Fix bug #15001610 Java crash in settings is observed while adding Google account on wiped device

- update Settings main layout to be able to show the Buttons
- make WifiPickerActivity a SettingsActivity and remove dead code
- fix reference to Buttons for using the Settings IDs instead
of the Framework ones

Change-Id: I23bfd1b8290fc007e6e80aa9a6297e55e7f6004e

res/layout/settings_main.xml

@@ -24,8 +24,9 @@
 
     <LinearLayout
             android:orientation="vertical"
-            android:layout_height="match_parent"
+            android:layout_height="0px"
-            android:layout_width="match_parent">
+            android:layout_width="match_parent"
+            android:layout_weight="1">
 
         <com.android.settings.widget.SwitchBar android:id="@+id/switch_bar"
                   android:layout_height="?android:attr/actionBarSize"
@@ -37,7 +38,6 @@
                 android:id="@+id/prefs"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:layout_weight="1"
                 />
 
     </LinearLayout>

src/com/android/settings/SettingsActivity.java

@@ -515,25 +515,25 @@ public class SettingsActivity extends Activity
         Intent intent = getIntent();
         if (intent.getBooleanExtra(EXTRA_PREFS_SHOW_BUTTON_BAR, false)) {
 
-            View buttonBar = findViewById(com.android.internal.R.id.button_bar);
+            View buttonBar = findViewById(R.id.button_bar);
             if (buttonBar != null) {
                 buttonBar.setVisibility(View.VISIBLE);
 
-                Button backButton = (Button)findViewById(com.android.internal.R.id.back_button);
+                Button backButton = (Button)findViewById(R.id.back_button);
                 backButton.setOnClickListener(new OnClickListener() {
                     public void onClick(View v) {
                         setResult(RESULT_CANCELED);
                         finish();
                     }
                 });
-                Button skipButton = (Button)findViewById(com.android.internal.R.id.skip_button);
+                Button skipButton = (Button)findViewById(R.id.skip_button);
                 skipButton.setOnClickListener(new OnClickListener() {
                     public void onClick(View v) {
                         setResult(RESULT_OK);
                         finish();
                     }
                 });
-                mNextButton = (Button)findViewById(com.android.internal.R.id.next_button);
+                mNextButton = (Button)findViewById(R.id.next_button);
                 mNextButton.setOnClickListener(new OnClickListener() {
                     public void onClick(View v) {
                         setResult(RESULT_OK);

src/com/android/settings/wifi/WifiPickerActivity.java

@@ -16,22 +16,12 @@
 package com.android.settings.wifi;
 
 import com.android.settings.ButtonBarHandler;
+import com.android.settings.SettingsActivity;
 import com.android.settings.wifi.p2p.WifiP2pSettings;
 
-import android.app.Fragment;
 import android.content.Intent;
-import android.os.Bundle;
-import android.preference.PreferenceActivity;
-import android.widget.Button;
 
-public class WifiPickerActivity extends PreferenceActivity implements ButtonBarHandler {
+public class WifiPickerActivity extends SettingsActivity implements ButtonBarHandler {
-
-    // Same as what are in PreferenceActivity as private.
-    private static final String EXTRA_PREFS_SHOW_BUTTON_BAR = "extra_prefs_show_button_bar";
-    private static final String EXTRA_PREFS_SET_NEXT_TEXT = "extra_prefs_set_next_text";
-    private static final String EXTRA_PREFS_SET_BACK_TEXT = "extra_prefs_set_back_text";
-    private static final String EXTRA_WIFI_SHOW_ACTION_BAR = "wifi_show_action_bar";
-    private static final String EXTRA_WIFI_SHOW_MENUS = "wifi_show_menus";
 
     @Override
     public Intent getIntent() {
@@ -39,7 +29,6 @@ public class WifiPickerActivity extends PreferenceActivity implements ButtonBarH
         if (!modIntent.hasExtra(EXTRA_SHOW_FRAGMENT)) {
             modIntent.putExtra(EXTRA_SHOW_FRAGMENT, WifiSettings.class.getName());
         }
-        modIntent.putExtra(EXTRA_NO_HEADERS, true);
         return modIntent;
     }
 
@@ -50,59 +39,4 @@ public class WifiPickerActivity extends PreferenceActivity implements ButtonBarH
                 || AdvancedWifiSettings.class.getName().equals(fragmentName)) return true;
         return false;
     }
-
-    /**
-     * Almost dead copy of
-     * {@link PreferenceActivity#startWithFragment(String, Bundle, Fragment, int)}, except this has
-     * additional codes for button bar handling.
-     */
-    @Override
-    public void startWithFragment(String fragmentName, Bundle args,
-            Fragment resultTo, int resultRequestCode) {
-        Intent intent = new Intent(Intent.ACTION_MAIN);
-        intent.setClass(this, getClass());
-        intent.putExtra(EXTRA_SHOW_FRAGMENT, fragmentName);
-        intent.putExtra(EXTRA_SHOW_FRAGMENT_ARGUMENTS, args);
-        intent.putExtra(EXTRA_NO_HEADERS, true);
-
-        final Intent orgIntent = getIntent();
-        if (orgIntent.hasExtra(EXTRA_PREFS_SHOW_BUTTON_BAR)) {
-            intent.putExtra(EXTRA_PREFS_SHOW_BUTTON_BAR,
-                    orgIntent.getBooleanExtra(EXTRA_PREFS_SHOW_BUTTON_BAR, false));
-        }
-        if (orgIntent.hasExtra(EXTRA_PREFS_SET_NEXT_TEXT)) {
-            intent.putExtra(EXTRA_PREFS_SET_NEXT_TEXT,
-                    orgIntent.getStringExtra(EXTRA_PREFS_SET_NEXT_TEXT));
-        }
-        if (orgIntent.hasExtra(EXTRA_PREFS_SET_BACK_TEXT)) {
-            intent.putExtra(EXTRA_PREFS_SET_BACK_TEXT,
-                    orgIntent.getStringExtra(EXTRA_PREFS_SET_BACK_TEXT));
-        }
-        if (orgIntent.hasExtra(EXTRA_WIFI_SHOW_ACTION_BAR)) {
-            intent.putExtra(EXTRA_WIFI_SHOW_ACTION_BAR,
-                    orgIntent.getBooleanExtra(EXTRA_WIFI_SHOW_ACTION_BAR, true));
-        }
-        if (orgIntent.hasExtra(EXTRA_WIFI_SHOW_MENUS)) {
-            intent.putExtra(EXTRA_WIFI_SHOW_MENUS,
-                    orgIntent.getBooleanExtra(EXTRA_WIFI_SHOW_MENUS, true));
-        }
-
-        if (resultTo == null) {
-            startActivity(intent);
-        } else {
-            resultTo.startActivityForResult(intent, resultRequestCode);
-        }
-    }
-
-    @Override
-    public boolean hasNextButton() {
-        // PreferenceActivity#hasNextButton() is protected, so we need to expose it here.
-        return super.hasNextButton();
-    }
-
-    @Override
-    public Button getNextButton() {
-        // PreferenceActivity#getNextButton() is protected, so we need to expose it here.
-        return super.getNextButton();
-    }
 }