Question

我正在尝试将一些数据从一个活动传递到一个新活动，但每次我按下列出的项目时，它都会显示已传递的意图，但不会传递信息。 toast弹出窗口显示我正在尝试在新活动之前显示的正确数据。

任何人都可以帮忙。

TimsList.java

public class TimsList extends ListActivity {
int ct_id;
String[] ct_number = null;
String[] ct_address = null;
String[] ct_phone = null;
String[] ct_fax = null;
String[] ct_email = null;
String[] ct_city = null;
String[] ct_province = null;
String[] ct_country = null;
String[] ct_pcode = null;
String[] ct_long = null;
String[] ct_lat = null;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //setContentView(R.layout.main);

    String result = null;
    InputStream is = null;
    StringBuilder sb=null;
    //http post
    try{
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost("http://www.bob.com/app_main_list.php");
        //httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
        HttpResponse response = httpclient.execute(httppost);
        HttpEntity entity = response.getEntity();
        is = entity.getContent();
    }catch(Exception e){
        Log.e("log_tag", "Error in http connection"+e.toString());
    }
    //convert response to string
    try{
        BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
        sb = new StringBuilder();
        sb.append(reader.readLine() + "\n");
        String line="0";
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
        }
        is.close();
        result=sb.toString();
    }catch(Exception e){
        Log.e("log_tag", "Error converting result"+e.toString());
    }
    //paring data

    JSONArray jArray;
    try{
        jArray = new JSONArray(result);
        JSONObject json_data=null;
        ct_number=new String[jArray.length()];
        ct_address=new String[jArray.length()];
        ct_phone=new String[jArray.length()];
        ct_fax=new String[jArray.length()];
        ct_email=new String[jArray.length()];
        ct_city=new String[jArray.length()];
        ct_province=new String[jArray.length()];
        ct_country=new String[jArray.length()];
        ct_pcode=new String[jArray.length()];
        ct_long=new String[jArray.length()];
        ct_lat=new String[jArray.length()];
        for(int i=0;i<jArray.length();i++){
            json_data = jArray.getJSONObject(i);
            ct_id=json_data.getInt("location_id");
            ct_number[i]=json_data.getString("store_number");
            ct_address[i]=json_data.getString("store_address");
            ct_phone[i]=json_data.getString("store_phone");
            ct_fax[i]=json_data.getString("store_fax");
            ct_email[i]=json_data.getString("store_email");
            ct_city[i]=json_data.getString("store_city");
            ct_province[i]=json_data.getString("store_province");
            ct_country[i]=json_data.getString("store_country");
            ct_pcode[i]=json_data.getString("store_pcode");
            ct_long[i]=json_data.getString("store_long");
            ct_lat[i]=json_data.getString("store_lat");
        }
    }
    catch(JSONException e1){
        Toast.makeText(getBaseContext(), "No Addresses Found" ,Toast.LENGTH_LONG).show();
    } catch (ParseException e1) {
        e1.printStackTrace();
    }
    setListAdapter(new
            ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,ct_address));
    ListView lv;
    lv = getListView();
    lv.setTextFilterEnabled(true);
    lv.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> timslist, View view,
                int position, long id) {
            // When clicked, show a toast with the TextView text
            Toast.makeText(getApplicationContext(), ct_phone[position]+" was Clicked", Toast.LENGTH_SHORT).show();

            Intent i = new Intent(getApplicationContext(), TimsListMore.class);
            //i.putExtra("ct_id_pass", "ct_id");
            //i.putExtra("ct_number_pass", "ct_number");
            //i.putExtra("ct_address_pass", "ct_address");
            i.putExtra("ct_phone_pass", "ct_phone");
            //i.putExtra("ct_fax_pass", "ct_fax");
            //i.putExtra("ct_email_pass", "ct_email");
            //i.putExtra("ct_city_pass", "ct_city");
            //i.putExtra("ct_province_pass", "ct_province");
            //i.putExtra("ct_country_pass", "ct_country");
            //i.putExtra("ct_pcode_pass", "ct_pcode");
            //i.putExtra("ct_long_pass", "ct_long");
            //i.putExtra("ct_lat_pass", "ct_lat");
            startActivity(i);
        }
    });
    }
 }

TimsListMore.java

public class TimsListMore extends Activity {

 @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.timslistmore);

        Intent i = getIntent();
        Bundle b = i.getExtras();
        String string1 = b.getString("ct_phone_pass");
        //String string2 = b.getString("ct_id_pass");

        TextView tv1 = (TextView) findViewById(R.id.textview); 
        tv1.setText("" + string1 + "");
 }

}

Answer 1

通过更改

修复

i.putExtra("ct_phone_pass", "ct_phone");

到

i.putExtra("ct_phone_pass", ct_phone[position]);

在活动不工作之间传递数据

1 个答案: