android - 二进制充气机 :Error inflating class android. support.design.widget.NavigationView

Question

我按照支持设计库中的新组件 NavigationView 的教程进行操作，但无法通过此错误消息

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.encore/com.encore.NavViewActivity}: android.view.InflateException: Binary XML file line #27: Error inflating class android.support.design.widget.NavigationView

<style name="AppBaseTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
        -->
        <item name="android:colorPrimary">@color/PrimaryColor</item>
        <item name="android:colorPrimaryDark">@color/PrimaryDarkColor</item>
        <item name="windowActionModeOverlay">true</item>
        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
        <item name="android:statusBarColor">@android:color/transparent</item>
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">

        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
    </style>

布局文件

<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/lib/com.encore.NavViewActivity"
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/toolbar"
        layout="@layout/tool_bar"
    />
    <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/nav_header"
    app:menu="@menu/drawer"
    />

Java 文件

import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.support.design.widget.NavigationView;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SubMenu;
import android.view.View;
import android.widget.Toast;

public class NavViewActivity extends AppCompatActivity {

    //Defining Variables
    private Toolbar toolbar;
    private NavigationView navigationView;
    private DrawerLayout drawerLayout;

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

        // Initializing Toolbar and setting it as the actionbar
        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        //Initializing NavigationView
        navigationView = (NavigationView) findViewById(R.id.navigation_view);

        //Setting Navigation View Item Selected Listener to handle the item click of the navigation menu
        navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {

            // This method will trigger on item Click of navigation menu
            @Override
            public boolean onNavigationItemSelected(MenuItem menuItem) {


                //Checking if the item is in checked state or not, if not make it in checked state
                if(menuItem.isChecked()) menuItem.setChecked(false);
                else menuItem.setChecked(true);

                //Closing drawer on item click
                drawerLayout.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.inbox:
                        Toast.makeText(getApplicationContext(),"Inbox Selected",Toast.LENGTH_SHORT).show();
                        ContentFragment fragment = new ContentFragment();
                        android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
                        fragmentTransaction.replace(R.id.frame,fragment);
                        fragmentTransaction.commit();
                        return true;

                    // For rest of the options we just show a toast on click

                    case R.id.starred:
                        Toast.makeText(getApplicationContext(),"Stared Selected",Toast.LENGTH_SHORT).show();
                        return true;
                    case R.id.sent_mail:
                        Toast.makeText(getApplicationContext(),"Send Selected",Toast.LENGTH_SHORT).show();
                        return true;
                    case R.id.drafts:
                        Toast.makeText(getApplicationContext(),"Drafts Selected",Toast.LENGTH_SHORT).show();
                        return true;
                    case R.id.allmail:
                        Toast.makeText(getApplicationContext(),"All Mail Selected",Toast.LENGTH_SHORT).show();
                        return true;
                    case R.id.trash:
                        Toast.makeText(getApplicationContext(),"Trash 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
        drawerLayout = (DrawerLayout) findViewById(R.id.drawer);
        ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.openDrawer, R.string.closeDrawer){

            @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
        drawerLayout.setDrawerListener(actionBarDrawerToggle);

        //calling sync state is necessay or else your hamburger icon wont show up
        actionBarDrawerToggle.syncState();
    }
}

Answer 1

我也遇到同样的问题，正好报错，后来发现错在这里:menu->item-> android:icon="@drawable/ic_menu_camera" ，这个ic_menu_camera header 有 vector仅在 v21 或更高版本中使用，因此在系统 5.0 或更低版本中使用会遇到问题，您可以在值文件夹中复制以下代码并命名为“drawables”。代码:<resources xmlns:android="http://schemas.android.com/apk/res/android"> <item name="ic_menu_camera" type="drawable">@android:drawable/ic_menu_camera</item> <item name="ic_menu_gallery" type="drawable">@android:drawable/ic_menu_gallery</item> <item name="ic_menu_slideshow" type="drawable">@android:drawable/ic_menu_slideshow</item> <item name="ic_menu_manage" type="drawable">@android:drawable/ic_menu_manage</item> <item name="ic_menu_share" type="drawable">@android:drawable/ic_menu_share</item> <item name="ic_menu_send" type="drawable">@android:drawable/ic_menu_send</item> </resources>