otbeta/com.iamthefij.otbeta/src/main/java/com/iamthefij/otbeta/LoginActivity.java

610 lines
21 KiB
Java

package com.iamthefij.otbeta;
import android.Manifest;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.location.LocationListener;
import android.location.LocationManager;
import android.support.annotation.NonNull;
import android.support.design.widget.Snackbar;
import android.support.v4.app.ActivityCompat;
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.os.Build;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.text.TextUtils;
import android.util.Log;
import android.util.SparseArray;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
import android.widget.TextView;
import com.iamthefij.otbeta.api.Client;
import com.iamthefij.otbeta.api.Exerciser;
import com.iamthefij.otbeta.api.Location;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import static android.Manifest.permission.READ_CONTACTS;
import static android.Manifest.permission.ACCESS_FINE_LOCATION;
/**
* A login screen that offers login via email/password.
*/
public class LoginActivity extends AppCompatActivity implements LoaderCallbacks<Cursor> {
/**
* Ids to identity permission requests.
*/
private static final int REQUEST_READ_CONTACTS = 0;
private static final int REQUEST_ACCESS_FINE_LOCATION = 1;
/**
* Keep track of the login task to ensure we can cancel it if requested.
*/
private UserLoginTask mAuthTask = null;
// UI references.
private Spinner mLocationView;
private AutoCompleteTextView mEmailView;
private EditText mPasswordView;
private View mProgressView;
private View mLoginFormView;
private Client mClient;
private Exerciser mExerciser;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
// Initialize client
mClient = new Client(this);
// Set up the login form.
mLocationView = (Spinner) findViewById(R.id.location);
populateLocationList();
mEmailView = (AutoCompleteTextView) findViewById(R.id.email);
populateAutoComplete();
mPasswordView = (EditText) findViewById(R.id.password);
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.email_sign_in_button);
mEmailSignInButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
attemptLogin();
}
});
mLoginFormView = findViewById(R.id.login_form);
mProgressView = findViewById(R.id.login_progress);
}
private void populateAutoComplete() {
if (!mayRequestContacts()) {
return;
}
getLoaderManager().initLoader(0, null, this);
}
private void populateLocationList() {
LocationListFetcher locationListFetcher = new LocationListFetcher();
locationListFetcher.execute();
}
private void sortLocationList() {
if (!mayRequestLocation()) {
return;
}
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
final LocationSpinnerAdapter locationSpinnerAdapter = (LocationSpinnerAdapter) mLocationView.getAdapter();
if (locationSpinnerAdapter != null && !locationSpinnerAdapter.isEmpty() && !locationSpinnerAdapter.isSorted()) {
final LocationManager locationManager = (LocationManager) getApplicationContext().getSystemService(LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, new BasicLocationListener(locationSpinnerAdapter, locationManager));
android.location.Location currentLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (currentLocation != null) {
locationSpinnerAdapter.sortByDistance(currentLocation.getLatitude(), currentLocation.getLongitude());
}
}
}
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.contact_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;
}
private boolean mayRequestLocation() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
return true;
}
if (checkSelfPermission(ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
return true;
}
if (shouldShowRequestPermissionRationale(ACCESS_FINE_LOCATION)) {
Snackbar.make(mLocationView, R.string.location_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[]{ACCESS_FINE_LOCATION}, REQUEST_ACCESS_FINE_LOCATION);
}
});
} else {
requestPermissions(new String[]{ACCESS_FINE_LOCATION}, REQUEST_ACCESS_FINE_LOCATION);
}
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();
}
} else if (requestCode == REQUEST_ACCESS_FINE_LOCATION) {
if (grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
sortLocationList();
}
}
}
/**
* 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();
Location location = (Location) mLocationView.getSelectedItem();
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, location);
mAuthTask.execute((Void) null);
}
}
private boolean isEmailValid(String email) {
return email.contains("@");
}
private boolean isPasswordValid(String password) {
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.
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);
}
});
}
@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<>(LoginActivity.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;
private final Location mLocation;
private Exerciser mTempExerciser;
UserLoginTask(String email, String password, Location location) {
mEmail = email;
mPassword = password;
mLocation = location;
}
@Override
protected Boolean doInBackground(Void... params) {
mTempExerciser = mClient.login(mEmail, mPassword, mLocation);
return (mTempExerciser != null);
}
@Override
protected void onPostExecute(final Boolean success) {
mAuthTask = null;
showProgress(false);
if (success) {
mExerciser = this.mTempExerciser;
launchMainActivity();
} else {
mPasswordView.setError(getString(R.string.error_incorrect_password));
mPasswordView.requestFocus();
}
}
@Override
protected void onCancelled() {
mAuthTask = null;
showProgress(false);
}
}
/**
* Launches the main activity after an exerciser is retrieved
*/
private void launchMainActivity() {
if (mExerciser != null) {
ExerciserStore exerciserStore = new ExerciserStore(this);
exerciserStore.saveExerciser(mExerciser);
Intent nextIntent = new Intent(LoginActivity.this, WorkoutListActivity.class);
startActivity(nextIntent);
finish();
}
}
/**
* Represents an asynchronous task to retrieve locations from the api and populate
* the location spinner
*/
private class LocationListFetcher extends AsyncTask<Void, Void, Boolean> {
private final android.location.Location mCurrentLocation;
private List<Location> mLocations;
public LocationListFetcher() {
mCurrentLocation = null;
mLocations = null;
}
public LocationListFetcher(android.location.Location currentLocation) {
mCurrentLocation = currentLocation;
}
@Override
protected Boolean doInBackground(Void... params) {
mLocations = mClient.getLocationsWithDetail();
return (mLocations != null);
}
@Override
protected void onPostExecute(Boolean success) {
super.onPostExecute(success);
if (success) {
LocationSpinnerAdapter locationSpinnerAdapter = new LocationSpinnerAdapter(mLocations);
mLocationView.setAdapter(locationSpinnerAdapter);
if (mCurrentLocation != null) {
locationSpinnerAdapter.sortByDistance(mCurrentLocation.getLatitude(), mCurrentLocation.getLongitude());
}
sortLocationList();
}
}
}
/**
* Adapter to show locations in spinner
*/
private class LocationSpinnerAdapter extends BaseAdapter implements SpinnerAdapter {
private final List<Location> mLocations;
private boolean mSorted;
public boolean isSorted() {
return mSorted;
}
public LocationSpinnerAdapter(List<Location> locations) {
mLocations = locations;
mSorted = false;
}
@Override
public int getCount() {
return mLocations.size();
}
@Override
public Object getItem(int position) {
return mLocations.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
TextView text;
if (convertView != null) {
text = (TextView) convertView;
} else {
text = (TextView) getLayoutInflater().inflate(
android.R.layout.simple_dropdown_item_1line,
parent,
false
);
}
text.setTextColor(Color.BLACK);
text.setText(mLocations.get(position).getName());
return text;
}
/**
* Sorts the locations in the list by distance from a given point
*
* @param lat latitude of current location to calculate distance from
* @param lon longitude of current location to calculate distance from
*/
public void sortByDistance(double lat, double lon) {
Collections.sort(mLocations, new LocationDistanceComparator(lat, lon));
mSorted = true;
}
}
/**
* Comparator that allows sorting of locations by distance from a point
*/
static class LocationDistanceComparator implements Comparator<Location> {
private final double mLat;
private final double mLon;
private final SparseArray<Float> mDistances;
public LocationDistanceComparator(double lat, double lon) {
mLat = lat;
mLon = lon;
mDistances = new SparseArray<>();
}
private boolean locationHasCoords(Location l) {
return (l.hasAddress() && l.getAddress().hasLatitude() && l.getAddress().hasLongitude());
}
private float distanceToLocation(Location l) {
// Try to return from cache
float distance = mDistances.get(l.getId(), -1f);
if (distance > 0) {
return distance;
}
// Calculate the distance between location and provided coordinates
float[] results = new float[2];
android.location.Location.distanceBetween(mLat, mLon, l.getAddress().getLatitude(), l.getAddress().getLongitude(), results);
distance = results[0];
// Store distance in cache
mDistances.put(l.getId(), distance);
return distance;
}
public int compare(Location l1, Location l2) {
// TODO: Fix bug here. Getting "Comparison method violates its general contract!"
if (locationHasCoords(l1) && !locationHasCoords(l2)) {
return -1;
} else if (!locationHasCoords(l1) && locationHasCoords(l2)) {
return 1;
} else if (locationHasCoords(l1) && locationHasCoords(l2)){
float distance1 = distanceToLocation(l1);
float distance2 = distanceToLocation(l2);
if (distance1 > distance2) {
return 1;
} else if (distance1 < distance2) {
return -1;
}
}
// All else equal, let's use name
if (l1.getName() != null && l2.getName() != null) {
return l1.getName().compareTo(l2.getName());
}
return 0;
}
}
private class BasicLocationListener implements LocationListener {
private static final String TAG = "LocationListener";
private final LocationSpinnerAdapter spinnerAdapter;
private final LocationManager locationManager;
public BasicLocationListener(LocationSpinnerAdapter spinnerAdapter, LocationManager locationManager) {
this.spinnerAdapter = spinnerAdapter;
this.locationManager = locationManager;
}
@Override
public void onLocationChanged(android.location.Location location) {
spinnerAdapter.sortByDistance(location.getLatitude(), location.getLongitude());
locationManager.removeUpdates(this);
}
@Override
public void onStatusChanged(String s, int i, Bundle bundle) {
Log.d(TAG, "onStatusChanged: ");
}
@Override
public void onProviderEnabled(String s) {
Log.d(TAG, "onProviderEnabled: ");
}
@Override
public void onProviderDisabled(String s) {
Log.d(TAG, "onProviderDisabled: ");
}
}
}