浮动操作按钮在棒棒糖中不起作用

Question

我收到此错误：

android.view.InflateException: Binary XML file line #149: Binary XML file line #149: Error inflating class android.support.design.widget.FloatingActionButton

我知道有一个重复的问题，但是那里的答案不能解决我的问题。

这是我的build.gradle（app）

android {
compileSdkVersion 26
defaultConfig {
    minSdkVersion 21
    targetSdkVersion 26
    versionCode 14
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])

implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support:recyclerview-v7:26.1.0'
implementation 'com.android.support:design:26.1.0'
implementation 'com.android.support:support-v13:26.1.0'
implementation "com.android.support:support-fragment:26.1.0"

在另一个重复的问题上，答案要求将sdkVersion降级为25。我尝试了一下，但它破坏了我的整个应用程序。我需要在这里和那里添加很多额外的代码，并删除某些功能（例如通知渠道）以使其与SDK 25兼容。

反正还有吗？

我的FAB XML代码：

<android.support.design.widget.FloatingActionButton
    android:id="@+id/fab_addnew"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    android:layout_margin="@dimen/fab_margin"
    app:backgroundTint="@color/colorAccent"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:srcCompat="@drawable/ic_add_white_24px"
    />

编辑：在完整的目录猫上添加：

09-25 16:20:52.250 5637-5637/? E/AndroidRuntime: FATAL EXCEPTION: main 
Process: com.xxx.xxx, PID: 5637
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxx.xxx/com.xxx.xxx.OrderActivity}: android.view.InflateException: Binary XML file line #149: Binary XML file line #149: Error inflating class android.support.design.widget.FloatingActionButton
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3319)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3415)
    at android.app.ActivityThread.access$1100(ActivityThread.java:229)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1821)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:148)
    at android.app.ActivityThread.main(ActivityThread.java:7406)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
 Caused by: android.view.InflateException: Binary XML file line #149: Binary XML file line #149: Error inflating class android.support.design.widget.FloatingActionButton
    at android.view.LayoutInflater.inflate(LayoutInflater.java:551)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:429)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:380)
    at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
    at com.xxx.xxx.OrderActivity.onCreate(OrderActivity.java:72)
    at android.app.Activity.performCreate(Activity.java:6904)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1136)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3266)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3415) 
    at android.app.ActivityThread.access$1100(ActivityThread.java:229) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1821) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:7406) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) 

编辑：按要求添加了其余XML文件。

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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/ConstraintLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#E0E0E0"
    tools:context="com.xxx.xxx.OrderActivity">
    <android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/header"
        app:layout_constraintLeft_toLeftOf="@+id/ConstraintLayout"
        app:layout_constraintRight_toRightOf="@+id/ConstraintLayout"
        app:layout_constraintTop_toTopOf="@+id/ConstraintLayout"
        android:background="@color/white"
        >
        <ImageView
            android:id="@+id/icon"
            style="@style/ThemeOverlay.Logo"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@color/white"
            android:contentDescription="@string/icon"
            android:src="@drawable/local_icon"
            app:layout_constraintLeft_toLeftOf="@+id/header"
            app:layout_constraintTop_toTopOf="@+id/header"
            app:layout_constraintBottom_toBottomOf="@+id/header"
            android:layout_marginTop="@dimen/border_margin"
            android:layout_marginStart="@dimen/border_margin"
            android:layout_marginBottom="@dimen/border_margin"
            />
        <TextView
            android:id="@+id/org_ID"
            style="@style/AppTheme.Subheader"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:lines="1"
            tools:text="ABCD"
            android:visibility="visible"
            android:layout_marginStart="@dimen/border_margin"
            android:layout_marginTop="@dimen/half_border_margin"
            app:layout_constraintLeft_toRightOf="@+id/icon"
            app:layout_constraintTop_toTopOf="@+id/header"
            />
        <TextView
            android:id="@+id/user_ID"
            style="@style/AppTheme.Subsubheader"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:maxLength="35"
            android:lines="1"
            tools:text="abc123@gmail.com"
            android:visibility="visible"
            android:layout_marginStart="@dimen/border_margin"
            app:layout_constraintLeft_toRightOf="@+id/icon"
            app:layout_constraintTop_toBottomOf="@+id/org_ID"/>
        <TextView
            android:id="@+id/version"
            style="@style/AppTheme.Subsubsubheader"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:maxLength="30"
            android:lines="1"
            android:visibility="visible"
            android:layout_marginStart="@dimen/border_margin"
            app:layout_constraintLeft_toRightOf="@+id/icon"
            app:layout_constraintTop_toBottomOf="@+id/user_ID"/>
        <ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_more_vert_black_24dp"
            android:contentDescription="@string/desc_overflow_button"
            android:onClick="showPopup"
            app:layout_constraintTop_toTopOf="@+id/header"
            app:layout_constraintBottom_toBottomOf="@+id/header"
            app:layout_constraintRight_toRightOf="@+id/header"
            android:background="@android:color/transparent"
            android:layout_marginEnd="@dimen/border_margin2"
            />
    </android.support.constraint.ConstraintLayout>
    <TextView
        android:id="@+id/order_ID"
        style="@style/AppTheme.Subheader"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:lines="1"
        android:text="@string/store"
        android:visibility="visible"
        android:layout_marginStart="@dimen/double_border_margin"
        app:layout_constraintBottom_toTopOf="@+id/recycler_orders"
        app:layout_constraintLeft_toLeftOf="@+id/ConstraintLayout"
        app:layout_constraintTop_toBottomOf="@+id/header" />

    <Spinner
        android:id="@+id/storespinner"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toTopOf="@+id/recycler_orders"
        app:layout_constraintLeft_toRightOf="@+id/order_ID"
        app:layout_constraintTop_toBottomOf="@+id/header"
        app:layout_constraintRight_toRightOf="@+id/ConstraintLayout"
        android:visibility="visible"
        android:layout_marginStart="0dp"
        >
    </Spinner>
        <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_orders"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:background="@color/white"
            app:layout_constraintBottom_toBottomOf="@+id/ConstraintLayout"
            app:layout_constraintLeft_toLeftOf="@+id/ConstraintLayout"
            app:layout_constraintRight_toRightOf="@+id/ConstraintLayout"
            app:layout_constraintTop_toBottomOf="@+id/order_ID"
            tools:listitem="@layout/item_orders" />
    <ProgressBar
    android:id="@+id/progress_loading"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBottom="@+id/recycler_orders"
    android:layout_alignTop="@+id/recycler_orders"
    android:layout_centerHorizontal="true"
    android:visibility="gone" />
    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab_addnew"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        app:backgroundTint="@color/colorAccent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:srcCompat="@drawable/ic_add_white_24px"
        />
</android.support.constraint.ConstraintLayout>

编辑：在styles.xml上添加：

<!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

Answer 1

我已经解决了这个问题。我发现

app:srcCompat="@drawable/ic_add_white_24px"

在我的XML中，可绘制文件位于v24文件夹中，这就是导致错误的原因。

（愚蠢的我）