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android - 如何让 bottomSheet 从顶部打开?

转载 作者:塔克拉玛干 更新时间:2023-11-02 19:03:35 25 4
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我正在我的应用程序中打开一个 NestedScrollView,目前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 Bottom Sheet ?

这是我的 Activity :

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>

最佳答案

我不确定这是您想要的,但以下链接是 BottomSheetBehavior 的“顶级”版本。

https://github.com/ipuris/AndroidTopSheet/blob/master/library/src/main/java/com/github/techisfun/android/topsheet/TopSheetBehavior.java

包含示例应用程序的完整代码:https://github.com/ipuris/AndroidTopSheet

TopSheetBehavior 类包含到您的项目中,然后您可以通过将 app:layout_behavior 值更改为 TopSheetBehavior 而不是 来使用它>android.support.design.widget.BottomSheetBehavior

以上代码是从 original repository 派生出来的,但我为最新版本的 Android 修复了一些库依赖项(旧的 android.support 库 -> androidx 库)。

(也许这个答案对@jernkuan 来说太迟了,但我希望这个答案能对其他开发者有所帮助。)

关于android - 如何让 bottomSheet 从顶部打开?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39510205/

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