move the list to a fragment

app/src/main/java/com/simplemobiletools/filemanager/Constants.java

@@ -0,0 +1,5 @@
+package com.simplemobiletools.filemanager;
+
+public class Constants {
+    public static final String PATH = "path";
+}

app/src/main/java/com/simplemobiletools/filemanager/activities/MainActivity.java

@@ -6,26 +6,15 @@ import android.os.Bundle;
 import android.os.Environment;
 import android.support.v4.app.ActivityCompat;
 import android.support.v7.app.AppCompatActivity;
-import android.view.View;
-import android.widget.AdapterView;
-import android.widget.ListView;
 
+import com.simplemobiletools.filemanager.Constants;
 import com.simplemobiletools.filemanager.R;
 import com.simplemobiletools.filemanager.Utils;
-import com.simplemobiletools.filemanager.adapters.ItemsAdapter;
-import com.simplemobiletools.filemanager.models.FileDirItem;
+import com.simplemobiletools.filemanager.fragments.ItemsFragment;
 
-import java.io.File;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-
-import butterknife.BindView;
 import butterknife.ButterKnife;
 
-public class MainActivity extends AppCompatActivity implements AdapterView.OnItemClickListener {
-    @BindView(R.id.items_list) ListView mListView;
-
+public class MainActivity extends AppCompatActivity {
     private static final int STORAGE_PERMISSION = 1;
 
     @Override
@@ -50,12 +39,13 @@ public class MainActivity extends AppCompatActivity implements AdapterView.OnIte
     }
 
     private void initializeFileManager() {
-        List<FileDirItem> items = getItems();
-        Collections.sort(items);
+        final Bundle bundle = new Bundle();
+        final String path = Environment.getExternalStorageDirectory().toString();
+        bundle.putString(Constants.PATH, path);
 
-        final ItemsAdapter adapter = new ItemsAdapter(this, items);
-        mListView.setAdapter(adapter);
-        mListView.setOnItemClickListener(this);
+        final ItemsFragment fragment = new ItemsFragment();
+        fragment.setArguments(bundle);
+        getSupportFragmentManager().beginTransaction().replace(R.id.fragment_holder, fragment).commit();
     }
 
     @Override
@@ -71,22 +61,4 @@ public class MainActivity extends AppCompatActivity implements AdapterView.OnIte
             }
         }
     }
-
-    private List<FileDirItem> getItems() {
-        final List<FileDirItem> items = new ArrayList<>();
-        final String path = Environment.getExternalStorageDirectory().toString();
-        final File root = new File(path);
-        File[] files = root.listFiles();
-        for (File file : files) {
-            final String curPath = file.getAbsolutePath();
-            final String curName = Utils.getFilename(curPath);
-            items.add(new FileDirItem(curPath, curName, file.isDirectory()));
-        }
-        return items;
-    }
-
-    @Override
-    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-
-    }
 }

app/src/main/java/com/simplemobiletools/filemanager/fragments/ItemsFragment.java

@@ -0,0 +1,65 @@
+package com.simplemobiletools.filemanager.fragments;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.ListView;
+
+import com.simplemobiletools.filemanager.Constants;
+import com.simplemobiletools.filemanager.R;
+import com.simplemobiletools.filemanager.Utils;
+import com.simplemobiletools.filemanager.adapters.ItemsAdapter;
+import com.simplemobiletools.filemanager.models.FileDirItem;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+
+public class ItemsFragment extends android.support.v4.app.Fragment implements AdapterView.OnItemClickListener {
+    @BindView(R.id.items_list) ListView mListView;
+
+    @Nullable
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        final View view = inflater.inflate(R.layout.items_fragment, container, false);
+        ButterKnife.bind(this, view);
+        return view;
+    }
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        final String path = getArguments().getString(Constants.PATH);
+        List<FileDirItem> items = getItems(path);
+        Collections.sort(items);
+
+        final ItemsAdapter adapter = new ItemsAdapter(getContext(), items);
+        mListView.setAdapter(adapter);
+        mListView.setOnItemClickListener(this);
+    }
+
+    private List<FileDirItem> getItems(String path) {
+        final List<FileDirItem> items = new ArrayList<>();
+        final File root = new File(path);
+        File[] files = root.listFiles();
+        for (File file : files) {
+            final String curPath = file.getAbsolutePath();
+            final String curName = Utils.getFilename(curPath);
+            items.add(new FileDirItem(curPath, curName, file.isDirectory()));
+        }
+        return items;
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+
+    }
+}

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

@@ -1,14 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
-    android:id="@+id/items_holder"
+<FrameLayout
+    android:id="@+id/fragment_holder"
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <ListView
-        android:id="@+id/items_list"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:paddingLeft="@dimen/activity_margin"/>
-
-</RelativeLayout>
+    android:layout_height="match_parent"/>

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

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    android:id="@+id/items_holder"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <ListView
+        android:id="@+id/items_list"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingLeft="@dimen/activity_margin"/>
+
+</RelativeLayout>