Programming/Android

안드로이드 친구목록만들기 (리사이클러뷰)

fishersheep 2021. 8. 17. 14:13
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main2.java

package doubleslash05.mini.team11;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.LinearLayout;

public class MainActivity2 extends AppCompatActivity {

    private ImageButton im1,im2;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        setTitle("채팅");

        im1 = (ImageButton) findViewById(R.id.im1);
        im2 = (ImageButton) findViewById(R.id.im2);

        RecyclerView recyclerView= findViewById(R.id.recyclerView);

        LinearLayoutManager layoutManager =
                new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false);
        recyclerView.setLayoutManager(layoutManager);
        PersonAdapter adapter = new PersonAdapter();

        adapter.addItem(new Person("김민수","aaa","2020.09.14"));
        adapter.addItem(new Person("김하늘","bbb","2020.09.13"));
        adapter.addItem(new Person("홍길동","ccc","2020.09.12"));
        adapter.addItem(new Person("홍길동","ddd","2020.09.11"));
        adapter.addItem(new Person("홍길동","eee","2020.09.10"));
        adapter.addItem(new Person("홍길동","fff","2020.09.9"));
        adapter.addItem(new Person("홍길동","ggg","2020.09.8"));
        adapter.addItem(new Person("홍길동","hhh","2020.09.7"));
        adapter.addItem(new Person("홍길동","iii","2020.09.6"));
        adapter.addItem(new Person("홍길동","jjj","2020.09.5"));

        recyclerView.setAdapter(adapter);

        im1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent_01 = new Intent(getApplication(), sub.class);
                startActivity(intent_01);
            }
        });

        im2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent_02 = new Intent(getApplication(), MainActivity2.class);
                startActivity(intent_02);
            }
        });
    }
}

sub.java

package doubleslash05.mini.team11;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.LinearLayout;

public class sub extends AppCompatActivity {

    private ImageButton im3,im4;

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

        setTitle("친구");
        im3 = (ImageButton) findViewById(R.id.im3);
        im4=(ImageButton) findViewById(R.id.im4);

        RecyclerView recyclerView2 = findViewById(R.id.recyclerView2);

        LinearLayoutManager layoutManager2 =
                new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false);

        recyclerView2.setLayoutManager(layoutManager2);

        FriendAdapter adapter2 = new FriendAdapter();

        adapter2.addItem(new Friend("김영수","좋음",R.drawable.person,"발라드"));
        adapter2.addItem(new Friend("박민석","슬픔",R.drawable.person1,"힙합"));
        adapter2.addItem(new Friend("홍길동","나쁨",R.drawable.person2,"잔잔한노래"));
        adapter2.addItem(new Friend("김민석","슬픔",R.drawable.person1,"힙합"));
        adapter2.addItem(new Friend("백민석","슬픔",R.drawable.person,"발라드"));
        adapter2.addItem(new Friend("김민석","슬픔",R.drawable.person1,"힙합"));
        adapter2.addItem(new Friend("홍길동","좋음",R.drawable.person2,"발라드"));
        adapter2.addItem(new Friend("홍길동","나쁨",R.drawable.person,"발라드"));
        adapter2.addItem(new Friend("홍길동","좋음",R.drawable.person1,"7080"));





        recyclerView2.setAdapter(adapter2);

        im3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent_01 = new Intent(getApplication(), sub.class);
                startActivity(intent_01);
            }
        });

        im4.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent_02 = new Intent(getApplication(), MainActivity2.class);
                startActivity(intent_02);
            }
        });
    }
}

FriendAdapter

package doubleslash05.mini.team11;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import java.util.ArrayList;

public class FriendAdapter extends RecyclerView.Adapter<FriendAdapter.ViewHolder> {
    ArrayList<Friend> items= new ArrayList<>();


    @NonNull
    @Override
    public FriendAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        LayoutInflater inflater2 = LayoutInflater.from(parent.getContext());
        View itemview2= inflater2.inflate(R.layout.friend_item,parent,false);
        return new ViewHolder(itemview2);  /*여기있는 ViewHolder */
    }

    @Override
    public void onBindViewHolder(@NonNull FriendAdapter.ViewHolder holder, int position) {
        Friend item = items.get(position);
        holder.setItem(item);
    }

    @Override
    public int getItemCount() {
        return items.size();
    }

    static class ViewHolder extends RecyclerView.ViewHolder{
        TextView tv1,tv2,tv3;
        ImageView iv1;

        public ViewHolder(View itemView){
            super(itemView);
            tv1 = itemView.findViewById(R.id.text1);
            tv2=itemView.findViewById(R.id.text2);
            tv3 = itemView.findViewById(R.id.text3);
            iv1 = itemView.findViewById(R.id.image1);

        }
        public void setItem(Friend item){
            tv1.setText(item.getF_name());
            tv2.setText(item.getF_music());
            tv3.setText(item.getF_state());
            iv1.setImageResource(item.getF_iv());
        }

    }
    public void addItem(Friend item){
        items.add(item);
    }
    public void setItems(ArrayList<Friend>items){
        this.items = items;
    }
    public Friend getItem(int position){
        return items.get(position);
    }
    public void setItem(int position, Friend item){
        items.set(position,item);
    }

}

friend_item.xml

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/image1"
            android:layout_width="60dp"
            android:layout_height="60dp"
            app:srcCompat="@drawable/person"
            android:padding="5dp"/>


        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical">
        <RelativeLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
        <TextView
            android:id="@+id/text1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="이름"
            android:textSize="20sp"/>

        <TextView
            android:id="@+id/text2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="음악"
            android:textSize="20dp"
            android:gravity="right"/>

        </RelativeLayout>
            <TextView
                android:id="@+id/text3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="상태메시지"
                android:textSize="15sp"/>

        </LinearLayout>

</LinearLayout>
</LinearLayout>

friend.java

package doubleslash05.mini.team11;

import android.widget.ImageView;

public class Friend {
    private String f_name;
    private String f_state;
    private int f_iv;
    private String f_music;

    public Friend (String f_name,String f_state,int f_iv,String f_music)
    {
        this.f_name=f_name;
        this.f_state=f_state;
        this.f_iv = f_iv;
        this.f_music = f_music;
    }

    public String getF_name(){
        return f_name;
    }
    public void setF_name(){
        this.f_name=f_name;
    }

    public String getF_state(){
        return f_state;
    }
    public void setF_state(){
        this.f_state=f_state;
    }

    public int getF_iv(){
        return f_iv;
    }
    public void setF_iv(int f_iv1){
        this.f_iv=f_iv1;
    }

    public String getF_music(){
        return f_music;
    }
    public void setF_music(){
        this.f_music=f_music;
    }

}

personAdapter

package doubleslash05.mini.team11;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import java.util.ArrayList;

public class PersonAdapter extends RecyclerView.Adapter<PersonAdapter.ViewHolder> {
    ArrayList<Person> items =new ArrayList<>();

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int viewType) {      /* view를 생성할때 실행되어  viewholder를 리턴*/
        LayoutInflater inflater = LayoutInflater.from(viewGroup.getContext());
        View itemView = inflater.inflate(R.layout.person_item,viewGroup,false);
        return new ViewHolder(itemView);

    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder viewHolder, int position) {    /* viewholder내용 변경*/
        Person item = items.get(position);
        viewHolder.setItem(item);
    }

    @Override
    public int getItemCount() {
        return items.size();
    }

    static class ViewHolder extends RecyclerView.ViewHolder{
        private TextView textView;
        private TextView textView2;
        private TextView textView3;

        public ViewHolder(View itemVIew){
            super(itemVIew);

            textView= itemVIew.findViewById(R.id.textView);
            textView2= itemVIew.findViewById(R.id.textView2);
            textView3 = itemVIew.findViewById(R.id.textView3);

        }

        public void setItem(Person item){
            textView.setText(item.getName());
            textView2.setText(item.getrechat());
            textView3.setText(item.getDate());
        }
    }
    public void addItem(Person item){
        items.add(item);
    }
    public void setItems(ArrayList<Person>items){
        this.items = items;
    }
    public Person getItem(int position){
        return items.get(position);
    }
    public void setItem(int position,Person item){
        items.set(position,item);
    }
}

person_item.xml

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/imageView"
            android:layout_width="80dp"
            android:layout_height="80dp"
            app:srcCompat="@drawable/person"
            android:padding="5dp"/>


        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal">

                <TextView
                    android:id="@+id/textView"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textSize="30sp"
                    android:text="이름"/>

                <TextView
                    android:id="@+id/textView3"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentRight="true"
                    android:text="날짜"
                    android:textSize="20sp" />

            </RelativeLayout>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/textView2"
                android:text="최근대화"
                android:textSize="25sp"/>

        </LinearLayout>

    </LinearLayout>
</LinearLayout>

person.java

package doubleslash05.mini.team11;

public class Person {
    String name;
    String rechat;
    String date;


    public Person(String name, String rechat,String date) {
        this.name = name;
        this.rechat = rechat;
        this.date= date;
    }

    public String getName(){
        return name;
    }

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

    public String getrechat(){
        return rechat;
    }
    public void setrechat(){
        this.rechat=rechat;
    }
    public String getDate(){
        return date;
    }
    public void setDate(){
        this.date=date;
    }

}
​

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