在 Android Lollipop 中膨胀 class android.support.v7.widget.Toolbar 时出错

Question

我为我的项目使用 android.support 库，我使用 android 4.4 开发了我的应用程序并且一切正常但是当我尝试运行中的应用程序时我的问题来了带有 Android Lollipop 的设备。

当它用工具栏加载 Activity 时，应用程序停止并且 returns 此错误。

膨胀时出错 class android.support.v7.widget.Toolbar

我在网上也发现了同样的问题，但我没有在答案中找到解决方案。

这是我的styles.xml

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <!-- Customize your theme here. -->
<!-- Base theme applied no matter what API -->
    <item name="android:windowNoTitle">true</item>
    <item name="windowActionBar">false</item>
    <item name="colorPrimary">@color/primary</item>
    <item name="colorPrimaryDark">@color/dark_primary</item>
    <item name="colorAccent">@color/accent_color</item>
</style>

这是我的 styles.xml (v22)

<resources>
    <!-- Base application theme. -->
    <style name="AppTheme" parent="android:Theme.Material.Light.NoActionBar">
        <item name="colorPrimary">@color/primary</item>
        <item name="colorPrimaryDark">@color/dark_primary</item>
        <item name="colorAccent">@color/accent_color</item>
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>
</resources>

在.xml

中定义工具栏

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:local="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/mitoolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="?attr/actionBarSize"
    android:background="?attr/colorPrimary"
    local:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    local:popupTheme="@style/ThemeOverlay.AppCompat.Light"
    tools:showIn="@layout/activity_main" />

在我的 MainActivty 中，我只包含了该工具栏：

<include layout="@layout/toolbar" />

最后是我的 MainActivity.java

的 header

public class MainActivity extends android.support.v7.app.ActionBarActivity
        implements NavigationDrawerFragment.NavigationDrawerCallbacks {

     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main); //Here stops my application
}

这是logcat

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.fitness.dullmonkey.keepingfit/com.fitness.dullmonkey.keepingfit.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.v7.widget.Toolbar
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2581)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2656)
            at android.app.ActivityThread.access0(ActivityThread.java:178)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1512)
            at android.os.Handler.dispatchMessage(Handler.java:111)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5691)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
     Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.v7.widget.Toolbar
            at android.view.LayoutInflater.createView(LayoutInflater.java:633)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
            at android.view.LayoutInflater.parseInclude(LayoutInflater.java:892)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
            at com.fitness.dullmonkey.keepingfit.MainActivity.onCreate(MainActivity.java:40)
            at android.app.Activity.performCreate(Activity.java:6142)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1115)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2528)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2656)
            at android.app.ActivityThread.access0(ActivityThread.java:178)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1512)
            at android.os.Handler.dispatchMessage(Handler.java:111)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5691)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
     Caused by: java.lang.reflect.InvocationTargetException
            at java.lang.reflect.Constructor.newInstance(Native Method)
            at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
            at android.view.LayoutInflater.createView(LayoutInflater.java:607)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
            at android.view.LayoutInflater.parseInclude(LayoutInflater.java:892)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
            at com.fitness.dullmonkey.keepingfit.MainActivity.onCreate(MainActivity.java:40)
            at android.app.Activity.performCreate(Activity.java:6142)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1115)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2528)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2656)
            at android.app.ActivityThread.access0(ActivityThread.java:178)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1512)
            at android.os.Handler.dispatchMessage(Handler.java:111)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5691)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
     Caused by: java.lang.RuntimeException: Failed to resolve attribute at index 216
            at android.content.res.TypedArray.getDimensionPixelSize(TypedArray.java:569)
            at android.view.View.<init>(View.java:4084)
            at android.view.ViewGroup.<init>(ViewGroup.java:524)
            at android.view.ViewGroup.<init>(ViewGroup.java:520)
            at android.support.v7.widget.Toolbar.<init>(Toolbar.java:195)
            at android.support.v7.widget.Toolbar.<init>(Toolbar.java:191)
            at java.lang.reflect.Constructor.newInstance(Native Method)
            at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
            at android.view.LayoutInflater.createView(LayoutInflater.java:607)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
            at android.view.LayoutInflater.parseInclude(LayoutInflater.java:892)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
            at com.fitness.dullmonkey.keepingfit.MainActivity.onCreate(MainActivity.java:40)
            at android.app.Activity.performCreate(Activity.java:6142)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1115)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2528)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2656)
            at android.app.ActivityThread.access0(ActivityThread.java:178)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1512)
            at android.os.Handler.dispatchMessage(Handler.java:111)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5691)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)

预先感谢您的帮助。

Answer 1

错误的原因是，在工具栏xml中，?attr前缀指的是支持库主题中的属性。另一方面，在上面 style.xml 的 v22 下，使用系统主题 android:Theme.Material.Light.NoActionBar 而不是支持库主题。因此，inflater 无法解析支持库的属性，例如 ?attr/actionBarSize.

使用 style.xml 中的支持库主题 Theme.AppCompat.Light.NoActionBar（无论版本如何）解决了该问题。

Answer 2

在我的情况下出现相同的错误，但在 android axml 文件

中没有出现 ?attr 的症状

它看起来像是 Xamarin.Appcombat 的兼容性问题（我在网上找到的某个地方）

尝试将同一个项目部署到较低的 Android API

在我的情况下 Android 模拟器 API 21 有上面的错误，但是另一个带有 Android API 18 的模拟器完全没有问题

在 Android Lollipop 中膨胀 class android.support.v7.widget.Toolbar 时出错

Error inflating class android.support.v7.widget.Toolbar in Android Lollipop

android

android-support-library

android-styles

android-5.0-lollipop