Add Superuser logging UI

app/src/main/java/com/topjohnwu/magisk/SuLogFragment.java

@@ -3,18 +3,54 @@ package com.topjohnwu.magisk;
 
 import android.app.Fragment;
 import android.os.Bundle;
+import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.topjohnwu.magisk.adapters.SuLogAdapter;
+import com.topjohnwu.magisk.superuser.SuLogDatabaseHelper;
+import com.topjohnwu.magisk.superuser.SuLogEntry;
+
+import java.util.List;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.Unbinder;
 
 public class SuLogFragment extends Fragment {
 
+    @BindView(R.id.empty_rv) TextView emptyRv;
+    @BindView(R.id.recyclerView) RecyclerView recyclerView;
+
+    private Unbinder unbinder;
 
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_su_log, container, false);
+        View v = inflater.inflate(R.layout.fragment_su_log, container, false);
+        unbinder = ButterKnife.bind(this, v);
+
+        SuLogDatabaseHelper dbHelper = new SuLogDatabaseHelper(getActivity());
+        List<SuLogEntry> logs = dbHelper.getLogList();
+
+        if (logs.size() == 0) {
+            emptyRv.setVisibility(View.VISIBLE);
+            recyclerView.setVisibility(View.GONE);
+        } else {
+            recyclerView.setAdapter(new SuLogAdapter(logs).getAdapter());
+            emptyRv.setVisibility(View.GONE);
+            recyclerView.setVisibility(View.VISIBLE);
+        }
+
+        return v;
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        unbinder.unbind();
+    }
 }