我正在我的应用程序中打开 NestedScrollView,到目前为止它是从屏幕底部打开的。如何让它从顶部打开?
我尝试删除以下行:
app:layout_behavior="android.support.design.widget.BottomSheetBehavior"
但应用程序崩溃并出现以下错误:
The view is not associated with BottomSheetBehavior
有没有办法从屏幕顶部打开底部工作表?
这是我的活动:
ViewPager mainViewPager;
private BottomSheetBehavior mBottomSheetBehavior;
int switcher = 1;
View menuPopupView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.workorder_selection_layout_with_fragment);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
...
....
...
filterButton = (Button)
findViewById(R.id.filterButtonMainWorkorderSelection);
filterButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (switcher == 1) {
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
switcher = 2;
} else {
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
switcher = 1;
}
}
});
///////////////////////////////////////////
//////////////Buttom Sheet/////////////////
///////////////////////////////////////////
View bottomSheet = findViewById(R.id.bottom_sheet);
mBottomSheetBehavior = BottomSheetBehavior.from(bottomSheet);
}
这是我的 xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="apps.radwin.wintouch.activities.alignmentActivities.WorkordersSelectionActivity"
tools:showIn="@layout/app_bar_workorders_selection">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="8dp"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="@style/AppTheme.PopupOverlay">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="@+id/tabsLayoutWorkorderSelection"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/workorderSelectionMainViewPagerContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end|bottom"
android:src="@drawable/add_workorders_plus"
android:layout_marginLeft="@dimen/fab_margin"
android:layout_marginRight="@dimen/fab_margin"
android:layout_marginBottom="@dimen/fab_margin"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true" />
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clipToPadding="true"
android:background="#293339"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior"
>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toStartOf="@+id/fab">
...
...
...
<View
android:layout_width="match_parent"
android:layout_height="20dp"
android:layout_below="@+id/workorderFilterPopup_CompleteImage"
></View>
</RelativeLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
</RelativeLayout>
我不确定这是否是您想要的,但以下链接是 BottomSheetBehavior 的“顶部”版本。
https://github.com/ipuris/AndroidTopSheet/blob/master/library/src/main/java/com/github/techisfun/android/topsheet/TopSheetBehavior.java https://github.com/ipuris/AndroidTopSheet/blob/master/library/src/main/java/com/github/techisfun/android/topsheet/TopSheetBehavior.java
完整代码,包括示例应用程序:https://github.com/ipuris/AndroidTopSheet https://github.com/ipuris/AndroidTopSheet
包括TopSheetBehavior
类到您的项目,然后您可以通过更改来使用它app:layout_behavior
价值TopSheetBehavior
代替android.support.design.widget.BottomSheetBehavior
.
上面的代码是从原始存储库 https://github.com/TechIsFun/AndroidTopSheet,但我修复了一些库依赖项(旧的android.support
图书馆->androidx
库)适用于最新版本的 Android。
(也许这个答案对于@jernkuan 来说太晚了,但我希望这个答案可以对其他开发人员有所帮助。)
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