我在尝试在我的安卓手机上运行调试模式时得到这个。
为什么应用程序找不到OnUnhandledKeyEventListener是合理的，因为它是在 api 28 中添加的，而我的手机运行 api 27，但为什么它甚至尝试，当它应该是一个支持库时？是库中的错误还是我错过了什么？即使您创建空的android工作室项目并进行重构 ->迁移到AndroidX，也会发生这种情况
I/zygote64: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$OnUnhandledKeyEventListenerWrapper>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;
at void androidx.core.view.ViewCompat.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2422)
at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:637)
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:141)
at void com.infradev.lessontimer.LoginActivity.onCreate(android.os.Bundle) (LoginActivity.java:25)
at void android.app.Activity.performCreate(android.os.Bundle, android.os.PersistableBundle) (Activity.java:7084)
at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:7075)
at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1215)
at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2767)
at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$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:1613)
at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:106)
at void android.os.Looper.loop() (Looper.java:171)
at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6635)
at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2)
at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:547)
at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:823)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/base.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_dependencies_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_resources_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_0_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_1_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_2_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_3_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_4_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_5_apk.apk", zip file "/data/ap
at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:125)
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.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2422)
at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:637)
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:141)
at void com.infradev.lessontimer.LoginActivity.onCreate(android.os.Bundle) (LoginActivity.java:25)
at void android.app.Activity.performCreate(android.os.Bundle, android.os.PersistableBundle) (Activity.java:7084)
at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:7075)
at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1215)
at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2767)
at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$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:1613)
at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:106)
at void android.os.Looper.loop() (Looper.java:171)
at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6635)
at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2)
at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:547)
at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:823)
Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$OnUnhandledKeyEventListenerWrapper>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;
at void androidx.core.view.ViewCompat.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2422)
at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:637)
at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:518)
at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:466)
at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:141)
at void com.infradev.lessontimer.LoginActivity.onCreate(android.os.Bundle) (LoginActivity.java:25)
at void android.app.Activity.performCreate(android.os.Bundle, android.os.PersistableBundle) (Activity.java:7084)
at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:7075)
at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1215)
at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2767)
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$H.handleMessage(android.os.Message) (ActivityThread.java:1613)
at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:106)
at void android.os.Looper.loop() (Looper.java:171)
at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6635)
at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2)
at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:547)
at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:823)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/base.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_dependencies_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_resources_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_0_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_1_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_2_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_3_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_4_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_5_apk.apk", zip file "/data/ap
at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:125)
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.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2422)
at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:637)
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:141)
at void com.infradev.lessontimer.LoginActivity.onCreate(android.os.Bundle) (LoginActivity.java:25)
at void android.app.Activity.performCreate(android.os.Bundle, android.os.PersistableBundle) (Activity.java:7084)
at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:7075)
at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1215)
at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2767)
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$H.handleMessage(android.os.Message) (ActivityThread.java:1613)
at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:106)
at void android.os.Looper.loop() (Looper.java:171)
at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6635)
at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2)
at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:547)
at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:823)
I/zygote64: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$OnUnhandledKeyEventListenerWrapper>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;
at void androidx.core.view.ViewCompat.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2422)
at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:637)
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:141)
at void com.infradev.lessontimer.LoginActivity.onCreate(android.os.Bundle) (LoginActivity.java:25)
at void android.app.Activity.performCreate(android.os.Bundle, android.os.PersistableBundle) (Activity.java:7084)
at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:7075)
at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1215)
at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2767)
at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$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:1613)
at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:106)
at void android.os.Looper.loop() (Looper.java:171)
at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6635)
at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2)
at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:547)
at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:823)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/base.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_dependencies_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_resources_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_0_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_1_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_2_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_3_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_4_apk.apk", zip file "/data/app/com.infradev.lessontimer-oANosPd_Q6S3fKsdUvgGLg==/split_lib_slice_5_apk.apk", zip file "/data/ap
at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:125)
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.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2422)
at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:637)
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:141)
at void com.infradev.lessontimer.LoginActivity.onCreate(android.os.Bundle) (LoginActivity.java:25)
at void android.app.Activity.performCreate(android.os.Bundle, android.os.PersistableBundle) (Activity.java:7084)
at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:7075)
at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1215)
at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2767)
at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$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:1613)
at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:106)
at void android.os.Looper.loop() (Looper.java:171)
at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6635)
at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2)
at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:547)
at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:823)
是库中的错误还是我错过了什么？
这是来自受精卵（I/zygote64）的信息信息。这不是错误。没有错。
当加载一个类（ViewCompat）引用了无法识别的符号（View.OnUnhandledKeyEventListener）时，即使代码不会尝试使用这些符号，你也会得到这种消息。