Guard the use of SYSTEM_UI_FLAG_XXXX with TargetApi

bug: 6698718

Change-Id: I6962f0128ce2bd57658b7f3b77d2bc150eff1f60

1 files changed, 37 insertions, 0 deletions

diff --git a/gallerycommon/src/com/android/gallery3d/common/ApiHelper.java b/gallerycommon/src/com/android/gallery3d/common/ApiHelper.java
new file mode 100644
index 000000000..2fa93b9e9
--- /dev/null
+++ b/gallerycommon/src/com/android/gallery3d/common/ApiHelper.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 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.gallery3d.common;
+
+import android.view.View;
+
+public class ApiHelper {
+
+    public static final boolean HAS_VIEW_SYSTEM_UI_FLAG_LAYOUT_STABLE =
+            hasField(View.class, "SYSTEM_UI_FLAG_LAYOUT_STABLE");
+
+    public static final boolean HAS_VIEW_SYSTEM_UI_FLAG_HIDE_NAVIGATION =
+            hasField(View.class, "SYSTEM_UI_FLAG_HIDE_NAVIGATION");
+
+    private static boolean hasField(Class<?> klass, String fieldName) {
+        try {
+            klass.getDeclaredField(fieldName);
+            return true;
+        } catch (NoSuchFieldException e) {
+            return false;
+        }
+    }
+}