added layout, view models, adapter and fragment

app/src/main/java/org/mian/gitnex/fragments/FilesFragment.java

@@ -0,0 +1,148 @@
+package org.mian.gitnex.fragments;
+
+import android.net.Uri;
+import android.os.Bundle;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.Observer;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.recyclerview.widget.DividerItemDecoration;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
+import android.os.Handler;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import org.mian.gitnex.R;
+import org.mian.gitnex.adapters.FilesAdapter;
+import org.mian.gitnex.helpers.Authorization;
+import org.mian.gitnex.models.Files;
+import org.mian.gitnex.util.TinyDB;
+import org.mian.gitnex.viewmodels.FilesViewModel;
+import org.mian.gitnex.viewmodels.ReleasesViewModel;
+import java.util.List;
+
+/**
+ * Author M M Arif
+ */
+
+public class FilesFragment extends Fragment {
+
+    private ProgressBar mProgressBar;
+    private FilesAdapter adapter;
+    private RecyclerView mRecyclerView;
+    private TextView noDataFiles;
+    private static String repoNameF = "param2";
+    private static String repoOwnerF = "param1";
+
+    private String repoName;
+    private String repoOwner;
+
+    private OnFragmentInteractionListener mListener;
+
+    public FilesFragment() {
+    }
+
+    public static FilesFragment newInstance(String param1, String param2) {
+        FilesFragment fragment = new FilesFragment();
+        Bundle args = new Bundle();
+        args.putString(repoOwnerF, param1);
+        args.putString(repoNameF, param2);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            repoName = getArguments().getString(repoNameF);
+            repoOwner = getArguments().getString(repoOwnerF);
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        View v = inflater.inflate(R.layout.fragment_files, container, false);
+
+        TinyDB tinyDb = new TinyDB(getContext());
+        final String instanceUrl = tinyDb.getString("instanceUrl");
+        final String loginUid = tinyDb.getString("loginUid");
+        final String instanceToken = "token " + tinyDb.getString(loginUid + "-token");
+
+        noDataFiles = v.findViewById(R.id.noDataFiles);
+
+        final SwipeRefreshLayout swipeRefresh = v.findViewById(R.id.pullToRefresh);
+
+        mRecyclerView = v.findViewById(R.id.recyclerView);
+        mRecyclerView.setHasFixedSize(true);
+        mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+
+        DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(mRecyclerView.getContext(),
+                DividerItemDecoration.VERTICAL);
+        mRecyclerView.addItemDecoration(dividerItemDecoration);
+
+        mProgressBar = v.findViewById(R.id.progress_bar);
+
+        swipeRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
+            @Override
+            public void onRefresh() {
+                new Handler().postDelayed(new Runnable() {
+                    @Override
+                    public void run() {
+                        swipeRefresh.setRefreshing(false);
+                        ReleasesViewModel.loadReleasesList(instanceUrl, Authorization.returnAuthentication(getContext(), loginUid, instanceToken), repoOwner, repoName);
+                    }
+                }, 50);
+            }
+        });
+
+        fetchDataAsync(instanceUrl, Authorization.returnAuthentication(getContext(), loginUid, instanceToken), repoOwner, repoName);
+
+        return  v;
+    }
+
+    private void fetchDataAsync(String instanceUrl, String instanceToken, String owner, String repo) {
+
+        FilesViewModel filesModel = new ViewModelProvider(this).get(FilesViewModel.class);
+
+        filesModel.getFilesList(instanceUrl, instanceToken, owner, repo).observe(this, new Observer<List<Files>>() {
+            @Override
+            public void onChanged(@Nullable List<Files> filesListMain) {
+                adapter = new FilesAdapter(getContext(), filesListMain);
+                if(adapter.getItemCount() > 0) {
+                    mRecyclerView.setAdapter(adapter);
+                    noDataFiles.setVisibility(View.GONE);
+                }
+                else {
+                    adapter.notifyDataSetChanged();
+                    mRecyclerView.setAdapter(adapter);
+                    noDataFiles.setVisibility(View.VISIBLE);
+                }
+                mProgressBar.setVisibility(View.GONE);
+            }
+        });
+
+    }
+
+    public void onButtonPressed(Uri uri) {
+        if (mListener != null) {
+            mListener.onFragmentInteraction(uri);
+        }
+    }
+
+    @Override
+    public void onDetach() {
+        super.onDetach();
+        mListener = null;
+    }
+
+    public interface OnFragmentInteractionListener {
+        void onFragmentInteraction(Uri uri);
+    }
+}