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Android Studio（错误膨胀类片段）

分类: 技术问答 • 2022-07-05 17:53:32
问题描述：

我遵循了一些实现android工作室材质设计导航抽屉的教程，然后我安装了genymotion来测试其他API的应用程序。
我测试了API 16上的应用程序。
然后我得到了这个错误。Android Studio（错误膨胀类片段）

10-15 16:12:15.295 1411-1411/? E/AndroidRuntime: FATAL EXCEPTION: main 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.directioner.newjd/com.example.directioner.newjd.MainActivity}: android.view.InflateException: Binary XML file line #35: Error inflating class fragment 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.access$600(ActivityThread.java:130) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.os.Handler.dispatchMessage(Handler.java:99) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.os.Looper.loop(Looper.java:137) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.main(ActivityThread.java:4745) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at java.lang.reflect.Method.invokeNative(Native Method) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Method.java:511) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at dalvik.system.NativeStart.main(Native Method) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime: Caused by: android.view.InflateException: Binary XML file line #35: Error inflating class fragment 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.rInflate(LayoutInflater.java:746) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.inflate(LayoutInflater.java:489) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.inflate(LayoutInflater.java:352) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at com.example.directioner.newjd.MainActivity.onCreate(MainActivity.java:20) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.Activity.performCreate(Activity.java:5008) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.access$600(ActivityThread.java:130)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.os.Handler.dispatchMessage(Handler.java:99)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.os.Looper.loop(Looper.java:137)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.main(ActivityThread.java:4745)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at java.lang.reflect.Method.invokeNative(Native Method)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Method.java:511)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at dalvik.system.NativeStart.main(Native Method)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime: Caused by: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x1 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.content.res.TypedArray.getDimensionPixelSize(TypedArray.java:463) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.ViewGroup$MarginLayoutParams.<init>(ViewGroup.java:5606) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.widget.LinearLayout$LayoutParams.<init>(LinearLayout.java:1809) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:1721) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:58) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.rInflate(LayoutInflater.java:748) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.rInflate(LayoutInflater.java:749) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.inflate(LayoutInflater.java:489) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at com.example.directioner.newjd.NavigationDrawerFragment.onCreateView(NavigationDrawerFragment.java:58) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v4.app.Fragment.performCreateView(Fragment.java:1786) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:920) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1206) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2159) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:297) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v7.app.ActionBarActivity.onCreateView(ActionBarActivity.java:547) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:676) 
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.inflate(LayoutInflater.java:489)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.inflate(LayoutInflater.java:396)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.view.LayoutInflater.inflate(LayoutInflater.java:352)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at com.example.directioner.newjd.MainActivity.onCreate(MainActivity.java:20)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.Activity.performCreate(Activity.java:5008)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.access$600(ActivityThread.java:130)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.os.Handler.dispatchMessage(Handler.java:99)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.os.Looper.loop(Looper.java:137)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at android.app.ActivityThread.main(ActivityThread.java:4745)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at java.lang.reflect.Method.invokeNative(Native Method)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Method.java:511)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)  
10-15 16:12:15.295 1411-1411/? E/AndroidRuntime:  at dalvik.system.NativeStart.main(Native Method) 

这里是我的XML

<?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"> 

    <FrameLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:fitsSystemWindows="true"> 


     <RelativeLayout 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@color/white" 
      tools:context="com.example.directioner.newjd.MainActivity"> 

      <include 
       android:id="@+id/app_bar" 
       layout="@layout/app_bar" /> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_below="@+id/app_bar" 
       android:textSize="35dp" 
       android:text="MAP HERE" /> 

     </RelativeLayout> 
    </FrameLayout> 

<fragment 
    android:id="@+id/fragment_navigation_drawer" 
    android:name="com.example.directioner.newjd.NavigationDrawerFragment" 
    android:layout_width="@dimen/nav_dr" 
    android:layout_height="match_parent" 
    android:layout_gravity="start" 
    android:fitsSystemWindows="false" 
    app:layout="@layout/fragment_navigation_drawer" 
    tools:layout="@layout/fragment_navigation_drawer"> 

</fragment> 


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

我的MainActivity。

import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.support.v4.widget.DrawerLayout; 
import android.support.v7.app.ActionBarActivity; 
import android.support.v7.widget.Toolbar; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.support.v4.app.Fragment; 


public class MainActivity extends ActionBarActivity { 

    private Toolbar toolbar; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     toolbar =(Toolbar) findViewById(R.id.app_bar); 
     setSupportActionBar(toolbar); 

     getSupportActionBar().setDisplayShowHomeEnabled(true); 



     NavigationDrawerFragment drawerFragment = (NavigationDrawerFragment) 
       getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer); 
     drawerFragment.setUp(R.id.fragment_navigation_drawer,(DrawerLayout)findViewById(R.id.drawer_layout),toolbar); 
    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.menu_main, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 

     //noinspection SimplifiableIfStatement 
     return super.onOptionsItemSelected(item); 
    } 

}

并为我的NavigationDrawerFragment。

import android.content.Context; 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.os.Bundle; 

import android.support.v4.widget.DrawerLayout; 
import android.support.v7.app.ActionBarDrawerToggle; 
import android.support.v7.widget.LinearLayoutManager; 
import android.support.v7.widget.RecyclerView; 
import android.support.v7.widget.Toolbar; 
import android.util.Log; 
import android.view.GestureDetector; 
import android.view.LayoutInflater; 
import android.view.MotionEvent; 
import android.view.View; 
import android.view.ViewGroup; 
import android.support.v4.app.Fragment; 
import android.widget.Toast; 
import java.util.ArrayList; 
import java.util.List; 

/** 
* A simple {@link Fragment} subclass. 
*/ 
public class NavigationDrawerFragment extends Fragment { 


    private RecyclerView recyclerView; 
    public static final String PREF_FILE_NAME = "testpref"; 
    public static final String KEY_USER_LEARNED_DRAWER = "user_learned_drawer"; 
    private ActionBarDrawerToggle mDrawerToggle; 
    private DrawerLayout mDrawerLayout; 
    private boolean mUserLearnedDrawer; 
    private boolean mFromSavedInstanceState; 
    private View containerView; 
    private VivzAdapter adapter; 

    public NavigationDrawerFragment() { 

    } 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     mUserLearnedDrawer = Boolean.valueOf(readFromPreferences(getActivity(), KEY_USER_LEARNED_DRAWER, "false")); 
     if (savedInstanceState != null) { 
      mFromSavedInstanceState = true; 
     } 
    } 


    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     View layout = inflater.inflate(R.layout.fragment_navigation_drawer, container, false); 
     recyclerView = (RecyclerView) layout.findViewById(R.id.drawerList); 
     adapter=new VivzAdapter(getActivity(),getData()); 
     recyclerView.setAdapter(adapter); 
     recyclerView.setLayoutManager(new LinearLayoutManager(getActivity())); 
     recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerView, new ClickListener() { 
      @Override 
      public void onClick(View view, int position) { 
       //Toast.makeText(getActivity(),"On Click "+position,Toast.LENGTH_SHORT).show(); 
       if(position==1){ 
        startActivity(new Intent(getActivity(),SubActivity.class)); 

       } 
      } 

      @Override 
      public void onLongClick(View view, int position) { 
       //Toast.makeText(getActivity(),"On Long Click "+position,Toast.LENGTH_SHORT).show(); 
      } 
     })); 
     return layout; 
    } 


    public static List<Information> getData() { 
     List<Information> data = new ArrayList<>(); 
     int[] icons = {R.drawable.ic_home,R.drawable.ic_search_black,R.drawable.ic_favorite, R.drawable.ic_route, R.drawable.ic_place, R.drawable.ic_settings}; 
     String[] titles = {"Home","Search Location","Favorites", "Route", "Recent Location","Settings"}; 
     for (int i = 0; i < titles.length && i < icons.length; i++) { 
      Information current = new Information(); 
      current.iconId=icons[i]; 
      current.title=titles[i]; 
      data.add(current); 
     } 
     return data; 
    } 

    public void setUp(int fragmentId, DrawerLayout drawerLayout, Toolbar toolbar) { 
     containerView = getActivity().findViewById(fragmentId); 
     mDrawerLayout = drawerLayout; 
     mDrawerToggle = new ActionBarDrawerToggle(getActivity(), drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) { 

      @Override 
      public void onDrawerOpened(View drawerView) { 
       super.onDrawerOpened(drawerView); 
       if (!mUserLearnedDrawer) { 
        mUserLearnedDrawer = true; 
        savedToPreferences(getActivity(), KEY_USER_LEARNED_DRAWER, mUserLearnedDrawer + ""); 
       } 
       getActivity().invalidateOptionsMenu(); 
      } 

      @Override 
      public void onDrawerClosed(View drawerView) { 
       super.onDrawerClosed(drawerView); 
       getActivity().invalidateOptionsMenu(); 
      } 

     }; 
     if (!mUserLearnedDrawer && !mFromSavedInstanceState) { 
      mDrawerLayout.openDrawer(containerView); 
     } 

     mDrawerLayout.setDrawerListener(mDrawerToggle); 
     mDrawerLayout.post(new Runnable() { 
      @Override 
      public void run() { 
       mDrawerToggle.syncState(); 
      } 
     }); 

    } 

    public static void savedToPreferences(Context context, String preferenceName, String preferenceValue) { 
     SharedPreferences sharedPreferences = context.getSharedPreferences(PREF_FILE_NAME, context.MODE_PRIVATE); 
     SharedPreferences.Editor editor = sharedPreferences.edit(); 
     editor.putString(preferenceName, preferenceValue); 
     editor.apply(); 

    } 

    public static String readFromPreferences(Context context, String preferenceName, String defaultValue) { 
     SharedPreferences sharedPreferences = context.getSharedPreferences(PREF_FILE_NAME, context.MODE_PRIVATE); 
     return sharedPreferences.getString(preferenceName, defaultValue); 
    } 


    class RecyclerTouchListener implements RecyclerView.OnItemTouchListener{ 

     private GestureDetector gestureDetector; 
     private ClickListener clickListener; 
     public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener){ 
       Log.d("CHARLES: ","Constructor"); 
      this.clickListener=clickListener; 
      gestureDetector=new GestureDetector(context,new GestureDetector.SimpleOnGestureListener(){ 
       @Override 
       public boolean onSingleTapUp(MotionEvent e) { 
        Log.d("CHARLES: ","onSingleTap"+e); 
        return true; 
       } 

       @Override 
       public void onLongPress(MotionEvent e) { 
        //super.onLongPress(e); 
        View child = recyclerView.findChildViewUnder(e.getX(), e.getY()); 
        if(child!=null && clickListener!=null){ 
         clickListener.onLongClick(child,recyclerView.getChildPosition(child)); 
        } 
        Log.d("CHARLES: ","onLongPress"+e); 

       } 
      }); 

     } 

     @Override 
     public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) { 
      View child = rv.findChildViewUnder(e.getX(), e.getY()); 
      if(child!=null && clickListener!=null && gestureDetector.onTouchEvent(e)){ 
        clickListener.onClick(child,rv.getChildPosition(child)); 
      } 
      Log.d("CHARLES: ","OnInterceptTouchEvent"+gestureDetector.onTouchEvent(e)+" "+e); 
      return false; 
     } 

     @Override 
     public void onTouchEvent(RecyclerView rv, MotionEvent e) { 
      Log.d("CHARLES: ","OnTouchEvent"); 
     } 
    } 

    public static interface ClickListener{ 
     public void onClick(View view,int position); 
     public void onLongClick(View view,int position); 
    } 
}

我Fragment_navigation_drawer.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:background="@color/white" 
    tools:context="com.example.directioner.newjd.NavigationDrawerFragment"> 

    <LinearLayout 
     android:id="@+id/containerDrawerImage" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:background="#00BCD4" 
     android:orientation="vertical"> 



     <ImageView 
      android:layout_width="280dp" 
      android:layout_height="100dp" 
      android:layout_marginTop="@dimen/drawer_margin_top" 
      android:background="#00BCD4" 
      /> 


     <TextView 
      android:layout_width="wrap_content" 
      android:layout_height="48dp" 
      android:textColor="#FFF" 
      android:textSize="15dp" 
      android:layout_marginLeft="16dp" 
      android:layout_marginRight="16dp" 
      android:text="Charles Ivan Galvez"/> 
    </LinearLayout> 

    <android.support.v7.widget.RecyclerView 
     android:layout_below="@+id/containerDrawerImage" 
     android:id="@+id/drawerList" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content"> 

    </android.support.v7.widget.RecyclerView> 
</RelativeLayout>

谢谢！

+0

你可以发布fragment_navigation_drawer.xml的布局吗？看来问题可能在该文件中。 – phxhawke

+0

完成添加fragment_navigation_drawer。谢谢。 –

+0

你有什么设置@ dimen/drawer_margin_top？ – phxhawke

答

在异常，线下意味着有一个转换的问题：

10-15 16:12:15.295 1411-1411/? E/AndroidRuntime: Caused by: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x1

你的片段布局宽度已经android:layout_width="@dimen/nav_dr"所以我建议你检查已经nav_dr定义什么样的价值。

+0

这是我的nav_dr 280dp。 而不是android：layout_width =“@ dimen/nav_dr”我改变它为android：layout_width =“280dp”但仍然相同 –

+0

@CharlesGalvez，使用'wrap_content'或'match_parent'开始调试更简单，然后使用固定值。此外，如果您支持多种解决方案，请确保您使用的是基准dimes.xml或values.xml中的“nav_dr”或其他任何已命名的变量。 另外请确保您所定位的任何材质设计主题都具有适用于API 16的替代主题。 – keno

+0

谢谢。你的答案都是正确的。感谢你们！ –

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