我正在尝试在我的 Android 应用程序中添加 Firebase Recyclerview。当我添加时，所有数据都正常从 Firestore 获取，但是当涉及到处理 onClick 事件时，它根本不起作用。
这是代码：
import androidx.appcompat.app.AppCompatActivity;
import androidx.paging.PagedList;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.os.Bundle;
import android.widget.Toast;
import android.util.Log;
import com.firebase.ui.firestore.paging.FirestorePagingOptions;
import com.google.firebase.firestore.FirebaseFirestore;
import com.google.firebase.firestore.Query;
public class TipsActivity extends AppCompatActivity implements FirestoreTipsAdapter.OnListItemClick {
FirestoreTipsAdapter firestoreTipsAdapter;
FirebaseFirestore firebaseFirestore;
RecyclerView recyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tips);
firebaseFirestore = FirebaseFirestore.getInstance();
recyclerView = findViewById(R.id.list);
Query query = firebaseFirestore.collection("DailyTips").document("MyTips").collection("Tips");
PagedList.Config config = new PagedList.Config.Builder()
.setInitialLoadSizeHint(10)
.setPageSize(5)
.build();
FirestorePagingOptions<TipsModel> firestorePagingOptions = new FirestorePagingOptions.Builder<TipsModel>()
.setLifecycleOwner(this)
.setQuery(query,config,TipsModel.class)
.build();
firestoreTipsAdapter = new FirestoreTipsAdapter(firestorePagingOptions,this,this);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(firestoreTipsAdapter);
}
@Override
public void onItemClick() {
Toast.makeText(this, "Show up bruh!", Toast.LENGTH_SHORT).show();
Log.d("AT_LEAST","You should work");
}
}
这是我的：
package com.mycompany.company;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.firebase.ui.firestore.paging.FirestorePagingAdapter;
import com.firebase.ui.firestore.paging.FirestorePagingOptions;
public class FirestoreTipsAdapter extends FirestorePagingAdapter<TipsModel, FirestoreTipsAdapter.TipsViewHolder> {
private OnListItemClick onListItemClick;
Context context;
public FirestoreTipsAdapter(@NonNull FirestorePagingOptions<TipsModel> options,OnListItemClick onListItemClick,Context context) {
super(options);
this.onListItemClick = onListItemClick;
this.context = context;
}
@Override
protected void onBindViewHolder(@NonNull TipsViewHolder holder, int position, @NonNull TipsModel model) {
holder.title.setText(model.getTitle());
holder.description.setText(model.getDescription());
}
@NonNull
@Override
public TipsViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item,parent,false);
return new TipsViewHolder(view);
}
public class TipsViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView title,description;
public TipsViewHolder(@NonNull View itemView) {
super(itemView);
title = itemView.findViewById(R.id.list_title);
description = itemView.findViewById(R.id.list_desc);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(context, "Are you working bro?", Toast.LENGTH_SHORT).show();
}
});
}
@Override
public void onClick(View v) {
onListItemClick.onItemClick();
}
}
public interface OnListItemClick{
void onItemClick();
}
}
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_margin="10dp"
android:id="@+id/tipCardView"
app:cardElevation="5dp"
app:cardBackgroundColor="#E2E0EE"
app:cardCornerRadius="5dp"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout
android:id="@+id/list_root"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:orientation="vertical"
android:background="?attr/selectableItemBackground"
android:padding="16dp">
<TextView
android:id="@+id/list_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Title"
android:textColor="@android:color/black"
android:textSize="16sp"
android:textStyle="bold" />
<TextView
android:id="@+id/list_desc"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:text="Description" />
</LinearLayout>
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:src="@drawable/curveshape"
android:layout_gravity="end|bottom"
android:layout_marginBottom="-30dp"
android:alpha="0.2"
/>
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@drawable/tips"
android:layout_gravity="end|bottom"
android:layout_marginBottom="-10dp"
android:layout_marginRight="25dp"
android:alpha="0.2"
/>
</androidx.cardview.widget.CardView>
Note: I'm able to fetch data from Firestore, it is showing data properly.
Please help. I followed all other answers from Stack Overflow.
在给定的设置中，OnClickListener正在设置在ViewHolder's itemView，这将是根View在它的布局中，这是CardView。但是，那clickable and focusable上设置的属性LinearLayout导致它首先捕获触摸事件，所以它基本上是在触摸事件之前拦截它们CardView将处理它们以响应点击。没有听众LinearLayout，但是，所以什么也没有发生。
假设您想要整个项目View可点击，只需删除android:clickable="true" and android:focusable="true"属性来自于<LinearLayout>。没有clickable or focusable孩子们，CardView然后将最终注册点击。
相反，如果您可能只想要某个子项可点击 – 例如，LinearLayout– 然后你会设置OnClickListener那个孩子，而不是整个人CardView。不过，如果这是唯一可点击的子项或孙项，您仍然不需要在任何地方使用这些属性。这些属性在基本的、相对平坦的布局中通常不是必需的，例如列表项的布局。