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- public List<Research> getAllResearch() {
- List<Research> researchList = new ArrayList<Research>();
- // Select All Query
- String selectQuery = "SELECT * FROM " + FILE_TABLE;
- SQLiteDatabase db = this.getWritableDatabase();
- Cursor cursor = db.rawQuery(selectQuery, null);
- // looping through all rows and adding to list
- if (cursor.moveToFirst()) {
- do {
- Research research = new Research();
- research.setId(Integer.parseInt(cursor.getString(0)));
- research.setTitle(cursor.getString(1));
- research.setAuthor(cursor.getString(2));
- research.setYear(cursor.getString(3));
- research.setDesc(cursor.getString(4));
- // Adding research to list
- researchList.add(research);
- } while (cursor.moveToNext());
- }
- Log.d(TAG,"student data"+ researchList.toString());
- // return research list
- return researchList;
- }
- public class CustomAdapter extends RecyclerView.Adapter<CustomAdapter.ViewHolder> {
- static Context context;
- CustomAdapter(Context context){
- this.context=context;
- }
- static List<Research> my_data;
- public CustomAdapter(Context context, List<Research> my_data) {
- this.context = context;
- this.my_data = my_data;
- this.my_data = new ArrayList<Research>();
- }
- @Override
- public CustomAdapter.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
- View v = LayoutInflater.from(viewGroup.getContext())
- .inflate(R.layout.card, viewGroup, false);
- ViewHolder viewHolder = new ViewHolder(v);
- return viewHolder;
- }
- @Override
- public void onBindViewHolder(CustomAdapter.ViewHolder holder, int position) {
- holder.title.setText(my_data.get(position).getTitle());
- holder.author.setText(my_data.get(position).getAuthor());
- holder.year.setText(my_data.get(position).getYear());
- }
- @Override
- public int getItemCount() {
- return my_data.size();
- }
- public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
- public TextView title, author, year;
- public ViewHolder(View itemView) {
- super(itemView);
- title = (TextView) itemView.findViewById(R.id.title);
- author = (TextView) itemView.findViewById(R.id.author);
- year = (TextView) itemView.findViewById(R.id.year);
- itemView.setOnClickListener(this);
- }
- @Override
- public void onClick(View v) {
- Intent intent = new Intent(context, ViewFiles.class);
- Bundle extras = new Bundle();
- extras.putInt("position", getAdapterPosition());
- intent.putExtras(extras);
- /*
- int i=getAdapterPosition();
- intent.putExtra("position", getAdapterPosition());*/
- context.startActivity(intent);
- Toast.makeText(CustomAdapter.context, "you have clicked Row " + getAdapterPosition(), Toast.LENGTH_LONG).show();
- }
- }
- public class ViewFiles extends AppCompatActivity {
- RecyclerView recyclerView;
- RecyclerView.LayoutManager layoutManager;
- RecyclerView.Adapter adapter;
- List<Research> data_list;
- DbHelper db;
- Session session;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_view_files);
- session = new Session(this);
- if (!session.loggedin()) {
- session.setLoggedin(false);
- startActivity(new Intent(ViewFiles.this, Login.class));
- db = new DbHelper(this);
- data_list = new ArrayList<Research>();
- data_list = db.getAllResearch();
- recyclerView = (RecyclerView) findViewById(R.id.recycler_view1);
- recyclerView.setHasFixedSize(true);
- layoutManager = new LinearLayoutManager(this);
- recyclerView.setLayoutManager(layoutManager);
- adapter = new CustomAdapter(this, data_list);
- recyclerView.setAdapter(adapter);
- }}}
- E/RecyclerView: No adapter attached; skipping layout
- E/Surface: getSlotFromBufferLocked: unknown buffer: 0xee934ca0
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