因此,我计划制作一个列表视图,如果单击其中一个项目,它将转到其他活动。很明显,我想使用带有附加功能的意图。
但在我的代码中,额外内容并没有引用。我试图用精确的值来引用额外的东西,它起作用了,但是如果我把额外的东西用来引用我的对象/变量,它就不起作用了。
到目前为止,我的代码是这样的
public class bulan extends ListActivity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tagihan_list);
Intent i = getIntent();
final String no_pel = i.getStringExtra("no_pel");
List<NameValuePair> pairs = new ArrayList<NameValuePair>();
pairs.add(new BasicNameValuePair("nopel", no_pel));
ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();
JSON json = new JSON();
JSONObject jobj = json.getJSON("http://10.0.2.2/KP/tagihan.php", pairs);
try {
int length = jobj.getInt("panjang");
for(int n = 1; n <= length; n++){
String m = Integer.toString(n);
JSONObject row = jobj.getJSONObject(m);
String id_tagihan = "No. tagihan : " + row.getString("id");
String bulan = row.getString("bulan");
String tahun = row.getString("tahun");
String tagihan = "Rp. " + row.getString("tagihan");
String status = row.getString("status");
HashMap<String, String> map = new HashMap<String, String>();
map.put("id_tagihan", id_tagihan);
map.put("bulan", bulan);
map.put("tahun", tahun);
map.put("tagihan", tagihan);
map.put("status", status);
list.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
ListAdapter adapter = new SimpleAdapter(this, list, R.layout.list,
new String[] {"id_tagihan","bulan","tahun","tagihan","status"}, new int[] {
R.id.id_tagihan, R.id.bulan, R.id.tahun, R.id.tagihan, R.id.status});
setListAdapter(adapter);
ListView lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
String sid = ((TextView) view.findViewById(R.id.id_tagihan)).getText().toString();
String snopel = no_pel;
Intent i = new Intent(bulan.this, rincian.class);
i.putExtra("id", sid);
i.putExtra("no_pel", snopel);
startActivity(i);
}
});
}
}
就像我之前解释的,就是这部分
Intent i = new Intent(bulan.this, rincian.class);
i.putExtra("id", sid);
i.putExtra("no_pel", snopel);
startActivity(i);
如果我这样写它们会改变我的代码工作
Intent i = new Intent(bulan.this, rincian.class);
i.putExtra("id", "00001");
i.putExtra("no_pel", "0620120001");
startActivity(i);