My app crashes, and I am unable to find the error.
I would like it to give me a message saying the network is not connected.
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
public class SimpleForm extends Activity {
private EditText editTextUserName;
private EditText editTextPassword;
//public static final String USER_NAME = "USERNAME";
String username;
String password;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_registeration);
editTextUserName = (EditText) findViewById(R.id.et_username_ID);
editTextPassword = (EditText) findViewById(R.id.et_pass_ID);
}
public void invokeLogin(View view){
username = editTextUserName.getText().toString();
password = editTextPassword.getText().toString();
login(username,password);
}
private void login(final String username, String password) {
class LoginAsync extends AsyncTask<String, Void, String>{
private Dialog loadingDialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
loadingDialog = ProgressDialog.show(SimpleForm .this, "Please wait", "Loading...");
}
@Override
protected String doInBackground(String... params) {
//String uname = params[0];
// String pass = params[1];
JSONObject jsonObject = new JSONObject();
try {
jsonObject.accumulate("username", params[0]);
} catch (JSONException e4) {
// TODO Auto-generated catch block
e4.printStackTrace();
}
try {
jsonObject.accumulate("password", params[1]);
} catch (JSONException e3) {
// TODO Auto-generated catch block
e3.printStackTrace();
}
try {
jsonObject.accumulate("deviceToken", "2324h5gj345gj3h4g5j");
} catch (JSONException e5) {
// TODO Auto-generated catch block
e5.printStackTrace();
}
try {
jsonObject.accumulate("os", "android");
} catch (JSONException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
try {
jsonObject.accumulate("key", "MEu07MgiuWgXwJOo7Oe1aHL0yM8P");
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// 4. convert JSONObject to JSON to String
String dataString = jsonObject.toString();
//String dataString = {"username":"apitest","password":"123456","deviceToken":"2324h5gj345gj3h4g5j34g","os":"andriod","key":"MEu07MgiuWgXwJOo7Oe1aHL0yM8VvP"}
InputStream is = null;
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("data", dataString));
//nameValuePairs.add(new BasicNameValuePair("password", pass));
String result = null;
try{
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(
"http://mobile.betfan.com/api/?action=login");
//http://mobile.betfan.com/api/?action=login
//http://192.168.1.10/mobiletest/process.php
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
result = sb.toString();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return result;
}
protected void onPostExecute(String result){
String s = result.trim();
loadingDialog.dismiss();
JSONObject respObject;
try {
respObject = new JSONObject(s);
String active = respObject.getString("status_message");
if(active.equalsIgnoreCase("success")){
Toast.makeText(getApplicationContext(), s+"Login successfull", Toast.LENGTH_LONG).show();
Intent intent=new Intent(SimpleForm.this,Welcome.class);
startActivity(intent);
// Intent intent = new Intent(MainActivity.this, UserProfile.class);
//intent.putExtra(USER_NAME, username);
// finish();
//startActivity(intent);
}else {
Toast.makeText(getApplicationContext(), "Login Fail", Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
LoginAsync la = new LoginAsync();
la.execute(username, password);
}
@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);
}
}
