实现Material滚动技术的Android库：material-scrolling
cw63
10年前
实现Material滚动技术的Android库 material scrolling techniques.
特性
- Easily implement material scrolling techniques with RecyclerView.
- Customize the behavior while scrolling.
- Support RecyclerView in ViewPager.
用法
(For a working implementation of this project see the sample.)
MaterialScrollingLayout
LayoutObservableRecyclerViewinside ofMaterialScrollingLayout.
<jp.satorufujiwara.scrolling.MaterialScrollingLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:id="@+id/materialScrollingLayout" android:layout_width="match_parent" android:layout_height="match_parent" app:ms_flexible_height="240dp" > <com.github.ksoichiro.android.observablescrollview.ObservableRecyclerView android:id="@+id/recyclerView" android:layout_width="match_parent" android:layout_height="match_parent" /> </jp.satorufujiwara.scrolling.MaterialScrollingLayout>
ms_flexible_heightis height fromRecyclerViews top toRecyclerView's first item.
And callMaterialScrollingLayout.addBehavior(View, Behavior)in Activity or Fragment.
First argument is targetView. Second argument isView's behavior while scrolling.
materialScrollingLayout.addBehavior(bgImageView, new ParallaxBehavior()); materialScrollingLayout.addBehavior(titleTextView, new ScrollingBehavior()); materialScrollingLayout.addBehavior(fabView, new FabBehavior(getResources()));
FabBehavioris customizedBehavior. If you want customize behavior, create class that extends 'Behavior'.
public class TitleBehavior extends Behavior { private final int scrollLimitHeight; public TitleBehavior(Resources r) { scrollLimitHeight = r.getDimensionPixelOffset(R.dimen.title_scroll_height); } @Override protected void onScrolled(View target, int scrollY, int dy) { ViewCompat.setTranslationY(target, -Math.min(scrollY, scrollLimitHeight)); } }