接手一个外包项目，发现问题颇多，下面是对整个项目封装过程的记录！
1: 接口前缀太多，切换环境不方便
2: 通用方法没有进行封装 -> 支付方法哪里用到写哪里
3: 扩展性和容错率太低！许多数组取值是直接根据数组下标来取的
4: 宏定义乱用 -> 用户数据没有进行封装,直接用宏来写
之前的项目接口前缀是直接写在pch文件中，每次切换环境需要来回注释，十分的不方便。
而且pch文件本身是预编译环境，不做改动的代码才是这里的最佳选择，如果网络环境需要经常切换，存放在这里就不是很合理！
网络环境一般为本地测试、预发布环境、正式环境。
我们可以使用三个pilst文件来对其进行封装。切换一次网络环境，只需要切换对应的plist文件即可。
1.切换环境十分方便快捷，额其实这一条就够了，下面是方便切换网络环境的好处
2.在扩展方面十分方便，想想你的测试微信账号和正式账号的切换
3.方便后台和测试MM测试，想想你正在忙着撸代码呢？测试MM一会让你切换正式网络环境，一会让你切换本地环境。每次都需要重新打包，是不是很烦躁，不要怕，在APP的某一处，偷偷的用上一个点击方法，可以让她自由切换哦！
1.创建plist文件
.
2.根据场景调用对应的plist文件
- (void)setAppType:(XBApp_Type)type{
NSString *path = nil;
switch (type) {
case XBApp_Type_Local:
path = [[NSBundle mainBundle] pathForResource:@"LocalNetworkProtocol" ofType:@"plist"];
break;
case XBApp_Type_Debug:
path = [[NSBundle mainBundle] pathForResource:@"DebugNetworkProtocol" ofType:@"plist"];
break;
case XBApp_Type_Release:
path = [[NSBundle mainBundle] pathForResource:@"ReleaseNetworkProtocol" ofType:@"plist"];
break;
default: NSLog(@"-------- 警告!未选择打包模式 --------------");
break;
}
_customMadeDic = [NSDictionary dictionaryWithContentsOfFile:path] ;
}对常用的方法做一些分类，比如判断字符串是否为空，判断字符串是否为电话号码，判断字符串是否为url等等….这些分类可以让你快速的开发。
在项目中，经常要截取一些url的参数，不要采用下标取值，正确姿势是写一个url的解析分类，获取url中对应的参数
警告：这是一个错误姿势
NSString * string = @"https://112.112.112.112/apinew/customPage?groupId=6&sign=a7522acd73eeef8cd6f8c5c04c1b17f2&timeline=201702171414&appStartToken=&version=1.5.5";
NSArray * ary = [string componentsSeparatedByString:@"&"];
if ([string rangeOfString:@"shop_checks"].location != NSNotFound) {
NSString * specValue = [[ary[4] componentsSeparatedByString:@"="] lastObject];
NSString * num = [[ary[3] componentsSeparatedByString:@"="] lastObject];
NSString * skuProductId = [[ary[2] componentsSeparatedByString:@"="] lastObject];
NSString * productId = [[ary[1] componentsSeparatedByString:@"="] lastObject];
}正确的解锁姿势，写一个分类取出URL中的参数
// 将URL中得参数转化成字典
+ (NSDictionary*)getURLParameter:(NSString*)urlString{
if (urlString.length == 0) {
return nil;
}
NSMutableDictionary *dict =[NSMutableDictionary dictionary];
NSArray *urlArray = [urlString componentsSeparatedByString:@"?"];
if (urlArray.count > 1) { //如果大于1，认为有参数
NSString *URLParString = [urlArray lastObject];
if ([URLParString rangeOfString:@"&"].location != NSNotFound) { //多个参数
NSArray *dictArray = [URLParString componentsSeparatedByString:@"&"];
for (NSString *KVString in dictArray) {
NSArray *KVArray = [KVString componentsSeparatedByString:@"="];
for (int i = 0; i < KVArray.count; i++) {
if (i == KVArray.count - 1) {
[dict setValue:KVArray[i] forKey:KVArray[i - 1]];
}
}
}
}else if ([URLParString rangeOfString:@"="].location != NSNotFound){ //单个参数
NSArray *dictArray = [URLParString componentsSeparatedByString:@"="];
for (int i = 0; i < dictArray.count; i++) {
if (i == dictArray.count - 1) {
[dict setValue:dictArray[i] forKey:dictArray[i - 1]];
}
}
}
}
return dict;
}这只是其中一个例子，在项目中尽量不要采用数组下标取值这种操作。这种操作相对系统来说是危险的。
弊端有两方面：
1.容易造成系统崩溃
2.不容易对功能进行扩展
使用宏的话，尽量先对代码进行封装，再使用宏来简化代码。避免别人接手一脸懵逼的情况
警告：下面为错误示范
#define kUserId [[NSUserDefaults standardUserDefaults] objectForKey:@"userId"]
#define kuserName [[NSUserDefaults standardUserDefaults] objectForKey:@"userName"]
#define KuserLoginState [[NSUserDefaults standardUserDefaults] boolForKey:@"isLogined"]
#define kInitEntryId [[NSUserDefaults standardUserDefaults] objectForKey:@"initEntryId"]
#define kToken [[NSUserDefaults standardUserDefaults] objectForKey:@"kToken"]这些是用户信息，完全可以使用一个模型先封装起来，后期想用宏处理的时候再用宏进行处理
正确的解锁姿势,先创建一个储存类，然后再创建一个用户类，加密可以选择SSKeychainss:
1.创建储存类
.h文件
#import <Foundation/Foundation.h>
#import "XBUserdefaultDefine.h"
#import <UIKit/UIKit.h>
@interface XBUserDefault : NSObject
+ (id)sharedWXUserDefault;
- (NSInteger)integerValueForKey:(NSString*)key;
- (BOOL)boolValueForKey:(NSString*)key;
- (NSString*)textValueForKey:(NSString*)key;
- (NSDictionary*)dicValueForKey:(NSString*)key;
- (CGFloat)floatValueForKey:(NSString*)key;
- (void)setInteger:(NSInteger)value forKey:(NSString*)key;
- (void)setBool:(BOOL)value forKey:(NSString*)key;
- (void)setFloat:(float)value forkey:(NSString*)key;
- (void)setObject:(id)object forKey:(NSString*)key;
- (void)removeObjectForKey:(NSString*)key;
- (NSArray*)allKeys;
- (BOOL)hasKey:(NSString*)key;
@end
.m文件
#import "XBUserDefault.h"
@implementation XBUserDefault
+ (id)sharedWXUserDefault{
static dispatch_once_t predicate;
static XBUserDefault *sharedUserDefault = nil;
dispatch_once(&predicate, ^{
sharedUserDefault = [[XBUserDefault alloc] init];
});
return sharedUserDefault;
}
- (NSInteger)integerValueForKey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
return [userDefaults integerForKey:key];
}
- (BOOL)boolValueForKey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
return [userDefaults boolForKey:key];
}
- (NSString*)textValueForKey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
return [userDefaults stringForKey:key];
}
- (NSDictionary*)dicValueForKey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
return [userDefaults dictionaryForKey:key];
}
- (CGFloat)floatValueForKey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
return [userDefaults floatForKey:key];
}
- (void)setInteger:(NSInteger)value forKey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setInteger:value forKey:key];
[userDefaults synchronize];
}
- (void)setBool:(BOOL)value forKey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setBool:value forKey:key];
[userDefaults synchronize];
}
- (void)setFloat:(float)value forkey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setFloat:value forKey:key];
[userDefaults synchronize];
}
- (void)setObject:(id)object forKey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setObject:object forKey:key];
[userDefaults synchronize];
}
- (void)removeObjectForKey:(NSString*)key{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults removeObjectForKey:key];
[userDefaults synchronize];
}
- (NSArray*)allKeys{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
return [[userDefaults dictionaryRepresentation] allKeys];
}
- (BOOL)hasKey:(NSString*)key{
NSArray *allKeys = [self allKeys];
NSInteger index = [allKeys indexOfObject:key];
return index != NSNotFound;
}
@end
2.创建用户对象
.h文件
#import <Foundation/Foundation.h>
@interface XBUserOBJ : NSObject
+(XBUserOBJ*)sharedUserOBJ;
-(void)setUser:(NSString*)user; //设置帐号
-(void)setPwd:(NSString*)pwd; //设置密码
- (void)setUserID:(NSString*)userID; //用户ID
- (NSString*)user;
- (NSString*)pwd;
- (NSString*)userID;
- (NSString*)token;
-(void)removeAllUserInfo;
@end
.m文件
#import "XBUserOBJ.h"
#import "XBUserDefault.h"
@implementation XBUserOBJ
+(XBUserOBJ*)sharedUserOBJ{
static dispatch_once_t onceToken;
static XBUserOBJ *sharedUserOBJ = nil;
dispatch_once(&onceToken,^{
sharedUserOBJ = [[XBUserOBJ alloc] init];
});
return sharedUserOBJ;
}
-(void)setUser:(NSString *)user{
XBUserDefault *userDefault = [XBUserDefault sharedWXUserDefault];
[userDefault setObject:user forKey:XB_Userdefault_User];
}
-(void)setPwd:(NSString *)pwd{
XBUserDefault *userDefault = [XBUserDefault sharedWXUserDefault];
[userDefault setObject:pwd forKey:XB_Userdefault_Pwd];
}
- (void)setUserID:(NSString *)userID{
XBUserDefault *userDefault = [XBUserDefault sharedWXUserDefault];
[userDefault setObject:userID forKey:XB_Userdefault_UserID];
}
//获取
-(NSString*)user{
XBUserDefault *userDefault = [XBUserDefault sharedWXUserDefault];
return [userDefault textValueForKey:XB_Userdefault_User];
}
-(NSString*)pwd{
XBUserDefault *userDefault = [XBUserDefault sharedWXUserDefault];
return [userDefault textValueForKey:XB_Userdefault_Pwd];
}
- (NSString*)userID{
XBUserDefault *userDefault = [XBUserDefault sharedWXUserDefault];
return [userDefault textValueForKey:XB_Userdefault_UserID];
}
- (void)removeAllUserInfo{
XBUserDefault *userDefault = [XBUserDefault sharedWXUserDefault];
[userDefault removeObjectForKey:XB_Userdefault_UserID];
[userDefault removeObjectForKey:XB_Userdefault_UserToken];
[userDefault removeObjectForKey:XB_Userdefault_NewUserID];
[userDefault removeObjectForKey:XB_Userdefault_User];
[userDefault removeObjectForKey:XB_Userdefault_Pwd];
}
公共文件
#ifndef RKXB_XBUserdefaultDefine_h
#define RKXB_XBUserdefaultDefine_h
#pragma mark ---- 用户信息存储
#define XB_Userdefault_UserID @"XB_Userdefault_UserID"
#define XB_Userdefault_UserToken @"kToken"
#define XB_Userdefault_NewUserID @"XB_Userdefault_NewUserID"
#define XB_Userdefault_NewUserToken @"XB_Userdefault_NewUserToken"
#define XB_Userdefault_User @"XB_Userdefault_User"
#define XB_Userdefault_Pwd @"XB_Userdefault_Pwd"
#define XB_UserDefault_Type @"XB_UserDefault_Type"
#endif