java - TabLayout 不可用，错误膨胀，导入的所有内容但不是 "visible"

标签 java android

我一直收到这个错误。我已经尝试了可以​​在 StackOverflow 上找到的解决方案，但没有任何效果。

这是错误:扩展类 android.support.design.widget.TabLayout 时出错

这是我在依赖项中使用的: 实现 'com.android.support:design:29.3.0'

这是 XML 的样子:

<android.support.design.widget.TabLayout
        android:id="@+id/sliding_tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabMode="fixed" />

我尝试创建一个 version-v21 文件夹并设置主题，但这不能将样式作为属性。按照这个:http://geeksmember.blogspot.com/2015/10/errorerror-inflating-class.html

我还尝试使用定制的主题更改 list 中的主题。

完整的 activity_main.xml 文件:

<?xml version="1.0" encoding="utf-8"?>

<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"
    tools:context="com.example.android.tourguide.MainActivity">


    <android.support.design.widget.TabLayout
        android:id="@+id/sliding_tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabMode="fixed" />


    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>

我在 MainActivity.java 的第 16 行也遇到错误: (设置内容 View )

package com.example.android.tourguide;

import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.ViewPager;
//import android.support.design.widget.TabLayout;

import android.os.Bundle;

import com.google.android.material.tabs.TabLayout;

public class MainActivity extends AppCompatActivity {

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

        // Find the view pager that will allow the user to swipe between fragments
        ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);

        // Create adapter to show the appropriate fragment for each page
        SimpleFragmentPagerAdapter adapter = new SimpleFragmentPagerAdapter(getSupportFragmentManager());

        // Set the adapter onto the view pager
        viewPager.setAdapter(adapter);

        // Give the TabLayout the ViewPager
        TabLayout tabLayout = (TabLayout) findViewById(R.id.sliding_tabs);
        tabLayout.setupWithViewPager(viewPager);
    }
}

这是整个 logcat:

2019-08-14 21:08:12.864 6000-6000/? I/droid.tourguid: Not late-enabling -Xcheck:jni (already on)
2019-08-14 21:08:12.891 6000-6000/? W/droid.tourguid: Unexpected CPU variant for X86 using defaults: x86
2019-08-14 21:08:13.344 6000-6000/com.example.android.tourguide W/droid.tourguid: JIT profile information will not be recorded: profile file does not exits.
2019-08-14 21:08:13.347 6000-6000/com.example.android.tourguide I/chatty: uid=10089(com.example.android.tourguide) identical 10 lines
2019-08-14 21:08:13.347 6000-6000/com.example.android.tourguide W/droid.tourguid: JIT profile information will not be recorded: profile file does not exits.
2019-08-14 21:08:13.431 6000-6000/com.example.android.tourguide I/InstantRun: starting instant run server: is main process
2019-08-14 21:08:13.659 6000-6000/com.example.android.tourguide W/droid.tourguid: Accessing hidden method Landroid/view/View;->computeFitSystemWindows(Landroid/graphics/Rect;Landroid/graphics/Rect;)Z (light greylist, reflection)
2019-08-14 21:08:13.659 6000-6000/com.example.android.tourguide W/droid.tourguid: Accessing hidden method Landroid/view/ViewGroup;->makeOptionalFitsSystemWindows()V (light greylist, reflection)
2019-08-14 21:08:13.672 6000-6000/com.example.android.tourguide D/AndroidRuntime: Shutting down VM
2019-08-14 21:08:13.680 6000-6000/com.example.android.tourguide E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.android.tourguide, PID: 6000
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.tourguide/com.example.android.tourguide.MainActivity}: android.view.InflateException: Binary XML file line #12: Binary XML file line #12: Error inflating class android.support.design.widget.TabLayout
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6669)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
     Caused by: android.view.InflateException: Binary XML file line #12: Binary XML file line #12: Error inflating class android.support.design.widget.TabLayout
     Caused by: android.view.InflateException: Binary XML file line #12: Error inflating class android.support.design.widget.TabLayout
     Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.design.widget.TabLayout" on path: DexPathList[[zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/base.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_resources_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/lib/x86, /system/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at android.view.LayoutInflater.createView(LayoutInflater.java:606)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:863)
        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
        at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
        at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
2019-08-14 21:08:13.685 6000-6000/com.example.android.tourguide E/AndroidRuntime:     at com.example.android.tourguide.MainActivity.onCreate(MainActivity.java:16)
        at android.app.Activity.performCreate(Activity.java:7136)
        at android.app.Activity.performCreate(Activity.java:7127)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6669)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
        Suppressed: java.io.IOException: No original dex files found for dex location /data/app/com.example.android.tourguide-Ok8HTD230dRMxKJwA7oooQ==/split_lib_resources_apk.apk
        at dalvik.system.DexFile.openDexFileNative(Native Method)
        at dalvik.system.DexFile.openDexFile(DexFile.java:354)
        at dalvik.system.DexFile.<init>(DexFile.java:101)
        at dalvik.system.DexFile.<init>(DexFile.java:75)
        at dalvik.system.DexPathList.loadDexFile(DexPathList.java:394)
        at dalvik.system.DexPathList.makeDexElements(DexPathList.java:354)
        at dalvik.system.DexPathList.<init>(DexPathList.java:164)
        at dalvik.system.BaseDexClassLoader.<init>(BaseDexClassLoader.java:74)
        at dalvik.system.BaseDexClassLoader.<init>(BaseDexClassLoader.java:65)
        at dalvik.system.PathClassLoader.<init>(PathClassLoader.java:64)
        at com.android.internal.os.ClassLoaderFactory.createClassLoader(ClassLoaderFactory.java:73)
        at com.android.internal.os.ClassLoaderFactory.createClassLoader(ClassLoaderFactory.java:88)
        at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:74)
        at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:40)
        at android.app.LoadedApk.createOrUpdateClassLoaderLocked(LoadedApk.java:727)
        at android.app.LoadedApk.getClassLoader(LoadedApk.java:810)
        at android.app.LoadedApk.getResources(LoadedApk.java:1032)
        at android.app.ContextImpl.createAppContext(ContextImpl.java:2345)
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5749)
        at android.app.ActivityThread.access$1100(ActivityThread.java:199)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1650)
                ... 6 more
2019-08-14 21:08:13.726 6000-6000/com.example.android.tourguide I/Process: Sending signal. PID: 6000 SIG: 9

如需更多信息，请询问。

最佳答案

您的 Layout 和 Activity 都应该使用匹配的 View 。在您的 Activity 中，您正在使用以下 androidX 库:

import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.ViewPager;
import com.google.android.material.tabs.TabLayout;

因此，您还需要在布局中使用相同的 View :

<?xml version="1.0" encoding="utf-8"?>
<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"
    tools:context="com.example.android.tourguide.MainActivity">


    <com.google.android.material.tabs.TabLayout
        android:id="@+id/sliding_tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabMode="fixed" />


    <androidx.viewpager.widget.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>

请注意，支持库没有版本 29。最后一个版本只有版本 28.0.0，参见 changelog .

另请参阅 Migrating to AndroidX

关于java - TabLayout 不可用，错误膨胀，导入的所有内容但不是 "visible"，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57499796/

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