diff options
Diffstat (limited to 'packages/SystemUI/src/com/android/systemui/statusbar/policy/ScrollAdapter.java')
-rw-r--r-- | packages/SystemUI/src/com/android/systemui/statusbar/policy/ScrollAdapter.java | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/ScrollAdapter.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/ScrollAdapter.java new file mode 100644 index 0000000..f35e22d --- /dev/null +++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/ScrollAdapter.java @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2014 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.systemui.statusbar.policy; + +import android.view.View; + +/** + * A scroll adapter which can be queried for meta information about the scroll state + */ +public interface ScrollAdapter { + + /** + * @return Whether the view returned by {@link #getHostView()} is scrolled to the top + */ + public boolean isScrolledToTop(); + + /** + * @return Whether the view returned by {@link #getHostView()} is scrolled to the bottom + */ + public boolean isScrolledToBottom(); + + /** + * @return The view in which the scrolling is performed + */ + public View getHostView(); +} |