3

我有一个点击事件连接到我的列表视图,如图所示。

int[] GenusListIDs = { R.id.txt_ID, R.id.txt_Genus, R.id.txt_Count };
        SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.genusitem, cursor_genuslist, service.GenusListColumns, GenusListIDs);

        ListView list_Genus = (ListView)findViewById(R.id.list_Genus);
        list_Genus.setAdapter(adapter);
        list_Genus.setOnItemClickListener(new OnItemClickListener(){
            @Override
            public void onItemClick(AdapterView parent, View view, int position, long id)
            {
                try
                {
                    Log.println(1, "ItemClick", view.toString());
                    TextView tv = (TextView)view;
                    String genus = (String) tv.getText();
                    Intent i = new Intent(getBaseContext(), Cat_Species.class);//new Intent(this, Total.class);
                    /*view
                    i.putExtra("id", id);*/
                    startActivity(i);
                }
                catch(Exception ex)
                {
                    Log.println(1, "item-click-event", ex.getMessage());
                }
            }
        });

我需要根据他们单击的列表项将字符串参数传递给新意图。我要传递的值在名为 txt_Genus 的列表项中。如何从列表项中获取该值以传递给意图?请不要关注我的实验哈哈。

4

1 回答 1

5

这应该这样做。

TextView tv = (TextView)view.findViewById(R.id.txt_Genius);
String genus = tv.getText().toString();

然后把它放到intent extras中,我想你已经知道这一点了。

i.putExtra("genius", genius);

编辑;

在您的新活动中,您将访问意图并获取附加包。然后,您可以访问您在先前活动的意图中放置的任何内容,如下所示;

Bundle extras = getIntent().getExtras();
String genius = extras.getString("genius");
// pop some toast to show the value of genius - not required but shows it works :) 
Toast.makeText(this, "Genius value: " + genius, Toast.LENGTH_SHORT).show();
于 2010-07-18T01:13:08.300 回答