经过长时间的互联网搜索，我找不到任何解决方案来满足我的要求。 我有一个数组列表，它被传递到对话框片段，但我的要求是： 当用户选择日期时，它再次调用Web服务并根据数据获取另一个数据并传递相同的对话框片段。我怎样才能做到这一点？我试过静态值，但它没有清除值。我的代码是：
public static class DatePickerDialogFragment extends DialogFragment implements
DatePickerDialog.OnDateSetListener
{
String userName;
public interface UserUserIdListener {
void updateIdUserName(String userName);
}
public static final int FLAG_START_DATE = 0;
public static final int FLAG_END_DATE = 1;
public static List<Orederlist>reportorderIdList=new ArrayList<>();
// private List<Userlist> reportUserList = new ArrayList<>();
private int flag = 0;
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Calendar calendar = Calendar.getInstance();
int year = calendar.get(Calendar.YEAR);
int month = calendar.get(Calendar.MONTH);
int day = calendar.get(Calendar.DAY_OF_MONTH);
return new DatePickerDialog(getActivity(), this, year, month, day);
}
public void setFlag(int i) {
flag = i;
}
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
Calendar calendar = Calendar.getInstance();
Calendar calendar1=Calendar.getInstance();
calendar1.set(year, monthOfYear, dayOfMonth);
calendar.set(year, monthOfYear, dayOfMonth);
String reportOrderIds="";
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
if (flag == FLAG_START_DATE) {
textviewFromDate.setText(format.format(calendar.getTime()));
fromDateReport=textviewFromDate.getText().toString();
JSONObject pieObject = new JSONObject();
try
{
pieObject.put("fromDate",""+fromDateReport);
pieObject.put("orderId",""+reportOrderIds);
pieObject.put("password",""+sPrefs.getString(Constants.PASSWORD,""));
pieObject.put("toDate",""+toDateReport);
pieObject.put("user",""+sPrefs.getString(Constants.USER_NAME,""));
pieObject.put("subUser",""+reportSubUsers);
progressDialog = new ProgressDialog(getContext());
progressDialog.setMessage("Loading....");
progressDialog.setCancelable(false);
progressDialog.show();
} catch (Exception e)
{
e.printStackTrace();
}
// String TAG = "delivered";
RequestQueue requestQueue = Volley.newRequestQueue(getContext());
JsonObjectRequest jsOnbjRequest = new
JsonObjectRequest(Request.Method.POST,
Constants.GetSummarizedReports, pieObject,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response)
{
progressDialog.dismiss();
try {
JSONArray jsonArray = (JSONArray) response.get("orderlist");
{
if (jsonArray.length()>0)
{
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject json = jsonArray.getJSONObject(i);
// Integer name = json.optInt();
String name = json.optString("orderId").toString();
Orederlist user = new Orederlist(name);
user.setOrderId(name);
reportorderIdList.add(user);
}}
}
} catch (Exception e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
progressDialog.dismiss();
}
}) {
@Override
public String getBodyContentType() {
return "application/json";
}
};
jsOnbjRequest.setRetryPolicy(new DefaultRetryPolicy(500000,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
requestQueue.add(jsOnbjRequest);
} else if (flag == FLAG_END_DATE) {
textviewToDate.setText(format.format( calendar1.getTime()));
toDateReport= textviewToDate.getText().toString();
JSONObject pieObject = new JSONObject();
try
{
pieObject.put("fromDate",""+fromDateReport);
pieObject.put("orderId",""+reportOrderIds);
pieObject.put("password",""+sPrefs.getString(Constants.PASSWORD,""));
pieObject.put("toDate",""+toDateReport);
pieObject.put("user",""+sPrefs.getString(Constants.USER_NAME,""));
pieObject.put("subUser",""+reportSubUsers);
progressDialog = new ProgressDialog(getContext());
progressDialog.setMessage("Loading....");
progressDialog.setCancelable(false);
progressDialog.show();
} catch (Exception e)
{
e.printStackTrace();
}
// String TAG = "delivered";
RequestQueue requestQueue = Volley.newRequestQueue(getContext());
JsonObjectRequest jsOnbjRequest = new
JsonObjectRequest(Request.Method.POST,
Constants.GetSummarizedReports, pieObject,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response)
{
progressDialog.dismiss();
try {
JSONArray jsonArray = (JSONArray) response.get("orderlist");
{
if (jsonArray.length()>0)
{
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject json = jsonArray.getJSONObject(i);
// Integer name = json.optInt();
String name = json.optString("orderId").toString();
Orederlist user = new Orederlist(name);
user.setOrderId(name);
reportorderIdList.add(user);
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
progressDialog.dismiss();
}
}) {
@Override
public String getBodyContentType() {
return "application/json";
}
};
jsOnbjRequest.setRetryPolicy(new DefaultRetryPolicy(500000,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
requestQueue.add(jsOnbjRequest);
}
}
}
和对话框片段传递数据是：
FragmentManager managerOrderIds = getSupportFragmentManager();
UserJobIds dialogOrderIds = new UserJobIds();
dialogOrderIds.setdata(orderIdList,reportorderIdList);//with static array list which is not claer the value
dialogOrderIds.show(managerOrderIds, "Dialog");
答案 0 :(得分：0)
你可以做的只是创建一个newInstance of Dialog Fragment为其分配数据，然后调用show（）。下面是一个例子。
public class D2Fragment extends DialogFragment {
private ArrayList<String> list;
public static D2Fragment getInstanceFor(ArrayList<String> list){
D2Fragment d2Fragment=new D2Fragment();
d2Fragment.list=list;
return d2Fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.item_dialog, container,
false);
getDialog().setTitle("DialogFragment Sample");
Log.e("size",list.size()+"");// Here is the list
// Do something else
return rootView;
}
}
显示对话框时。
ArrayList<String> list=new ArrayList<>();
list.add("Val1");
list.add("Val2");
D2Fragment d2Fragment=D2Fragment.getInstanceFor(list);
d2Fragment.show(getSupportFragmentManager(),"dialog2");
或只需为您的数据创建一个setter。
public class D2Fragment extends DialogFragment {
private ArrayList<String> list;
public void setData(ArrayList<String> list){
this.list=list;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.item_dialog, container,
false);
getDialog().setTitle("DialogFragment Sample");
Log.e("size",list.size()+"");// Here is the list
// Do something else
return rootView;
}
}
并显示Dialog。
ArrayList<String> list = new ArrayList<>();
list.add("Val1");
list.add("Val2");
D2Fragment d2Fragment = new D2Fragment();
d2Fragment.setData(list);
d2Fragment.show(getSupportFragmentManager(), "dialog2");
在活动中，您始终可以找到您在交易时分配的特定DialgFragment标签。
Fragment fragment=getSupportFragmentManager().findFragmentByTag("dialog2");
if(fragment!=null && fragment instanceof D2Fragment){
((D2Fragment)fragment).call();// You can call any public method of this dialog fragment here
}