle out) {
+    public void onSaveInstanceState(Bundle out) {
         // Need to store this state for slider open/close
         // There is one case where the dialog is popped up by the preference
         // framework. In that case, let the preference framework store the
@@ -359,8 +358,8 @@ public class IccLockSettings extends PreferenceActivity
         if (success) {
             mPinToggle.setChecked(mToState);
         } else {
-            Toast.makeText(this, getPinPasswordErrorMessage(attemptsRemaining), Toast.LENGTH_LONG)
-                    .show();
+            Toast.makeText(getActivity(),
+                    getPinPasswordErrorMessage(attemptsRemaining), Toast.LENGTH_LONG).show();
         }
         mPinToggle.setEnabled(true);
         resetDialogState();
@@ -368,11 +367,11 @@ public class IccLockSettings extends PreferenceActivity
 
     private void iccPinChanged(boolean success, int attemptsRemaining) {
         if (!success) {
-            Toast.makeText(this, getPinPasswordErrorMessage(attemptsRemaining),
+            Toast.makeText(getActivity(), getPinPasswordErrorMessage(attemptsRemaining),
                     Toast.LENGTH_LONG)
                     .show();
         } else {
-            Toast.makeText(this, mRes.getString(R.string.sim_change_succeeded),
+            Toast.makeText(getActivity(), mRes.getString(R.string.sim_change_succeeded),
                     Toast.LENGTH_SHORT)
                     .show();