Didn't find class "android.view.View?

Question

I'm trying to access a different xml file by using an inflater.

LayoutInflater inflater = (LayoutInflater)getBaseContext()
                        .getSystemService(LAYOUT_INFLATER_SERVICE);

View vi = inflater.inflate(R.layout.imagelist_item, null);

TextView title = (TextView)vi.findViewById(R.id.description);
title.setText("My Awesome Text");

But I get the errors "Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList" and "Rejecting re-init on previously-failed class java.lang.Class"

I'm not sure what's causing the problem?

Here's my log:


03/08 20:36:43: Launching 'app' on Nexus 5X API 26.
Waiting for process to come online...
Connected to process 4892 on device 'emulator-5554'.
Capturing and displaying logcat messages from application. This behavior can be disabled in the "Logcat output" section of the "Debugger" settings page.
I/zygote: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$2>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;
        at void androidx.core.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2559)
        at void androidx.appcompat.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62)
        at java.lang.Object java.lang.reflect.Constructor.newInstance0(java.lang.Object[]) (Constructor.java:-2)
        at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:334)
        at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:647)
        at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:790)
I/zygote:     at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:730)
        at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:863)
        at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:824)
        at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:515)
        at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:423)
I/zygote:     at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:374)
        at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:607)
        at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:518)
        at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:466)
        at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140)
        at void edu.cuhk.csci3310.cusweetnames.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:36)
        at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6975)
        at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1213)
        at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2770)
        at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2892)
        at void android.app.ActivityThread.-wrap11(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
        at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1593)
I/zygote:     at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:105)
        at void android.os.Looper.loop() (Looper.java:164)
        at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6541)
        at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2)
        at void com.android.internal.os.Zygote$MethodAndArgsCaller.run() (Zygote.java:240)
        at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:767)
    Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/edu.cuhk.csci3310.cusweetnames-mm4Y3gQqoVOgcskW219QlQ==/base.apk"],nativeLibraryDirectories=[/data/app/edu.cuhk.csci3310.cusweetnames-mm4Y3gQqoVOgcskW219QlQ==/lib/x86, /system/lib, /vendor/lib]]
        at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:93)
        at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:379)
        at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312)
        at void androidx.core.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2559)
        at void androidx.appcompat.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62)
        at java.lang.Object java.lang.reflect.Constructor.newInstance0(java.lang.Object[]) (Constructor.java:-2)
        at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:334)
        at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:647)
        at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:790)
I/zygote:     at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:730)
        at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:863)
        at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:824)
        at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:515)
        at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:423)
        at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:374)
        at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:607)
        at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:518)
I/zygote:     at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:466)
        at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140)
        at void edu.cuhk.csci3310.cusweetnames.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:36)
        at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6975)
        at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1213)

activity_main:

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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="wrap_content"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerview"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />


</androidx.constraintlayout.widget.ConstraintLayout>

imagelist_item.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:padding="6dp">


    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:id="@+id/rl">

        <ImageView
            android:id ="@+id/image"
            android:src="@drawable/p0_frozen_yogurt_milano_fresh_cafe"
            style="@style/image_title" />

        <TextView
            android:id="@+id/description"
            android:textSize="17sp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@+id/image"
            android:layout_toRightOf="@+id/image"

            android:layout_alignTop="@+id/image"
            android:layout_marginStart="170dp"
            android:layout_marginLeft="197dp"
            android:layout_marginTop="10dp"
            android:layout_marginEnd="10dp"
            android:layout_marginRight="-177dp"
            android:layout_marginBottom="10dp"
            android:text="@string/dessert_name"
            android:gravity="top"
            android:textColor="#000000" />

        <TextView
            android:id="@+id/location"
            android:textSize="15sp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@+id/image"
            android:layout_toRightOf="@+id/image"

            android:layout_alignTop="@+id/image"
            android:layout_alignBottom="@+id/image"
            android:layout_marginStart="170dp"
            android:layout_marginLeft="197dp"
            android:layout_marginTop="10dp"
            android:layout_marginEnd="10dp"
            android:layout_marginRight="-177dp"
            android:layout_marginBottom="10dp"
            android:gravity="center_vertical"
            android:text="@string/location"
            android:textColor="#000000" />
        <TextView
            android:id="@+id/rating"
            android:textSize="15sp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@+id/image"
            android:layout_toRightOf="@+id/image"
            android:layout_alignBottom="@+id/image"
            android:layout_marginStart="170dp"
            android:layout_marginLeft="197dp"
            android:layout_marginTop="10dp"
            android:layout_marginEnd="10dp"
            android:layout_marginRight="-177dp"
            android:layout_marginBottom="10dp"
            android:gravity="bottom"
            android:text="@string/rating"
            android:textColor="#000000"
            android:drawableLeft="@drawable/star"
            android:drawablePadding="7dp"
            />
    </RelativeLayout>
</LinearLayout>

gradle (app):

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        applicationId "edu.cuhk.csci3310.cusweetnames"
        minSdkVersion 15
        targetSdkVersion 29
        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:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
    implementation 'androidx.recyclerview:recyclerview:1.1.0'
}

Does this answer your question? [android.view.View$OnUnhandledKeyEventListener](https://stackoverflow.com/questions/51957944/android-view-viewonunhandledkeyeventlistener) — Kirguduck, Mar 08 '20 at 12:10
@Kirguduck I've already seen the other solutions but my gradle implementation is in the 'implementation 'androidx.appcompat:appcompat:1.0.2' format. — Jang Hyeon Choi, Mar 08 '20 at 12:25
did you try to downgrade to version 27 as below compileSdkVersion 27 targetSdkVersion 27 implementation 'com.android.support:appcompat-v7:27.1.1' — Kirguduck, Mar 08 '20 at 13:57
@Kirguduck I get the error message " The specified Android SDK Build Tools version (27.0.2) is ignored, as it is below the minimum supported version (28.0.3) for Android Gradle Plugin 3.5.3. Android SDK Build Tools 28.0.3 will be used." — Jang Hyeon Choi, Mar 08 '20 at 14:00

score 0 · Answer 1 · answered Mar 08 '20 at 14:17

0

the problem is that android.support.v4.view.ViewCompat does not implement View.OnUnhandledKeyEventListener in the new androidx package structure and only implements it starting on API 28 in the support lib structure (at least in version 28.0.0). Therefore the warning appears on devices with API <28 and does not appear on those >=28.
try to add this annotation to your onCreate()

@RequiresApi(28)
public void onCreate...

from here but it will not work with devices before Api28

answered Mar 08 '20 at 14:17

Kirguduck

748
1
9
20

I'm sorry but this didn't work. I still get the same error messages. – Jang Hyeon Choi Mar 08 '20 at 23:25
@JangHyeonChoi i suspect you try to launch your app on Nexus 5X API 26. Read my answer above – Kirguduck Mar 09 '20 at 07:42

Didn't find class "android.view.View?

1 Answers1