分析项目心得
1.检查版本更新以及自动登录
（1）.宏定义
（2）#define kBundle [NSBundle mainBundle].bundleIdentifier
.检查版本更新
在AppDelegate里面
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[self checkGuide];
}
（3）检查更新方法
//登录界面和首页的切换
- (void)checkGuide
{
//版本号 新特性界面 是否应该加载
//1.获取你app的版本号
NSString *locaVerson = [NSBundle mainBundle].infoDictionary[@"CFBundleVersion"];
//2.获取 你保存在沙盒中的版本号
NSUserDefaults *defauts = [NSUserDefaults standardUserDefaults];
NSString *saveVersion = [defauts objectForKey:@"saveVerion"];
//3.判断
if([saveVersion isEqualToString:locaVerson]){//两者一致
获取密码
NSUserDefaults *defauts = [NSUserDefaults standardUserDefaults];
NSString *passWord = [defauts objectForKey:@"saveVerion"];
if([defauts objectForKey:kUID] && [defauts objectForKey:kTOKEN]){
//自动登录
UUTabBarController * mainVc = [[UUTabBarController alloc]init];
self.window.rootViewController = mainVc;
}else{
// 跳到登录界面
//加载登录界面
UUPhoNumLoginViewController * loginView=[[UUPhoNumLoginViewController alloc]init];
UULoginNavController *mainVc=[[UULoginNavController alloc]initWithRootViewController:loginView];
self.window.rootViewController = mainVc;
}
}else{
#warning 把最新的版本号保存下来 ****新版本需要走引导页****
[defauts setObject:locaVerson forKey:@"saveVerion"];
[defauts synchronize];
//加载登录界面
UUPhoNumLoginViewController * loginView=[[UUPhoNumLoginViewController alloc]init];
UULoginNavController *mainVc=[[UULoginNavController alloc]initWithRootViewController:loginView];
self.window.rootViewController = mainVc;
}
}
2.textField点击别处退出键盘
-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
[self.view endEditing:YES];
}
3.出来键盘，控制当前视图往上面移动的距离
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(changeKeyBoard:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(changeKeyBoard:) name:UIKeyboardWillHideNotification object:nil];
#pragma mark --相应键盘的通知事件
- (void)changeKeyBoard:(NSNotification *)notification{
if(self.passWordField){
NSLog(@"%@",notification);
//获取userInfo信息
NSDictionary *userInfo = notification.userInfo;
//获取要移动控件的transForm
CGAffineTransform transForm = self.view.transform;
//获取移动的位置 屏幕的高度 - 最终显示的frame的Y = 移动的位置
//1. 获取键盘最终显示的y
NSValue *value = userInfo[UIKeyboardFrameEndUserInfoKey];
CGRect endFrame = [value CGRectValue];
CGFloat moveY = - (self.view.frame.size.height - endFrame.origin.y);
//移动具体移动多少，这里决定
transForm = CGAffineTransformMakeTranslation(0, 移动的距离);
//执行动画移动
[UIView animateWithDuration:[userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue] animations:^{
self.view.transform = transForm;
}];
}
}
4.控制进入一个控制器的导航栏视图的显示与隐藏
-(void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
self.navigationController.navigationBarHidden = YES;
}
-(void)viewWillDisappear:(BOOL)animated{
[super viewWillDisappear:animated];
self.navigationController.navigationBarHidden = NO;
}
5.在textField的里面的字体更改时就对自己的是有属性赋值
[self.phoneNumField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
[self.passWordField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
-(void)textChange{
self.userName=self.phoneNumField.text;
self.passWord=self.passWordField.text;
}
6.获取验证码textField的编写
UITextField * phoneNumField=[[UITextField alloc]init];
self.phoneNumField= phoneNumField;
self.phoneNumField.borderStyle= UITextBorderStyleRoundedRect;
self.phoneNumField.clearButtonMode = UITextFieldViewModeAlways;
UILabel * phoneNumLable = [[UILabel alloc]init];
UIFont *iconfont = [UIFont fontWithName:@"IconFont" size: 18];
phoneNumLable.font = iconfont;
phoneNumLable.text = @"\U0000e602";
UIView *phoneNumview=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 30, 50)];
self.phoneNumField.leftView=phoneNumview;
self.phoneNumview = phoneNumview ;
phoneNumLable.frame = CGRectMake(10, 0, 30, 50);
[self.phoneNumview addSubview:phoneNumLable];
self.phoneNumField.leftViewMode = UITextFieldViewModeAlways;
UITextField * passWordField=[[UITextField alloc]init];
self.passWordField= passWordField;
self.passWordField.placeholder=@"验证码";
UIButton * verCodeBtn = [[UIButton alloc]init];
self.passWordField.rightView = verCodeBtn;
self.passWordField.rightViewMode = UITextFieldViewModeAlways;
这样，我们就可以很方便的使用iconfont图标了。这里要注意的是，图标是用的iconfont中的图标用的是unicode编码，我们在自己的工程中时需要将&#xXXXX格式转换成\UXXXXXXXX格式。
-(void)loadView{
[super loadView];
// imageView
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(100, 50, 30, 30)];
[self.view addSubview:imageView];
//图标编码是，需要转成\U0000e603
imageView.image = [UIImage iconWithInfo:TBCityIconInfoMake(@"\U0000e603", 30, [UIColor redColor])];
// button
UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
button.frame = CGRectMake(100, 100, 40, 40);
[self.view addSubview:button];
[button setImage:[UIImage iconWithInfo:TBCityIconInfoMake(@"\U0000e60c", 40, [UIColor redColor])] forState:UIControlStateNormal];
// label,label可以将文字与图标结合一起，直接用label的text属性将图标显示出来
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(50, 160, 280, 40)];
[self.view addSubview:label];
label.font = [UIFont fontWithName:@"iconfont" size:15];//设置label的字体
label.text = @"这是用label显示的iconfont \U0000e60c";
}
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
self.navigationController.navigationBar.translucent = NO;
UIBarButtonItem *leftBarButton = [[UIBarButtonItem alloc] initWithImage:[ UIImage iconWithInfo:TBCityIconInfoMake(@"\U0000e602",22,[UIColor colorWithRed:0.55 green:0.55 blue:0.55 alpha:1])] style:UIBarButtonItemStylePlain target:self action:@selector(leftButtonAction)];
self.navigationItem.leftBarButtonItem = leftBarButton;
self.navigationItem.leftBarButtonItem.tintColor = [UIColor colorWithRed:0.55 green:0.55 blue:0.55 alpha:1];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage iconWithInfo:TBCityIconInfoMake(@"\U0000e60d",25, [UIColor colorWithRed:0.14 green:0.61 blue:0.83 alpha:1.00])] style:UIBarButtonItemStylePlain target:self action:@selector(rightButtonAction)];
self.navigationItem.rightBarButtonItem.tintColor = [UIColor colorWithRed:0.14 green:0.61 blue:0.83 alpha:1.00];
// Do any additional setup after loading the view, typically from a nib.
}
6.获取系统的相关信息
//获取你app的版本号
NSString *locaVerson = [NSBundle mainBundle].infoDictionary[@"CFBundleVersion"];
// 手机系统版本
NSString * iponeM = [[UIDevice currentDevice] systemName];
7.获取手机的型号
/** 设备类型 */
#define kDevice_iPhone4 (kScreenHeight <= 480.0) //包括iPhone4 , iPhone4s
#define kDevice_iPhone5 ((kScreenHeight > 480.0) && (kScreenHeight <= 568.0)) //包括iPhone5,iPhone5s
#define kDevice_iPhone6 ((kScreenHeight > 568.0) && (kScreenHeight <= 667.0)) //iPhone6
#define kDevice_iPhone6Plus ((kScreenHeight > 667.0) && (kScreenHeight <= 736.0)) //iPhone6Plus
8.跳转登录可以直接通过
[UIApplication sharedApplication].keyWindow.rootViewController = mainVc进行设置
9.自定义的相应是控件可以继承自UIControl
10.使用蒲公英可以快速获取设备的UUID
11.UIView类的autoresizingMask
在 UIView 中有一个autoresizingMask的属性，它对应的是一个枚举的值（如下），属性的意思就是自动调整子控件与父控件中间的位置，宽高。
enum {
UIViewAutoresizingNone = 0,
UIViewAutoresizingFlexibleLeftMargin = 1 << 0,
UIViewAutoresizingFlexibleWidth = 1 << 1,
UIViewAutoresizingFlexibleRightMargin = 1 << 2,
UIViewAutoresizingFlexibleTopMargin = 1 << 3,
UIViewAutoresizingFlexibleHeight = 1 << 4,
UIViewAutoresizingFlexibleBottomMargin = 1 << 5
};
UIViewAutoresizingNone就是不自动调整。
UIViewAutoresizingFlexibleLeftMargin 自动调整与superView左边的距离，保证与superView右边的距离不变。
UIViewAutoresizingFlexibleRightMargin 自动调整与superView的右边距离，保证与superView左边的距离不变。
UIViewAutoresizingFlexibleTopMargin 自动调整与superView顶部的距离，保证与superView底部的距离不变。
UIViewAutoresizingFlexibleBottomMargin 自动调整与superView底部的距离，也就是说，与superView顶部的距离不变。
UIViewAutoresizingFlexibleWidth 自动调整自己的宽度，保证与superView左边和右边的距离不变。
UIViewAutoresizingFlexibleHeight 自动调整自己的高度，保证与superView顶部和底部的距离不变。
12.使用JSON进行JSON支持
地址：http://stig.github.com/json-framework/
JSON框架。包括一个解析器将JSON字符串解析成对象；以及一个生成器从对象生成字符串。
// JSON string -> NSDictionary
NSString *jsonString = @"{\"foo\": \"bar\"}";
NSDictionary *dictionary = [jsonString JSONValue];
NSLog(@"Dictionary value for \"foo\" is \"%@\"", [dictionary objectForKey:@"foo"]);
// NSDictionary -> JSON string
NSString *newJsonString = [dictionary JSONRepresentation];
13.快速定义的小技巧。其最新的Swift里面已经集成了
#define Color(a) [UIColor colorForHex:a]
#define IMAGE(a) [UIImage imageNamed:a]
14.项目里面尽量多使用懒加载的形式：数组，自定义view 控件的创建
例如：懒加载的代码写到一起，还可以增加了可读性
//导航栏左按钮
- (UIBarButtonItem *)leftItem{
if (!_leftItem) {
_leftItem = [[UIBarButtonItem alloc]initWithImage:IMAGE(@"back") style:UIBarButtonItemStylePlain target:self action:@selector(backMethod)];
[_leftItem setTintColor:WHITECOLOR];
}
return _leftItem;
}
- (UIBarButtonItem *)rightItem{
if (!_rightItem) {
_rightItem = [[UIBarButtonItem alloc]initWithTitle:@"注册" style:UIBarButtonItemStyleDone target:self action:@selector(registerMethod)];
[_rightItem setTitleTextAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:14]} forState:UIControlStateNormal];
[_rightItem setTintColor:WHITECOLOR];
}
return _rightItem;
}
15.创建圆角的button
[UIButton buttonWithType:UIButtonTypeRoundedRect];
16.创建一个随机的颜色,一般使用来进行测试
#define RandomColor [UIColor colorWithRed:arc4random_uniform(255)/255.0 green:arc4random_uniform(255)/255.0 blue:arc4random_uniform(255)/255.0 alpha:1]
17.使用类似闭包的形式添加控件，更加的简洁：
闭包式
UIView *backView = [[UIView alloc]initWithFrame:(CGRect){0,0,K_ZY_SCREEM_WIDTH,64}];
[self.view addSubview:(
backView.backgroundColor = [UIColor lightGrayColor],
backView
)];
// 返回按钮
UIButton *backBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[backView addSubview:(
backBtn.frame = (CGRect){0,20,40,40},
[backBtn setImage:[UIImage imageNamed:@"返回Btn"] forState:UIControlStateNormal],，
[backBtn addTarget:self action:@selector(OnTapBackBtn:) forControlEvents:UIControlEventTouchUpInside],
backBtn
)];
18.使用枚举的形式创建一个通用的类，可以使用定义局部变量的形式，局部变量的类型是bool，通过判断枚举的属性type的值，对当前的类进行不同的设置，以达到一个类不同显示的实现
BOOL disableBarScroll = _type == STControllerTypeDisableBarScroll;
BOOL hiddenNavigationBar = _type == STControllerTypeHiddenNavBar;
根据局部属性进行不同的设置即可
19.
//去掉过期警告
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
// 这部分使用到的过期api
#pragma clang diagnostic pop
20.使用weak进行引用的特点
weak reference"的property，他的特色就是虽然会持有对方的reference，但是不会增加retain count
