Android "Unable to start activity" 仅在 KitKat 上出错？

Question

我收到一个错误，出于某种原因，只有当我通过 KitKat 运行我的 Android 应用程序时才会出现，KitKat 之上的所有其他软件都可以正常工作。这是错误：

0:40.895 3004-3004/<COM DOT IS HERE> E/AndroidRuntime: FATAL EXCEPTION: main
  Process: com.company.apptest, PID: 3004
  java.lang.RuntimeException: Unable to start activity ComponentInfo{com.company.apptest/com.company.apptest.MainActivity}: android.view.InflateException: Binary XML file line #16: Error inflating class android.support.design.widget.NavigationView
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
      at android.app.ActivityThread.access0(ActivityThread.java:135)
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
      at android.os.Handler.dispatchMessage(Handler.java:102)
      at android.os.Looper.loop(Looper.java:136)
      at android.app.ActivityThread.main(ActivityThread.java:5017)
      at java.lang.reflect.Method.invokeNative(Native Method)
      at java.lang.reflect.Method.invoke(Method.java:515)
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
      at dalvik.system.NativeStart.main(Native Method)
   Caused by: android.view.InflateException: Binary XML file line #16: Error inflating class android.support.design.widget.NavigationView
      at android.view.LayoutInflater.createView(LayoutInflater.java:621)
      at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697)
      at android.view.LayoutInflater.rInflate(LayoutInflater.java:756)
      at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
      at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
      at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
      at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)
      at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
      at com.company.apptest.MainActivity.onCreate(MainActivity.java:28)
      at android.app.Activity.performCreate(Activity.java:5231)
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
      at android.app.ActivityThread.access0(ActivityThread.java:135) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:136) 
      at android.app.ActivityThread.main(ActivityThread.java:5017) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:515) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
      at dalvik.system.NativeStart.main(Native Method) 
   Caused by: java.lang.reflect.InvocationTargetException
      at java.lang.reflect.Constructor.constructNative(Native Method)
      at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
      at android.view.LayoutInflater.createView(LayoutInflater.java:595)
      at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697) 
      at android.view.LayoutInflater.rInflate(LayoutInflater.java:756) 
      at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
      at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
      at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
      at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280) 
      at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
      at com.company.apptest.MainActivity.onCreate(MainActivity.java:28) 
      at android.app.Activity.performCreate(Activity.java:5231) 
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
      at android.app.ActivityThread.access0(ActivityThread.java:135) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:136) 
      at android.app.ActivityThread.main(ActivityThread.java:5017) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:515) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
      at dalvik.system.NativeStart.main(Native Method) 
   Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f02004b
      at android.content.res.Resources.getValue(Resources.java:1123)
      at android.support.v7.widget.AppCompatDrawableManager.loadDrawableFromDelegates(AppCompatDrawableManager.java:321)
      at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:197)
      at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:192)
      at android.support.v7.view.menu.MenuItemImpl.getIcon(MenuItemImpl.java:421)
      at android.support.design.internal.NavigationMenuPresenter$NavigationMenuAdapter.prepareMenuItems(NavigationMenuPresenter.java:495)
      at android.support.design.internal.NavigationMenuPresenter$NavigationMenuAdapter.update(NavigationMenuPresenter.java:436)
      at android.support.design.internal.NavigationMenuPresenter.updateMenuView(NavigationMenuPresenter.java:112)
      at android.support.design.widget.NavigationView.inflateMenu(NavigationView.java:245)
      at android.support.design.widget.NavigationView.<init>(NavigationView.java:169)
      at android.support.design.widget.NavigationView.<init>(NavigationView.java:95)
      at java.lang.reflect.Constructor.constructNative(Native Method) 
      at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
      at android.view.LayoutInflater.createView(LayoutInflater.java:595) 
      at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697) 
      at android.view.LayoutInflater.rInflate(LayoutInflater.java:756) 
      at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
      at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
      at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
      at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280) 
      at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
      at com.company.apptest.MainActivity.onCreate(MainActivity.java:28) 
      at android.app.Activity.performCreate(Activity.java:5231) 
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
      at android.app.ActivityThread.access0(ActivityThread.java:135) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:136) 
      at android.app.ActivityThread.main(ActivityThread.java:5017) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:515) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
      at dalvik.system.NativeStart.main(Native Method)

这是 activity_main 文件：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout      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:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">

<include
    layout="@layout/app_bar_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<android.support.design.widget.NavigationView
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:fitsSystemWindows="true"
    app:headerLayout="@layout/nav_header_main"
    app:menu="@menu/activity_main_drawer" />

</android.support.v4.widget.DrawerLayout>

这是 MainActivity.java 文件的第 28 行：

    setContentView(R.layout.activity_main);

我的 activity_main.xml 在 res/layout 文件夹中

Answer 1

你在 main activity 中有一个导航视图...转到第 16 行中你的 main activity 的布局文件你有一个资源可能是一个矢量或者你在一个 drawable 中有它文件夹... 您可以在 Android 5(api 21) 及以上

中定义矢量可绘制对象

为了测试这个答案，请尝试从您的布局中删除该资源，然后运行

检查您的 nav_header_main 布局资源和 menu/activity_main_drawer 资源

在其中一些文件中，您拥有的资源可以是矢量或...

例如，在您的菜单文件中，您有这样的项目：

<item
            android:id="@+id/nav_contact_uni"
            android:icon="@drawable/ic_menu_gallery"
            android:title="your-title" />

检查 ic_menu_gallery 可绘制文件

如果您的图标可绘制文件是矢量文件，您可以在主文件中添加这行 activity:

public class MainActivity extends AppCompatActivity {
    static {
        AppCompatDelegate.setCompatVectorFromResourcesEnabled(true);
    }

    ...
}

或者您可以在 build.gradle 中添加：

compile 'com.android.support:support-vector-drawable:24.2.0'

Answer 2

请检查 gradle 文件中您的 appcompat 库和设计支持库的版本是否相同。举个例子：

compile 'com.android.support:appcompat-v7:23.1.1' 
compile 'com.android.support:design:23.1.1'

使用最新的 version.Hope 它有帮助。

谢谢

Android "Unable to start activity" 仅在 KitKat 上出错？

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