带有 png 源的 androidx 小部件 AppCompatImageView 不会在 Lollipop 设备中膨胀？

Question

我将项目转换为使用 androidx 组件。

I have an image view that works on android q emulator and Nougat but shows error on lollipop emulator.

这是 xml 文件相关部分：

        <androidx.appcompat.widget.AppCompatImageView
            android:id="@+id/appCompatImageView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginLeft="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginRight="8dp"
            android:src="@drawable/scalelines" 
            />

源图片为png格式。虽然它适用于 android q。给出以下错误：

android.view.InflateException: Binary XML file line #98: Error inflating class androidx.appcompat.widget.AppCompatImageView
    at android.view.LayoutInflater.createView(LayoutInflater.java:633)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
    at com.example.e.Fragments.Home.onCreateView(Home.java:93)
    at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2595)
    at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:881)
    at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238)
    at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1303)
    at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:439)
    at androidx.fragment.app.FragmentManagerImpl.executeOps(FragmentManagerImpl.java:2076)
    at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1866)
    at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1821)
    at androidx.fragment.app.FragmentManagerImpl.execSingleAction(FragmentManagerImpl.java:1696)
    at androidx.fragment.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:299)
    at androidx.fragment.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:230)
    at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1244)
    at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1092)
    at androidx.viewpager.widget.ViewPager.onMeasure(ViewPager.java:1622)
    at android.view.View.measure(View.java:17547)
    at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:727)
    at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:463)
    at android.view.View.measure(View.java:17547)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535)
    at androidx.coordinatorlayout.widget.CoordinatorLayout.onMeasureChild(CoordinatorLayout.java:733)
    at androidx.coordinatorlayout.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:805)
    at android.view.View.measure(View.java:17547)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535)
    at android.widget.FrameLayout.onMeasure(FrameLayout.java:436)
    at androidx.appcompat.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143)
    at android.view.View.measure(View.java:17547)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535)
    at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
    at android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
    at android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
    at android.view.View.measure(View.java:17547)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535)
    at android.widget.FrameLayout.onMeasure(FrameLayout.java:436)
    at android.view.View.measure(View.java:17547)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535)
    at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
    at android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
    at android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
    at android.view.View.measure(View.java:17547)
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535)
    at android.widget.FrameLayout.onMeasure(FrameLayout.java:436)
    at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2615)
    at android.view.View.measure(View.java:17547)
    at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2015)
    at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1173)
    at android.view.View

我怎样才能使它与 png 图像源一起工作而不会在棒棒糖或旧设备中崩溃？

Answer 1

I think you have placed your image inside drawable-v24 instead of drawable. Goto Project Structure of your app to verify it or if you want just move files to drawable .

Answer 2

从附加的代码或异常中不清楚为什么会崩溃。请附上您完整的布局文件，也许还有您用来扩充片段的主题（您的主题可能有误）。此外，根据 AppCompatImageView 的文档，您不应在布局中直接使用 AppCompatImageView。它将自动使用，顶级 activity 由 appcompat 提供。

带有 png 源的 androidx 小部件 AppCompatImageView 不会在 Lollipop 设备中膨胀？

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