java.lang.NoSuchMethodException：<init> [类android.view.View] FirebaseRecyclerAdapter

我试图让一个示例应用程序使用FirebaseRecyclerAdapter但不断收到错误java.lang.RuntimeException: java.lang.NoSuchMethodException: <init> [class android.view.View]曾尝试一切，但似乎没有任何工作java.lang.NoSuchMethodException：<init> [类android.view.View] FirebaseRecyclerAdapter

错误：

E/AndroidRuntime: FATAL EXCEPTION: main 
        Process: com.example.visan.newappfireui, PID: 26711 
        java.lang.RuntimeException: java.lang.NoSuchMethodException: <init> [class android.view.View] 
         at com.firebase.ui.database.FirebaseRecyclerAdapter.onCreateViewHolder(FirebaseRecyclerAdapter.java:172) 
         at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6078) 
         at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5248) 
         at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5158) 
         at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2061) 
         at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1445) 
         at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1408) 
         at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:580) 
         at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3379) 
         at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3188) 
         at android.support.v7.widget.RecyclerView.consumePendingUpdateOperations(RecyclerView.java:1595) 
         at android.support.v7.widget.RecyclerView$1.run(RecyclerView.java:323) 
         at android.view.Choreographer$CallbackRecord.run(Choreographer.java:919) 
         at android.view.Choreographer.doCallbacks(Choreographer.java:710) 
         at android.view.Choreographer.doFrame(Choreographer.java:642) 
         at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:905) 
         at android.os.Handler.handleCallback(Handler.java:739) 
         at android.os.Handler.dispatchMessage(Handler.java:95) 
         at android.os.Looper.loop(Looper.java:148) 
         at android.app.ActivityThread.main(ActivityThread.java:5582) 
         at java.lang.reflect.Method.invoke(Native Method) 
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
        Caused by: java.lang.NoSuchMethodException: <init> [class android.view.View] 
         at java.lang.Class.getConstructor(Class.java:528) 
         at java.lang.Class.getConstructor(Class.java:492) 
         at com.firebase.ui.database.FirebaseRecyclerAdapter.onCreateViewHolder(FirebaseRecyclerAdapter.java:169) 
         at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6078)  
         at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5248)  
         at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5158)  
         at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2061)  
         at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1445)  
         at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1408)  
         at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:580)  
         at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3379)  
         at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3188)  
         at android.support.v7.widget.RecyclerView.consumePendingUpdateOperations(RecyclerView.java:1595)  
         at android.support.v7.widget.RecyclerView$1.run(RecyclerView.java:323)  
         at android.view.Choreographer$CallbackRecord.run(Choreographer.java:919)  
         at android.view.Choreographer.doCallbacks(Choreographer.java:710)  
         at android.view.Choreographer.doFrame(Choreographer.java:642)  
         at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:905)  
         at android.os.Handler.handleCallback(Handler.java:739)  
         at android.os.Handler.dispatchMessage(Handler.java:95)  
         at android.os.Looper.loop(Looper.java:148)  
         at android.app.ActivityThread.main(ActivityThread.java:5582)  
         at java.lang.reflect.Method.invoke(Native Method)

我的主要活动，MainActivity.java

package com.example.visan.newappfireui; 

import android.content.Context; 
import android.os.Bundle; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.LinearLayoutManager; 
import android.support.v7.widget.RecyclerView; 
import android.view.View; 
import android.widget.ImageView; 
import android.widget.TextView; 

import com.firebase.ui.database.FirebaseRecyclerAdapter; 
import com.google.firebase.database.DatabaseReference; 
import com.google.firebase.database.FirebaseDatabase; 
import com.squareup.picasso.Picasso; 

public class MainActivity extends AppCompatActivity { 

    private FirebaseRecyclerAdapter adapter; 

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

     DatabaseReference reference= FirebaseDatabase.getInstance().getReference().child("ailment"); 

     RecyclerView recyclerView=(RecyclerView)findViewById(R.id.recycler); 
     recyclerView.setHasFixedSize(true); 
     recyclerView.setLayoutManager(new LinearLayoutManager(this)); 

     adapter =new FirebaseRecyclerAdapter<ailment,DataHolder>(ailment.class,R.layout.recycler_row,DataHolder.class,reference){ 
      @Override 
      protected void populateViewHolder(DataHolder viewHolder, ailment model, int position) { 
       viewHolder=new DataHolder(getWindow().getDecorView().getRootView(),getApplicationContext()); 
       viewHolder.setName(model.getName()); 
       viewHolder.setImg(model.getImg()); 
      } 
     }; 
     recyclerView.setAdapter(adapter); 
    } 

    @Override 
    protected void onDestroy() { 
     super.onDestroy(); 
     adapter.cleanup(); 
    } 

    static class DataHolder extends RecyclerView.ViewHolder{ 

     public ImageView imageView; 
     public TextView textView; 
     private final Context context; 

     public DataHolder(View v, Context context){ 
      super(v); 
      imageView=(ImageView)v.findViewById(R.id.imageView); 
      textView=(TextView)v.findViewById(R.id.textView); 
      this.context=context; 
     } 

     public void setName(String name){ 
      textView.setText(name); 
     } 

     public void setImg(String img){ 
      Picasso.with(context).load(img).centerCrop().into(imageView); 
     } 
    } 
}

数据对象，ailment.java

package com.example.visan.newappfireui; 

public class ailment { 
    private String name; 
    private String img; 

    public ailment(){ 

    } 

    public ailment(String name,String img){ 
     this.name=name; 
     this.img=img; 
    } 

    public String getName(){ 
     return name; 
    } 

    public void setName(String name){ 
     this.name=name; 
    } 

    public String getImg(){ 
     return img; 
    } 

    public void setImg(String img){ 
     this.img=img; 
    } 
}

两个布局文件，这一个是用于主要活动，activity_main.xml中

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/activity_main" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context="com.example.visan.newappfireui.MainActivity"> 

    <android.support.v7.widget.RecyclerView 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:id="@+id/recycler"/> 
</RelativeLayout>

这对于回收视图的行，recycler_row.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    android:orientation="vertical" android:layout_width="match_parent" 
    android:layout_height="match_parent"> 

    <ImageView 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     app:srcCompat="@drawable/common_full_open_on_phone" 
     android:layout_alignParentTop="true" 
     android:layout_alignParentStart="true" 
     android:id="@+id/imageView" /> 

    <TextView 
     android:text="TextView" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@+id/imageView" 
     android:layout_alignParentStart="true" 
     android:id="@+id/textView" /> 
</RelativeLayout>

编辑：依附关系

来源

2017-01-29 Vishal Anand

你有什么gradle这个依赖，还你碰巧使用Multidex – EpicPandaForce

@EpicPandaForce没有使用MultiDex。顺便说一句，我已经添加了依赖关系 –

hmm什么是'viewHolder = new DataHolder（getWindow（）。getDecorView（）。getRootView（），getApplicationContext（））;'为什么？ – EpicPandaForce

你DataHolder应该是公开的这样

public static class DataHolder extends RecyclerView.ViewHolder{...}

来源

2017-03-14 22:44:42 mbmyke

它工作，谢谢。为什么它必须是静态的？ –

também奎罗军刀。与静态 –

它工作正常。 firebase ui文件存在问题https://github.com/firebase/FirebaseUI-Android/tree/master/database#create-a-custom-viewholder –

java.lang.NoSuchMethodException：<init> [类android.view.View] FirebaseRecyclerAdapter

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