/* * Copyright 2016 "Henry Tao <[email protected]>" * * 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 me.henrytao.smoothappbarlayout.base; import android.support.design.widget.AppBarLayout; import android.view.View; import android.view.ViewGroup; /** * Created by henrytao on 10/4/15. */ public class ScrollFlag { private int mFlags; private View vView; public ScrollFlag(AppBarLayout layout) { if (layout != null) { int i = 0; for (int z = layout.getChildCount(); i < z; ++i) { View child = layout.getChildAt(i); ViewGroup.LayoutParams layoutParams = child.getLayoutParams(); if (layoutParams instanceof AppBarLayout.LayoutParams) { AppBarLayout.LayoutParams childLp = (AppBarLayout.LayoutParams) layoutParams; int flags = childLp.getScrollFlags(); if ((flags & AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL) != 0) { vView = child; mFlags = flags; break; } } } } } public View getView() { return vView; } public boolean isFlagEnterAlwaysCollapsedEnabled() { if (vView != null && (mFlags & AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS_COLLAPSED) != 0) { return true; } return false; } public boolean isFlagEnterAlwaysEnabled() { if (vView != null && (mFlags & AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS) != 0) { return true; } return false; } public boolean isFlagExitUntilCollapsedEnabled() { if (vView != null && (mFlags & AppBarLayout.LayoutParams.SCROLL_FLAG_EXIT_UNTIL_COLLAPSED) != 0) { return true; } return false; } public boolean isFlagScrollEnabled() { if (vView != null && (mFlags & AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL) != 0) { return true; } return false; } public boolean isFlagSnapEnabled() { if (vView != null && (mFlags & AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP) != 0) { return true; } return false; } public boolean isQuickReturnEnabled() { return isFlagEnterAlwaysEnabled() && isFlagEnterAlwaysCollapsedEnabled(); } }