public class Test2 extends Activity {
private ListView lv;
private ImageView logout,leftclosed,rightclosed,back,leftclosedadmin,rightclosedadmin,home;
private JSONObject json;
private ArrayList<Object> Item;
private Context mContext;
private SharedPreferences mSharedPreferencesWrite;
private CommonClass mCommonClass = new CommonClass();
public String category_name,category_id,product_id,product_name;
public StockAdapter adapter;
public ActivityBean bean;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.xstockdetails);
lv=(ListView)findViewById(R.id.stockdetails_listview);
lv.setVerticalFadingEdgeEnabled(false);
Item=new ArrayList<Object>();
class AsyncLogin extends AsyncTask<Void, Void, String>
{
ProcessDialog dialog = null;
public String doInBackground(Void... params)
{
try {
String strURL = mContext.getResources().getString(
R.string.STOCK_DETAILS);
ArrayList<NameValuePair> mNameValuePair = new ArrayList<NameValuePair>();
mNameValuePair
.add(new BasicNameValuePair("action", "getstock"));
mNameValuePair.add(new BasicNameValuePair("collection_by",
mSharedPreferencesWrite
.getString(Constant.LOGIN_SHARED.LS_USERID, "")
.toString().trim()));
String result = mCommonClass.PostConnection(strURL,
mNameValuePair);
if (result != null) {
try {
JSONObject jsonstockdetails = new JSONObject(result);
if (jsonstockdetails.getString(
Constant.COMMON_JSON.TYPE).equals(
Constant.COMMON_JSON.OK)) {
JSONObject jsonReturnResult = jsonstockdetails
.getJSONObject("ReturnResult");
// Log.i("Result", "got result" + jsonReturnResult);
// Log.i(Constant.TAG,"Return Result :--- "+jsonReturnResult.names().toString());
JSONArray jsonArray = jsonReturnResult.names();
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonOBJName = jsonReturnResult
.getJSONObject(jsonArray.getString(i)
.toString());
Log.i("jsonOBJName", "mil gaye in tesing"
+ jsonOBJName);
category_id = jsonOBJName
.getString("category_id");
category_name = jsonOBJName
.getString("category_name");
product_id = jsonOBJName
.getString("product_id");
product_name = jsonOBJName
.getString("product_name");
Log.i("categories", "in testing!!"
+ category_id + category_name
+ product_id);
AddObjectToList(category_id,category_name,product_id,product_name);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
}
catch(Exception e)
{
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String result)
{
dialog.cancel();
adapter=new StockAdapter(Test2.this,Item);
lv.setAdapter(adapter);
}
protected void onPreExecute()
{
super.onPreExecute();
/*dialog.setMessage("Loading....Please Wait");
dialog.setCancelable(true);
dialog.show();*/
dialog = new ProcessDialog(getApplicationContext(), "Loading..", "");
}
}
if (mCommonClass.CheckNetwork(this)) {
AsyncLogin al = new AsyncLogin();
al.execute();
}else{
Log.i("Alert!!!", "Server not Found");
}
}
private void AddObjectToList(String category_id,String category_name,String product_id,String product_name)
{
bean =new ActivityBean();
bean.setCategoryid(category_id);
bean.setCategory_name(category_name);
bean.setProductId(product_id);
bean.setProductName(product_name);
Item.add(bean);
}
public class StockAdapter extends BaseAdapter{
ArrayList<Object> Aitem;
List<ActivityBean> yourList = null;
Activity context;
LayoutInflater li;
public StockAdapter(Activity parent,ArrayList<Object> item){
this.context = parent;
this.Aitem = item;
this.li=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return Aitem.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return Aitem.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
class ViewHolder
{
Button b1,b3,btndelete;
TextView tv0,tv1,tv2,tv3;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
final ViewHolder hv;
if(convertView==null)
{
hv=new ViewHolder();
convertView=li.inflate(R.layout.xstockdetailsadapter,null);
hv.tv0 = (TextView) convertView.findViewById(R.id.categoryname_txt);
hv.tv1 = (TextView) convertView.findViewById(R.id.textView1);
hv.tv2 = (TextView) convertView.findViewById(R.id.textView2);
hv.tv3 = (TextView) convertView.findViewById(R.id.textView3);
convertView.setTag(hv);
}else {
hv=(ViewHolder)convertView.getTag();
final ActivityBean ab = (ActivityBean) Aitem.get(position);
hv.tv0.setText(ab.getCategory_name());
hv.tv1.setText(ab.getCategoryid());
hv.tv2.setText(ab.getProductId());
hv.tv3.setText(ab.getProductName());
}
return convertView;
}
}
}
我使用此代码使用 Asynctask 在列表视图中获取数据，但出现以下错误，谁能帮助我？{
08-09 11:59:34.174: E/AndroidRuntime(6180): FATAL EXCEPTION: main
08-09 11:59:34.174: E/AndroidRuntime(6180): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ovte.letsrecycle/com.ovte.letsrecycle.Test2}: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.app.ActivityThread.access$600(ActivityThread.java:141)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.os.Handler.dispatchMessage(Handler.java:99)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.os.Looper.loop(Looper.java:137)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.app.ActivityThread.main(ActivityThread.java:5041)
08-09 11:59:34.174: E/AndroidRuntime(6180): at java.lang.reflect.Method.invokeNative(Native Method)
08-09 11:59:34.174: E/AndroidRuntime(6180): at java.lang.reflect.Method.invoke(Method.java:511)
08-09 11:59:34.174: E/AndroidRuntime(6180): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
08-09 11:59:34.174: E/AndroidRuntime(6180): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
08-09 11:59:34.174: E/AndroidRuntime(6180): at dalvik.system.NativeStart.main(Native Method)
08-09 11:59:34.174: E/AndroidRuntime(6180): Caused by: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.view.ViewRootImpl.setView(ViewRootImpl.java:571)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:246)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.app.Dialog.show(Dialog.java:281)
08-09 11:59:34.174: E/AndroidRuntime(6180): at com.ovte.letsrecycle.ProcessDialog.<init>(ProcessDialog.java:19)
08-09 11:59:34.174: E/AndroidRuntime(6180): at com.ovte.letsrecycle.Test2$1AsyncLogin.onPreExecute(Test2.java:143)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.os.AsyncTask.execute(AsyncTask.java:534)
08-09 11:59:34.174: E/AndroidRuntime(6180): at com.ovte.letsrecycle.Test2.onCreate(Test2.java:149)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.app.Activity.performCreate(Activity.java:5104)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
08-09 11:59:34.174: E/AndroidRuntime(6180): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
08-09 11:59:34.174: E/AndroidRuntime(6180): ... 11 more
}