找不到类Android支持设计小部件NavigationView

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问题描述

美好的一天，你能帮帮我吗.在模拟器上编译/运行代码时出现此错误.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'

Good day, can you help me out. I got this error when compiling/running my code on an emulator. This is the sample tutorial I used to make. I used min Target API - 15 and compile the latest 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:无法启动活动ComponentInfo {com.eccp.projects.ecosavers.ecosavers/com.eccp.projects.ecosavers.ecosavers.activities.MainActivity}:android.view.InflateException :二进制XML文件第29行:二进制XML文件第29行:错误膨胀了类android.support.design.widget.NavigationView 12-29 06:43:39.409 3448-3448/com.eccp.projects.ecosavers.ecosavers E/AndroidRuntime:at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)

AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.eccp.projects.ecosavers.ecosavers/com.eccp.projects.ecosavers.ecosavers.activities.MainActivity}: android.view.InflateException: Binary XML file line #29: Binary XML file line #29: Error inflating class android.support.design.widget.NavigationView12-29 06:43:39.409 3448-3448/com.eccp.projects.ecosavers.ecosavers E/AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)

E/AndroidRuntime:原因:android.view.InflateException:二进制XML文件第29行:二进制XML文件第29行:错误夸大了类android.support.design.widget.NavigationView

E/AndroidRuntime: Caused by: android.view.InflateException: Binary XML file line #29: Binary XML file line #29: Error inflating class 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>

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找不到类Android支持设计小部件NavigationView

问题描述

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