圖片完全不顯示，數(shù)字完全錯(cuò)誤

public?class?MainActivity?extends?AppCompatActivity?{
????private?ListView?lv1;
????private?SimpleAdapter?simpleAdaper;
????private?List<Map<String,?Object>>?dataList;
????private?String[]?context?=?{"第一行",?"第二行",?"第三行",?"第四行",};

????@Override
????protected?void?onCreate(Bundle?savedInstanceState)?{
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.activity_main);
????????lv1?=?(ListView)?findViewById(R.id.listview_1);
????????dataList=new?ArrayList<Map<String,?Object>>();
????????simpleAdaper=new?SimpleAdapter(this,getData(),R.layout.layout1,new?String[]{"pic","text"},new?int[]{
????????????R.id.textview_1,?R.id.imageview_1});
????????lv1.setAdapter(simpleAdaper);
????}
????private?List<Map<String,?Object>>?getData(){
????????for?(int?i=0;i<20;i++){
????????Map<String,Object>?map=new?HashMap<String,?Object>();
????????????map.put("pic",R.mipmap.ic_launcher);
????????????map.put("text","吃屎"+i);
????????????dataList.add(map);
????????}
??return?dataList;
????}