CG-L 的技术博客

#import <Foundation/Foundation.h>#import "AFNetworking.h"typedef void(^NetworkingSuccess)(id response);typedef void(^NetworkingFail)(NSError *error);@interface NetworkingTools : NSObject+ (void)post

#import <UIKit/UIKit.h>@interface SaoMiaoViewController : UIViewController@end#import "SaoMiaoViewController.h"#import <AVFoundation/AVFoundation.h>#define IS_VAILABLE_IOS8 ([[[UIDevice currentDevic

#import <UIKit/UIKit.h>@interface CameraViewController : UIViewController@end#import "CameraViewController.h"#import <AVFoundation/AVFoundation.h>#import "ViewController.h"#import "PlayerViewControl

git help ：git指令帮助手册 查看其他指令的做法：git help 其他指令git config ：git的配置信息相关（修改的是.git/config文件） 配置用户名：git config “user.name” 用户名（用于跟踪修改记录） 配置邮箱：git config “user.email” 邮箱（用于多人开发间的沟通） 查看配置信息：git config –l 编辑配

#import "ViewController.h"#import <AVOSCloud/AVOSCloud.h>#import "ShoppingCarTableDefine.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad{ [super viewDidLoad];

#import "ViewController.h"// iPhone5S开始, 6S第二代, 指纹识别验证 YES/NO// 授权验证, 指纹识别框架#import <LocalAuthentication/LocalAuthentication.h>@interface ViewController ()// 指纹识别@property (strong, nonatomic) LAConte

#import "ViewController.h"// 捕获摄像头数据需要该框架#import <AVFoundation/AVFoundation.h>@interface ViewController () <AVCaptureMetadataOutputObjectsDelegate>@property (strong, nonatomic) AVCaptureSession *captu

#import <UIKit/UIKit.h>@interface UIImage (QRCode)- (UIImage *)imageWithIcon:(UIImage *)icon;@end#import "UIImage+QRCode.h"@implementation UIImage (QRCode)- (UIImage *)imageWithIcon:(UIImage *)icon{

#import "ViewController.h"// 二维码, 主要通过CoreImage框架来实现的#import <CoreImage/CoreImage.h>#import "UIImage+QRCode.h"@interface ViewController ()// 滤镜, 生成二维码的滤镜@property (strong, nonatomic) CIFilter *filt

http://blog.youkuaiyun.com/dolacmeng/article/details/48373769

#import "ViewController.h"#import <AVFoundation/AVFoundation.h>@interface ViewController ()// AVAudioRecorder 实现相关功能@property (strong, nonatomic) AVAudioRecorder *recorder;@end@implementation ViewCon

#import "ViewController.h"// 提供联系人查询, 添加的UI界面#import <AddressBookUI/AddressBookUI.h>@interface ViewController () <UINavigationControllerDelegate, ABPeoplePickerNavigationControllerDelegate>// 联系人查询控制器

#import #import "FMDatabase.h"@interface FMDBManager : NSObject@property (nonatomic,retain)FMDatabase *dataBase;//建购物车的表- (void)createShopCarTable;//加对象- (BOOL)insertShopCar:(CGGoodsListBasic

用 cocoapod 下载图表库：pod “PNChart”#import "ViewController.h"#import "CorePlot-CocoaTouch.h"#import "PNChartDelegate.h"#import "PNChart.h"#define ARC4RANDOM_MAX 0x100000000@interface ViewController ()<P

方法一：直接跳到商店NSString *str = [NSString stringWithFormat:@"itms-apps://itunes.apple.com/app/id1071190903"];[[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];方法二：加载一个商店控制器//自定义方法- (v

//1.获得上下文 CGContextRef ctx = UIGraphicsGetCurrentContext(); CGContextSaveGState(ctx); /*================ 画圆 ================*/ CGContextAddArc(ctx, self.center.x, 30 + radius, radius,

集成 Charts 框架：http://www.th7.cn/Program/IOS/201610/978760.shtml 还要另外集成 Masonry 框架使用举例：折线图：@interface LineViewController ()<ChartViewDelegate>@property (nonatomic,strong) LineChartView *LineChartView;

NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"Using NSAttributed String，try your best to test attributed string text"]; [str addAttribute:NSForegroundColorAttr

@property (weak, nonatomic) IBOutlet UIButton *constellationBtn;@property (nonatomic,strong) UIView *pickerMainView;@property (nonatomic,strong)UIPickerView *pickerView;//自定义pickerview@property (non

#pragma mark 相机白色navigation- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated { [[UINavi

//计算距离现在的时间+ (NSString *)compareCurrentTime:(NSString *)str { //把字符串转为NSdate NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"yyyy-MM-dd HH:m

//创建管理类NSString *HomePath = [NSString stringWithFormat:@"%@/Documents/Message.db",NSHomeDirectory()]; self.dataBase = [[FMDatabase alloc]initWithPath:HomePath]; [self.dataBase open];//打开表NSSt

前几天做了一个 JPush 的 demo，这里记录一下关于推送的知识点： 1、要设置标签和别名（注册DeviceToken后再设置）[JPUSHService setTags:[[NSSet alloc]initWithObjects:[NSString stringWithFormat:@"100"], nil] aliasInbackground:@"100"];2、在控制器拿到收到的推送通知

//首先创建JSContext对象、获取当前JS运行环境 JSContext *context = [self.webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"]; //将我们的context对象与js方法建立桥接联系，相当于监听 js 中名为“wxpay”的方法，在 Block 中

核心代码句：[self.webView loadHTMLString:[NSString stringWithFormat:@"<此处填写要加载的路径或者地址>"] baseURL:nil];给 html 字符串代码添加字符，可以用替换的思想进行添加//此 html 代码中原有的语句是：“/images/upload/Image/asdfasfdasdfpic.jpg”，我们要加上“http://w

#import "ViewController.h"#import <AVFoundation/AVFoundation.h>@interface ViewController () <AVAudioPlayerDelegate>// 音乐播放类@property (strong, nonatomic) AVAudioPlayer *player;@end@implementation View

#import "ViewController.h"// 提供联系人查询, 添加的UI界面#import <AddressBookUI/AddressBookUI.h>@interface ViewController () <UINavigationControllerDelegate, ABPeoplePickerNavigationControllerDelegate>// 联系人查询控制器

#import "ViewController.h"#import "NSString+RegularExpression.h"#import "ZTextAttachment.h"@interface ViewController ()@property (weak, nonatomic) IBOutlet UILabel *label;@end@implementation ViewCont

#import "ViewController.h"#import "NSString+RegularExpression.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad { [super viewDidLoad];// [self test]; [self

#import "ViewController.h"// 用来处理位置相关的事件#import <CoreLocation/CoreLocation.h>@interface ViewController () <CLLocationManagerDelegate>// 定位服务的入口// CLLocationManager 主要处理 位置/方向/区域 相关的事件@property (nona

#import "ViewController.h"#import <CoreMotion/CoreMotion.h>@interface ViewController ()// 计步器@property (strong, nonatomic) CMStepCounter *counter;// 新计步器@property (strong, nonatomic) CMPedometer *

#import "ViewController.h"@interface ViewController ()@end@implementation ViewController// 开始摇一摇- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event{ NSLog(@"开始摇一摇");}// 结束摇一摇-

#import "ViewController.h"#import <CoreMotion/CoreMotion.h>@interface ViewController ()@property (strong, nonatomic) CMMotionManager *manager;@end@implementation ViewController- (void)viewDidLoad {

#import "ViewController.h"// 处理设备的动作相关的事件#import <CoreMotion/CoreMotion.h>@interface ViewController ()// 使用动作事件的入口@property (strong, nonatomic) CMMotionManager *motionManager;@end@implementation View

#import "ViewController.h"//一个自己写的快速获取 frame 各属性的分类#import "UIView+ZUtility.h"@interface ViewController () <UIAccelerometerDelegate>@property (weak, nonatomic) IBOutlet UIImageView *imageView;// 加速计

#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (IBAction)btnAction:(id)sender{ // 在UIDevice类中, proximity BOOL youmeiyoudakai = [[UIDevice currentDevi

表连接查询什么是表连接查询?需要联合多张表才能查到想要的数据 表连接的类型内连接：inner join 或者 join (显示的是左右表都有完整字段值的记录)左外连接：left outer join (保证左表数据的完整性)示例 查询0316班的所有学生嵌套查询SELECT * FROM t_student where class_id = (SELECT id FROM t_class

简单约束建表时可以给特定的字段设置一些约束条件，常见的约束有NOT NULL ：规定字段的值不能为nullUNIQUE ：规定字段的值必须唯一DEFAULT ：指定字段的默认值 (建议：尽量给字段设定严格的约束，以保证数据的规范性)示例CREATE TABLE T_Person (id integer, name text NOT NULL UNIQUE, age integer NOT

#import "ViewController.h"#import <CoreLocation/CoreLocation.h>@interface ViewController () <CLLocationManagerDelegate>@property (nonatomic, strong) CLLocationManager *manager;// 记录上一个位置@property (no

#import "ViewController.h"#import <CoreLocation/CoreLocation.h>// ~/Library/Developer/Xcode/UserData@interface ViewController () <CLLocationManagerDelegate>@property (nonatomic, strong) CLLocationMana