donly

//: Playground - noun: a place where people can play

import Foundation

var str = "Hello"
let data1 = str.data(using: String.Encoding.utf8)!

data1.withUnsafeBytes { (bytes: UnsafePointer<CChar>) -> Void in
    print(bytes.pointee)
    let arr = UnsafeBufferPointer(start: bytes, count: 5)

donly

int main(int argc, const char * argv[]) {
    /* 指针、引用和取值
    int *ptr;                   // 声明一个 int 指针
    int val = 1;                // 声明一个 int 值
    ptr = &val;                 // 为指针分配一个 int 值的引用
    int deref = *ptr;           // 对指针进行取值
    int nullVal;                // 默认值是 0
    int *nullPtr = &nullVal;
    
    printf("Hello, World!\n%p=%d\n%p=%d\n", ptr, deref, nullPtr, nullVal);

donly

# default.custom.yaml
# save it to: 
#   ~/.config/ibus/rime  (linux)
#   ~/Library/Rime       (macos)
#   %APPDATA%\Rime       (windows)

patch:
  schema_list:
    - schema: luna_pinyin          # 朙月拼音
    - schema: luna_pinyin_simp     # 朙月拼音 简化字模式

donly

#pragma mark - 

- (void)drawTestLine
{
    // test code : draw line between Beijing and Hangzhou
    CLLocation *location0 = [[CLLocation alloc] initWithLatitude:39.954245 longitude:116.312455];
    CLLocation *location1 = [[CLLocation alloc] initWithLatitude:30.247871 longitude:120.127683];
    NSArray *array = [NSArray arrayWithObjects:location0, location1, nil];
    [self drawLineWithLocationArray:array];
}

donly

// 添加通知
[[UIDevice currentDevice] setProximityMonitoringEnabled:YES];
    if ([UIDevice currentDevice].proximityMonitoringEnabled == YES)
        [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(proximitySensorChange:) 
                                                 name:UIDeviceProximityStateDidChangeNotification
                                               object:nil];

// 移除通知
if ([UIDevice currentDevice].proximityMonitoringEnabled == YES)

donly

#pragma mark - CLLocationManagerDelegate
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
    switch (error.code) {
        case kCLErrorLocationUnknown:
            NSLog(@"The location manager was unable to obtain a location value right now.");
            break;
        case kCLErrorDenied:
            NSLog(@"Access to the location service was denied by the user.");
            break;
        case kCLErrorNetwork:

donly

- (IBAction)openGPS:(id)sender {
    if (locationManager == nil) {
        locationManager = [[CLLocationManager alloc] init];
        locationManager.delegate = self;
        locationManager.desiredAccuracy = kCLLocationAccuracyBest;  // 越精确，越耗电！
    }
    
    [locationManager startUpdatingLocation];  // 开始定位
}

donly

CLLocationManager *manager = [[CLLocationManager alloc] init];
    if (manager.locationServicesEnabled == NO) {
        UIAlertView *servicesDisabledAlert = [[UIAlertView alloc] initWithTitle:@"Location Services Disabled" message:@"You currently have all location services for this device disabled. If you proceed, you will be asked to confirm whether location services should be reenabled." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [servicesDisabledAlert show];
        [servicesDisabledAlert release];
    }

donly

// declare
@property (retain) NSTimer *unregisteredTimer;



// implements
- (IBAction)createUnregisteredTimer:sender {

    NSMethodSignature *methodSignature = [self methodSignatureForSelector:@selector(invocationMethod:)];

donly

// declcare
@property (assign) NSTimer *repeatingTimer;

// implements
- (IBAction)startRepeatingTimer:sender {

 

    NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:0.5