[英]How to add SetOnClicklistener on recyclerview
This is my adapter.. 这是我的适配器..
package com.lim.fiture.fiture.adapters;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import com.lim.fiture.fiture.R;
import com.lim.fiture.fiture.models.Exercise;
import java.util.ArrayList;
public class AdminActivityAdapter extends RecyclerView.Adapter <AdminActivityAdapter.ViewHolder>{
Context context;
public ArrayList <Exercise> exercises;
private OnItemClicked onClick;
//make interface like this
public interface OnItemClicked {
void onItemClick(int position);
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_admin_adapter,parent,false);
AdminActivityAdapter.ViewHolder viewHolder = new AdminActivityAdapter.ViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.exerciseName.setText(exercises.get(position).getExerciseName());
holder.mainMuscleGroup.setText(exercises.get(position).getMainMuscleGroup());
holder.otherMuscleGroup.setText(exercises.get(position).getOtherMuscleGroup());
holder.type.setText(exercises.get(position).getType());
holder.equipment.setText(exercises.get(position).getEquipment());
holder.difficulty.setText(exercises.get(position).getDifficulty());
holder.deleteExercise.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onClick.onItemClick(position);
}
});
}
@Override
public int getItemCount() {
return exercises.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
private EditText exerciseName, mainMuscleGroup, otherMuscleGroup, type, equipment, difficulty;
private ImageButton deleteExercise;
public ViewHolder(View itemView) {
super(itemView);
exerciseName = itemView.findViewById(R.id.exerciseName);
mainMuscleGroup = itemView.findViewById(R.id.mainMuscleGroup);
otherMuscleGroup = itemView.findViewById(R.id.otherMuscleGroup);
type = itemView.findViewById(R.id.type);
equipment = itemView.findViewById(R.id.equipment);
difficulty = itemView.findViewById(R.id.difficulty);
deleteExercise = itemView.findViewById(R.id.deleteBtn);
}
}
}
and this one is my activity 这是我的活动
package com.lim.fiture.fiture.activities;
import android.content.ClipData;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.ActionBar;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.helper.ItemTouchHelper;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.support.v7.app.AppCompatActivity;
import android.widget.ImageButton;
import android.widget.Toast;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.ChildEventListener;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.lim.fiture.fiture.R;
import com.lim.fiture.fiture.adapters.AdminActivityAdapter;
import com.lim.fiture.fiture.adapters.ExercisesAdapter;
import com.lim.fiture.fiture.models.Exercise;
import java.util.ArrayList;
public class AdminActivity extends AppCompatActivity implements AdminActivityAdapter.OnItemClicked {
private RecyclerView exercisesList;
private AdminActivityAdapter adapter;
private RecyclerView.LayoutManager layoutManager;
private FloatingActionButton addExerciseBtn;
private ExercisesAdapter exercisesAdapter;
private ArrayList<Exercise> exercises = new ArrayList<>();
//TODO: instance variables for firebase database
private DatabaseReference exerciseReference;
private static final String TAG = "AdminActivity";
private FirebaseAuth mAuth;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_admin);
mAuth = FirebaseAuth.getInstance();
exerciseReference = FirebaseDatabase.getInstance().getReference("Exercises");
findViews();
loadExercises();
}
@Override
protected void onStart() {
super.onStart();
FirebaseUser user = mAuth.getCurrentUser();
if (user != null) {
// do your stuff
} else {
signInAnonymously();
}
}
private void signInAnonymously() {
mAuth.signInAnonymously().addOnSuccessListener(this, new OnSuccessListener<AuthResult>() {
@Override
public void onSuccess(AuthResult authResult) {
// do your stuff
}
})
.addOnFailureListener(this, new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception exception) {
Log.e(TAG, "signInAnonymously:FAILURE", exception);
}
});
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.addExerciseBtn:
startActivity(new Intent(this, AddExerciseStepOne.class));
break;
}
}
public void findViews() {
addExerciseBtn = findViewById(R.id.addExerciseBtn);
addExerciseBtn.setOnClickListener(this);
exercisesList = findViewById(R.id.exercisesList);
layoutManager = new LinearLayoutManager(this);
exercisesList.setLayoutManager(layoutManager);
ActionBar bar = getSupportActionBar();
bar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#2980b9")));
bar.setTitle("Fiture Admin");
}
public void loadExercises() {
exerciseReference.addChildEventListener(new ChildEventListener() {
@Override
public void onChildAdded(DataSnapshot dataSnapshot, String s) {
Exercise exercise = dataSnapshot.getValue(Exercise.class);
Log.d(TAG, exercise.toString());
exercises.add(exercise);
exercisesAdapter = new ExercisesAdapter(AdminActivity.this, exercises);
exercisesList.setAdapter(exercisesAdapter);
}
@Override
public void onChildChanged(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onChildRemoved(DataSnapshot dataSnapshot) {
}
@Override
public void onChildMoved(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
@Override
public void onItemClick(int position) {
}
}
So what I wanted to do is when deletebutton is clicked it will delete the selected (which is a cardview containing details about an exercise) inside the recycler view and also delete it in firebase but im having a hard time looking for tutorials on the internet. 所以我想要做的是当点击删除按钮时它会在回收器视图中删除所选的(包含有关练习的详细信息的cardview)并在firebase中删除它,但我很难在互联网上寻找教程。 Anyone knows how to do this? 谁知道怎么做? Badly need your help. 非常需要你的帮助。 thanks 谢谢
public class RecycleViewAdapter extends RecyclerView.Adapter<RecycleViewHolder> {// Recyclerview will extend to
private List<FileName> fileNames;
private Context context;
//declare interface
private OnItemClicked onClick;
//make interface like this
public interface OnItemClicked {
void onItemClick(int position);
}
public RecycleViewAdapter(Context context,List<FileName> fileNames) {
this.context = context;
this.fileNames = fileNames;
}
Now assign click to interface 现在分配点击界面
@Override
public void onBindViewHolder(RecycleViewHolder holder, final int position) {
//............//
holder.title.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onClick.onItemClick(position);
}
});
In your activity 在你的活动中
public class MainActivity extends Activity implements OnItemClicked { 公共类MainActivity扩展Activity实现OnItemClicked {
private RecyclerView mRecyclerView;
private RecycleViewAdapter mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_city);
mRecyclerView = (RecyclerView)findViewById(R.id.list);
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
mAdapter = new RecycleViewAdapter(cities, R.layout.row_city, this);
mRecyclerView.setAdapter(mAdapter);
mAdapter.setOnClick(MainActivity.this); // Bind the listener
}
@Override
public void onItemClick(int position) {
// The onClick implementation of the RecyclerView item click
//ur intent code here
} }
You can try it 你可以尝试一下
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
imageList.get(position); // here you will get the clicked item from
//your imagelist and you can check by getting a title by using this
String title= imageList.get(position).getTitle();
}
});
I would recommend to use Epoxy and Kotlin - it helps to solve this problem much easier (but that is just IMHO) 我建议使用Epoxy和Kotlin - 它有助于更容易地解决这个问题(但这只是恕我直言)
In your case it can be: 在你的情况下,它可以是:
create interface in your activity (or fragment) 在您的活动(或片段)中创建界面
interface ExecriseClickListener {
public void onExerciseClick(Exercise exercise);
}
create field inside adapter 在适配器内创建字段
ExecriseClickListener listener;
add logic in ViewHolder 在ViewHolder中添加逻辑
public void onBindViewHolder(ViewHolder holder, int position) {
...
holder.btnDelete.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onExerciseClick(exercises.get(position));
}
});
and set listener from activity (or fragment) 并从活动(或片段)设置监听器
exercisesAdapter.listener = new ExecriseClickListener{
@Override
public void onExerciseClick(Exercise exercise) {
//TODO
}
});
How to inflate different layout using same recycle adapter? 如何使用相同的回收适配器充气不同的布局?
My string recommendation - try Epoxy. 我的字符串推荐 - 尝试Epoxy。 It allows you to use many different items on your list with less code. 它允许您使用较少的代码在列表中使用许多不同的项目。 epoxy on github github上的环氧树脂
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