1 files changed, 44 insertions, 0 deletions
diff --git a/src/com/android/messaging/ui/mediapicker/MediaPickerGridView.java b/src/com/android/messaging/ui/mediapicker/MediaPickerGridView.java
new file mode 100644
index 0000000..cc3a4a1
--- /dev/null
+++ b/src/com/android/messaging/ui/mediapicker/MediaPickerGridView.java
@@ -0,0 +1,44 @@
+/*
+ * 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.messaging.ui.mediapicker;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.GridView;
+
+public class MediaPickerGridView extends GridView {
+
+    public MediaPickerGridView(final Context context, final AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    /**
+     * Returns if the grid view can be swiped down further. It cannot be swiped down
+     * if there's no item or if we are already at the top.
+     */
+    public boolean canSwipeDown() {
+        if (getAdapter() == null || getAdapter().getCount() == 0 || getChildCount() == 0) {
+            return false;
+        }
+
+        final int firstVisiblePosition = getFirstVisiblePosition();
+        if (firstVisiblePosition == 0 && getChildAt(0).getTop() >= 0) {
+            return false;
+        }
+        return true;
+    }
+}