Android - 当我添加子菜单时，应用程序崩溃

时间：2017-04-20 10:39:16

标签： android

我尝试在产品上添加子菜单，应用程序在启动时崩溃。问题来自创建的子菜单。我不明白为什么。

NavigationMenu.xml 

   <?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:id="@+id/nav_home"
        android:title="Home" />

        <item android:title="Products"
            android:id="@+id/nav_products">
            <menu>

                <item android:id="@+id/nav_tubeBendingMachines"
                    android:title="Tub" />

                <item android:id="@+id/nav_sectionBendingRolls"
                    android:title="Sect" />

            </menu>
         </item>


    <item android:id="@+id/nav_tube_data"
        android:title="Tube Data" />

    <item android:id="@+id/nav_tool_setup"
        android:title="Tool Setup" />

    <item android:id="@+id/nav_mandrel"
        android:title="Mandrel" />

    <item android:id="@+id/nav_archive"
        android:title="Archive" />

    <item android:id="@+id/nav_tool_notes"
        android:title="Tool Notes" />

    <item android:id="@+id/nav_converter"
        android:title="Converter" />

    <item android:id="@+id/nav_bend_guide"
        android:title="Bend Guide" />

    <item android:id="@+id/nav_contact"
        android:title="Contact Us" />

    <item android:id="@+id/nav_settings"
        android:title="Settings"
        android:icon="@mipmap/ic_settings_black_24dp"/>


    </menu>

主要

public class MainActivity extends AppCompatActivity {

//Side menu
private DrawerLayout mDrawerLayout;
//button side menu
private ActionBarDrawerToggle mToggle;

//toolbar
private Toolbar mToolbar;

//Fragments
FragmentTransaction fragmentTransaction;

NavigationView navigationView;



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

    mToolbar = (Toolbar) findViewById(R.id.nav_action);
    setSupportActionBar(mToolbar);


    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
    mToggle = new ActionBarDrawerToggle(this,mDrawerLayout, R.string.open,R.string.close);

    mDrawerLayout.addDrawerListener(mToggle);
    mToggle.syncState();

    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    //fragments transaction
    fragmentTransaction = getSupportFragmentManager().beginTransaction();
    fragmentTransaction.add(R.id.main_container,new HomeFragment());
    fragmentTransaction.commit();
    getSupportActionBar().setTitle("Home");

    //select which fragment to show based on item id
    navigationView = (NavigationView) findViewById(R.id.nav_view);
    navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
            switch (item.getItemId())
            {
                case R.id.nav_home:
                    fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.main_container,new HomeFragment());
                    fragmentTransaction.commit();
                    getSupportActionBar().setTitle("Home");
                    item.setChecked(true);
                    mDrawerLayout.closeDrawers();
                    break;

                case R.id.nav_settings:
                    fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.main_container,new SettingsFragment());
                    fragmentTransaction.commit();
                    getSupportActionBar().setTitle("Settings");
                    item.setChecked(true);
                    mDrawerLayout.closeDrawers();
                    break;

                case R.id.nav_contact:
                    fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.main_container,new ContactUsFragment());
                    fragmentTransaction.commit();
                    getSupportActionBar().setTitle("Contact Us");
                    item.setChecked(true);
                    mDrawerLayout.closeDrawers();
                    break;

                case R.id.nav_tube_data:
                    fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.main_container,new TubeDataFragment());
                    fragmentTransaction.commit();
                    getSupportActionBar().setTitle("Tube Data");
                    item.setChecked(true);
                    mDrawerLayout.closeDrawers();
                    break;

                case R.id.nav_archive:
                    fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.main_container,new ArchiveFragment());
                    fragmentTransaction.commit();
                    getSupportActionBar().setTitle("Archive");
                    item.setChecked(true);
                    mDrawerLayout.closeDrawers();
                    break;

                case R.id.nav_bend_guide:
                    fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.main_container,new BendGuideFragment());
                    fragmentTransaction.commit();
                    getSupportActionBar().setTitle("Bend Guide");
                    item.setChecked(true);
                    mDrawerLayout.closeDrawers();
                    break;

                case R.id.nav_mandrel:
                    fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.main_container,new MandrelFragment());
                    fragmentTransaction.commit();
                    getSupportActionBar().setTitle("Mandrel");
                    item.setChecked(true);
                    mDrawerLayout.closeDrawers();
                    break;

                case R.id.nav_tool_setup:
                    fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.main_container,new ToolSetupFragment());
                    fragmentTransaction.commit();
                    getSupportActionBar().setTitle("Tool Setup");
                    item.setChecked(true);
                    mDrawerLayout.closeDrawers();
                    break;

                case R.id.nav_products:
                    fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.main_container,new ProductsFragment());
                    fragmentTransaction.commit();
                    getSupportActionBar().setTitle("Products");
                    item.setChecked(true);
                    mDrawerLayout.closeDrawers();
                    break;





            }
            return true;
        }
    });

    }
//toggle para o menu
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if(mToggle.onOptionsItemSelected(item))
        {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

CRASH LOGS：

04-20 10:40:45.923 6040-6040/com.example.tiagosilva.amob_android E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.tiagosilva.amob_android, PID: 6040
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.tiagosilva.amob_android/com.example.tiagosilva.amob_android.MainActivity}: android.view.InflateException: Binary XML file line #38: Binary XML file line #38: Error inflating class android.support.design.widget.NavigationView
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2665)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)
    at android.app.ActivityThread.-wrap12(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6119)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
 Caused by: android.view.InflateException: Binary XML file line #38: Binary XML file line #38: Error inflating class android.support.design.widget.NavigationView
 Caused by: android.view.InflateException: Binary XML file line #38: Error inflating class android.support.design.widget.NavigationView
 Caused by: java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Constructor.newInstance0(Native Method)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:430)
    at android.view.LayoutInflater.createView(LayoutInflater.java:645)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:787)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:727)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:858)
    at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:821)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:518)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:426)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:377)
    at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:292)
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
    at com.example.tiagosilva.amob_android.MainActivity.onCreate(MainActivity.java:34)
    at android.app.Activity.performCreate(Activity.java:6679)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2618)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)
    at android.app.ActivityThread.-wrap12(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6119)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
 Caused by: java.lang.ClassCastException: android.support.design.internal.NavigationMenuPresenter$NavigationMenuSeparatorItem cannot be cast to android.support.design.internal.NavigationMenuPresenter$NavigationMenuTextItem
    at android.support.design.internal.NavigationMenuPresenter$NavigationMenuAdapter.appendTransparentIconIfMissing(NavigationMenuPresenter.java:540)
    at android.support.design.internal.NavigationMenuPresenter$NavigationMenuAdapter.prepareMenuItems(NavigationMenuPresenter.java:527)
    at android.support.design.internal.NavigationMenuPresenter$NavigationMenuAdapter.update(NavigationMenuPresenter.java:460)
    at android.support.design.internal.NavigationMenuPresenter.updateMenuView(NavigationMenuPresenter.java:117)
    at android.support.design.widget.NavigationView.inflateMenu(NavigationView.java:252)
04-20 10:40:45.923 6040-6040/com.example.tiagosilva.amob_android E/AndroidRuntime:     
    at android.support.design.widget.NavigationView.<init>(NavigationView.java:174)
    at android.support.design.widget.NavigationView.<init>(NavigationView.java:100)
        ... 25 more

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1 个答案:

答案 0 :(得分：2)

  

引起：android.view.InflateException: Binary XML file line #38:   Binary XML file line #38: Error inflating clasŠ   android.support.design.widget.NavigationView

     

引起：   android.view.InflateException: Binary XML file line #38: Error   inflating class android.support.design.widget.NavigationView

<强>原因：

问题出在NavigationMenu.xml。项nav_settings会导致InflateException。之所以发生这种情况，是因为item icon已items，但上述icons没有grouped且您没有InflateException这些。

<强> SOLUTION：

要解决此问题nav_tube_data，请将菜单项nav_contact添加到group id，同时您必须group <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/nav_home" android:title="Home" /> <item android:title="Products" android:id="@+id/nav_products"> <menu> <item android:id="@+id/nav_tubeBendingMachines" android:title="Tub" /> <item android:id="@+id/nav_sectionBendingRolls" android:title="Sect" /> </menu> </item> <group android:checkableBehavior="none" android:id="@+id/group_one"> <item android:id="@+id/nav_tube_data" android:title="Tube Data" /> <item android:id="@+id/nav_tool_setup" android:title="Tool Setup" /> <item android:id="@+id/nav_mandrel" android:title="Mandrel" /> <item android:id="@+id/nav_archive" android:title="Archive" /> <item android:id="@+id/nav_tool_notes" android:title="Tool Notes" /> <item android:id="@+id/nav_converter" android:title="Converter" /> <item android:id="@+id/nav_bend_guide" android:title="Bend Guide" /> <item android:id="@+id/nav_contact" android:title="Contact Us" /> </group> <item android:id="@+id/nav_settings" android:title="Settings" android:icon="@drawable/ic_settings_black_24dp"/> </menu> }。

以下是正在使用的XML代码： 

icons

<强>输出：

enter image description here

一条建议，不要将您的资源mipmap放在mipmap文件夹中。 launcher仅适用于resource图标。对于其他drawable图标，您应使用Products文件夹。

<强>更新

  

我想点击Products，然后转到显示所有内容的页面   与clickable相关的项目。没有办法制作产品 .................. ............................. <group android:checkableBehavior="none" android:id="@+id/group_two"> <item android:title="Products" android:id="@+id/nav_products" /> <item android:id="@+id/nav_tubeBendingMachines" android:title="Tub" /> <item android:id="@+id/nav_sectionBendingRolls" android:title="Sect" /> </group> ................ .......................   像Home等其他项目......？

试试这个： 

interface IReadableVar
{
    object GetValue();
}

interface IWritableVar
{
    void SetValue(object value);
}

interface IReadableWritableVar : IReadableVar, IWritableVar
{

}

希望这会有所帮助〜

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