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这是我第一次使用 eclipse for android，我想知道如何从 listview 中获取值并将其发送到另一个活动；session类似的东西c#

我想这样做，当我在列表视图中选择一个项目并将其发送到另一个活动时

listview1.setOnItemClickListener(new android.widget.AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
/*some code to save data in MainActivity*/
Intent in = new Intent(MainActivity.this,Order.class);
startActivity(in);
}});

并在另一个活动的另一个列表视图中显示它；

array_list=new String[7];
/*array_list[0]= *something to get data from MainActivity* */
ListView lv = (ListView) findViewById(R.id.listViewMakanan);
ArrayAdapter adapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1,array_list);
lv.setAdapter(adapter);

编辑：这是我在 MainActivity 中的数组字符串：

private String array_list[];

array_list=new String[7];
array_list[0]="Nasi Gr Seafood";
array_list[1]="Nasi Gr Magelangan";
array_list[2]="Cap Cay Goreng";
array_list[3]="Cap Cay Kuah";
array_list[4]="Sapi Cabe Hijau";
array_list[5]="Iga Lada Hitam";
array_list[6]="Sapo Tahu Ayam";

我用它把我的数组放在 ListView 中：

ListView lv = (ListView) findViewById(R.id.listview1);
        ArrayAdapter adapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
        lv.setAdapter(adapter);
4

2 回答 2

0

Make it like this.

listview1.setOnItemClickListener(new android.widget.AdapterView.OnItemClickListener() {
  public void onItemClick(AdapterView<?> parent, View view,int position, long id) {

   Toast.makeText(getApplicationContext(), array_list[position], Toast.LENGTH_LONG).show();
   /*some code to save data in MainActivity*/
      Intent in = new Intent(MainActivity.this,Order.class);
             in.putExtra("ListValue", array_list[position]);    
             startActivity(in);
      }});

In your Order.class

   //to get the value from the MainActivity.this.
    String value= getIntent().getExtras().getString("ListValue");

Hope this will help you.

于 2013-07-04T06:38:14.993 回答
0

You can use Intent to pass the data between Activities.

Second Solution:

You can use public static Arraylist<String> MyArraylist in your MainActivity & you can access it in another Activity as MainActivity.MyArraylist.

于 2013-07-04T06:39:50.703 回答