错误膨胀类 - NestedScrollView - 找不到类

use*_*117 11 android android-layout android-nestedscrollview

运行Android Studio 2.1.2,Windows 7.

我用NestedScrollView替换了ScrollView,现在我得到了

android.view.InflateException:二进制XML文件行#2:错误膨胀类NestedScrollView

java.lang.ClassNotFoundException:在路径上找不到类"android.view.NestedScrollView":/ data/app/com.assemblyguide.remote-48.apk

...当我在该XML文件上调用SetContentView()时.当我只有一个ScrollView时,我没有得到它.

我已经尝试过清理,并使缓存无效并重建.XML看起来像这样...

<?xml version="1.0" encoding="utf-8"?>
<NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <!-- This linear layout is because the scrollview can have only 1 direct child -->
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical" >

        <!-- Relative layout for Workorder -->
        <RelativeLayout
            android:id="@+id/rellayWorkorder"
            android:background="#383838"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="30dp"
            android:layout_marginBottom="2dp">
            <TextView
                android:id="@+id/workorderlabel"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_margin="2dp"
                android:gravity="left"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="Work Order:"/>

            <TextView
                android:id="@+id/workorderContent"
                android:layout_width="150dp"
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true"
                android:layout_margin="2dp"
                android:gravity="right"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="---workorder---"/>
        </RelativeLayout>


        <!-- Relative layout for Required Time
   <FrameLayout
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:layout_gravity="center_horizontal"></FrameLayout> -->

        <RelativeLayout
            android:id="@+id/rellayRequiredTime"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="30dp"
            android:layout_marginBottom="2dp">
            <TextView
                android:id="@+id/requiredTimelabel"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_margin="2dp"
                android:gravity="left"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="Required Time:"/>

            <TextView
                android:id="@+id/requiredTimeContent"
                android:layout_width="150dp"
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true"
                android:layout_margin="2dp"
                android:gravity="right"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="--- 00 minutes ---"/>
        </RelativeLayout>

        <!-- Relative layout for Time remaining -->
        <RelativeLayout
            android:id="@+id/rellayTimeRemaining"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="30dp"
            android:layout_marginBottom="2dp">
            <TextView
                android:id="@+id/timeremaininglabel"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_margin="2dp"
                android:gravity="left"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="Time Remaining:"/>

            <TextView
                android:id="@+id/tviewtimeremainingContent"
                android:layout_width="150dp"
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true"
                android:layout_margin="2dp"
                android:gravity="right"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="--- 0:00:00---"/>
        </RelativeLayout>

        <!--  Linear layout for Record Start / Record End buttons -->
        <LinearLayout
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"  >
            <Button
                android:id="@+id/debulkrecordStart"
                android:layout_width="150dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="6dp"
                android:layout_marginRight="4dp"
                android:gravity="center"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:onClick="OnSetRecordStartTimeClick"
                android:text="Record Start"/>
            <Button
                android:id="@+id/debulkrecordEnd"
                android:layout_width="150dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="6dp"
                android:layout_marginRight="4dp"
                android:gravity="center"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:onClick="OnSetRecordEndTimeClick"
                android:text="Record End"/>
        </LinearLayout>

        <!-- Relative layout for Vacuum level -->
        <RelativeLayout
            android:id="@+id/rellayvacuumlevel"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="2dp">
            <TextView
                android:id="@+id/vaclabel"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_margin="2dp"
                android:gravity="left"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:text="Vacuum Level (inches Hg):"/>
            <EditText
                android:id="@+id/vacleveledit"
                android:layout_width="120dp"
                android:layout_height="wrap_content"
                android:layout_alignParentRight = "true"
                android:layout_margin="2dp"
                android:gravity="left"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:inputType="text|textCapCharacters"
                android:text="vac level"
                android:layout_marginRight="2dp"
                android:layout_marginTop="2dp"
                android:layout_marginBottom="2dp"/>
        </RelativeLayout>

        <!-- Relative layout for Vac Gauge Equipment # -->
        <RelativeLayout
            android:id="@+id/rlayvacuumGauge"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="2dp">
            <TextView
                android:id="@+id/vacgaugelabel"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_margin="2dp"
                android:gravity="left"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:text="Vac Gauge Equipment #:"/>
            <EditText
                android:id="@+id/vacgaugeedit"
                android:layout_width="120dp"
                android:layout_height="wrap_content"
                android:layout_alignParentRight = "true"
                android:layout_margin="2dp"
                android:gravity="left"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:inputType="text|textCapCharacters"
                android:text="equip. #"/>
        </RelativeLayout>



        <!-- Relative layout for Calibration Due date -->
        <RelativeLayout
            android:id="@+id/rlaycalibdue"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="2dp">
            <TextView
                android:id="@+id/calibduelabel"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_margin="2dp"
                android:gravity="left"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:text="Calibration Due Date:"/>
            <EditText
                android:id="@+id/calibdueedit"
                android:layout_width="120dp"
                android:layout_height="wrap_content"
                android:layout_alignParentRight = "true"
                android:layout_margin="2dp"
                android:gravity="left"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:inputType="text|textCapCharacters"
                android:text="mm/dd/yyyy"/>
        </RelativeLayout>


        <CalendarView
            android:id="@+id/debulkcalendar"
            android:layout_width="300dp"
            android:layout_height="250dp"
            android:minDate="01/01/2016"
            android:maxDate="11/30/2016"
            />


        <!--  this linear layout is for the debulk override and done buttons  -->
        <LinearLayout
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"  >
            <Button
                android:id="@+id/debulkOverride"
                android:layout_width="150dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="6dp"
                android:layout_marginRight="4dp"
                android:onClick="OnResetClick"
                android:gravity="center"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="Override"/>
            <Button
                android:id="@+id/debulkDone"
                android:layout_width="150dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="6dp"
                android:layout_marginRight="2dp"
                android:onClick="onDoneBtnClick"
                android:gravity="center"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="Done"/>
        </LinearLayout>

    </LinearLayout>

</NestedScrollView>
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这个错误意味着什么,我该如何解决?

che*_*ork 26

完整的班级名称是android.support.v4.widget.NestedScrollView.用它替换<NestedScrollView>元素,<android.support.v4.widget.NestedScrollView>它应该工作正常.确保build.gradle文件中也有v4支持库.

  • 在最新的 android x 中,这个解决方案成功了。尝试“androidx.core.widget.NestedScrollView” (3认同)

小智 14

如果使用androidx,更换<NestedScrollView>或完整的类名称<android.support.v4.widget.NestedScrollView>
<androidx.core.widget.NestedScrollView>


Muh*_*raf 6

您需要在依赖项中添加此行:

compile 'com.android.support:support-v4:23.4.0'
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也像国际象棋所说的android.support.v4.widget.NestedScrollView那样NestedScrollView


eng*_*mam 5

更改为

    <androidx.core.widget.NestedScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
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Hie*_*yen 5

当我使用 androidx.core.widget.NestedScrollView 时,我删除了这一行它会正常工作。当我添加这个时,应用程序会崩溃(我的布局在 NestedScrollView 中也有 recyclerview)

android:nestedScrollingEnabled="false"
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  • 出现与此选项相关的类似崩溃。所以我知道如果你想让 RecyclerView 不可滚动,你应该为 RecyclerView 添加这一行,而不是为 NestedScrollView 添加这一行。 (2认同)