我的logcat到底是什么意思，我该如何修复它？

Question

出于某些原因，我的应用程序喜欢在API 23 (棉花糖)或更高版本上运行得很好。但是当它试图在API 22 (棒棒糖)上运行时，它立即崩溃，我就是不明白为什么。

我试着注释掉任何东西，即使是最小的注释，但它仍然会这样做。我发现，如果不注释掉所有的the视图，应用程序甚至无法启动。

这是我在Android Studio中尝试在API 22上模拟Pixel 2启动应用程序时得到的logcat。为了进一步参考，是的，我在没有自定义WebView类的情况下尝试了它，但它仍然抛出相同的错误。

09-22 15:07:55.644 3443-3443/? I/art: Not late-enabling -Xcheck:jni (already on)
09-22 15:07:55.727 3443-3443/test.webview W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter
 androidx.vectordrawable.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.
PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have
incorrectly overridden the package-private method in android.graphics.drawable.Drawable
09-22 15:07:55.749 3443-3443/test.webview I/art: Rejecting re-init on previously-failed class java.lang.Class<
androidx.core.view.ViewCompat$2>
09-22 15:07:55.750 3443-3443/test.webview I/art: Rejecting re-init on previously-failed class java.lang.Class<
androidx.core.view.ViewCompat$2>
09-22 15:07:55.808 3443-3443/test.webview I/WebViewFactory: Loading com.android.webview version 39 (5525941-x86_64
) (code 300008)
09-22 15:07:55.812 3443-3443/test.webview I/LibraryLoader: Time to load native libraries: 1 ms (timestamps 9226-
9227)
09-22 15:07:55.812 3443-3443/test.webview I/LibraryLoader: Expected native library version number "",actual native
 library version number ""
09-22 15:07:55.817 3443-3443/test.webview V/WebViewChromiumFactoryProvider: Binding Chromium to main looper Looper
 (main, tid 1) {204b24c3}
09-22 15:07:55.817 3443-3443/test.webview I/LibraryLoader: Expected native library version number "",actual native
 library version number ""
09-22 15:07:55.817 3443-3443/test.webview I/chromium: [INFO:library_loader_hooks.cc(104)] Chromium logging enabled
: level = 0, default verbosity = 0
09-22 15:07:55.819 3443-3443/test.webview I/BrowserStartupController: Initializing chromium process, singleProcess
=true
09-22 15:07:55.820 3443-3443/test.webview W/art: Attempt to remove local handle scope entry from IRT, ignoring
09-22 15:07:55.827 3443-3443/test.webview W/chromium: [WARNING:resource_bundle.cc(304)] locale_file_path.empty()
09-22 15:07:55.828 3443-3443/test.webview I/chromium: [INFO:aw_browser_main_parts.cc(65)] Load from apk succesful
, fd=31 off=46184 len=3037
09-22 15:07:55.828 3443-3443/test.webview I/chromium: [INFO:aw_browser_main_parts.cc(78)] Loading webviewchromium.
pak from, fd:32 off:229484 len:1089587
09-22 15:07:55.829 3443-3467/test.webview W/AudioManagerAndroid: Requires BLUETOOTH permission
09-22 15:07:55.854 3443-3443/test.webview D/EGL_emulation: eglCreateContext: 0x7fa99e8df2a0: maj 2 min 0 rcv 2
09-22 15:07:55.855 3443-3443/test.webview D/EGL_emulation: eglMakeCurrent: 0x7fa99e8df2a0: ver 2 0 (tinfo
0x7fa99e8d4a60)
09-22 15:07:55.877 3443-3443/test.webview W/chromium: [WARNING:data_reduction_proxy_settings.cc(331)] SPDY proxy
OFF at startup
09-22 15:07:55.882 3443-3443/test.webview W/ResourceType: No known package when getting value for resource number
0x02040003
09-22 15:07:55.882 3443-3443/test.webview D/AndroidRuntime: Shutting down VM
09-22 15:07:55.883 3443-3443/test.webview E/AndroidRuntime: FATAL EXCEPTION: main
 Process: test.webview, PID: 3443
 java.lang.RuntimeException: Unable to start activity ComponentInfo{test.webview/test.webview.MainActivity}:
android.view.InflateException: Binary XML file line #9: Error inflating class android.webkit.WebView
 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325)
 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
 at android.app.ActivityThread.access$800(ActivityThread.java:151)
 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
 at android.os.Handler.dispatchMessage(Handler.java:102)
 at android.os.Looper.loop(Looper.java:135)
 at android.app.ActivityThread.main(ActivityThread.java:5254)
 at java.lang.reflect.Method.invoke(Native Method)
 at java.lang.reflect.Method.invoke(Method.java:372)
 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
 Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class android.webkit.
WebView
 at android.view.LayoutInflater.createView(LayoutInflater.java:633)
 at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55)
 at android.view.LayoutInflater.onCreateView(LayoutInflater.java:682)
 at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:741)
 at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
 at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
 at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
 at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
 at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:555)
 at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:161)
 at test.webview.MainActivity.onCreate(MainActivity.java:15)
 at android.app.Activity.performCreate(Activity.java:5990)
 at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
 at android.app.ActivityThread.access$800(ActivityThread.java:151)
 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
 at android.os.Handler.dispatchMessage(Handler.java:102)
 at android.os.Looper.loop(Looper.java:135)
 at android.app.ActivityThread.main(ActivityThread.java:5254) 
 at java.lang.reflect.Method.invoke(Native Method)
 at java.lang.reflect.Method.invoke(Method.java:372)
 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
 Caused by: java.lang.reflect.InvocationTargetException
 at java.lang.reflect.Constructor.newInstance(Native Method)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
 at android.view.LayoutInflater.createView(LayoutInflater.java:607)
 at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55)
 at android.view.LayoutInflater.onCreateView(LayoutInflater.java:682)
 at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:741)
 at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
 at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
 at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
 at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
 at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:555)
 at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:161)
 at test.webview.MainActivity.onCreate(MainActivity.java:15)
 at android.app.Activity.performCreate(Activity.java:5990)
 at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
 at android.app.ActivityThread.access$800(ActivityThread.java:151)
 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
 at android.os.Handler.dispatchMessage(Handler.java:102)
 at android.os.Looper.loop(Looper.java:135)
 at android.app.ActivityThread.main(ActivityThread.java:5254)
 at java.lang.reflect.Method.invoke(Native Method)
 at java.lang.reflect.Method.invoke(Method.java:372)
 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
 Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x2040003
 at android.content.res.Resources.getText(Resources.java:299)
 at android.content.res.Resources.getString(Resources.java:385)
 at com.android.org.chromium.content.browser.ContentViewCore.setContainerView(ContentViewCore.java:684)
 at com.android.org.chromium.content.browser.ContentViewCore.initialize(ContentViewCore.java:608)
 at com.android.org.chromium.android_webview.AwContents.createAndInitializeContentViewCore(AwContents.java:
631)
 at com.android.org.chromium.android_webview.AwContents.setNewAwContents(AwContents.java:780)
 at com.android.org.chromium.android_webview.AwContents.<init>(AwContents.java:619)
 at com.android.org.chromium.android_webview.AwContents.<init>(AwContents.java:556)
 at com.android.webview.chromium.WebViewChromium.initForReal(WebViewChromium.java:311)
 at com.android.webview.chromium.WebViewChromium.access$100(WebViewChromium.java:96)
 at com.android.webview.chromium.WebViewChromium$1.run(WebViewChromium.java:263)
 at com.android.webview.chromium.WebViewChromium$WebViewChromiumRunQueue.drainQueue(WebViewChromium.java:
123)
 at com.android.webview.chromium.WebViewChromium$WebViewChromiumRunQueue$1.run(WebViewChromium.java:110)
 at com.android.org.chromium.base.ThreadUtils.runOnUiThread(ThreadUtils.java:144)
 at com.android.webview.chromium.WebViewChromium$WebViewChromiumRunQueue.addTask(WebViewChromium.java:107)
 at com.android.webview.chromium.WebViewChromium.init(WebViewChromium.java:260)
 at android.webkit.WebView.<init>(WebView.java:554)
 at android.webkit.WebView.<init>(WebView.java:489)
 at android.webkit.WebV

我本以为它会启动(也许看起来不是最好的，因为webview支持在使用旧的API时是不同的)，但它似乎因为通货膨胀异常而崩溃了？(除非我读错了)

编辑:我刚刚尝试使用1个WebView创建一个全新的应用程序，也很简单，但它也崩溃了。这是activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <WebView
        android:id="@+id/webView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</RelativeLayout>

这是MainActivity.java

package test.webview;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.webkit.WebView;

public class MainActivity extends AppCompatActivity {

    private WebView webView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        webView = (WebView) findViewById(R.id.webView);

        webView.loadUrl("https://google.com");
    }
}

如您所见，代码没有任何错误。那么，可能出了什么问题呢？(你也可以自己在棒棒糖上测试一下)

Answer 1

事实证明，要么是AVD附带的旧版本安卓系统Webview中的一些bug，要么是因为AppCompat build版本(1.1.0)中的一个bug。按照这个answer说的做，让我的应用程序再次正常工作。这对我来说很有效，因为我在1.1.0中并没有使用任何特殊的东西，所以在androidx.appcompat:appcompat:1.0.2中使用1.0.2就足够了

Answer 2

在MainActivity xml中，您已经声明了NoSuggestionsWebView类。

该错误解释了在您的MainActivity XML第17行中，NoSuggestionsWebView不能膨胀。

你必须检查NoSuggestionsWebView类，并检查你是否正在做一些与操作系统相关的事情或类似的事情。