ProgressDialog loading;
Context ctx;
AlertDialog alertDialog;
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
progress.setMessage("Please Wait");
progress.setMessage("Please Wait");
//progress.requestWindowFeature(Window.FEATURE_NO_TITLE);
//progress.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
progress.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
progress.setProgressStyle(ProgressDialog.STYLE_SPINNER);
progress.show();
alertDialog=new AlertDialog.Builder(ctx).create();
alertDialog.setTitle("Invalid Information");
}
public BackgroundTask(Context ctx) {
// TODO Auto-generated constructor stub
this.ctx=ctx;
progress = new ProgressDialog(this.ctx);
}
@Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
//http://getdoctor.comlu.com/findDoctorConnect%20.php
String reg_url="http://finddoctor.site88.net//registerf.php";
String login_url="http://finddoctor.site88.net//loginf.php";
String Appointment_url="http://finddoctor.site88.net//userappointef.php";
String info_url="http://finddoctor.site88.net//updatef.php";
String confirm_url="http://finddoctor.site88.net//actionf.php";
String security="http://finddoctor.site88.net//securityf.php";
String doctorTiming="http://finddoctor.site88.net//profile1f.php";
String method=params[0];
if(method.equals("register"))
{
String type=params[1];
String YourName=params[2];
String regNum=params[3];
String fatherName=params[4];
String gender=params[5];
String mobileNumber=params[6];
String password=params[7];
String specialist=params[8];
String rating=params[9];
String area=params[10];
String building=params[11];
String room=params[12];
String cityy=params[13];
String address=params[14];
confirmmobile=mobileNumber;
try {
URL url=new URL(reg_url);
HttpURLConnection connection=(HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
OutputStream OS=connection.getOutputStream();
BufferedWriter bufferedWriter=new BufferedWriter(new OutputStreamWriter(OS));
String Data=URLEncoder.encode("type","UTF-8")+"="+URLEncoder.encode(type,"UTF-8")+"&"+
URLEncoder.encode("YourName","UTF-8")+"="+URLEncoder.encode(YourName,"UTF-8")+"&"+
URLEncoder.encode("regNum","UTF-8")+"="+URLEncoder.encode(regNum,"UTF-8")+"&"+
URLEncoder.encode("fatherName","UTF-8")+"="+URLEncoder.encode(fatherName,"UTF-8")+"&"+
URLEncoder.encode("gender","UTF-8")+"="+URLEncoder.encode(gender,"UTF-8")+"&"+
URLEncoder.encode("mobileNumber","UTF-8")+"="+URLEncoder.encode(mobileNumber,"UTF-8")+"&"+
URLEncoder.encode("password","UTF-8")+"="+URLEncoder.encode(password,"UTF-8")+"&"+
URLEncoder.encode("specialist","UTF-8")+"="+URLEncoder.encode(specialist,"UTF-8")+"&"+
URLEncoder.encode("rating","UTF-8")+"="+URLEncoder.encode(rating,"UTF-8")+"&"+
URLEncoder.encode("area","UTF-8")+"="+URLEncoder.encode(area,"UTF-8")+"&"+
URLEncoder.encode("building","UTF-8")+"="+URLEncoder.encode(building,"UTF-8")+"&"+
URLEncoder.encode("room","UTF-8")+"="+URLEncoder.encode(room,"UTF-8")+"&"+
URLEncoder.encode("cityy","UTF-8")+"="+URLEncoder.encode(cityy,"UTF-8")+"&"+
URLEncoder.encode("address","UTF-8")+"="+URLEncoder.encode(address,"UTF-8");
bufferedWriter.write(Data);
bufferedWriter.flush();
bufferedWriter.close();
OS.close();
InputStream IS=connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(IS));
String line;
StringBuilder builder = new StringBuilder();
while((line=reader.readLine()) != null)
builder.append(line);
IS.close();
return builder.toString();
}
catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else if(method.equals("login")) {
MobileNumber = params[1];
password = params[2];
try {
URL url = new URL(login_url);
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("POST");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
OutputStream outputStream = urlConnection.getOutputStream();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));
String data = URLEncoder.encode("MobileNumber", "UTF-8") + "=" + URLEncoder.encode(MobileNumber, "UTF-8") + "&" +
URLEncoder.encode("password", "UTF-8") + "=" + URLEncoder.encode(password, "UTF-8");
bufferedWriter.write(data);
bufferedWriter.flush();
bufferedWriter.close();
outputStream.close();
InputStream inputStream = urlConnection.getInputStream();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, "iso-8859-1"));
while ((linee = bufferedReader.readLine()) != null) {
response += linee;
}
bufferedReader.close();
inputStream.close();
urlConnection.disconnect();
return response;
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else if(method.equals("Appointment")){
String name=params[1];
String dphone=params[2];
String pphone=params[3];
String patientname=params[4];
try {
URL url=new URL(Appointment_url);
HttpURLConnection connection=(HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
OutputStream OS=connection.getOutputStream();
BufferedWriter bufferedWriter=new BufferedWriter(new OutputStreamWriter(OS));
String Data=URLEncoder.encode("nameq","UTF-8")+"="+URLEncoder.encode(name,"UTF-8")+"&"+
URLEncoder.encode("number","UTF-8")+"="+URLEncoder.encode(dphone,"UTF-8")+"&"+
URLEncoder.encode("usernumber","UTF-8")+"="+URLEncoder.encode(pphone, "UTF-8")+"&"+
URLEncoder.encode("name","UTF-8")+"="+URLEncoder.encode(patientname, "UTF-8");
bufferedWriter.write(Data);
bufferedWriter.flush();
bufferedWriter.close();
OS.close();
InputStream IS=connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(IS));
String line;
StringBuilder builder = new StringBuilder();
while((line=reader.readLine()) != null)
builder.append(line);
IS.close();
return builder.toString();
}
catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else if(method.equals("info")){
String area=params[1];
String building=params[2];
String room=params[3];
String passmobile=params[4];
String floor=params[5];
String city=params[6];
try {
URL url=new URL(info_url);
HttpURLConnection connection=(HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
OutputStream OS=connection.getOutputStream();
BufferedWriter bufferedWriter=new BufferedWriter(new OutputStreamWriter(OS));
String Data=URLEncoder.encode("area","UTF-8")+"="+URLEncoder.encode(area,"UTF-8")+"&"+
URLEncoder.encode("building","UTF-8")+"="+URLEncoder.encode(building,"UTF-8")+"&"+
URLEncoder.encode("room","UTF-8")+"="+URLEncoder.encode(room, "UTF-8")+"&"+
URLEncoder.encode("passmobile","UTF-8")+"="+URLEncoder.encode(passmobile, "UTF-8")+"&"+
URLEncoder.encode("Floor","UTF-8")+"="+URLEncoder.encode(floor, "UTF-8")+"&"+
URLEncoder.encode("city","UTF-8")+"="+URLEncoder.encode(city, "UTF-8");
bufferedWriter.write(Data);
bufferedWriter.flush();
bufferedWriter.close();
OS.close();
InputStream IS=connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(IS));
String line;
StringBuilder builder = new StringBuilder();
while((line=reader.readLine()) != null)
builder.append(line);
IS.close();
return builder.toString();
}
catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else if(method.equals("confirm")){
String time=params[1];
String date=params[2];
String identifier=params[3];
try {
URL url=new URL(confirm_url);
HttpURLConnection connection=(HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
OutputStream OS=connection.getOutputStream();
BufferedWriter bufferedWriter=new BufferedWriter(new OutputStreamWriter(OS));
String Data=URLEncoder.encode("time","UTF-8")+"="+URLEncoder.encode(time,"UTF-8")+"&"+
URLEncoder.encode("date","UTF-8")+"="+URLEncoder.encode(date,"UTF-8")+"&"+
URLEncoder.encode("identifier","UTF-8")+"="+URLEncoder.encode(identifier, "UTF-8");
bufferedWriter.write(Data);
bufferedWriter.flush();
bufferedWriter.close();
OS.close();
InputStream IS=connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(IS));
String line;
StringBuilder builder = new StringBuilder();
while((line=reader.readLine()) != null)
builder.append(line);
IS.close();
return builder.toString();
}
catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else if(method.equals("security")) {
String code=params[1];
String mobileNumber=params[2];
try {
URL url=new URL(security);
HttpURLConnection urlConnection=(HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("POST");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
OutputStream outputStream=urlConnection.getOutputStream();
BufferedWriter bufferedWriter=new BufferedWriter(new OutputStreamWriter(outputStream,"UTF-8"));
String data=URLEncoder.encode("code","UTF-8")+"="+URLEncoder.encode(code,"UTF-8")+"&"+
URLEncoder.encode("mobileNumber","UTF-8")+"="+URLEncoder.encode(mobileNumber, "UTF-8");;
bufferedWriter.write(data);
bufferedWriter.flush();
bufferedWriter.close();
outputStream.close();
InputStream inputStream=urlConnection.getInputStream();
BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(inputStream,"iso-8859-1"));
while ((linee = bufferedReader.readLine())!=null ) {
response+=linee;
}
bufferedReader.close();
inputStream.close();
urlConnection.disconnect();
return response;
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else if(method.equals("doctortimming")){
String STH=params[1];
String STM=params[2];
String ETH=params[3];
String ETM=params[4];
String MobileNumber=params[5];
String day1=params[6];
String day2=params[7];
String duration=params[8];
try {
URL url=new URL(doctorTiming);
HttpURLConnection connection=(HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
OutputStream OS=connection.getOutputStream();
BufferedWriter bufferedWriter=new BufferedWriter(new OutputStreamWriter(OS));
String Data=URLEncoder.encode("STH","UTF-8")+"="+URLEncoder.encode(STH,"UTF-8")+"&"+
URLEncoder.encode("STM","UTF-8")+"="+URLEncoder.encode(STM,"UTF-8")+"&"+
URLEncoder.encode("ETH","UTF-8")+"="+URLEncoder.encode(ETH, "UTF-8")+"&"+
URLEncoder.encode("ETM","UTF-8")+"="+URLEncoder.encode(ETM, "UTF-8")+"&"+
URLEncoder.encode("MobileNumber","UTF-8")+"="+URLEncoder.encode(MobileNumber, "UTF-8")+"&"+
URLEncoder.encode("day1","UTF-8")+"="+URLEncoder.encode(day1, "UTF-8")+"&"+
URLEncoder.encode("day2","UTF-8")+"="+URLEncoder.encode(day2, "UTF-8")+"&"+
URLEncoder.encode("duration","UTF-8")+"="+URLEncoder.encode(duration, "UTF-8");
bufferedWriter.write(Data);
bufferedWriter.flush();
bufferedWriter.close();
OS.close();
InputStream IS=connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(IS));
String line;
StringBuilder builder = new StringBuilder();
while((line=reader.readLine()) != null)
builder.append(line);
IS.close();
return builder.toString();
}
catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return null;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
alertDialog.setMessage(result);
alertDialog.show();
if (result.endsWith("Registration complete")) {
Intent ia =new Intent(ctx,Confirm.class);
ia.putExtra("PERSON_NAME", confirmmobile);
ctx.startActivity(ia);
Toast.makeText(ctx, "code is send to you mobile ",Toast.LENGTH_LONG).show();
}
else if(result.endsWith("already found")){
alertDialog.setMessage("This mobile number is already used");
alertDialog.show();
}
else if(result.endsWith("something wrong")){
alertDialog.setMessage("Some fields Missing");
alertDialog.show();
}
else if(result.endsWith("appointment sent")){
Toast.makeText(ctx,"Request is send to the Doctor",Toast.LENGTH_LONG).show();
Intent ia =new Intent(ctx,UserDashboard.class);
ctx.startActivity(ia);
}
else if(result.endsWith("2 appointment taken")){
alertDialog.setMessage("You can not take more then 3 appointments");
alertDialog.show();
}
else if(result.endsWith("complete")){
alertDialog.setMessage("Successfully Updated");
alertDialog.show();
}
else if (result.endsWith("doctor")) {
Intent doctor=new Intent(ctx,Doctor_Profile.class);
doctor.putExtra("PERSON_NAME", MobileNumber);
ctx.startActivity(doctor);
}
else if (result.endsWith("user")) {
Intent doctor=new Intent(ctx,UserDashboard.class);
ctx.startActivity(doctor);
Toast.makeText(ctx, "user is here",Toast.LENGTH_LONG).show();
doctor.putExtra("PERSON_NAME", MobileNumber);
ctx.startActivity(doctor);
}
else if (result.endsWith("Username or Password is incorrect")) {
Toast.makeText(ctx, result,Toast.LENGTH_LONG).show();
}
else if (result.endsWith("success")) {
Intent ia =new Intent(ctx,MainActivity.class);
ctx.startActivity(ia);
Toast.makeText(ctx, "Login here",Toast.LENGTH_LONG).show();
}
else if (result.endsWith("invalid")) {
Toast.makeText(ctx, "The code you entered is not valid",Toast.LENGTH_LONG).show();
}
else if (result.endsWith("security")) {
Intent ia =new Intent(ctx,Confirm.class);
ia.putExtra("PERSON_NAME", MobileNumber);
ctx.startActivity(ia);
//Toast.makeText(ctx, "The code you entered is not valid",Toast.LENGTH_LONG).show();
}
progress.hide();
}
这是我的后台任务。如果互联网不可用，我的应用程序崩溃了。我在getsystemservices上使用了很多技术，但由于它是非活动类，因此无法访问。请给我一些建议。
答案 0 :(得分：0)
我遇到异常，doInBackground返回null。你需要在onPostExecute上检查它，我们你将崩溃工作一个零点异常