你好，你能帮帮我吗？在模拟器上编译/运行我的代码时出现此错误。这是我以前制作的示例教程。我使用了 min Target API - 15 并编译了最新的 gradle 'com.android.support:design:23.0.0'

http://www.android4devs.com/2015/06/navigation-view-material-design-support.html

代码错误:

AndroidRuntime:java.lang.RuntimeException:无法启动 Activity : 二进制 XML 文件第 29 行:二进制 XML 文件第 29 行:错误膨胀类 android.support.design.widget.NavigationView 12-29 06:43:39.409 3448-3448/com.eccp.projects.ecasavers.ecasavers E/AndroidRuntime:在 android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)

E/AndroidRuntime: Caused by: android.view.InflateException: Binary XML file line #29: Binary XML file line #29: 错误膨胀类 android.support.design.widget.NavigationView

这是我的代码:MainActivity.java

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

    //SET my own toolbar
    toolbar = (Toolbar) findViewById(R.id.tool_bar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayShowHomeEnabled(true);
    getSupportActionBar().setHomeButtonEnabled(true);

    mNavigationView = (NavigationView) findViewById(R.id.navigation_view);

    mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {

        @Override
        public boolean onNavigationItemSelected(MenuItem menuItem) {
            if (menuItem.isChecked()) menuItem.setChecked(false);
            else menuItem.setChecked(true);

            //Closing drawer on item click
            mDrawerlayout.closeDrawers();

            //Check to see which item was being clicked and perform appropriate action
            switch (menuItem.getItemId()) {


                //Replacing the main content with ContentFragment Which is our Inbox View;
                case R.id.events:
                    Toast.makeText(getApplicationContext(), "Inbox Selected", Toast.LENGTH_SHORT).show();
                    Eco_events fragment = new Eco_events();
                    android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.frame, fragment);
                    fragmentTransaction.commit();
                    return true;

                //  show a toast on click

                case R.id.activities:
                    Toast.makeText(getApplicationContext(), "Send Selected", Toast.LENGTH_SHORT).show();
                    return true;
                case R.id.spam:
                    Toast.makeText(getApplicationContext(), "Spam Selected", Toast.LENGTH_SHORT).show();
                    return true;
                default:
                    Toast.makeText(getApplicationContext(), "Somethings Wrong", Toast.LENGTH_SHORT).show();
                    return true;

            }
        }
    });

    // Initializing Drawer Layout and ActionBarToggle
    mDrawerlayout = (DrawerLayout) findViewById(R.id.drawer);
    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerlayout, toolbar, R.string.drawerOpened, R.string.drawerOpened) {

        @Override
        public void onDrawerClosed(View drawerView) {
            // Code here will be triggered once the drawer closes as we dont want anything to happen so we leave this blank
            super.onDrawerClosed(drawerView);
        }

        @Override
        public void onDrawerOpened(View drawerView) {
            // Code here will be triggered once the drawer open as we dont want anything to happen so we leave this blank
            super.onDrawerOpened(drawerView);
        }
    };

    //Setting the actionbarToggle to drawer layout
    mDrawerlayout.setDrawerListener(mDrawerToggle);

    //calling sync state is
    mDrawerToggle.syncState();


}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    return super.onOptionsItemSelected(item);
}

XML:activity_main.xml

<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">

<LinearLayout
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:orientation="vertical"
    >
    <include
        android:id="@+id/tool_bar"
        layout="@layout/toolbar"
        />
    <FrameLayout
        android:id="@+id/frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    </FrameLayout>
</LinearLayout>
<android.support.design.widget.NavigationView
    android:id="@+id/navigation_view"
    android:layout_height="match_parent"
    android:layout_width="wrap_content"
    android:layout_gravity="start"
    app:headerLayout="@layout/header"
    app:menu="@menu/drawer"
    /> </android.support.v4.widget.DrawerLayout>

最佳答案

按照以下步骤操作:

1. 右键单击您的项目->打开模块设置。
2. 然后打开“依赖项”选项卡。
3. 点击 + 符号，然后选择 Library Dependency。您将看到一个名为 Choose Library Dependency 的弹出窗口。
4. 在那里输入“com.android.support”。然后点击搜索图标。

1. 现在选择设计库。然后点击确定。

关于java - 未找到类 Android 支持设计 Widget NavigationView，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34506163/