Merge "Move ApplicationsState to SettingsLib" into mnc-dev

packages/SettingsLib/src/com/android/settingslib/applications/InterestingConfigChanges.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.settingslib.applications;
+
+import android.content.pm.ActivityInfo;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+
+public class InterestingConfigChanges {
+    private final Configuration mLastConfiguration = new Configuration();
+    private int mLastDensity;
+
+    public boolean applyNewConfig(Resources res) {
+        int configChanges = mLastConfiguration.updateFrom(res.getConfiguration());
+        boolean densityChanged = mLastDensity != res.getDisplayMetrics().densityDpi;
+        if (densityChanged || (configChanges&(ActivityInfo.CONFIG_LOCALE
+                |ActivityInfo.CONFIG_UI_MODE|ActivityInfo.CONFIG_SCREEN_LAYOUT)) != 0) {
+            mLastDensity = res.getDisplayMetrics().densityDpi;
+            return true;
+        }
+        return false;
+    }
+}