Space Apps Challenge 2017

Hi Flyers | Pilots Plus

Lagos

Team Updates

Avigator is aimed to helping people on a flight learn about the geographic, natural, and cultural locations of interest along their flight path

mrdezmondOkeke Desmond
Team Stream Item
mrdezmondOkeke Desmond
-package com.avigator.avigator.activity;
-
-import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.annotation.TargetApi;
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.os.AsyncTask;
-import android.os.Build;
-import android.os.Bundle;
-import android.provider.ContactsContract;
-import android.support.annotation.NonNull;
-import android.support.design.widget.Snackbar;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.Toolbar;
-import android.text.TextUtils;
-import android.view.KeyEvent;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.inputmethod.EditorInfo;
-import android.widget.Button;
-import android.widget.EditText;
-import android.widget.TextView;
-
-import com.avigator.avigator.R;
-
-import static android.Manifest.permission.READ_CONTACTS;
-
-/**
- * A login screen that offers login via email/password.
- */
-public class CoordinatesActivity extends AppCompatActivity {
-
- /**
- * Id to identity READ_CONTACTS permission request.
- */
- private static final int REQUEST_READ_CONTACTS = 0;
-
- /**
- * A dummy authentication store containing known user names and passwords.
- * TODO: remove after connecting to a real authentication system.
- */
- private static final String[] DUMMY_CREDENTIALS = new String[]{
- "foo@example.com:hello", "bar@example.com:world"
- };
- /**
- * Keep track of the login task to ensure we can cancel it if requested.
- */
- private UserLoginTask mAuthTask = null;
-
- // UI references.
-// private AutoCompleteTextView mEmailView;
- private EditText mPasswordView, mEmailView;
- private View mProgressView;
- private View mLoginFormView;
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_coordinates);
- Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
- setSupportActionBar(toolbar);
- // Set up the login form.
- mEmailView = (EditText) findViewById(R.id.departure);
- populateAutoComplete();
-
- mPasswordView = (EditText) findViewById(R.id.arrival);
- mPasswordView.setOnEditorActionListener(new TextView.OnEditorActionListener() {
- @Override
- public boolean onEditorAction(TextView textView, int id, KeyEvent keyEvent) {
- if (id == R.id.login || id == EditorInfo.IME_NULL) {
- attemptLogin();
- return true;
- }
- return false;
- }
- });
-
- Button mEmailSignInButton = (Button) findViewById(R.id.avigate);
- mEmailSignInButton.setOnClickListener(new OnClickListener() {
- @Override
- public void onClick(View view) {
-// attemptLogin();
- Intent intent = new Intent(getApplicationContext(), MapsActivity.class);
- startActivity(intent);
- }
- });
-
-// mLoginFormView = findViewById(R.id.login_form);
-// mProgressView = findViewById(R.id.login_progress);
- }
-
- private void populateAutoComplete() {
- if (!mayRequestContacts()) {
- return;
- }
-
-// getLoaderManager().initLoader(0, null, this);
- }
-
- private boolean mayRequestContacts() {
- if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
- return true;
- }
- if (checkSelfPermission(READ_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
- return true;
- }
- if (shouldShowRequestPermissionRationale(READ_CONTACTS)) {
- Snackbar.make(mEmailView, R.string.permission_rationale, Snackbar.LENGTH_INDEFINITE)
- .setAction(android.R.string.ok, new View.OnClickListener() {
- @Override
- @TargetApi(Build.VERSION_CODES.M)
- public void onClick(View v) {
- requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
- }
- });
- } else {
- requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
- }
- return false;
- }
-
- /**
- * Callback received when a permissions request has been completed.
- */
- @Override
- public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
- @NonNull int[] grantResults) {
- if (requestCode == REQUEST_READ_CONTACTS) {
- if (grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
- populateAutoComplete();
- }
- }
- }
-
-
- /**
- * Attempts to sign in or register the account specified by the login form.
- * If there are form errors (invalid email, missing fields, etc.), the
- * errors are presented and no actual login attempt is made.
- */
- private void attemptLogin() {
- if (mAuthTask != null) {
- return;
- }
-
- // Reset errors.
- mEmailView.setError(null);
- mPasswordView.setError(null);
-
- // Store values at the time of the login attempt.
- String email = mEmailView.getText().toString();
- String password = mPasswordView.getText().toString();
-
- boolean cancel = false;
- View focusView = null;
-
- // Check for a valid password, if the user entered one.
- if (!TextUtils.isEmpty(password) && !isPasswordValid(password)) {
- mPasswordView.setError(getString(R.string.error_invalid_password));
- focusView = mPasswordView;
- cancel = true;
- }
-
- // Check for a valid email address.
- if (TextUtils.isEmpty(email)) {
- mEmailView.setError(getString(R.string.error_field_required));
- focusView = mEmailView;
- cancel = true;
- } else if (!isEmailValid(email)) {
- mEmailView.setError(getString(R.string.error_invalid_email));
- focusView = mEmailView;
- cancel = true;
- }
-
- if (cancel) {
- // There was an error; don't attempt login and focus the first
- // form field with an error.
- focusView.requestFocus();
- } else {
- // Show a progress spinner, and kick off a background task to
- // perform the user login attempt.
- showProgress(true);
- mAuthTask = new UserLoginTask(email, password);
- mAuthTask.execute((Void) null);
- }
- }
-
- private boolean isEmailValid(String email) {
- //TODO: Replace this with your own logic
- return email.contains("@");
- }
-
- private boolean isPasswordValid(String password) {
- //TODO: Replace this with your own logic
- return password.length() > 4;
- }
-
- /**
- * Shows the progress UI and hides the login form.
- */
- @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
- private void showProgress(final boolean show) {
- // On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
- // for very easy animations. If available, use these APIs to fade-in
- // the progress spinner.
- if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
- int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
-
- mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
- mLoginFormView.animate().setDuration(shortAnimTime).alpha(
- show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
- @Override
- public void onAnimationEnd(Animator animation) {
- mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
- }
- });
-
- mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
- mProgressView.animate().setDuration(shortAnimTime).alpha(
- show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
- @Override
- public void onAnimationEnd(Animator animation) {
- mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
- }
- });
- } else {
- // The ViewPropertyAnimator APIs are not available, so simply show
- // and hide the relevant UI components.
- mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
- mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
- }
- }
-
-// @Override
-// public Loader<Cursor> onCreateLoader(int i, Bundle bundle) {
-// return new CursorLoader(this,
-// // Retrieve data rows for the device user's 'profile' contact.
-// Uri.withAppendedPath(ContactsContract.Profile.CONTENT_URI,
-// ContactsContract.Contacts.Data.CONTENT_DIRECTORY), ProfileQuery.PROJECTION,
-//
-// // Select only email addresses.
-// ContactsContract.Contacts.Data.MIMETYPE +
-// " = ?", new String[]{ContactsContract.CommonDataKinds.Email
-// .CONTENT_ITEM_TYPE},
-//
-// // Show primary email addresses first. Note that there won't be
-// // a primary email address if the user hasn't specified one.
-// ContactsContract.Contacts.Data.IS_PRIMARY + " DESC");
-// }
-
-// @Override
-// public void onLoadFinished(Loader<Cursor> cursorLoader, Cursor cursor) {
-// List<String> emails = new ArrayList<>();
-// cursor.moveToFirst();
-// while (!cursor.isAfterLast()) {
-// emails.add(cursor.getString(ProfileQuery.ADDRESS));
-// cursor.moveToNext();
-// }
-//
-// addEmailsToAutoComplete(emails);
-// }
-
-// @Override
-// public void onLoaderReset(Loader<Cursor> cursorLoader) {
-//
-// }
-
-// private void addEmailsToAutoComplete(List<String> emailAddressCollection) {
-// //Create adapter to tell the AutoCompleteTextView what to show in its dropdown list.
-// ArrayAdapter<String> adapter =
-// new ArrayAdapter<>(CoordinatesActivity.this,
-// android.R.layout.simple_dropdown_item_1line, emailAddressCollection);
-//
-// mEmailView.setAdapter(adapter);
-// }
-
-
- private interface ProfileQuery {
- String[] PROJECTION = {
- ContactsContract.CommonDataKinds.Email.ADDRESS,
- ContactsContract.CommonDataKinds.Email.IS_PRIMARY,
- };
-
- int ADDRESS = 0;
- int IS_PRIMARY = 1;
- }
-
- /**
- * Represents an asynchronous login/registration task used to authenticate
- * the user.
- */
- public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {
-
- private final String mEmail;
- private final String mPassword;
-
- UserLoginTask(String email, String password) {
- mEmail = email;
- mPassword = password;
- }
-
- @Override
- protected Boolean doInBackground(Void... params) {
- // TODO: attempt authentication against a network service.
-
- try {
- // Simulate network access.
- Thread.sleep(2000);
- } catch (InterruptedException e) {
- return false;
- }
-
- for (String credential : DUMMY_CREDENTIALS) {
- String[] pieces = credential.split(":");
- if (pieces[0].equals(mEmail)) {
- // Account exists, return true if the password matches.
- return pieces[1].equals(mPassword);
- }
- }
-
- // TODO: register the new account here.
- return true;
- }
-
- @Override
- protected void onPostExecute(final Boolean success) {
- mAuthTask = null;
- showProgress(false);
-
- if (success) {
- finish();
- } else {
- mPasswordView.setError(getString(R.string.error_incorrect_password));
- mPasswordView.requestFocus();
- }
- }
-
- @Override
- protected void onCancelled() {
- mAuthTask = null;
- showProgress(false);
- }
- }
-}
-
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