intent几种传值数组、对象、聚合(Array,Object,List)
intent几种传值数组、对象、集合(Array,Object,List)
http://www.cnblogs.com/userbibi/archive/2012/03/29/2423202.html
1.Array
private ArrayList<String> checkList=new ArrayList<String>();
Intent intent=new Intent(mytext.this,show.class);
intent.putStringArrayListExtra("list", checkList);
startActivity(intent);
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调用
Intent intent=this.getIntent();
ArrayList<String> list=intent.getStringArrayListExtra("list");
ArrayList<HashMap<String,String>> mylist=new ArrayList<HashMap< String,String>>();
///listview使用
ListView listview=(ListView)findViewById(R.id.MyListView);
for(int i=0;i<list.size();i++)
{
HashMap<String,String> map=new HashMap<String,String>();
map.put("ItemTitle", list.get(i).toString());
mylist.add(map);
}
SimpleAdapter mSchedule=new SimpleAdapter(this,mylist,R.layout.show,new String[]{"ItemTitle","ItemTitle"},new int[]{R.id.ItemTitle,R.id.ItemTitle});
listview.setAdapter(mSchedule); |
2.对象、列表（object,List）
前面都一样，上遍文章已经讲解，这边补充一下，只讲一个Serializable的。。另一个Parcelable都差不多，各自实现各自的接口，调用的时候可以不用那么麻烦，真心不喜欢用Bundle ,挺多此一举的
改写
如果是List
List<Parking_Info> list=new ArrayList<Parking_Info>();//搜索结果集合
Intent intent=new Intent(LinkMap.this,MapList.class);
intent.putExtra("list", (Serializable)list);
startActivity(intent); |
这边直接强制转化就行了，再接受的时候用(List<Parking_Info>) getIntent().getSerializable("list")就可以接受到List<Parking_Info>数据了
Listlist=(List)getIntent().getSerializableExtra("list");
调用起来倒也方便的
具体调用,遍历代码
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listmain);
// List<Parking_Info> list=(List<Parking_Info>)getIntent().getSerializableExtra("list");
//创建适配器
SimpleAdapter adapter = new SimpleAdapter(this,getData(),R.layout.maplist,
new String[]{"name","kongwei","code","addr"},
new int[]{R.id.name,R.id.kongwei,R.id.code,R.id.addr});
setListAdapter(adapter);
// ListView listview=(ListView)findViewById(R.id.SearchList);
// listview.setAdapter(adapter); };
private List<Map<String, Object>> getData() {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
//获取参数
List<Parking_Info> mylist=(List<Parking_Info>)getIntent().getSerializableExtra("list");
for(int i=0;i<mylist.size();i++)
{
Map<String, Object> map = new HashMap<String, Object>();
map.put("name",mylist.get(i).getPrk_name());
map.put("kongwei","空位:"+mylist.get(i).getKongwei());
map.put("code","收费:"+ mylist.get(i).getCode());
map.put("addr","地址:"+mylist.get(i).getPrk_addr());
list.add(map);
// Toast.makeText(this, mylist.get(5).getPrk_name(), Toast.LENGTH_LONG).show();
}
return list;
}
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