android - 在 Android 中膨胀类 android.support.design.widget.FloatingActionButton 时出错

Question

当我尝试构建应用程序时，它会在 FloatingActionButton 中显示 android.view.InflateException 吗？我真的不知道是什么导致了这个错误。

登录.xml

<?xml version="1.0" encoding="utf-8"?>

<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:fitsSystemWindows="true"
    android:background="@drawable/bg_image" >
<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:id="@+id/lLayout_logincontainer"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:layout_margin="40dp"
        android:orientation="vertical">
        <ImageView
            android:layout_width="130dp"
            android:layout_height="125dp"
            android:src="@drawable/project"/>

        <android.support.design.widget.TextInputLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp">


            <EditText
                android:id="@+id/aTxt_UserName"
                style="@style/edittextstyle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="User Name"
                android:imeOptions="actionNext"
                android:textColorHint="@color/white"
                >

            </EditText>


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

        <!--  Password Label -->
        <android.support.design.widget.TextInputLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="8dp"
            android:layout_marginTop="8dp">

            <EditText
                android:id="@+id/eTxt_PassWord"
                style="@style/edittextstyle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="Password"
                android:inputType="textPassword"
                android:textColorHint="@color/white"
                android:textColor="@color/white" />

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

        <android.support.v7.widget.AppCompatButton
            android:id="@+id/btn_login"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="left"
            android:layout_marginTop="3dp"
            android:background="@drawable/button_shape"
            android:padding="12dp"
            android:text="Login"
            android:textAllCaps="false"
            android:textColor="#ffffff" />
    </LinearLayout>


</RelativeLayout>
    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="20dp"
        android:layout_gravity="bottom|end"
        android:layout_marginRight="@dimen/fab_margin"
        android:visibility="visible"
        app:backgroundTint="@color/colorTrade_2"
        app:elevation="6dp"
        app:pressedTranslationZ="12dp"
        app:fabSize="normal"
        app:rippleColor="@android:color/transparent"
        android:src="@drawable/ic_user_add" />

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

样式.xml

<resources>
    <style name="AppBaseTheme" parent="MyMaterialTheme.Base">
       </style>
    <style name="MyMaterialTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="windowNoTitle">true</item>
        <item name="windowActionBar">false</item>
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:textColor">@color/colorPrimaryDark</item>
        <item name="android:itemBackground">@color/white</item>
    </style>
    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>
    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
    <style name="AppTabTextAppearance" parent="TextAppearance.Design.Tab">
        <item name="android:textSize">12sp</item>
        <item name="textAllCaps">false</item>
    </style>
    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
    <style name="edittextstyle">
        <item name="android:textColor">@color/white</item>
        <item name="android:textSize">14sp</item>
        <item name="android:padding">10dp</item>
        <item name="android:singleLine">true</item>
        <item name="android:textColorHint">@color/white</item>
        <item name="android:inputType">textFilter</item>
    </style>
    <style name="userProfileText">
        <item name="android:textColor">@color/white</item>
        <item name="android:textSize">14sp</item>
        <item name="android:padding">5dp</item>
    </style>
</resources>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android" package="com.trade.seems">
<uses-library android:name="com.google.android.maps" android:required="true" />
<application android:allowBackup="true"
    android:name=".utils.MyApplication"
             android:isolatedProcess="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:largeHeap="true"
    android:theme="@style/AppTheme">
    <meta-data android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />
    <meta-data android:name="com.google.android.geo.API_KEY"
        android:value="@string/google_api_key" />
    <activity android:name=".uil.SplashActivity"
        android:screenOrientation="sensorPortrait">
         <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
    </activity>
    <activity android:name=".ual.login.LoginActivity"
        android:screenOrientation="sensorPortrait"/>
</application>
</manifest>

build.gradle

apply plugin: 'com.android.application'
android {
    compileSdkVersion 23
    buildToolsVersion '23.0.3'
    useLibrary 'org.apache.http.legacy'
    defaultConfig {
        applicationId "com.trade.seems"
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        multiDexEnabled true

    }
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES.txt'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/dependencies.txt'
        exclude 'META-INF/maven/ch.acra/acra/pom.xml'
        exclude 'META-INF/maven/ch.acra/acra/pom.properties'

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
        }
    }
    dexOptions {
        javaMaxHeapSize "2g"
    }
}

dependencies {
    testCompile 'junit:junit:4.12'
    compile files('libs/picasso-2.5.2.jar')
    compile files('libs/httpclient-4.3.6.jar')
    compile files('libs/httpcore-4.3.3.jar')
    compile files('libs/httpmime-4.3.6.jar')
    compile files('libs/YouTubeAndroidPlayerApi.jar')
    compile fileTree(include: ['*.jar'], dir: 'libs')
    /*Support Libraries */
    compile project(':autocomplete_library')
    compile project(':ViewPagerIndicator-Library')
    /*Third party Libraries */
    compile 'es.guiguegon:gallerymodule:1.3.1'
    compile 'de.hdodenhof:circleimageview:2.0.0'
    compile 'com.nineoldandroids:library:2.4.+'
    compile 'com.makeramen:roundedimageview:2.0.1'
    //Library to handle Material design for all Version of android
    compile 'com.rengwuxian.materialedittext:library:2.1.4'
    //Library Glide is to handle Images Instead of picasso
    compile 'com.github.bumptech.glide:glide:3.5.2'
    compile 'com.mcxiaoke.volley:library-aar:1.0.0'


    /*Google  Android Support Library*/
    compile 'com.google.android.gms:play-services-maps:9.4.0'
    compile 'com.google.android.gms:play-services-location:9.4.0'
    compile 'com.android.support:multidex:1.0.0'
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:design:23.1.1'
    compile 'com.android.support:cardview-v7:23.1.1'
    compile 'com.android.support:recyclerview-v7:23.1.1'
    compile 'com.android.support:support-v4:23.1.1' 
}

完整的错误跟踪

com.trade.seems E/AndroidRuntime: FATAL EXCEPTION: main Process: com.trade.seemys, PID: 8225 java.lang.RuntimeException: Unable to start activityComponentInfo{com.tradezap.seemysteps/com.trade.seems.ual.login.LoginActivity}: android.view.InflateException: Binary XML file line #84: Binary XML file line #84: Error inflating class android.support.design.widget.FloatingActionButton
                                                                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
                                                                               at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
                                                                               at android.app.ActivityThread.-wrap11(ActivityThread.java)
                                                                               at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
                                                                               at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                               at android.os.Looper.loop(Looper.java:148)
                                                                               at android.app.ActivityThread.main(ActivityThread.java:5417)
                                                                               at java.lang.reflect.Method.invoke(Native Method)
                                                                               at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                                                                               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
                                                                            Caused by: android.view.InflateException: Binary XML file line #84: Binary XML file line #84: Error inflating class android.support.design.widget.FloatingActionButton
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
                                                                               at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284)
                                                                               at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
                                                                               at com.trade.seems.ual.login.LoginActivity.onCreate(LoginActivity.java:55)
                                                                               at android.app.Activity.performCreate(Activity.java:6251)
                                                                               at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
                                                                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
                                                                               at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                                                                               at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                                                                               at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                                                                               at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                               at android.os.Looper.loop(Looper.java:148) 
                                                                               at android.app.ActivityThread.main(ActivityThread.java:5417) 
                                                                               at java.lang.reflect.Method.invoke(Native Method) 
                                                                               at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                                                                               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                                                                            Caused by: android.view.InflateException: Binary XML file line #84: Error inflating class android.support.design.widget.FloatingActionButton
                                                                               at android.view.LayoutInflater.createView(LayoutInflater.java:645)
                                                                               at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)
                                                                               at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
                                                                               at android.view.LayoutInflater.rInflate(LayoutInflater.java:835)
                                                                               at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
                                                                               at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284) 
                                                                               at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
                                                                               at com.trade.seems.ual.login.LoginActivity.onCreate(LoginActivity.java:55) 
                                                                               at android.app.Activity.performCreate(Activity.java:6251) 
                                                                               at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
                                                                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
                                                                               at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                                                                               at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                                                                               at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                                                                               at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                               at android.os.Looper.loop(Looper.java:148) 
                                                                               at android.app.ActivityThread.main(ActivityThread.java:5417) 
                                                                               at java.lang.reflect.Method.invoke(Native Method) 
                                                                               at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                                                                               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                                                                            Caused by: java.lang.reflect.InvocationTargetException
                                                                               at java.lang.reflect.Constructor.newInstance(Native Method)
                                                                               at android.view.LayoutInflater.createView(LayoutInflater.java:619)
                                                                               at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764) 
                                                                               at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) 
                                                                               at android.view.LayoutInflater.rInflate(LayoutInflater.java:835) 
                                                                               at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:515) 
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
                                                                               at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284) 
                                                                               at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
                                                                               at com.trade.seems.ual.login.LoginActivity.onCreate(LoginActivity.java:55) 
                                                                               at android.app.Activity.performCreate(Activity.java:6251) 
                                                                               at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
                                                                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
                                                                               at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                                                                               at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                                                                               at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                                                                               at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                               at android.os.Looper.loop(Looper.java:148) 
                                                                               at android.app.ActivityThread.main(ActivityThread.java:5417) 
                                                                               at java.lang.reflect.Method.invoke(Native Method) 
                                                                               at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                                                                               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                                                                            Caused by: java.lang.NoSuchMethodError: No direct method <init>(Landroid/widget/ImageView;Landroid/support/v7/widget/AppCompatDrawableManager;)V in class Landroid/support/v7/widget/AppCompatImageHelper; or its super classes (declaration of 'android.support.v7.widget.AppCompatImageHelper' appears in /data/app/com.tradezap.seemysteps-1/base.apk)
                                                                               at android.support.design.widget.FloatingActionButton.<init>(FloatingActionButton.java:133)
                                                                               at android.support.design.widget.FloatingActionButton.<init>(FloatingActionButton.java:110)
                                                                               at java.lang.reflect.Constructor.newInstance(Native Method) 
                                                                               at android.view.LayoutInflater.createView(LayoutInflater.java:619) 
                                                                               at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764) 
                                                                               at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) 
                                                                               at android.view.LayoutInflater.rInflate(LayoutInflater.java:835) 
                                                                               at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:515) 
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
                                                                               at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
                                                                               at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284) 
                                                                               at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
                                                                               at com.trade.seems.ual.login.LoginActivity.onCreate(LoginActivity.java:55) 
                                                                               at android.app.Activity.performCreate(Activity.java:6251) 
                                                                               at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
                                                                               at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
                                                                               at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                                                                               at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                                                                               at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                                                                               at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                               at android.os.Looper.loop(Looper.java:148) 
                                                                               at android.app.ActivityThread.main(ActivityThread.java:5417) 
                                                                               at java.lang.reflect.Method.invoke(Native Method) 
                                                                               at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                                                                               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

Answer 1

在您的案例中，问题出在您的 styles.xml 中，您的基本主题名称是 AppBaseTheme。将其更改为 AppTheme，因为您可以看到您在 Mainfest 文件中使用了 AppTheme。

我列出了所有可能导致类 android.support.design.widget.FloatingActionButton 的原因。请仔细阅读要点。

1. FAB 按钮是 Design Library Cmponent。您的 Activity 必须扩展 AppCompatActivity 而不是 Activity。

2. 您的 Activity 主题也应该是合适的Theme.AppCompat 主题。 FAB 还需要 colorAccent。确保将它们包含在 styles.xml 中。

   <!-- Base application theme. -->
   <style name="AppTheme" parent="Base.AppTheme">
   <!-- Customize your theme here. -->
   </style>
   
   <style name="Base.AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
   <item name="android:colorPrimary">@color/primary</item>
   <item name="android:colorPrimaryDark">@color/primary_dark</item>
   <item name="android:colorAccent">@color/accent</item>
   </style>
   

3. 使用 app:backgroundTint="@color/your_color" 而不是 android:backgroundTint。

4. 不要错过在项目 build.gradle 文件中添加设计库

   dependencies {
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:design:23.1.1'
    ...
   }
   

5. 在 Extras > Android Support Repository 和 Android Support Library 中更新 SDK Manager 上的支持库

希望它能解决您的错误。