我有一个活动，其中添加了两个Tabs，即frag1和frag2。在frag1中，我发送服务器请求并向用户显示进度对话框，但在“解雇”对话框中出现错误。我怎样才能实现这个问题。
错误代码： -
java.lang.IllegalArgumentException: View=com.android.internal.policy.impl.PhoneWindow$DecorView{4274d0d8 V.E..... R......D 0,0-456,144} not attached to window manager
Frag1对话框代码： -
private void postDealListingDatatoServer() {
try {
String json;
// 3. build jsonObject
final JSONObject jsonObject = new JSONObject();// making object of Jsons.
jsonObject.put("agentCode", m_szMobileNumber);// put mobile number
jsonObject.put("pin", m_szEncryptedPassword);// put password
Log.e(TAG, "Intial Record Count::" + sz_RecordCount);
Log.e(TAG, "Intial Last Count::" + sz_LastCount);
// 4. convert JSONObject to JSON to String
json = jsonObject.toString();// convert Json object to string
Log.i(TAG, "Server Request:-" + json);
m_Dialog = DialogUtils.showProgressDialog(getActivity(), "Loading...");
final String m_DealListingURL = "http://202.131.144.132:8080//getDealListInJSON";
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, m_DealListingURL, jsonObject, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.i(TAG, "Server Response:-" + response);
if (m_Dialog != null && m_Dialog.isShowing()) {
m_Dialog.dismiss();
}
try {
int nResultCodeFromServer = Integer.parseInt(response.getString("resultcode"));
if (nResultCodeFromServer == m_TRANSACTION_SUCCESSFUL) {
JSONArray posts = response.optJSONArray("dealList");// get Deal list in array from response
s_oDataset.clear();
for (int i = 0; i < posts.length(); i++) {// loop for counting deals from server
JSONObject post = posts.getJSONObject(i);// counting deal based on index
item = new CDealAppDatastorage();// creating object of DealAppdata storage
item.setM_szHeaderText(post.getString("dealname"));// get deal name from response
item.setM_szsubHeaderText(post.getString("dealcode"));// get dealcode from response
item.setM_szDealValue(post.getString("dealvalue"));// get deal value from response
item.setM_n_Image(m_n_FormImage[i]);//set Image Index wise(Dummy)
s_oDataset.add(item);// add all items in ArrayList
}
if (!s_oDataset.isEmpty()) {// condition if data in arraylist is not empty
m_oAdapter = new CDealAppListingAdapter(getActivity(), s_oDataset);// create adapter object and add arraylist to adapter
m_ListView.setAdapter(m_oAdapter);//adding adapter to recyclerview
m_NoInternetWarning.setVisibility(View.GONE);
mSwipeRefresh.setVisibility(View.VISIBLE);
} else {
m_ListView.removeFooterView(mFooter);// else Load buttonvisibility set to Gone
}
}
if (nResultCodeFromServer == m_kCONNECTION_LOST) {//server based conditions
CSnackBar.getInstance().showSnackBarError(m_Main.findViewById(R.id.mainLayout), "Connection Lost !", getActivity());
} else if (nResultCodeFromServer == m_kDEAL_NOT_FOUND) {// serevr based conditions .....
CSnackBar.getInstance().showSnackBarError(m_Main.findViewById(R.id.mainLayout), "No more deals available", getActivity());
} else if (nResultCodeFromServer == m_kTECHNICAL_FAILURE) {
CSnackBar.getInstance().showSnackBarError(m_Main.findViewById(R.id.mainLayout), "Technical Failure", getActivity());
} else if (nResultCodeFromServer == m_kTIMED_OUT) {
CSnackBar.getInstance().showSnackBarError(m_Main.findViewById(R.id.mainLayout), "Timed Out", getActivity());
} else if (nResultCodeFromServer == m_kUNKNOWN_ERROR) {
CSnackBar.getInstance().showSnackBarError(m_Main.findViewById(R.id.mainLayout), "Unknown Error", getActivity());
} else if (nResultCodeFromServer == m_kALREADY_AVAIL_BENEFIT) {
CSnackBar.getInstance().showSnackBarError(m_Main.findViewById(R.id.mainLayout), "You have already avail the benefit of this deal", getActivity());
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Server error:-" + error);
if (m_Dialog != null && m_Dialog.isShowing()) {
m_Dialog.dismiss();
}
if (error instanceof TimeoutError) {
CSnackBar.getInstance().showSnackBarError(m_Main.findViewById(R.id.mainLayout), "Connection lost ! Please try again", getActivity());
mSwipeRefresh.setVisibility(View.GONE);
m_NoInternetWarning.setVisibility(View.VISIBLE);
} else if (error instanceof NetworkError) {
CSnackBar.getInstance().showSnackBarError(m_Main.findViewById(R.id.mainLayout), "No internet connection", getActivity());
mSwipeRefresh.setVisibility(View.GONE);
m_NoInternetWarning.setVisibility(View.VISIBLE);
}
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(jsonObjectRequest);
} catch (JSONException e) {
e.printStackTrace();
}
}
这里我在解雇对话框时遇到错误。
DialogUtils类代码： -
public class DialogUtils {
public static ProgressDialog showProgressDialog(Context context, String message) {
ProgressDialog m_Dialog = new ProgressDialog(context);
m_Dialog.setMessage(message);
m_Dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
m_Dialog.setCancelable(false);
m_Dialog.show();
return m_Dialog;
}
}