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 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
| public class RecyclerActivity extends AppCompatActivity { private String[] names={"第1章 Android基础入门","第2章 Android常见界面布局","第3章 Android常见界面布局","第4章 程序活动单元Activity" ,"第5章 数据存储","第6章 内容提供者","第7章 广播机制","第8章 服务","第9章 网络编程","第10章 综合项目"}; private int[] icons={R.drawable.exercises_bg_1,R.drawable.exercises_bg_2,R.drawable.exercises_bg_3,R.drawable.exercises_bg_4, R.drawable.exercises_bg_1,R.drawable.exercises_bg_2,R.drawable.exercises_bg_3,R.drawable.exercises_bg_4, R.drawable.exercises_bg_1,R.drawable.exercises_bg_2}; private String[] introduces={"共计5题","共计5题","共计5题","共计5题","共计5题","共计5题","共计5题","共计5题","共计5题","共计5题"}; private String[] numbers={"1","2","3","4","5","6","7","8","9","10"}; RecyclerView mRecyclerView; HomeAdapter mAdapter; @RequiresApi(api = Build.VERSION_CODES.O) @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mRecyclerView = findViewById(R.id.id_recyclerview); mRecyclerView.setLayoutManager(new LinearLayoutManager(this)); mAdapter = new HomeAdapter(); mRecyclerView.setAdapter(mAdapter); setTitle(" 移动开发设计习题");
} public void myClick(View view) { int position = mRecyclerView.getChildAdapterPosition(view); Toast.makeText(RecyclerActivity.this,names[position],Toast.LENGTH_LONG).show(); } class HomeAdapter extends RecyclerView.Adapter<HomeAdapter.MyViewHolder> {
@NonNull @Override public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
return new MyViewHolder(LayoutInflater.from(RecyclerActivity.this).inflate(R.layout.recyler_item, parent, false)); }
public void onBindViewHolder(MyViewHolder holder, int position) { holder.name.setText(names[position]); holder.iv.setImageResource(icons[position]); holder.indroduce.setText(introduces[position]); holder.number.setText(numbers[position]); }
public int getItemCount() { return names.length; }
class MyViewHolder extends RecyclerView.ViewHolder { TextView name; ImageView iv; TextView indroduce; TextView number; MyViewHolder(View view) { super(view); name = view.findViewById(R.id.name); iv = view.findViewById(R.id.iv); indroduce = view.findViewById(R.id.introduce); number=view.findViewById(R.id.number);
} } }
}
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