在我的onPostExecute()应用程序中从Web服务获取值时，我无法调用Android。我在下面添加了代码。返回ArrayList后线程退出。你能检查我的代码中是否有任何问题吗？
public class searchuser extends AsyncTask<Void, Void,ArrayList<DeleteuserDetails>>{
protected ArrayList<DeleteuserDetails> doInBackground(Void... arg0) {
// TODO Auto-generated method stub
path.setNamespace();
path.setMethod_name("searchuser");
path.setSoap_action();
path.setUrl();
selecteduserType=String.valueOf(utype.getSelectedItem());
userid=edtTxtUserId.getText().toString();
if(!String.valueOf(utype.getSelectedItem()).equals("select")){
Webservice service=new Webservice(path.getNamespace(), path.getMethod_name(), path.getUrl(), path.getSoap_action());
try{
SoapObject searchUser=service.getRequest();
PropertyInfo search_userid=new PropertyInfo();
search_userid.setName("userID");
search_userid.setValue(userid);
searchUser.addProperty(search_userid);
/* PropertyInfo search_utype=new PropertyInfo();
search_utype.setName("utype");
search_utype.setValue(selecteduserType);
searchUser.addProperty(search_utype);*/
SoapSerializationEnvelope envelope = service.getEnvelope(searchUser);
SoapObject response = service.getResponse(envelope);
int count = response.getPropertyCount();
for (int i = 0; i < count; i++) {
SoapObject result = (SoapObject) response.getProperty(i);
DeleteuserDetails deleteuserDetails=new DeleteuserDetails();
if(result.getPropertyAsString(4)!=null){
deleteuserDetails.setUserId(result.getPropertyAsString(4));
}
else{
}
if(result.getPropertyAsString(2)!=null){
deleteuserDetails.setUserName(result.getPropertyAsString(2));
}
else{
}
if(result.getPropertyAsString(3)!=null){
deleteuserDetails.setUserRole(result.getPropertyAsString(3));
}
if(result.getPropertyAsString(1)!=null){
deleteuserDetails.setCreatedDate(result.getPropertyAsString(1));
}
else{
}
try {
deleteuserDetails.setCreatedBy(result.getPropertyAsString(0).toString());
}
catch(NullPointerException npe) {
deleteuserDetails.setCreatedBy("null");
}
userdetail.add(deleteuserDetails);
}
}
catch(Exception e){
e.printStackTrace();
}
}
else{
alertbox.generateAlert(Deleteuser.this, "Please select usertype", "Default value Selected", R.drawable.noicon);
}
return userdetail;
}
protected void onPostExecute( ArrayList<DeleteuserDetails>deleteuserDetails) {
deleteuserList = new TextView[deleteuserDetails.size()];
for(int i=0;i<deleteuserDetails.size();i++){
TableRow deleteUserRow=new TableRow(Deleteuser.this);
deleteUserRow.setId(i);
deleteUserRow.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
selectcheck = new CheckBox(Deleteuser.this);
selectcheck.setId(i);
selectcheck.setTag(i);
deleteUserRow.addView(selectcheck);
deleteuserList[i]=new TextView(Deleteuser.this);
// deleteuserList[i].setId(i);
deleteuserList[i].setTag(i);
deleteuserList[i].setText(deleteuserDetails.get(i).getUserId());
deleteUserRow.addView(deleteuserList[i]);
uName=new TextView(Deleteuser.this);
uName.setId(i);
uName.setText(deleteuserDetails.get(i).getUserName());
deleteUserRow.addView(uName);
Userrole=new TextView(Deleteuser.this);
Userrole.setId(i);
Userrole.setPadding(20, 0, 0, 0);
Userrole.setText(deleteuserDetails.get(i).getUserRole());
deleteUserRow.addView(Userrole);
CreatedDate=new TextView(Deleteuser.this);
CreatedDate.setId(i);
CreatedDate.setPadding(20, 0, 0, 0);
CreatedDate.setText(deleteuserDetails.get(i).getCreatedDate());
deleteUserRow.addView(CreatedDate);
CreatedBy=new TextView(Deleteuser.this);
CreatedBy.setId(i);
CreatedBy.setPadding(20, 0, 0, 0);
CreatedBy.setText(deleteuserDetails.get(i).getCreatedBy());
deleteUserRow.addView(CreatedBy);
userdetailTable.addView(deleteUserRow,
new TableLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
selectcheck.setOnClickListener(listener);
Log.i("Exception",""+i);
}
TableRow addcomponentrow=new TableRow(Deleteuser.this);
addcomponentrow.setId(200);
addcomponentrow.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
Button Deletecomponentbtn=new Button(Deleteuser.this);
Deletecomponentbtn.setText("Delete");
Deletecomponentbtn.setId(200);
Deletecomponentbtn.setPadding(10, 0, 20, 2);
Deletecomponentbtn.setBackgroundColor(color.red);
addcomponentrow.addView(Deletecomponentbtn);
userdetailTable.addView(addcomponentrow,new TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
Deletecomponentbtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new DeleteUserid().execute(checkedValue);
}
});
}
final OnClickListener listener=new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int index = (Integer) v.getTag();
checkedValue=(String) deleteuserList[index].getText();
}
};
}
答案 0 :(得分：2)
更改
protected void onPostExecute( ArrayList<DeleteuserDetails>deleteuserDetails) {
// ^^^
到
@Override
protected void onPostExecute( ArrayList<DeleteuserDetails> deleteuserDetails) {
// your code here...
答案 1 :(得分：0)
按如下方式初始化此DeleteuserDetails：
DeleteuserDetails deleteuserDetails = new DeleteuserDetails();
声明String变量并赋值
String userId = "";
String userName = "";
String userRole = "";
String createdDate = "";
String createdBy = "";
在Model中，生成构造函数如下：
DeleteuserDetails(String userId, String userName, String userRole, String createdDate, String createdBy) {
this.userId = userId;
this.userName = userName;
this.userRole = userRole;
this.createdDate = createdDate;
this.createdBy = createdBy;
}
现在，您在doInBackground(..)
if (result.getPropertyAsString(4) != null)
userId = result.getPropertyAsString(4);
if (result.getPropertyAsString(2) != null)
userName = result.getPropertyAsString(2);
if (result.getPropertyAsString(3) != null)
userRole = result.getPropertyAsString(3);
if (result.getPropertyAsString(1) != null)
createdDate = result.getPropertyAsString(1);
if (result.getPropertyAsString(0) != null)
createdBy = result.getPropertyAsString(0);
deleteuserDetails = new DeleteuserDetails(userId, userName, userRole, createdDate, createdBy);
userdetail.add(deleteuserDetails);
现在在onPostExecute（）方法中添加runOnUiThread()方法，然后按照以下步骤操作：
runOnUiThread(new Runnable() {
@Override
public void run() {
deleteuserList = new TextView[deleteuserDetails.size()];
for(int i=0;i<deleteuserDetails.size();i++){
TableRow deleteUserRow=new TableRow(Deleteuser.this);
deleteUserRow.setId(i);
deleteUserRow.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
selectcheck = new CheckBox(Deleteuser.this);
selectcheck.setId(i);
selectcheck.setTag(i);
deleteUserRow.addView(selectcheck);
deleteuserList[i]=new TextView(Deleteuser.this);
// deleteuserList[i].setId(i);
deleteuserList[i].setTag(i);
deleteuserList[i].setText(deleteuserDetails.get(i).getUserId());
deleteUserRow.addView(deleteuserList[i]);
uName=new TextView(Deleteuser.this);
uName.setId(i);
uName.setText(deleteuserDetails.get(i).getUserName());
deleteUserRow.addView(uName);
Userrole=new TextView(Deleteuser.this);
Userrole.setId(i);
Userrole.setPadding(20, 0, 0, 0);
Userrole.setText(deleteuserDetails.get(i).getUserRole());
deleteUserRow.addView(Userrole);
CreatedDate=new TextView(Deleteuser.this);
CreatedDate.setId(i);
CreatedDate.setPadding(20, 0, 0, 0);
CreatedDate.setText(deleteuserDetails.get(i).getCreatedDate());
deleteUserRow.addView(CreatedDate);
CreatedBy=new TextView(Deleteuser.this);
CreatedBy.setId(i);
CreatedBy.setPadding(20, 0, 0, 0);
CreatedBy.setText(deleteuserDetails.get(i).getCreatedBy());
deleteUserRow.addView(CreatedBy);
userdetailTable.addView(deleteUserRow,
new TableLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
selectcheck.setOnClickListener(listener);
Log.i("Exception",""+i);
}
TableRow addcomponentrow=new TableRow(Deleteuser.this);
addcomponentrow.setId(200);
addcomponentrow.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
Button Deletecomponentbtn=new Button(Deleteuser.this);
Deletecomponentbtn.setText("Delete");
Deletecomponentbtn.setId(200);
Deletecomponentbtn.setPadding(10, 0, 20, 2);
Deletecomponentbtn.setBackgroundColor(color.red);
addcomponentrow.addView(Deletecomponentbtn);
userdetailTable.addView(addcomponentrow,new TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
Deletecomponentbtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new DeleteUserid().execute(checkedValue);
}
});
}
final OnClickListener listener=new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int index = (Integer) v.getTag();
checkedValue=(String) deleteuserList[index].getText();
}
};
}
});
}