"android.view.InflateException" 在 Marshmallow(6.0+) 设备上的 onCreateViewHolder 方法中膨胀 RecyclerView 项目的布局时被抛出
"android.view.InflateException" being thrown on inflating RecyclerView item's layout in onCreateViewHolder method on Marshmallow(6.0+) devices
我使用 v7:28.0.0 支持库创建了一个带有 RecyclerView 的应用，测试时应用 运行 在 Android 8.0+ 设备上运行良好。但是当使用 Android 6.0/6.0.1 设备时，应用程序崩溃了：
E/AndroidRuntime: FATAL EXCEPTION: main
android.view.InflateException: Binary XML file line #38: Binary XML file line #38: Error inflating class <unknown>
Gradle 文件:
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.toastinterceptor"
minSdkVersion 23
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner
"androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0-alpha05'
implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta1'
implementation 'com.google.android.material:material:1.1.0-alpha06'
testImplementation 'junit:junit:4.13-beta-3'
androidTestImplementation 'androidx.test:runner:1.2.0-beta01'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0-beta01'
// support dependencies
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'
// Room dependencies
def room_version = "2.1.0-beta01"
implementation "androidx.room:room-runtime:$room_version"
annotationProcessor "androidx.room:room-compiler:$room_version"
testImplementation "androidx.room:room-testing:$room_version"
// support design dependencies
implementation "com.android.support:design:28.0.0"
implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
}
activity_main:
<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"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:listitem="@layout/rv_list"
android:scrollbars="vertical"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
/>
<TextView
android:id="@+id/empty_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:visibility="gone"
android:text="@string/nothing_to_show" />
rv_list:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:background="@drawable/border"
android:orientation="vertical"
android:padding="5dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/tv_date"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.8"
android:gravity="center_vertical"
android:hint="@string/event_time"
android:textSize="15sp" />
<ImageView
android:id="@+id/iv_options"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.1"
android:contentDescription="@string/options_icon"
android:src="@drawable/ic_garbage" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="@+id/iv_icon"
android:layout_width="65dp"
android:layout_height="65dp"
android:contentDescription="@string/app_icon"
android:src="@drawable/ic_launcher_foreground" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:divider="@drawable/divider_horizontal"
android:orientation="vertical"
android:showDividers="middle"
android:padding="5dp">
<TextView
android:id="@+id/tv_pkgName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/package_name"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:textSize="15sp" />
<TextView
android:id="@+id/tv_msg"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/toast_content"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:textSize="15sp" />
</LinearLayout>
</LinearLayout>
样式：
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
<style name="AppTheme.NoActionBar">
<item name="windowActionBar">true</item>
<item name="windowNoTitle">false</item>
</style>
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
RecyclerView.Adapter class:
public class ToastListAdapter extends RecyclerView.Adapter<ToastListAdapter.ToastViewHolder> {
private Context context;
private LayoutInflater inflater;
private List<ToastEntity> toasts = Collections.emptyList();
private ToastRepository toastRepository;
ToastListAdapter(Application application) {
this.context = application.getApplicationContext();
inflater = LayoutInflater.from(context);
toastRepository = new ToastRepository(application);
}
void setToasts(List<ToastEntity> toasts) {
this.toasts = toasts;
notifyDataSetChanged();
}
@NonNull
@Override
public ToastViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.rv_list, parent, false);
return new ToastViewHolder(view);
}
...
...
class ToastViewHolder extends RecyclerView.ViewHolder {
private TextView tv_date, tv_pkgName, tv_msg;
private ImageView iv_icon, iv_options;
ToastViewHolder(@NonNull View itemView) {
super(itemView);
tv_date = itemView.findViewById(R.id.tv_date);
tv_pkgName = itemView.findViewById(R.id.tv_pkgName);
tv_msg = itemView.findViewById(R.id.tv_msg);
iv_options = itemView.findViewById(R.id.iv_options);
iv_icon = itemView.findViewById(R.id.iv_icon);
}
}
}
调试：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.toastinterceptor, PID: 7581
android.view.InflateException: Binary XML file line #38: Binary XML file line #38: Error inflating class <unknown>
at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at com.example.toastinterceptor.ToastListAdapter.onCreateViewHolder(ToastListAdapter.java:46)
at com.example.toastinterceptor.ToastListAdapter.onCreateViewHolder(ToastListAdapter.java:24)
at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6949)
at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6118)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6001)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5997)
at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2227)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1558)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1518)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:613)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4032)
at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3749)
at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4302)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:2001)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1844)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1753)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:2001)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1844)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1753)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:2001)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1844)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1753)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at com.android.internal.policy.PhoneWindow$DecorView.onLayout(PhoneWindow.java:2763)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2640)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2285)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1343)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6826)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:901)
at android.view.Choreographer.doCallbacks(Choreographer.java:703)
at android.view.Choreographer.doFrame(Choreographer.java:638)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:887)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Loope
Application terminated.
如何使应用程序 运行 在 Android 版本上从 6.0 开始？支持库是否适用于从 6.0 开始的 Android 版本？我可以使用多个版本的支持库，还是必须为较低的 Android 版本完全删除 RecyclerView 等组件。请协助。
错误是关于 rv_list 的第 38 行。即：
android:src="@drawable/ic_launcher_foreground"
在典型的 Android Studio 项目中，ic_launcher_foreground 定义在 res/drawable-v24/ 中。这表示 "only use this resource on API Level 24 and higher devices"。因此，除非您已经创建了适用于旧设备的此资源的另一个版本，否则您无法在 Android 6.0（API 级别 23）及以下版本上扩充布局。
您需要 android:src 属性指向所有版本 Android 上的可绘制资源。或者，如果您计划在运行时填写 ImageView，请从布局中删除 android:src。
我使用 v7:28.0.0 支持库创建了一个带有 RecyclerView 的应用，测试时应用 运行 在 Android 8.0+ 设备上运行良好。但是当使用 Android 6.0/6.0.1 设备时，应用程序崩溃了：
E/AndroidRuntime: FATAL EXCEPTION: main
android.view.InflateException: Binary XML file line #38: Binary XML file line #38: Error inflating class <unknown>
Gradle 文件:
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.toastinterceptor"
minSdkVersion 23
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner
"androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0-alpha05'
implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta1'
implementation 'com.google.android.material:material:1.1.0-alpha06'
testImplementation 'junit:junit:4.13-beta-3'
androidTestImplementation 'androidx.test:runner:1.2.0-beta01'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0-beta01'
// support dependencies
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'
// Room dependencies
def room_version = "2.1.0-beta01"
implementation "androidx.room:room-runtime:$room_version"
annotationProcessor "androidx.room:room-compiler:$room_version"
testImplementation "androidx.room:room-testing:$room_version"
// support design dependencies
implementation "com.android.support:design:28.0.0"
implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
}
activity_main:
<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"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:listitem="@layout/rv_list"
android:scrollbars="vertical"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
/>
<TextView
android:id="@+id/empty_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:visibility="gone"
android:text="@string/nothing_to_show" />
rv_list:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:background="@drawable/border"
android:orientation="vertical"
android:padding="5dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/tv_date"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.8"
android:gravity="center_vertical"
android:hint="@string/event_time"
android:textSize="15sp" />
<ImageView
android:id="@+id/iv_options"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.1"
android:contentDescription="@string/options_icon"
android:src="@drawable/ic_garbage" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="@+id/iv_icon"
android:layout_width="65dp"
android:layout_height="65dp"
android:contentDescription="@string/app_icon"
android:src="@drawable/ic_launcher_foreground" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:divider="@drawable/divider_horizontal"
android:orientation="vertical"
android:showDividers="middle"
android:padding="5dp">
<TextView
android:id="@+id/tv_pkgName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/package_name"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:textSize="15sp" />
<TextView
android:id="@+id/tv_msg"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/toast_content"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:textSize="15sp" />
</LinearLayout>
</LinearLayout>
样式：
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
<style name="AppTheme.NoActionBar">
<item name="windowActionBar">true</item>
<item name="windowNoTitle">false</item>
</style>
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
RecyclerView.Adapter class:
public class ToastListAdapter extends RecyclerView.Adapter<ToastListAdapter.ToastViewHolder> {
private Context context;
private LayoutInflater inflater;
private List<ToastEntity> toasts = Collections.emptyList();
private ToastRepository toastRepository;
ToastListAdapter(Application application) {
this.context = application.getApplicationContext();
inflater = LayoutInflater.from(context);
toastRepository = new ToastRepository(application);
}
void setToasts(List<ToastEntity> toasts) {
this.toasts = toasts;
notifyDataSetChanged();
}
@NonNull
@Override
public ToastViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.rv_list, parent, false);
return new ToastViewHolder(view);
}
...
...
class ToastViewHolder extends RecyclerView.ViewHolder {
private TextView tv_date, tv_pkgName, tv_msg;
private ImageView iv_icon, iv_options;
ToastViewHolder(@NonNull View itemView) {
super(itemView);
tv_date = itemView.findViewById(R.id.tv_date);
tv_pkgName = itemView.findViewById(R.id.tv_pkgName);
tv_msg = itemView.findViewById(R.id.tv_msg);
iv_options = itemView.findViewById(R.id.iv_options);
iv_icon = itemView.findViewById(R.id.iv_icon);
}
}
}
调试：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.toastinterceptor, PID: 7581
android.view.InflateException: Binary XML file line #38: Binary XML file line #38: Error inflating class <unknown>
at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at com.example.toastinterceptor.ToastListAdapter.onCreateViewHolder(ToastListAdapter.java:46)
at com.example.toastinterceptor.ToastListAdapter.onCreateViewHolder(ToastListAdapter.java:24)
at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6949)
at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6118)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6001)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5997)
at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2227)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1558)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1518)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:613)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4032)
at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3749)
at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4302)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:2001)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1844)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1753)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:2001)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1844)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1753)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:2001)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1844)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1753)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at com.android.internal.policy.PhoneWindow$DecorView.onLayout(PhoneWindow.java:2763)
at android.view.View.layout(View.java:17211)
at android.view.ViewGroup.layout(ViewGroup.java:5584)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2640)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2285)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1343)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6826)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:901)
at android.view.Choreographer.doCallbacks(Choreographer.java:703)
at android.view.Choreographer.doFrame(Choreographer.java:638)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:887)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Loope
Application terminated.
如何使应用程序 运行 在 Android 版本上从 6.0 开始？支持库是否适用于从 6.0 开始的 Android 版本？我可以使用多个版本的支持库，还是必须为较低的 Android 版本完全删除 RecyclerView 等组件。请协助。
错误是关于 rv_list 的第 38 行。即：
android:src="@drawable/ic_launcher_foreground"
在典型的 Android Studio 项目中，ic_launcher_foreground 定义在 res/drawable-v24/ 中。这表示 "only use this resource on API Level 24 and higher devices"。因此，除非您已经创建了适用于旧设备的此资源的另一个版本，否则您无法在 Android 6.0（API 级别 23）及以下版本上扩充布局。
您需要 android:src 属性指向所有版本 Android 上的可绘制资源。或者，如果您计划在运行时填写 ImageView，请从布局中删除 android:src。