space-ios/Carthage/Checkouts/realm-cocoa/examples/ios/objc/TodayExtension/TodayViewController.m

////////////////////////////////////////////////////////////////////////////
//
// Copyright 2015 Realm Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////

#import "TodayViewController.h"
#import <NotificationCenter/NotificationCenter.h>

#import "Tick.h"

@interface TodayViewController () <NCWidgetProviding>

@property (nonatomic, strong) UIButton *button;
@property (nonatomic, strong) Tick *tick;
@property (nonatomic, strong) RLMNotificationToken *notificationToken;

@end

@implementation TodayViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.preferredContentSize = CGSizeMake(0, 200.0);
    RLMRealmConfiguration *configuration = [RLMRealmConfiguration defaultConfiguration];
    configuration.fileURL = [[[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:@"group.io.realm.examples.extension"] URLByAppendingPathComponent:@"extension.realm"];
    [RLMRealmConfiguration setDefaultConfiguration:configuration];
    self.tick = [Tick allObjects].firstObject;
    if (!self.tick) {
        [[RLMRealm defaultRealm] transactionWithBlock:^{
            self.tick = [Tick createInDefaultRealmWithValue:@[@"", @0]];
        }];
    }
    self.notificationToken = [self.tick.realm addNotificationBlock:^(NSString *notification, RLMRealm *realm) {
        // Occasionally, respond immediately to the notification by triggering a new notification.
        if (self.tick.count % 19 == 0) {
            [self tock];
        }
        [self updateLabel];
    }];
    self.button = [UIButton buttonWithType:UIButtonTypeSystem];
    self.button.frame = self.view.bounds;
    [self.button addTarget:self action:@selector(tock) forControlEvents:UIControlEventTouchUpInside];
    self.button.titleLabel.textAlignment = NSTextAlignmentCenter;
    [self.button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [self.view addSubview:self.button];
    [self updateLabel];
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    self.button.frame = self.view.bounds;
    [self updateLabel];
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    [self tock];
    [self updateLabel];
}

- (void)updateLabel {
    [self.button setTitle:@(self.tick.count).stringValue forState:UIControlStateNormal];
}

- (void)tock {
    [[RLMRealm defaultRealm] transactionWithBlock:^{
        self.tick.count++;
    }];
}

@end