Merge "[WifiSetup] Show progress bar when scanning" into mnc-dev

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

@@ -33,7 +33,6 @@ import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
-import android.graphics.drawable.Drawable;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 import android.net.NetworkInfo.State;
@@ -623,13 +622,12 @@ public class WifiSettings extends RestrictedSettingsFragment
                 final Collection<AccessPoint> accessPoints =
                         mWifiTracker.getAccessPoints();
                 getPreferenceScreen().removeAll();
-                if (accessPoints.size() == 0) {
-                    addMessagePreference(R.string.wifi_empty_list_wifi_on);
-                }
 
+                boolean hasAvailableAccessPoints = false;
                 for (AccessPoint accessPoint : accessPoints) {
                     // Ignore access points that are out of range.
                     if (accessPoint.getLevel() != -1) {
+                        hasAvailableAccessPoints = true;
                         AccessPointPreference preference = new AccessPointPreference(accessPoint,
                                 getActivity());
 
@@ -637,18 +635,27 @@ public class WifiSettings extends RestrictedSettingsFragment
                         accessPoint.setListener(this);
                     }
                 }
+                if (!hasAvailableAccessPoints) {
+                    setProgressBarVisible(true);
+                    addMessagePreference(R.string.wifi_empty_list_wifi_on);
+                } else {
+                    setProgressBarVisible(false);
+                }
                 break;
 
             case WifiManager.WIFI_STATE_ENABLING:
                 getPreferenceScreen().removeAll();
+                setProgressBarVisible(true);
                 break;
 
             case WifiManager.WIFI_STATE_DISABLING:
                 addMessagePreference(R.string.wifi_stopping);
+                setProgressBarVisible(true);
                 break;
 
             case WifiManager.WIFI_STATE_DISABLED:
                 setOffMessage();
+                setProgressBarVisible(false);
                 break;
         }
         // Update "Saved Networks" menu option.
@@ -703,6 +710,10 @@ public class WifiSettings extends RestrictedSettingsFragment
         getPreferenceScreen().removeAll();
     }
 
+    protected void setProgressBarVisible(boolean visible) {
+        // TODO: show a progress bar when scan is in progress.
+    }
+
     @Override
     public void onWifiStateChanged(int state) {
         Activity activity = getActivity();
@@ -713,10 +724,12 @@ public class WifiSettings extends RestrictedSettingsFragment
         switch (state) {
             case WifiManager.WIFI_STATE_ENABLING:
                 addMessagePreference(R.string.wifi_starting);
+                setProgressBarVisible(true);
                 break;
 
             case WifiManager.WIFI_STATE_DISABLED:
                 setOffMessage();
+                setProgressBarVisible(false);
                 break;
         }
     }

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

@@ -43,6 +43,7 @@ public class WifiSettingsForSetupWizard extends WifiSettings {
 
     private static final String TAG = "WifiSettingsForSetupWizard";
 
+    private SetupWizardListLayout mLayout;
     private View mAddOtherNetworkItem;
     private TextView mEmptyFooter;
     private boolean mListLastEmpty = false;
@@ -50,9 +51,9 @@ public class WifiSettingsForSetupWizard extends WifiSettings {
     @Override
     public View onCreateView(final LayoutInflater inflater, ViewGroup container,
             Bundle savedInstanceState) {
-        final SetupWizardListLayout layout = (SetupWizardListLayout) inflater.inflate(
+        mLayout = (SetupWizardListLayout)
-                R.layout.setup_wifi_layout, container, false);
+                inflater.inflate(R.layout.setup_wifi_layout, container, false);
-        final ListView list = layout.getListView();
+        final ListView list = mLayout.getListView();
 
         mAddOtherNetworkItem = inflater.inflate(R.layout.setup_wifi_add_network, list, false);
         list.addFooterView(mAddOtherNetworkItem, null, true);
@@ -65,13 +66,13 @@ public class WifiSettingsForSetupWizard extends WifiSettings {
             }
         });
 
-        final NavigationBar navigationBar = layout.getNavigationBar();
+        final NavigationBar navigationBar = mLayout.getNavigationBar();
         if (navigationBar != null) {
             WifiSetupActivity activity = (WifiSetupActivity) getActivity();
             activity.onNavigationBarCreated(navigationBar);
         }
 
-        return layout;
+        return mLayout;
     }
 
     @Override
@@ -146,4 +147,15 @@ public class WifiSettingsForSetupWizard extends WifiSettings {
             mListLastEmpty = isEmpty;
         }
     }
+
+    @Override
+    protected void setProgressBarVisible(boolean visible) {
+        if (mLayout != null) {
+            if (visible) {
+                mLayout.showProgressBar();
+            } else {
+                mLayout.hideProgressBar();
+            }
+        }
+    }
 }