feat: 초기 로컬 파일 탐색기 기능 구현

app/src/main/java/be/gyu/android/file/explorer/FileAdapter.java

@@ -0,0 +1,53 @@
+package be.gyu.android.file.explorer;
+
+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.List;
+
+public class FileAdapter extends RecyclerView.Adapter<FileAdapter.FileViewHolder> {
+
+    private final List<FileItem> fileList;
+
+    public FileAdapter(List<FileItem> fileList) {
+        this.fileList = fileList;
+    }
+
+    @NonNull
+    @Override
+    public FileViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_file, parent, false);
+        return new FileViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull FileViewHolder holder, int position) {
+        FileItem fileItem = fileList.get(position);
+        holder.name.setText(fileItem.getName());
+        if (fileItem.isDirectory()) {
+            holder.icon.setImageResource(R.drawable.ic_folder);
+        } else {
+            holder.icon.setImageResource(R.drawable.ic_file);
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return fileList.size();
+    }
+
+    static class FileViewHolder extends RecyclerView.ViewHolder {
+        ImageView icon;
+        TextView name;
+
+        public FileViewHolder(@NonNull View itemView) {
+            super(itemView);
+            icon = itemView.findViewById(R.id.icon);
+            name = itemView.findViewById(R.id.name);
+        }
+    }
+}

app/src/main/java/be/gyu/android/file/explorer/FileItem.java

@@ -0,0 +1,25 @@
+package be.gyu.android.file.explorer;
+
+public class FileItem {
+    private String name;
+    private String path;
+    private boolean isDirectory;
+
+    public FileItem(String name, String path, boolean isDirectory) {
+        this.name = name;
+        this.path = path;
+        this.isDirectory = isDirectory;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getPath() {
+        return path;
+    }
+
+    public boolean isDirectory() {
+        return isDirectory;
+    }
+}

app/src/main/java/be/gyu/android/file/explorer/MainActivity.java

@@ -0,0 +1,12 @@
+package be.gyu.android.file.explorer;
+
+import androidx.appcompat.app.AppCompatActivity;
+import android.os.Bundle;
+
+public class MainActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+}

app/src/main/res/drawable/ic_file.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M6,2c-1.1,0 -1.99,0.9 -1.99,2L4,20c0,1.1 0.89,2 1.99,2H18c1.1,0 2,-0.9 2,-2V8l-6,-6H6zm7,7V3.5L18.5,9H13z"/>
+</vector>

app/src/main/res/drawable/ic_folder.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M10,4H4c-1.1,0 -1.99,0.9 -1.99,2L2,18c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2V8c0,-1.1 -0.9,-2 -2,-2h-8l-2,-2z"/>
+</vector>

app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recyclerView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/list_item_file.xml

@@ -0,0 +1,21 @@
+<?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"
+    android:orientation="horizontal"
+    android:padding="16dp">
+
+    <ImageView
+        android:id="@+id/icon"
+        android:layout_width="40dp"
+        android:layout_height="40dp" />
+
+    <TextView
+        android:id="@+id/name"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:layout_gravity="center_vertical"
+        android:layout_marginStart="16dp" />
+
+</LinearLayout>

app/src/main/res/xml/provider_paths.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <root-path name="root" path="." />
+</paths>