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CoordinatorLayout+AppBarLayout+CollapsingToolbarLayou实现手指滑动效果
如何使用 CoordinatorLayout+AppBarLayout+CollapsingToolbarLayou实现下面GIF图中的效果,再展开的时候头像处于红白中间,根据收缩程度改变头像的位置!底下的RecyclerView也跟随这个移动,不会出现中间隔出一段距离!(仅提供源码复制粘贴,很简单的)
先看下效果图:
下面上代码
XML布局代码如下:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <android.support.design.widget.CoordinatorLayout android:id="@+id/Fragment_ontstf_CoordinatorLayout" android:layout_width="match_parent" android:layout_height="match_parent" android:clipChildren="false"> <android.support.design.widget.AppBarLayout android:id="@+id/Fragment_ontstf_AppBar" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/cFF3523" android:clipChildren="false" app:elevation="0dp"> <android.support.design.widget.CollapsingToolbarLayout android:id="@+id/Fragment_ontstf_CollapsingToolbarLayout" android:layout_width="match_parent" android:layout_height="wrap_content" app:layout_scrollFlags="scroll|exitUntilCollapsed"> <RelativeLayout android:id="@+id/Fragment_ontstf_RelativeLayout" android:layout_width="match_parent" android:layout_height="200dp" android:orientation="horizontal" app:layout_collapseMode="parallax" app:layout_collapseParallaxMultiplier="0.25"> <android.support.v7.widget.CardView android:layout_width="match_parent" android:layout_height="60dp" android:layout_centerVertical="true" android:layout_gravity="center" android:layout_marginLeft="15dp" android:layout_marginRight="15dp" app:cardCornerRadius="5dp" app:cardElevation="5dp"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal"> <LinearLayout android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:orientation="vertical"> <TextView android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:gravity="center_horizontal|bottom" android:text="331" android:textColor="@color/c333333" android:textSize="16sp" /> <TextView android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:gravity="center_horizontal" android:text="积分" android:textColor="@color/c333333" android:textSize="10sp" /> </LinearLayout> <View android:layout_width="0.7px" android:layout_height="40dp" android:layout_gravity="center_vertical" android:background="#727272"></View> <LinearLayout android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:orientation="vertical"> <TextView android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:gravity="center_horizontal|bottom" android:text="5" android:textColor="@color/c333333" android:textSize="16sp" /> <TextView android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:gravity="center_horizontal" android:text="优惠卷" android:textColor="@color/c333333" android:textSize="10sp" /> </LinearLayout> <View android:layout_width="0.7px" android:layout_height="40dp" android:layout_gravity="center_vertical" android:background="#727272"></View> <LinearLayout android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:orientation="vertical"> <TextView android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:gravity="center_horizontal|bottom" android:text="0.00" android:textColor="@color/c333333" android:textSize="16sp" /> <TextView android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:gravity="center_horizontal" android:text="代金卷" android:textColor="@color/c333333" android:textSize="10sp" /> </LinearLayout> <View android:layout_width="0.7px" android:layout_height="40dp" android:layout_gravity="center_vertical" android:background="#727272"></View> <LinearLayout android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:orientation="vertical"> <TextView android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:gravity="center_horizontal|bottom" android:text="3314" android:textColor="@color/c333333" android:textSize="16sp" /> <TextView android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:gravity="center_horizontal" android:text="淘币" android:textColor="@color/c333333" android:textSize="10sp" /> </LinearLayout> </LinearLayout> </android.support.v7.widget.CardView> </RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="50dp" android:background="@color/cFF3523" android:gravity="center_vertical" app:layout_collapseMode="pin"> <ImageView android:id="@+id/Fragment_ontstf_set" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="10dp" android:layout_toLeftOf="@id/Fragment_ontstf_message" android:src="@mipmap/set" /> <ImageView android:id="@+id/Fragment_ontstf_message" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_marginRight="10dp" android:src="@mipmap/message" /> </RelativeLayout> <android.support.v7.widget.Toolbar android:id="@+id/Fragment_ontstf_Toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" app:contentInsetStart="0dp" app:layout_collapseMode="pin"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" android:padding="5dp"> <de.hdodenhof.circleimageview.CircleImageView android:id="@+id/Fragment_ontstf_portrait" android:layout_width="45dp" android:layout_height="45dp" android:layout_gravity="center_vertical" android:src="@mipmap/ic_launcher_round" /> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:id="@+id/Fragment_ontstf_name" android:layout_width="wrap_content" android:layout_height="0dp" android:layout_weight="1" android:layout_marginLeft="10dp" android:textSize="18sp" /> <TextView android:id="@+id/Fragment_ontstf_introduce" android:layout_width="wrap_content" android:layout_height="0dp" android:layout_weight="1" android:layout_marginLeft="10dp" android:layout_marginBottom="5dp" android:textSize="14sp" /> </LinearLayout> </LinearLayout> </android.support.v7.widget.Toolbar> </android.support.design.widget.CollapsingToolbarLayout> </android.support.design.widget.AppBarLayout> <android.support.v7.widget.RecyclerView android:id="@+id/Fragment_ontstf_RecyclerView" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/c00000000" app:layout_behavior="@string/appbar_scrolling_view_behavior"></android.support.v7.widget.RecyclerView> </android.support.design.widget.CoordinatorLayout> </LinearLayout>
JAVA代码如下:
/** * 获取控件信息 */ private void initView() { FragmentOntstfAppBar = (AppBarLayout) view.findViewById(R.id.Fragment_ontstf_AppBar); FragmentOntstfToolbar = (Toolbar) view.findViewById(R.id.Fragment_ontstf_Toolbar); FragmentOntstfPortrait = (CircleImageView) view.findViewById(R.id.Fragment_ontstf_portrait); FragmentOntstfName = (TextView) view.findViewById(R.id.Fragment_ontstf_name); FragmentOntstfIntroduce = (TextView) view.findViewById(R.id.Fragment_ontstf_introduce); FragmentOntstfCollapsingToolbarLayout = (CollapsingToolbarLayout) view.findViewById(R.id.Fragment_ontstf_CollapsingToolbarLayout); FragmentOntstfSet = (ImageView) view.findViewById(R.id.Fragment_ontstf_set); FragmentOntstfMessage = (ImageView) view.findViewById(R.id.Fragment_ontstf_message); FragmentOntstfRecyclerView = (RecyclerView) view.findViewById(R.id.Fragment_ontstf_RecyclerView); FragmentOntstfCoordinatorLayout = (CoordinatorLayout) view.findViewById(R.id.Fragment_ontstf_CoordinatorLayout); FragmentOntstfRelativeLayout = (RelativeLayout) view.findViewById(R.id.Fragment_ontstf_RelativeLayout); setFragmentOntstfRecyclerView(); AppBar(); mPresenter.PselectUser(Userid); } /** * 最主要的代码 * AppBar滑动效果 */ private void AppBar() { FragmentOntstfAppBar.setExpanded(true); FragmentOntstfAppBar.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() { @Override public void onOffsetChanged(AppBarLayout appBarLayout, int i) { float alpha = (float) Math.abs(i) / appBarLayout.getTotalScrollRange(); if (alpha == 0) { CollapsingToolbarLayout.LayoutParams layoutParams = new CollapsingToolbarLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); FragmentOntstfRecyclerView.setPadding(0,FragmentOntstfToolbar.getHeight() / 2,0,0); layoutParams.setMargins(0, 0, 0, (-FragmentOntstfToolbar.getHeight() / 2)); layoutParams.gravity = Gravity.BOTTOM; FragmentOntstfToolbar.setLayoutParams(layoutParams); FragmentOntstfCoordinatorLayout.setClipChildren(false); } else if (FragmentOntstfRelativeLayout.getHeight() - Math.abs(i * 1.0f) == FragmentOntstfToolbar.getHeight()) { FragmentOntstfCoordinatorLayout.setClipChildren(true); } else { int a = (int) ((FragmentOntstfToolbar.getHeight() / 2) * alpha); CollapsingToolbarLayout.LayoutParams layoutParams = new CollapsingToolbarLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); FragmentOntstfRecyclerView.setPadding(0,FragmentOntstfToolbar.getHeight() / 2 - a,0,0); layoutParams.setMargins(0, 0, 0, -(FragmentOntstfToolbar.getHeight() / 2) - (-a)); layoutParams.gravity = Gravity.BOTTOM; FragmentOntstfToolbar.setLayoutParams(layoutParams); FragmentOntstfCoordinatorLayout.setClipChildren(false); } } }); }
这样就完成了!
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