基本按照老師編寫,雖然沒出錯,但是就是顯示不出來???
public class MainActivity extends Activity {
ListView lv;
? SimpleAdapter sa;
? List<Map<String, Object>> list;
?
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv=(ListView) findViewById(R.id.listView1);
lv.setAdapter(sa);
list=new ArrayList<Map<String,Object>>();
sa=new SimpleAdapter(this, getData(), R.layout.main,
new String[]{"imageView1","textView1"},
new int[]{R.id.imageView1,R.id.textView1});
}
public List<Map<String, Object>> getData(){
for(int i=0;i<11;i++){
Map<String, Object> map=new HashMap<String, Object>();
map.put("imageView1", R.drawable.ic_launcher);
map.put("textView1", "hao"+i);
list.add(map);
}
return list;
}
}
2016-06-15
lv.setAdapter(sa);這個放在最后試試
2016-08-11
setadapter要寫在adapter初始化完成之后,不然加載的就是一個空的adapter,當然什么都沒有咯
2016-06-19
如果是自己練習。在適配器這塊最好自己多寫一下,專門寫一個MyAdapter extend ?baseAdapter 或者其他的Adapter
2016-06-15
你注釋都不寫一個,我知道你寫的什么鬼