RecyclerView OnClicklistener無響應

首先我知道有幾百個這樣的問題，但答案並沒有解決我的問題。我懷疑這是我錯過的小事，基本上我已經添加了RecyclerView，並且需要在單擊卡片時開始新的活動。RecyclerView OnClicklistener無響應

我一直在關注本教程，直到現在，它一直在順風順水。 https://guides.codepath.com/android/using-the-recyclerview

這是回收站

<FrameLayout 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" 
    tools:context=".MainActivity"> 

    <ImageView 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:id="@+id/bgImg" 
     android:scaleType="centerCrop"/> 

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

</FrameLayout>

這是卡

<android.support.v7.widget.CardView 
    xmlns:card_view="http://schemas.android.com/apk/res-auto" 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/card_view" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    card_view:cardCornerRadius="4dp" 
    android:layout_margin="5dp" 
    android:clickable="true" 
    android:background="?android:attr/selectableItemBackground"> 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"> 

    <ImageView 
     android:id="@+id/vendor_image2" 
     android:layout_width="fill_parent" 
     android:layout_height="240dp" 
     android:padding="5dp" /> 

    <RelativeLayout android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@+id/vendor_image2" 
     > 

     <TextView 
      android:id="@+id/vendor_name2" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceMedium" 
      android:textStyle="bold" 
      android:layout_marginLeft="10dp" 
      android:layout_marginTop="5dp" 
      android:paddingBottom="5dp"/> 

     <TextView 
      android:id="@+id/vendor_content2" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="15dp" 
      android:layout_marginTop="7dp" 
      android:layout_toEndOf="@+id/vendor_name2" 
      android:textColor="@color/text_col" 
      android:paddingBottom="5dp" /> 

     <TextView 
      android:id="@+id/vendor_suburb2" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:textStyle="italic" 
      android:textColor="@color/text_col" 
      android:layout_below="@+id/vendor_name2" 
      android:layout_marginLeft="10dp" /> 
     <RatingBar 
      android:id="@+id/MyRating2" 
      style="?android:attr/ratingBarStyleSmall" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_below="@id/vendor_suburb2" 
      android:layout_marginLeft="10dp" 
      android:isIndicator="true" 
      android:layout_marginTop="5dp" 
      android:layout_marginBottom="5dp" 
      android:numStars="5" 
      android:textColor="@android:color/black" 
      android:rating="3.5" 
      android:stepSize="0.1" /> 

    </RelativeLayout> 
</LinearLayout> 
    </android.support.v7.widget.CardView>

最後，適配器和Handler

import android.app.Activity; 
import android.content.Context; 
import android.content.Intent; 
import android.graphics.Bitmap; 
import android.support.v7.widget.RecyclerView; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ImageView; 
import android.widget.RatingBar; 
import android.widget.TextView; 

import com.iconiccode.android.guestloc8tor.SQL.DatabaseHandler; 
import com.nostra13.universalimageloader.core.DisplayImageOptions; 
import com.nostra13.universalimageloader.core.ImageLoader; 
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration; 
import com.nostra13.universalimageloader.core.assist.ImageScaleType; 
import com.nostra13.universalimageloader.core.display.FadeInBitmapDisplayer; 

import org.json.JSONException; 
import org.json.JSONObject; 

import java.util.List; 

public class VendorRecycleAdapter extends RecyclerView.Adapter<VendorRecycleAdapter.VendorHolder> 
{ 
    public List<Vendor> vendorList; 
    private DatabaseHandler dbHandler = new DatabaseHandler(MyApp.getContext()); 
    private Vendor currentVendor; 
    int cate; 
    Activity thiscontext; 
    public VendorRecycleAdapter(Activity context, int Cate) 
    { 
     this.cate=Cate; 
     this.thiscontext=context; 
    } 

    @Override 
    public VendorHolder onCreateViewHolder(ViewGroup parent, int viewType) 
    { 
     LayoutInflater inflater = LayoutInflater.from(thiscontext); 

     //View view = LayoutInflater.from(parent.getContext()).inflate(android.R.layout.simple_list_item_2, parent, false); 
     View view = inflater.inflate(R.layout.vendor_list_cards,parent,false); 
     return new VendorHolder(view); 
    } 

    @Override 
    public void onBindViewHolder(VendorHolder holder, int position) 
    { 
     vendorList = dbHandler.getVendorData(cate); 
     currentVendor = vendorList.get(position); 

     // Get the image string from the Vendor object 
     String vendorImage = currentVendor.getImage(); 

     Log.e("Vendor Adapter Image", vendorImage); 

     // Get the name string from the Vendor object 
     String vendorName = currentVendor.getCompanyName(); 

     Log.e("Vendor Adapter Name", vendorName); 

     // Get the content string from the Vendor object 
     String vendorContent = currentVendor.getContent(); 

     // Get the location string from the Vendor object 
     String vendorSuburb = currentVendor.getSuburb(); 

     Log.e("Vendor Adapter Suburb", vendorSuburb); 

     // Find the TextView with view ID vendor_name 

     // Display the name of the current vendor in that TextView 
     holder.Vvendor_name.setText(vendorName); 

     holder.Vvendor_image.setImageResource(R.drawable.loading); 

     ImageLoader imageLoader; 
     DisplayImageOptions options; 
     imageLoader = ImageLoader.getInstance(); 

     String url = vendorImage; 
     imageLoader.init(ImageLoaderConfiguration.createDefault(MyApp.getContext())); 
     options = new DisplayImageOptions.Builder() 
       .showImageForEmptyUri(R.drawable.loading) 
       .showImageOnFail(R.drawable.b4f29385) 
       .resetViewBeforeLoading(true).cacheOnDisk(true) 
       .imageScaleType(ImageScaleType.EXACTLY) 
       .bitmapConfig(Bitmap.Config.RGB_565).considerExifParams(true) 
       .displayer(new FadeInBitmapDisplayer(300)).build(); 

     imageLoader.displayImage(url, holder.Vvendor_image); 

     // Find the TextView with view ID vendor_content 
     holder.Vvendor_content.setText(vendorContent); 

     holder.Vvendor_suburb.setText(vendorSuburb); 
    } 

    @Override 
    public int getItemCount() 
    { 
     vendorList = dbHandler.getVendorData(cate); 
     return vendorList.size(); 
    } 


    public class VendorHolder extends RecyclerView.ViewHolder implements View.OnClickListener 
    { 
     public ImageView Vvendor_image; 
     public TextView Vvendor_name,Vvendor_content,Vvendor_suburb; 
     public RatingBar Vrating; 
     public VendorHolder(View itemView) 
     { 
      //These pull as null 
      super(itemView); 
      Vvendor_image = (ImageView)itemView.findViewById(R.id.vendor_image2); 
      Vvendor_name = (TextView)itemView.findViewById(R.id.vendor_name2); 
      Vvendor_content =(TextView)itemView.findViewById(R.id.vendor_content2); 
      Vvendor_suburb = (TextView)itemView.findViewById(R.id.vendor_suburb2); 
      Vrating = (RatingBar) itemView.findViewById(R.id.MyRating2); 
     } 

     @Override 
     public void onClick(View v) 
     { 
//   int position = getAdapterPosition(); 
//   currentVendor = vendorList.get(position); 
      Intent intent = new Intent(thiscontext,VendorDetailsActivity.class).addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION); 
      String Category = Integer.toString(cate); 
      JSONObject message = currentVendor.getAllData(); 
      try { 
       intent.putExtra("IMAGE", message.getString("IMAGE")); 
       intent.putExtra("URL", message.getString("URL")); 
       intent.putExtra("CONTENT", message.getString("CONTENT")); 
       intent.putExtra("COMPANY_NAME", message.getString("COMPANY_NAME")); 
       intent.putExtra("TEL", message.getString("TEL")); 
       intent.putExtra("BOOKING_URL", message.getString("BOOKING_URL")); 
       intent.putExtra("LAT", message.getString("LAT")); 
       intent.putExtra("LON", message.getString("LON")); 
       intent.putExtra("STREET", message.getString("STREET")); 
       intent.putExtra("SUBURB", message.getString("SUBURB")); 
       intent.putExtra("PROVINCE", message.getString("PROVINCE")); 
       intent.putExtra("CITY", message.getString("CITY")); 
       intent.putExtra("CAT",Category); 
      } catch (JSONException json) 
      { 
       Log.e("ERROR", json.getMessage()); 
      } 
      thiscontext.startActivity(intent); 
     } 
    } 

}

任何幫助將不勝感激。感謝

來源

2017-02-24 Demonic217

我想你忘記了設置onClickListener在ViewHolder構造：

public VendorHolder(View itemView) 
    { 
     //These pull as null 
     super(itemView); 
     Vvendor_image = (ImageView)itemView.findViewById(R.id.vendor_image2); 
     Vvendor_name = (TextView)itemView.findViewById(R.id.vendor_name2); 
     Vvendor_content =(TextView)itemView.findViewById(R.id.vendor_content2); 
     Vvendor_suburb = (TextView)itemView.findViewById(R.id.vendor_suburb2); 
     Vrating = (RatingBar) itemView.findViewById(R.id.MyRating2); 

     // If it should be triggered only when clicking on a specific view, replace itemView with the view you want. 
     itemView.setOnClickListener(this); 
    }

來源

2017-02-24 21:46:02 mVck

我知道這是一些愚蠢的，你能告訴我怎麼準確地放置了嗎？ – Demonic217

我編輯了我的答案@ Demonic217 – mVck

RecyclerView OnClicklistener無響應

回答

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