onny/nextcompanion
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

abstract AsyncTask

Browse source
This commit is contained in:
ikarulus 2019-01-12 17:54:06 +01:00
parent 9cc7ff766b
commit abe95da7d1
3 changed files with 122 additions and 125 deletions
Download patch file Download diff file Expand all files Collapse all files

5
app/src/main/java/com/example/hochi/nextcompanion/AsyncTaskCallbacks.java Normal file
View file

@ -0,0 +1,5 @@
package com.example.hochi.nextcompanion;
interface AsyncTaskCallbacks<T> {
void onTaskComplete(T result);
}

119
app/src/main/java/com/example/hochi/nextcompanion/LoginActivity.java
View file

@ -3,58 +3,34 @@ package com.example.hochi.nextcompanion;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.support.annotation.NonNull;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.AsyncTask;
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Build;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import static android.Manifest.permission.READ_CONTACTS;
/**
* A login screen that offers login via email/password.
*/
public class LoginActivity extends AppCompatActivity {
public class LoginActivity extends AppCompatActivity implements AsyncTaskCallbacks<String> {
/**
* Keep track of the login task to ensure we can cancel it if requested.
*/
private UserLoginTask mAuthTask = null;
private RequestHandler mAuthTask = null;
// UI references.
private TextView mPhoneView;
@ -136,7 +112,7 @@ public class LoginActivity extends AppCompatActivity {
// Show a progress spinner, and kick off a background task to
// perform the user login attempt.
showProgress(true);
mAuthTask = new UserLoginTask(email, password);
mAuthTask = new RequestHandler(email, password, this);
mAuthTask.execute((Void) null);
}
}
@ -182,65 +158,14 @@ public class LoginActivity extends AppCompatActivity {
}
}
/**
* Represents an asynchronous login/registration task used to authenticate
* the user.
*/
public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {
private final String mPhone;
private final String mPin;
UserLoginTask(String phone, String pin) {
mPhone = URLEncoder.encode(phone);
mPin = pin;
}
@Override
protected Boolean doInBackground(Void... params) {
Boolean success = false;
String urlParameters = "apikey=rXXqTgQZUPZ89lzB&mobile=" + mPhone + "&pin=" + mPin;
HttpURLConnection connection = null;
public void onTaskComplete(String response) {
if (!response.isEmpty()) {
try {
//Create connection
URL url = new URL("https://api.nextbike.net/api/login.json");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
connection.setRequestProperty("Content-Length", "" +
Integer.toString(urlParameters.getBytes().length));
connection.setRequestProperty("Content-Language", "en-US");
connection.setUseCaches (false);
connection.setDoInput(true);
connection.setDoOutput(true);
//Send request
DataOutputStream wr = new DataOutputStream (
connection.getOutputStream ());
wr.writeBytes (urlParameters);
wr.flush ();
wr.close ();
//Get Response
InputStream is = connection.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
String line;
StringBuilder response = new StringBuilder();
while((line = rd.readLine()) != null) {
response.append(line);
response.append('\r');
}
rd.close();
try {
JSONObject jObject = new JSONObject(response.toString());
JSONObject jObject = new JSONObject(response);
JSONObject userObject = jObject.getJSONObject("user");
String loginkey = userObject.getString("loginkey");
Log.d("DEBUG", loginkey);
success=true;
SharedPreferences sharedPref = getSharedPreferences("persistence", MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putString("loginKey", loginkey);
@ -248,40 +173,12 @@ public class LoginActivity extends AppCompatActivity {
}
catch (Exception e) {
e.printStackTrace();
success=false;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if(connection != null) {
connection.disconnect();
}
}
return success;
}
@Override
protected void onPostExecute(final Boolean success) {
mAuthTask = null;
showProgress(false);
if (success) {
finish();
} else {
mPinView.setError(getString(R.string.error_incorrect_pin));
mPinView.requestFocus();
}
}
@Override
protected void onCancelled() {
mAuthTask = null;
showProgress(false);
}
}
}

95
app/src/main/java/com/example/hochi/nextcompanion/RequestHandler.java Normal file
View file

@ -0,0 +1,95 @@
package com.example.hochi.nextcompanion;
import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.util.Log;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
public class RequestHandler extends AsyncTask<Void, Void, String> {
private final String mPhone;
private final String mPin;
private AsyncTaskCallbacks<String> callback;
RequestHandler(String phone, String pin, AsyncTaskCallbacks<String> act) {
mPhone = URLEncoder.encode(phone);
mPin = pin;
callback = act;
}
@Override
protected String doInBackground(Void... params) {
StringBuilder response = new StringBuilder();
String urlParameters = "apikey=rXXqTgQZUPZ89lzB&mobile=" + mPhone + "&pin=" + mPin;
HttpURLConnection connection = null;
try {
//Create connection
URL url = new URL("https://api.nextbike.net/api/login.json");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
connection.setRequestProperty("Content-Length", "" +
Integer.toString(urlParameters.getBytes().length));
connection.setRequestProperty("Content-Language", "en-US");
connection.setUseCaches (false);
connection.setDoInput(true);
connection.setDoOutput(true);
//Send request
DataOutputStream wr = new DataOutputStream (
connection.getOutputStream ());
wr.writeBytes (urlParameters);
wr.flush ();
wr.close ();
//Get Response
InputStream is = connection.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
String line;
while((line = rd.readLine()) != null) {
response.append(line);
response.append('\r');
}
rd.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
if(connection != null) {
connection.disconnect();
}
}
return response.toString();
}
@Override
protected void onPostExecute(final String response) {
//mAuthTask = null;
//showProgress(false);
callback.onTaskComplete(response);
}
@Override
protected void onCancelled() {
//mAuthTask = null;
//showProgress(false);
}
}