Question

我有一个问题。

我在内部使用带有NestedScrollView的CoordinatorLayout。 NestedScrollView包含TextView + RecyclerView。我也有附加行为的AppBarLayout。

当我与RecyclerView交互时，行为正常。但是，如果我尝试与TextView交互，行为会导致onStartNestedScroll（..）然后再次onStopNestedScroll（..）和onStartNestedScroll（..）。

为什么会这样？我该如何预防？

$eduArr=json_decode(trim($edu, '\''),true);
print_r($eduArr);

ScrollingBehavior非常简单。

Option Explicit
Sub green_update()

 Application.ScreenUpdating = False

 Dim zaman As Double
 zaman = Timer
Dim wb As Workbook, ws1 As Worksheet, wsNames as Worksheet

Set wb = ThisWorkbook
Set ws1 = wb.Sheets("Sheet1")

Dim colNo As Long, OthARowNo As Long, sh1ARowNo As Long
Dim for_col As Long, i As Long, r As Long, c As Long, colnum As Long

r = 4: c = 7: colnum = 7

For Each wsNames In Sheets(Array("sheet11", "sheet12", "sheet13"))
    colNo = wsNames.Cells("4", Columns.Count).End(xlToLeft).column
    'Column numbers are 35 but you are working between G:AI which is 29 columns!

    OthARowNo = wsNames.Cells(Rows.Count, "A").End(xlUp).row
    sh1ARowNo = ws1.Cells(Rows.Count, "A").End(xlUp).row

    For for_col = 7 To colNo 'colNo Is 35 Green columns start at 7th column, totally 29 loop, till 35th one.
        For i = 1 To sh1ARowNo   'This should run until sh1's row number
            ws1.Cells(r, c).Value = Application.VLookup(ws1.Cells(r, 1).Value, wsNames.Range("A1:AI" & OthARowNo), colnum, False)
            If IsError(ws1.Cells(r, c).Value) Then
                ws1.Cells(r, c).Value = ""
            End If
            r = r + 1
        Next i
        r = 4
        colnum = colnum + 1
        c = c + 1
    Next for_col
    colnum = 7
    c = c + 6 'There are 6 columns between AI:AP and BR:BY
Next wsNames

 Application.ScreenUpdating = True

 MsgBox Format(Timer - zaman, "00.00") & "secs"
End Sub

}

Answer 1

将属性app:layout_behavior="@string/appbar_scrolling_view_behavior"添加到NestedScrollView。

更新您的布局，如下所示：

<android.support.design.widget.CoordinatorLayout
    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">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:background="@color/transparent"
        app:elevation="0dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="AppBarLayout"/>
    </android.support.design.widget.AppBarLayout>

    <android.support.v4.widget.NestedScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <TextView
                android:id="@+id/aspot"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="@dimen/text_margin"
                android:background="#39868686"
                android:focusableInTouchMode="true"
                android:padding="100dp"
                android:text="Some text"/>

            <android.support.v7.widget.RecyclerView
                android:id="@+id/recyclerView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:focusableInTouchMode="false"
                android:orientation="vertical"
                app:layoutManager="android.support.v7.widget.LinearLayoutManager"/>

        </LinearLayout>

    </android.support.v4.widget.NestedScrollView>

</android.support.design.widget.CoordinatorLayout>

CoordinatorLayout.Behavior导致onStartNestedScroll（..）两次

1 个答案: