内容简介:http://stackoverflow.com/questions/41142711/25-1-0-android-support-lib-is-breaking-fab-behavior
我升级到最新的支持库版本,滚动FAB行为不起作用.当在RecyclerView上向下滚动时,它正确地向下滚动,但是当再次向上滚动时不是.它保持隐藏降级到25.0.1似乎减轻了这个问题.这里提供的代码是我使用的代码.
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent" android:animateLayoutChanges="true" android:fitsSystemWindows="true" tools:context=".mainhost.MainActivity" tools:openDrawer="start"> <android.support.design.widget.CoordinatorLayout xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main_coordinator_layout_root_view" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".mainhost.MainActivity"> <android.support.design.widget.AppBarLayout android:id="@+id/appbar_layout" android:layout_width="match_parent" android:layout_height="wrap_content" android:theme="@style/AppTheme.AppBarOverlay"> <android.support.design.widget.CollapsingToolbarLayout android:id="@+id/collapsing_toolbar_layout" android:layout_width="match_parent" android:layout_height="wrap_content" android:fitsSystemWindows="true" app:contentScrim="?attr/colorPrimary" app:layout_scrollFlags="scroll|enterAlways|snap"> <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="?attr/colorPrimary" android:focusableInTouchMode="true" app:layout_collapseMode="pin" app:popupTheme="@style/AppTheme.PopupOverlay" /> </android.support.design.widget.CollapsingToolbarLayout> </android.support.design.widget.AppBarLayout> <!-- Layout for content is here. This can be a RelativeLayout --> <FrameLayout android:id="@+id/content_main" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginLeft="-3dp" android:layout_marginRight="-3dp" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:context="com.globyworks.citykey.mainhost.MainActivity" /> <android.support.design.widget.FloatingActionButton android:id="@+id/fab" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="bottom|end" android:layout_margin="@dimen/fab_margin" app:layout_behavior="com.globyworks.citykey.helpers.ScrollingFABBehavior" android:src="@drawable/drawer_new_report_white" /> </android.support.design.widget.CoordinatorLayout> <android.support.design.widget.NavigationView android:id="@+id/navigation_view" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_gravity="start" android:background="@android:color/white" app:menu="@menu/menu_drawer"> </android.support.design.widget.NavigationView> </android.support.v4.widget.DrawerLayout>
和滚动类:
public class ScrollingFABBehavior extends FloatingActionButton.Behavior { public ScrollingFABBehavior(Context context, AttributeSet attrs) { super(); } public boolean onStartNestedScroll(CoordinatorLayout parent, FloatingActionButton child, View directTargetChild, View target, int nestedScrollAxes) { return true; } @Override public boolean layoutDependsOn(CoordinatorLayout parent, FloatingActionButton child, View dependency) { if (dependency instanceof RecyclerView) { return true; } return false; } @Override public void onNestedScroll(CoordinatorLayout coordinatorLayout, FloatingActionButton child, View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed) { super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed ); if (dyConsumed > 0 && child.getVisibility() == View.VISIBLE) { child.hide(); } else if (dyConsumed < 0 && child.getVisibility() != View.VISIBLE) { child.show(); } } }
这里的一个快速解决方法是在 end of the FAB’s hide animation 将FAB的可见性设置为INVISIBLE.
if (dyConsumed > 0 && child.getVisibility() == View.VISIBLE) { child.hide(new FloatingActionButton.OnVisibilityChangedListener() { @Override public void onHidden(FloatingActionButton fab) { super.onHidden(fab); fab.setVisibility(View.INVISIBLE); } }); } else if (dyConsumed < 0 && child.getVisibility() != View.VISIBLE) { child.show(); }
http://stackoverflow.com/questions/41142711/25-1-0-android-support-lib-is-breaking-fab-behavior
以上所述就是小编给大家介绍的《25.1.0 Android支持lib正在破坏晶圆厂的行为》,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对 码农网 的支持!
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