我正在尝试按照以下说明测试 fragment :https://developer.android.com/training/basics/fragments/testing
但是,当我从我的测试中调用 launchFragmentInContainer
时,我遇到了以下崩溃。
堆栈跟踪:
android.view.InflateException: Binary XML file line #16: Binary XML file line #16: Error inflating class <unknown>
Caused by: android.view.InflateException: Binary XML file line #16: Error inflating class <unknown>
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
...
at android.view.LayoutInflater.$$robo$$android_view_LayoutInflater$createView(LayoutInflater.java:647)
...
at com.myapp.poll.PollHomeFragment.onCreateView(PollHomeFragment.kt:31)
...
Caused by: java.lang.UnsupportedOperationException: Failed to resolve attribute at index 13: TypedValue{t=0x2/d=0x7f0301b1 a=-1}
at android.content.res.TypedArray.getDrawableForDensity(TypedArray.java:946)
at android.content.res.TypedArray.getDrawable(TypedArray.java:930)
at android.view.View.__constructor__(View.java:5010)
at android.view.View.<init>(View.java)
at android.widget.TextView.<init>(TextView.java)
...
at com.myapp.poll.PollHomeFragment.onCreateView(PollHomeFragment.kt:31)
这是布局:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
tools:context=".poll.PollActivity">
<TextView
android:id="@+id/tvEmail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:text="asdf@asdf.com" />
<TextView <!-- This is line 16 -->
android:id="@+id/tvViewPoll"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:minHeight="48dp"
android:text="View Poll" />
<TextView
android:id="@+id/tvCreatePoll"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:minHeight="48dp"
android:text="Create Poll" />
最佳答案
好的,从基于堆栈跟踪的有根据的猜测中,我尝试删除 android:background="?attr/selectableItemBackground"
并且这解决了问题。
似乎 ?attr/selectableItemBackground
可能与 FragmentScenario 不兼容,或者这是一个框架错误。
我在问题跟踪器上提交了一个错误:https://issuetracker.google.com/issues/144629519
来自 Google 的更新:
Status: Won't Fix (Intended Behavior) The default theme does not have an app defined attribute ?attr/selectableItemBackground (as Fragment has no dependency on AppCompat, MDC, etc)
It sounds like you should be passing the correct theme to FragmentScenario:
launchFragmentInContainer<PollHomeFragment>(themeResId = R.style.Theme_YourTheme)
关于android - fragment 测试错误 : android. view.InflateException: Binary XML file line #16: Binary XML file line #16: Error inflating class <unknown>,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/58903155/