SetupWizard: Aggressively hide nav bar on soft key devices

Change-Id: Ic23fd7e605a323411fe2f581235ff3ed45bfcaed
(cherry picked from commit 1d7988a4c7)

AndroidManifest.xml

@@ -66,6 +66,7 @@
     <application android:label="@string/app_name"
                  android:icon="@drawable/icon"
                  android:theme="@style/Theme.Setup"
+                 android:uiOptions="none"
                  android:name=".SetupWizardApp">
 
         <meta-data android:name="com.google.android.gms.version"
@@ -75,9 +76,9 @@
                   android:label="@string/product_name"
                   android:launchMode="singleInstance"
                   android:excludeFromRecents="true"
-                  android:uiOptions="none"
                   android:configChanges="themeChange|mcc|mnc"
-                  android:immersive="true">
+                  android:immersive="true"
+                  android:windowSoftInputMode="stateAlwaysHidden">
 
             <intent-filter android:priority="9">
 

src/com/cyanogenmod/setupwizard/ui/SetupWizardActivity.java

@@ -56,6 +56,12 @@ public class SetupWizardActivity extends Activity implements SetupDataCallbacks,
 
     private static final String TAG = SetupWizardActivity.class.getSimpleName();
 
+    private static final int UI_FLAGS = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+            | View.SYSTEM_UI_FLAG_IMMERSIVE
+            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
+
     private View mRootView;
     private View mButtonBar;
     private Button mNextButton;
@@ -77,12 +83,25 @@ public class SetupWizardActivity extends Activity implements SetupDataCallbacks,
 
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        final View decorView = getWindow().getDecorView();
+        decorView.setSystemUiVisibility(UI_FLAGS);
+        decorView.setOnSystemUiVisibilityChangeListener(
+                new View.OnSystemUiVisibilityChangeListener() {
+
+                    @Override
+                    public void onSystemUiVisibilityChange(int visibility) {
+                        if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
+                            decorView.setSystemUiVisibility(UI_FLAGS);
+                        }
+                    }
+                });
         if (sLaunchTime == 0) {
             SetupStats.addEvent(SetupStats.Categories.APP_LAUNCH, TAG);
             sLaunchTime = System.nanoTime();
         }
         setContentView(R.layout.setup_main);
         mRootView = findViewById(R.id.root);
+        mRootView.setSystemUiVisibility(UI_FLAGS);
         mReveal = (ImageView)mRootView.findViewById(R.id.reveal);
         mButtonBar = findViewById(R.id.button_bar);
         mFinishingProgressBar = (ProgressBar)findViewById(R.id.finishing_bar);
@@ -134,10 +153,8 @@ public class SetupWizardActivity extends Activity implements SetupDataCallbacks,
 
     @Override
     protected void onResume() {
-        getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
-                | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
-                | View.SYSTEM_UI_FLAG_IMMERSIVE
-                | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
+        final View decorView = getWindow().getDecorView();
+        decorView.setSystemUiVisibility(UI_FLAGS);
         super.onResume();
         if (mSetupData.isFinished()) {
             mHandler.postDelayed(new Runnable() {