Add support for changing status widget on security screen

Change-Id: I080fd89eb84445604c602b6e807b55153a7ee129

Author: mikejurka

core/java/android/provider/Settings.java

@@ -3219,8 +3219,8 @@ public static final String getBluetoothInputDevicePriorityKey(String address) {
          * Id of the time appwidget on the lockscreen, or -1 if none
          * @hide
          */
-        public static final String LOCK_SCREEN_CLOCK_APPWIDGET_ID =
-            "lock_screen_clock_appwidget_id";
+        public static final String LOCK_SCREEN_STATUS_APPWIDGET_ID =
+            "lock_screen_status_appwidget_id";
 
         /**
          * Id of the user-selected appwidget on the lockscreen, or -1 if none

core/java/com/android/internal/widget/LockPatternUtils.java

@@ -1044,6 +1044,17 @@ public int[] getUserDefinedWidgets() {
         return new int[] { appWidgetId };
     }
 
+    public int getStatusWidget() {
+        int appWidgetId = -1;
+        String appWidgetIdString = Settings.Secure.getString(
+                mContentResolver, Settings.Secure.LOCK_SCREEN_STATUS_APPWIDGET_ID);
+        if (appWidgetIdString != null) {
+            appWidgetId = (int) Integer.decode(appWidgetIdString);
+        }
+
+        return appWidgetId;
+    }
+
     private long getLong(String secureSettingKey, long defaultValue) {
         try {
             return getLockSettings().getLong(secureSettingKey, defaultValue,

policy/src/com/android/internal/policy/impl/keyguard/KeyguardHostView.java

@@ -33,7 +33,6 @@
 import android.graphics.Canvas;
 import android.graphics.Rect;
 import android.os.Looper;
-import android.os.UserHandle;
 import android.os.UserManager;
 import android.util.AttributeSet;
 import android.util.Log;
@@ -42,6 +41,7 @@
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.ViewGroup;
 import android.view.WindowManager;
 import android.view.animation.AnimationUtils;
 import android.widget.RemoteViews.OnClickHandler;
@@ -691,6 +691,23 @@ private void maybePopulateWidgets() {
         }
         inflateAndAddUserSelectorWidgetIfNecessary();
 
+        // Add status widget
+        int statusWidgetId = mLockPatternUtils.getStatusWidget();
+        if (statusWidgetId != -1) {
+            addWidget(statusWidgetId);
+            View newStatusWidget = mAppWidgetContainer.getChildAt(
+                    mAppWidgetContainer.getChildCount() - 1);
+
+            int oldStatusWidgetPosition = getWidgetPosition(R.id.keyguard_status_view);
+            mAppWidgetContainer.removeViewAt(oldStatusWidgetPosition);
+
+            // Re-add new status widget at position of old one
+            mAppWidgetContainer.removeView(newStatusWidget);
+            newStatusWidget.setId(R.id.keyguard_status_view);
+            mAppWidgetContainer.addView(newStatusWidget, oldStatusWidgetPosition);
+        }
+
+        // Add user-selected widget
         final int[] widgets = mLockPatternUtils.getUserDefinedWidgets();
         for (int i = 0; i < widgets.length; i++) {
             if (widgets[i] != -1) {