/// <summary>
/// Override OnBackPressed method
/// </summary>
public override void OnBackPressed()
{
if (mBtnLogin.Enabled)
{
MyEventHandler.Trigger(this, "Player", "Player One", null, false);
Finish(); // Call Finish method when back button is pressed
OverridePendingTransition(Resource.Animation.slide_in_top, Resource.Animation.slide_out_bottom);
}
base.OnBackPressed();
}
/// <summary>
/// Handles deletion of the user
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DialogFrag_OnDeleteComplete(object sender, DeleteUserDialog.OnDeleteEventArgs e)
{
mProgressBar.Visibility = ViewStates.Visible;
Task.Factory.StartNew(() =>
{
if (DbConnector.OpenSQLConnection())
{
// Connection opened
User user = new User()
{
Username = Intent.GetStringExtra("Username"),
Password = CryptoHasher.Hash(e.Password)
};
UserDA userDA = new UserDA();
if (userDA.DeleteUser(user))
{
// User deleted
RunOnUiThread(() => MyEventHandler.Trigger(this));
Finish(); // Close the activity
OverridePendingTransition(Resource.Animation.slide_in_top, Resource.Animation.slide_out_bottom);
}
else
{
string error = "Invalid password.";
RunOnUiThread(() =>
{
//Enabling the controls back
mProgressBar.Visibility = ViewStates.Gone;
AlertGenerator.ShowError(error, this);
});
}
}
else
{
// Connection could not be opened
string error = "Connection to the database could not be established.";
RunOnUiThread(() =>
{
//Enabling the controls back
mProgressBar.Visibility = ViewStates.Gone;
AlertGenerator.ShowError(error, this);
});
}
DbConnector.CloseSQLConnection(); // Close connection to the database
});
}
/// <summary>
/// Override OnOptionsItemSelected method
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public override bool OnOptionsItemSelected(IMenuItem item)
{
switch (item.ItemId)
{
case Android.Resource.Id.Home:
if (mBtnLogin.Enabled)
{
MyEventHandler.Trigger(this, "Player", "Player One", null, false);
Finish(); // Call Finish method when back button is pressed
OverridePendingTransition(Resource.Animation.slide_in_top, Resource.Animation.slide_out_bottom);
}
return(true);
default:
return(base.OnOptionsItemSelected(item));
}
}
/// <summary>
/// Override OnCreate method
/// </summary>
/// <param name="savedInstanceState"></param>
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.activity_splash);
Task.Factory.StartNew(() =>
{
// Load splash loading image
ImageViewAsync splashGif = FindViewById <ImageViewAsync>(Resource.Id.splashImageView);
ImageService.Instance.LoadCompiledResource("loading").Into(splashGif);
// Read UserInfo for saved credentials if available
ISharedPreferences pref = Application.Context.GetSharedPreferences("UserInfo", FileCreationMode.Private);
string username = pref.GetString("Username", String.Empty);
string password = pref.GetString("Password", String.Empty);
if (username == String.Empty || password == String.Empty)
{
// No saved credentials, take user to the access screen
DbConnector.OpenSQLConnection();
DbConnector.CloseSQLConnection();
Intent intent = new Intent(this, typeof(MainActivity));
intent.PutExtra("LoggingStatus", false);
StartActivity(intent);
OverridePendingTransition(Resource.Animation.slide_in_left, Resource.Animation.slide_out_right);
Finish(); // Close this activity
RunOnUiThread(() => MyEventHandler.Trigger(this, "Player", "Player One", null, false));
}
else
{
// Saved credentials found
// Validate credentials
if (DbConnector.OpenSQLConnection())
{
// Connection opened
User user = new User()
{
Username = username,
Password = password
};
UserDA userDA = new UserDA();
User resultUser = userDA.LoginUser(user);
if (resultUser != null)
{
// User found
Intent resultIntent = new Intent(this, typeof(MainActivity));
resultIntent.PutExtra("LoggingStatus", true);
StartActivity(resultIntent);
OverridePendingTransition(Resource.Animation.slide_in_left, Resource.Animation.slide_out_right);
Finish(); // Close this activity
RunOnUiThread(() => MyEventHandler.Trigger(this, resultUser.Username, resultUser.FullName, resultUser.Pic, true));
}
else
{
// Saved credentials are incorrect, take the user to access screen
ISharedPreferencesEditor edit = pref.Edit();
edit.Remove("Username");
edit.Remove("Password");
edit.Apply();
Intent intent = new Intent(this, typeof(MainActivity));
intent.PutExtra("LoggingStatus", false);
StartActivity(intent);
OverridePendingTransition(Resource.Animation.slide_in_left, Resource.Animation.slide_out_right);
Finish(); // Close this activity
RunOnUiThread(() => MyEventHandler.Trigger(this, "Player", "Player One", null, false));
}
}
else
{
// Connection could not be opened, take the user to access screen
Intent intent = new Intent(this, typeof(MainActivity));
intent.PutExtra("LoggingStatus", false);
StartActivity(intent);
OverridePendingTransition(Resource.Animation.slide_in_left, Resource.Animation.slide_out_right);
Finish(); // Close this activity
RunOnUiThread(() => MyEventHandler.Trigger(this, "Player", "Player One", null, false));
}
DbConnector.CloseSQLConnection(); // Close connection to the database
GC.Collect(); // Must call Garbage Collector
}
});
}
/// <summary>
/// Handles btnLogin click event
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnLogin_Click(object sender, EventArgs e)
{
// Validation
string username = mTxtUsername.Text.Trim();
if (username.Length < 1 || mTxtPwd.Text.Length < 1)
{
string error = "Please fill all the fields.";
AlertGenerator.ShowError(error, this);
return;
}
// Disabling controls while saving the record
DisableEnableControls(false);
Task.Factory.StartNew(() =>
{
if (DbConnector.OpenSQLConnection())
{
// Connection opened
User user = new User()
{
Username = mTxtUsername.Text,
Password = CryptoHasher.Hash(mTxtPwd.Text)
};
UserDA userDA = new UserDA();
User resultUser = userDA.LoginUser(user);
if (resultUser != null)
{
// User found
ISharedPreferences pref = Application.Context.GetSharedPreferences("UserInfo", FileCreationMode.Private);
ISharedPreferencesEditor edit = pref.Edit();
if (mRememberMe.Checked)
{
// Save credentials in shared preferences
edit.PutString("Username", resultUser.Username);
edit.PutString("Password", resultUser.Password);
edit.Apply();
}
else
{
// Remove credentials from shared preferences
edit.Remove("Username");
edit.Remove("Password");
edit.Apply();
}
MyEventHandler.Trigger(this, resultUser.Username, resultUser.FullName, resultUser.Pic, true);
Finish(); // Close the activity
OverridePendingTransition(Resource.Animation.slide_in_top, Resource.Animation.slide_out_bottom);
}
else
{
string error = "Invalid Username or Password.";
RunOnUiThread(() =>
{
//Enabling the controls back
DisableEnableControls(true);
AlertGenerator.ShowError(error, this);
});
}
}
else
{
// Connection could not be opened
string error = "Connection to the database could not be established.";
RunOnUiThread(() =>
{
//Enabling the controls back
DisableEnableControls(true);
AlertGenerator.ShowError(error, this);
});
}
DbConnector.CloseSQLConnection(); // Close connection to the database
});
}
