尝试使用 Snackbar 时出现 InflateException答案

【问题标题】：InflateException when trying to use a Snackbar尝试使用 Snackbar 时出现 InflateException
【发布时间】：2017-11-28 15:54:11
【问题描述】：

我有一个Snackbar，它应该显示在向服务器发出数据请求后没有找到任何度假村的情况下。每次需要显示 Snackbar 时，我都会收到此异常：

java.lang.RuntimeException: An error occurred while executing doInBackground()
                                                                 at android.os.AsyncTask$3.done(AsyncTask.java:309)
                                                                 at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
                                                                 at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
                                                                 at java.util.concurrent.FutureTask.run(FutureTask.java:242)
                                                                 at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
                                                                 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
                                                                 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
                                                                 at java.lang.Thread.run(Thread.java:818)
                                                              Caused by: android.view.InflateException: Binary XML file line #41: Binary XML file line #41: Error inflating class <unknown>
                                                                 at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
                                                                 at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
                                                                 at android.support.design.widget.Snackbar.make(Snackbar.java:143)
                                                                 at com.tripoffbeat.Result$LoadAllResorts.doInBackground(Result.java:565)
                                                                 at com.tripoffbeat.Result$LoadAllResorts.doInBackground(Result.java:432)
                                                                 at android.os.AsyncTask$2.call(AsyncTask.java:295)
                                                                 at java.util.concurrent.FutureTask.run(FutureTask.java:237)
                                                                 at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) 
                                                                 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
                                                                 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
                                                                 at java.lang.Thread.run(Thread.java:818) 
                                                              Caused by: android.view.InflateException: Binary XML file line #41: Error inflating class <unknown>
                                                                 at android.view.LayoutInflater.createView(LayoutInflater.java:645)
                                                                 at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58)
                                                                 at android.view.LayoutInflater.onCreateView(LayoutInflater.java:694)
                                                                 at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:762)
                                                                 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.support.design.widget.Snackbar.make(Snackbar.java:143) 
                                                                 at com.tripoffbeat.Result$LoadAllResorts.doInBackground(Result.java:565) 
                                                                 at com.tripoffbeat.Result$LoadAllResorts.doInBackground(Result.java:432) 
                                                                 at android.os.AsyncTask$2.call(AsyncTask.java:295) 
                                                                 at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
                                                                 at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) 
                                                                 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
                                                                 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
                                                                 at java.lang.Thread.run(Thread.java:818) 
                                                              Caused by: java.lang.reflect.InvocationTargetException
                                                                 at java.lang.reflect.Constructor.newInstance(Native Method)
                                                                 at android.view.LayoutInflater.createView(LayoutInflater.java:619)
                                                                 at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58) 
                                                                 at android.view.LayoutInflater.onCreateView(LayoutInflater.java:694) 
                                                                 at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:762) 
                                                                 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.support.design.widget.Snackbar.make(Snackbar.java:143) 
                                                                 at com.tripoffbeat.Result$LoadAllResorts.doInBackground(Result.java:565) 
                                                                 at com.tripoffbeat.Result$LoadAllResorts.doInBackground(Result.java:432) 
                                                                 at android.os.AsyncTask$2.call(AsyncTask.java:295) 
                                                                 at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
                                                                 at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) 
                                                                 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
                                                                 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
                                                                 at java.lang.Thread.run(Thread.java:818) 
                                                              Caused by: java.lang.UnsupportedOperationException: Failed to resolve attribute at index 5: TypedValue{t=0x2/d=0x7f0100b0 a=-1}
                                                                 at android.content.res.TypedArray.getColorStateList(TypedArray.java:482)
                                                                 at android.widget.TextView.<init>(TextView.java:1043)
                                                                 at android.widget.Button.<init>(Button.java:109)
                                                                 at android.widget.Button.<init>(Button.java:105)
                                                                 at android.widget.Button.<init>(Button.java:101)
                                                                 at java.lang.reflect.Constructor.newInstance(Native Method) 
                                                                 at android.view.LayoutInflater.createView(LayoutInflater.java:619) 
                                                                 at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58) 
                                                                 at android.view.LayoutInflater.onCreateView(LayoutInflater.java:694) 
                                                                 at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:762) 
                                                                 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.support.design.widget.Snackbar.make(Snackbar.java:143) 
                                                                 at com.tripoffbeat.Result$LoadAllResorts.doInBackground(Result.java:565) 
                                                                 at com.tripoffbeat.Result$LoadAllResorts.doInBackground(Result.java:432) 
                                                                 at android.os.AsyncTask$2.call(AsyncTask.java:295) 
                                                                 at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
                                                                 at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) 
                                                                 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
                                                                 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
                                                                 at java.lang.Thread.run(Thread.java:818)

我当前的课程扩展了ListActivity 并正在实现ActionBar。

出错的那一行：

pDialog.dismiss();
                Snackbar.make(parentLayout, "No resorts found", Snackbar.LENGTH_INDEFINITE)
                        .setAction("CLOSE", new View.OnClickListener() {
                            @Override
                            public void onClick(View view) {
                                Bundle data = getIntent().getExtras();
                                Intent i = new Intent(Result.this, OptionList.class);
                                i.putExtras(data);
                                setResult(RESULT_OK, getIntent());
                                finish();
                            }
                        })
                        .setActionTextColor(getResources().getColor(android.R.color.holo_blue_dark ))
                        .show();

如果我用 Toast 替换 Snackbar 消息，它可以正常工作。

活动的 XML：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="1"
app:layout_collapseParallaxMultiplier="1.0"
app:layout_scrollFlags="scroll">

<TextView
    android:id="@+id/textView4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_vertical|center_horizontal"
    android:paddingBottom="5dp"
    android:paddingTop="5dp"
    android:text="All resorts and prices"
    android:textColor="@android:color/background_dark"
    android:textSize="20sp" />

<ListView
    android:id="@+id/android:list"
    android:layout_width="match_parent"
    android:layout_height="430dp"
    android:layout_gravity="center_vertical|center_horizontal"
    android:animateLayoutChanges="true"
    android:background="@color/cover_overlay"
    android:choiceMode="multipleChoice"
    android:footerDividersEnabled="false"
    android:headerDividersEnabled="false"
    android:outlineProvider="bounds"
    android:paddingBottom="10dp"
    android:paddingEnd="10dp"
    android:paddingLeft="10dp"
    android:paddingRight="10dp"
    android:paddingStart="10dp"
    android:soundEffectsEnabled="true"
    android:splitMotionEvents="true" />

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="center_vertical|center_horizontal"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_marginLeft="5dp"
        android:layout_marginRight="5dp"
        android:layout_weight="1"
        android:paddingTop="7dp"
        android:text="Sort by:"
        android:textColor="@android:color/background_dark"
        android:textSize="16sp" />

    <HorizontalScrollView
        android:layout_width="302dp"
        android:layout_height="wrap_content"
        android:layout_marginRight="5dp">

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

            <RadioGroup
                android:id="@+id/rad"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:orientation='horizontal'>

                <RadioButton
                    android:id="@+id/sort_price"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:checked="true"
                    android:text="Price"
                    android:textColor="@android:color/background_dark" />

                <RadioButton
                    android:id="@+id/sort_alpha"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:checked="false"
                    android:duplicateParentState="false"
                    android:text="Alphabetically"
                    android:textAlignment="center"
                    android:textColor="@android:color/background_dark" />

                <RadioButton
                    android:id="@+id/sort_states"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:checked="false"
                    android:duplicateParentState="false"
                    android:text="State"
                    android:textAlignment="center"
                    android:textColor="@android:color/background_dark" />

                <RadioButton
                    android:id="@+id/sort_city"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:text="Cities" />

                <RadioButton
                    android:id="@+id/sort_dist"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:text="Distance" />

            </RadioGroup>
        </LinearLayout>
    </HorizontalScrollView>

</LinearLayout>

父布局代码：

parentLayout = findViewById(android.R.id.content);

在我添加操作栏之前，Snackbar 运行良好。

对于这个活动，我使用的是Theme.Holo.Light.ActionBar Android 清单：

<activity android:name=".Result"
        android:launchMode="singleTop"
        android:theme="@android:style/Theme.Holo.Light.DarkActionBar"
        android:parentActivityName="com.tripoffbeat.OptionList"/>

在我的styles.xml 中，我的主题是<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">。

【问题讨论】：

也发布你的xml
完成@quicklearner
使用 CoordinatorLayout 作为父布局，查看这个例子androidhive.info/2015/09/…
我会尝试这样做，但在我添加操作栏之前，Snackbar 运行良好。对此有什么想法吗？ @快速学习者
你能发布整个堆栈跟踪吗？

标签： java android xml android-layout android-snackbar

【解决方案1】：

当Snackbar 膨胀its content layout 时，它会从该布局中cannot inflate a Button，因为它无法从当前上下文的主题中找到?attr/colorAccent。发生这种情况是因为您的活动主题不是AppCompat 主题的后代。

所以，而不是：

android:theme="@android:style/Theme.Holo.Light.DarkActionBar"

应用一些 appcompatish 主题。假设您的应用程序的主题是Theme.AppCompat.Light.DarkActionBar，从清单中删除该行将解决您的错误。

【讨论】：

是的，它做到了！谢谢！