Android ListView数据不重复
问题描述：
我想在listview中显示一些数据，但它只显示了上一个位置的数据。这里是我的代码：Android ListView数据不重复
public class ListDetailsActivity extends Activity {
/** Called when the activity is first created. */
private Context con;
private String pos = "";
private ImageView cPhoto;
private TextView cName, aName, aText;
private CacheImageDownloader downloader;
private Bitmap defaultBit;
private ProgressDialog pDialog;
private CityDetailsList CD;
private ListView cList;
private HotelMenuAdapter mAdapter;
private String response = "";
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.detailslayout);
con = this;
initUI();
}
private void initUI() {
// TODO Auto-generated method stub
cName = (TextView) findViewById(R.id.cName);
cList = (ListView) findViewById(R.id.cDetailsView);
aName = (TextView) findViewById(R.id.authorName);
aText = (TextView) findViewById(R.id.authorText);
cPhoto = (ImageView) findViewById(R.id.cPhoto);
downloader = new CacheImageDownloader();
defaultBit = BitmapFactory.decodeResource(getResources(),
R.drawable.attractionpng);
// pos = getIntent().getStringExtra("ID");
PrintLog.myLog("CityDetails :", pos + "main");
updateUI();
}
private void updateUI() {
if (!SharedPreferencesHelper.isOnline(con)) {
AlertMessage.showMessage(con, "Error", "No internet connection");
return;
}
pDialog = ProgressDialog.show(this, "Please wait...", "Loading...",
false, false);
final Thread d = new Thread(new Runnable() {
public void run() {
// TODO Auto-generated method stub
try {
if (AllCityDetailsParser.connect(con, AllURL
.cityGuideDetailsURL())) {
}
} catch (final Exception e) {
// TODO: handle exception
e.printStackTrace();
}
try {
if (CityDetailsParser.connect(con, AllURL
.cityGuideDetailsURL())) {
}
} catch (final Exception e) {
// TODO: handle exception
e.printStackTrace();
}
runOnUiThread(new Runnable() {
public void run() {
// TODO Auto-generated method stub
if (pDialog != null) {
pDialog.cancel();
}
try {
CD = AllCityDetails.getAllCityDetails()
.elementAt(0);
cName.setText(CD.getName().trim());
try {
if (CD.getIcon().length() != 0) {
downloader.download(CD.getIcon().trim(),
cPhoto);
AllConstants.cPhotoLink = CD.getIcon()
.replaceAll(" ", "%20");
}
else {
cPhoto.setImageBitmap(defaultBit);
AllConstants.cPhotoLink = CD.getIcon();
}
} catch (Exception e) {
// TODO: handle exception
}
if (AllCityDetails.getAllCityDetails().size() != 0) {
mAdapter = new HotelMenuAdapter(con);
cList.setAdapter(mAdapter);
PrintLog.myLog("I am in list adapter : ",
"true");
}
} catch (Exception e) {
// TODO: handle exception
}
}
});
}
});
d.start();
}
class HotelMenuAdapter extends ArrayAdapter<CityDetailsList> {
private final Context con;
public HotelMenuAdapter(Context context) {
super(context, R.layout.rowdetails, AllCityDetails
.getAllCityDetails());
con = context;
// TODO Auto-generated constructor stub
}
@Override
public View getView(final int position, View convertView,
ViewGroup parent) {
View v = convertView;
if (v == null) {
final LayoutInflater vi = (LayoutInflater) con
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.rowdetails, null);
}
if (position < AllCityDetails.getAllCityDetails().size()) {
final CityDetailsList r = AllCityDetails
.getCityDetailsList(position);
final TextView aname = (TextView) v
.findViewById(R.id.authorName);
aname.setText(r.getAuthor_name().trim());
final TextView atext = (TextView) v
.findViewById(R.id.authorText);
atext.setText(r.getText().trim());
PrintLog.myLog("authorName : ", r.getAuthor_name() + "!!!");
}
// TODO Auto-generated method stub
return v;
}
}
}
答
使用你的代码这样第一：
final MyProgressDialog progDailog = new MyProgressDialog(
getActivity());
final Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
//set listview adapter here
}
};
new Thread() {
public void run() {
try {
// put your all calling method here..
} catch (Exception e) {
// TODO: handle exception
Log.e("error", ""
+ e.getMessage().toString());
}
handler.sendEmptyMessage(0);
progDailog.dismiss();
}
}.start();
适配器存在许多问题。请尝试这种方式..