我尝试了所有可能的情况，但都没有解决，需要建议。
public class WolfActivity extends ActionBarActivity {
EditText fname_ele,lname_ele,email_ele,phone_ele,pwd_ele,fax_ele,addr_ele,addr1_ele,city_ele,zipcode_ele,facility_ele,state_ele;
String fname,lname,email,phone,pwd,fax,addr,addr1,city,zipcode,facility,state;
Button button;
AlertDialog alertDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
fname_ele=(EditText) findViewById(R.id.first_name);
lname_ele=(EditText) findViewById(R.id.last_name);
email_ele=(EditText) findViewById(R.id.email);
button=(Button) findViewById(R.id.submit_button);
phone_ele=(EditText) findViewById(R.id.phone);
addr_ele=(EditText) findViewById(R.id.address);
addr1_ele=(EditText) findViewById(R.id.address1);
fax_ele=(EditText) findViewById(R.id.fax);
facility_ele=(EditText) findViewById(R.id.facility);
zipcode_ele=(EditText) findViewById(R.id.zip);
city_ele=(EditText) findViewById(R.id.city);
state_ele=(EditText) findViewById(R.id.state);
/* Spinner dropdown = (Spinner)findViewById(R.id.state);
String[] items = new String[]{"1", "2", "3" };
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, items);
dropdown.setAdapter(adapter);*/
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
fname=fname_ele.getText().toString();
lname=lname_ele.getText().toString();
email=email_ele.getText().toString();
pwd=pwd_ele.getText().toString();
phone=phone_ele.getText().toString();
addr=addr_ele.getText().toString();
addr1=addr1_ele.getText().toString();
fax=fax_ele.getText().toString();
facility=facility_ele.getText().toString();
zipcode=zipcode_ele.getText().toString();
city=city_ele.getText().toString();
state=state_ele.getText().toString();
Log.d("Email",email);
if (!isValidEmail(email)) {
Toast.makeText(WolfActivity.this, "Enter valid email", Toast.LENGTH_SHORT).show();
} else
new signmeup().execute();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
private boolean isValidEmail(String email) {
String EMAIL_PATTERN = "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"+"[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
Pattern pattern = Pattern.compile(EMAIL_PATTERN);
Matcher matcher = pattern.matcher(email);
return matcher.matches();
}
class signmeup extends AsyncTask<String, String, String> {
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(WolfActivity.this);
pDialog.setMessage("Thanks for your Sign up...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
}
@Override
protected String doInBackground(String... arg0) {
// TODO Auto-generated method stub
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("section","user"));
params.add(new BasicNameValuePair("action","new"));
params.add(new BasicNameValuePair("first_name",fname));
params.add(new BasicNameValuePair("last_name",lname));
params.add(new BasicNameValuePair("email",email));
params.add(new BasicNameValuePair("phone",phone));
params.add(new BasicNameValuePair("fax",fax));
params.add(new BasicNameValuePair("address",addr));
params.add(new BasicNameValuePair("address1",addr1));
params.add(new BasicNameValuePair("facility",facility));
params.add(new BasicNameValuePair("password",pwd));
params.add(new BasicNameValuePair("zip",zipcode));
params.add(new BasicNameValuePair("city",city));
// getting JSON Object
// Note that create product url accepts POST method
JSONObject json = jsonParser.makeHttpRequest("http://eastendwebsolutions.com/wf/ws/", "GET", params);
Log.d("First Name",fname);
Log.d("Last Name",lname);
Log.d("Email",email);
// check log cat for response
Log.d("Create Response", json.toString());
// check for success tag
try {
String success = json.getString("success");
if (email != null & success == "true") {
Toast.makeText(WolfActivity.this, "Youre Email Posted..",
Toast.LENGTH_SHORT).show();
} else {
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
@SuppressWarnings("deprecation")
//@Override
protected void onPostExecute(String file_url) {
if(pDialog.isShowing()){
pDialog.dismiss();
}
AlertDialog.Builder builder=new AlertDialog.Builder(WolfActivity.this);
builder.setTitle("Info");
builder.setMessage("You have been subscribed to the HHI Vacation Directory Mailing List. Check email to confirm.");
builder.setIcon(R.drawable.app_icon);
builder.create().show();
}
}
}
pwd=pwd_ele.getText().toString();这一行引起了问题，因为pwd_ele没有被初始化。 - ρяσѕρєя K