«android.view.InflateException» генерируется при накачивании макета элемента RecyclerView в методе onCreateViewHolder на устройствах Marshmallow (6.0+) - PullRequest
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«android.view.InflateException» генерируется при накачивании макета элемента RecyclerView в методе onCreateViewHolder на устройствах Marshmallow (6.0+)

0 голосов
/ 19 мая 2019

Я создал приложение с RecyclerView, используя библиотеки поддержки v7: 28.0.0, и приложение отлично работает на устройствах Android 8.0+ при тестировании. Но при использовании устройств Android 6.0 / 6.0.1 приложение зависало с:

E/AndroidRuntime: FATAL EXCEPTION: main

android.view.InflateException: Binary XML file line #38: Binary XML file line #38: Error inflating class <unknown>

Файл Gradle: 

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>

стили: 

<!-- 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);

    }
}
}

отладки: 

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.

Как заставить приложение работать на версиях Android, начиная с 6.0? Работает ли библиотека поддержки на версиях Android начиная с 6.0? Могу ли я использовать несколько версий библиотек поддержки или мне нужно полностью удалить такие компоненты, как RecyclerView, для более низких версий Android. Пожалуйста, помогите.

1 Ответ

2 голосов
/ 19 мая 2019

Ошибка жалуется на строку 38 из rv_list. То есть: 

android:src="@drawable/ic_launcher_foreground"

В типичном проекте Android Studio ic_launcher_foreground определяется в res/drawable-v24/. Это говорит о том, что «используйте этот ресурс только на устройствах уровня API 24 и выше». Таким образом, если вы не сделали что-то для создания другой версии этого ресурса, которая будет работать на старых устройствах, вы не сможете надуть свой макет на Android 6.0 (уровень API 23) и ниже.

Вам нужен этот атрибут android:src, чтобы указать на доступный для рисования ресурс, который есть во всех версиях Android. Или, если вы планируете заполнить ImageView во время выполнения, удалите android:src из макета.

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