RecyclerView
ListView
MainActivity:
public class MainActivity extends AppCompatActivity { private RecyclerView recyclerView; private List<String> list= new ArrayList<String>(); private MyAdapter adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); init(); indate(); LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false); recyclerView.setLayoutManager(linearLayoutManager); adapter = new MyAdapter(MainActivity.this,list); recyclerView.setAdapter(adapter); } private void indate() { for (int i = 'a'; i <'z' ; i++) { list.add(Character.toString((char)i)); } } private void init() { recyclerView = (RecyclerView) findViewById(R.id.recycler); } }
1 | <strong>MyAdapter</strong> |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | public class MyAdapter extends RecyclerView.Adapter<MyViewHold> { private LayoutInflater myInflater; private Context context; private List<String> list; public MyAdapter(Context context,List<String> list){ this .context= context; myInflater =LayoutInflater.from(context); this .list = list; } @Override public MyViewHold onCreateViewHolder(ViewGroup parent, int viewType) { View view= myInflater.inflate(R.layout.intem_listview,parent, false ); MyViewHold myViewHold = new MyViewHold(view); return myViewHold; } @Override public void onBindViewHolder(MyViewHold holder, int position) { System.out.println(holder.tv); holder.tv.setText(list.get(position)); } @Override public int getItemCount() { return list.size(); } } class MyViewHold extends RecyclerView.ViewHolder { public TextView tv; public MyViewHold(View itemView) { super (itemView); tv = (TextView) itemView.findViewById(R.id.textView); } } |
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