Web にログインする Android アクティビティを適切にコーディングする方法に関する私の間違いを修正するのを手伝ってください。正常にログインすると、その Web ポータルのコンテンツの表示を開始できますか?
これが私の未完成のコードです。間違いを修正してください。前もって感謝します！
package com.example.weblogin;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
public class LoginActivity extends Activity implements OnClickListener {
private ProgressDialog pDialog; // Progress Dialog
private static final String LOGIN_URL = "http://vo.aimglobalinc.com/control/con_login.asp";
JSONParser jsonParser = new JSONParser(); // JSON parser class
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
private EditText user, pass;
private Button mSubmit, mRegister;
@Override
protected void onCreate(Bundle savedInstanceState) {
//requestWindowFeature(Window.FEATURE_NO_TITLE);
//getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
//WindowManager.LayoutParams.FLAG_FULLSCREEN);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
// get intent data
Intent i1 = getIntent();
// Selected image id
i1.getExtras().getInt("login");
setResult(RESULT_OK, i1);
//setup input fields
user = (EditText)findViewById(R.id.txt_username);
pass = (EditText)findViewById(R.id.txt_password);
//setup buttons
mSubmit = (Button)findViewById(R.id.btn_login);
mRegister = (Button)findViewById(R.id.btn_register);
//register listeners
mSubmit.setOnClickListener(this);
mRegister.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_login:
new AttemptLogin().execute();
break;
case R.id.btn_register:
//Intent i = new Intent(this, RegisterActivity.class);
//startActivity(i);
break;
default:
break;
}
}
class AttemptLogin extends AsyncTask<String, String, String> {
//three methods get called, first preExecture, then do in background, and once do
//in back ground is completed, the onPost execture method will be called.
/**
* Before starting background thread Show Progress Dialog
* */
boolean failure = false;
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(LoginActivity.this);
pDialog.setMessage("Attempting login...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected String doInBackground(String... args) {
// TODO Auto-generated method stub
// Check for success tag
int success;
String username = user.getText().toString();
String password = pass.getText().toString();
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("uname", username));
params.add(new BasicNameValuePair("pword", password));
Log.d("request!", "starting");
// getting product details by making HTTP request
JSONObject json = jsonParser.makeHttpRequest(
LOGIN_URL, "POST", params);
// check your log for json response
Log.d("Login attempt", json.toString());
// json success tag
success = json.getInt(TAG_SUCCESS);
if (success == 1) {
Log.d("Login Successful!", json.toString());
//Toast.makeText(LoginActivity.this, "Login Successful!", Toast.LENGTH_LONG).show();
//Intent i = new Intent(LoginActivity.this, PortalContents.class);
finish();
//startActivity(i);
return json.getString(TAG_MESSAGE);
}else{
Log.d("Login Failure!", json.getString(TAG_MESSAGE));
//Toast.makeText(LoginActivity.this, "Login Fail!", Toast.LENGTH_LONG).show();
return json.getString(TAG_MESSAGE);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog once product deleted
pDialog.dismiss();
if (file_url != null){
Toast.makeText(getApplicationContext(), file_url, Toast.LENGTH_LONG).show();
}
}
}
}