Basically I have an async task that runs to populate a listView. When I try and set the onitemclick for the listView to launch a new activity I can not:
[HIGH]public class GetBreweryStatisticsJSON extends AsyncTask
<String, Void, String> {
Context c;
public GetBreweryStatisticsJSON(Context context)
{
c = context;
}
@Override
protected String doInBackground(String... arg0) {
// TODO Auto-generated method stub
return readJSONFeed(arg0[0]);
}
protected void onPostExecute(String result){
//decode json here
try{
JSONArray jsonArray = new JSONArray(result);
//acces listview
ListView lv = (ListView) ((Activity) c).findViewById(R.id.yourBreweryStatistics);
//make array list for beer
final List<BreweryInfo> tasteList = new ArrayList<BreweryInfo>();
for(int i = 0; i < jsonArray.length(); i++) {
String brewery = jsonArray.getJSONObject(i).getString("brewery");
String rate = jsonArray.getJSONObject(i).getString("rate");
String breweryID = jsonArray.getJSONObject(i).getString("id");
int count = i + 1;
brewery = count + ". " + brewery;
Log.d("brewery stats" , brewery);
//create object
BreweryInfo tempTaste = new BreweryInfo(brewery, breweryID, rate);
//add to arraylist
tasteList.add(tempTaste);
//add items to listview
BreweryInfoAdapter adapter1 = new BreweryInfoAdapter(c ,R.layout.brewer_stats_listview, tasteList);
lv.setAdapter(adapter1);
//set up clicks
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
BreweryInfo o=(BreweryInfo)arg0.getItemAtPosition(arg2);
String bID = o.breweryID;
Intent i = new Intent(c, BreweryPage2.class);
i.putExtra("beerID", bID);
startActivity(i);
}
});
}
}
catch(Exception e){
}
}
public String readJSONFeed(String URL) {
StringBuilder stringBuilder = new StringBuilder();
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(URL);
try {
HttpResponse response = httpClient.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) {
HttpEntity entity = response.getEntity();
InputStream inputStream = entity.getContent();
BufferedReader reader = new BufferedReader(
new InputStreamReader(inputStream));
String line;
while ((line = reader.readLine()) != null) {
stringBuilder.append(line);
}
inputStream.close();
} else {
Log.d("JSON", "Failed to download file");
}
} catch (Exception e) {
Log.d("readJSONFeed", e.getLocalizedMessage());
}
return stringBuilder.toString();
}
}[/HIGH]
It keeps saying:
The method startActivity(Intent) is undefined for the type new AdapterView.OnItemClickListener(){}
[HIGH]public class GetBreweryStatisticsJSON extends AsyncTask
<String, Void, String> {
Context c;
public GetBreweryStatisticsJSON(Context context)
{
c = context;
}
@Override
protected String doInBackground(String... arg0) {
// TODO Auto-generated method stub
return readJSONFeed(arg0[0]);
}
protected void onPostExecute(String result){
//decode json here
try{
JSONArray jsonArray = new JSONArray(result);
//acces listview
ListView lv = (ListView) ((Activity) c).findViewById(R.id.yourBreweryStatistics);
//make array list for beer
final List<BreweryInfo> tasteList = new ArrayList<BreweryInfo>();
for(int i = 0; i < jsonArray.length(); i++) {
String brewery = jsonArray.getJSONObject(i).getString("brewery");
String rate = jsonArray.getJSONObject(i).getString("rate");
String breweryID = jsonArray.getJSONObject(i).getString("id");
int count = i + 1;
brewery = count + ". " + brewery;
Log.d("brewery stats" , brewery);
//create object
BreweryInfo tempTaste = new BreweryInfo(brewery, breweryID, rate);
//add to arraylist
tasteList.add(tempTaste);
//add items to listview
BreweryInfoAdapter adapter1 = new BreweryInfoAdapter(c ,R.layout.brewer_stats_listview, tasteList);
lv.setAdapter(adapter1);
//set up clicks
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
BreweryInfo o=(BreweryInfo)arg0.getItemAtPosition(arg2);
String bID = o.breweryID;
Intent i = new Intent(c, BreweryPage2.class);
i.putExtra("beerID", bID);
startActivity(i);
}
});
}
}
catch(Exception e){
}
}
public String readJSONFeed(String URL) {
StringBuilder stringBuilder = new StringBuilder();
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(URL);
try {
HttpResponse response = httpClient.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) {
HttpEntity entity = response.getEntity();
InputStream inputStream = entity.getContent();
BufferedReader reader = new BufferedReader(
new InputStreamReader(inputStream));
String line;
while ((line = reader.readLine()) != null) {
stringBuilder.append(line);
}
inputStream.close();
} else {
Log.d("JSON", "Failed to download file");
}
} catch (Exception e) {
Log.d("readJSONFeed", e.getLocalizedMessage());
}
return stringBuilder.toString();
}
}[/HIGH]
It keeps saying:
The method startActivity(Intent) is undefined for the type new AdapterView.OnItemClickListener(){}