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HaRi
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2017.08.16 今日新增: UIKit-读取json文件&重载;
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‎README.md

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@@ -101,9 +101,14 @@ RxSwift使用教程
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- 5-RxSwift资源释放
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- 6-RxSwift的UITableVIew使用
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UIKit实战补充
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===
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- 读取json文件&重载
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### 今日更新
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- 2017.08.10 更新
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- 元组最佳实践
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- 2017.08.16 更新
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- 读取json文件&重载
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## 更新中...
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###### Tips: UIKit 和 UIFoundation 部分接下来会通过 直播实战项目逐步学习!

‎UIKit/读取json文件&重载/SwiftJsonTest/SwiftJsonTest.xcodeproj/project.pbxproj

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‎UIKit/读取json文件&重载/SwiftJsonTest/SwiftJsonTest.xcodeproj/project.xcworkspace/contents.xcworkspacedata

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‎UIKit/读取json文件&重载/SwiftJsonTest/SwiftJsonTest/AppDelegate.swift

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//
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// AppDelegate.swift
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// SwiftJsonTest
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//
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// Created by 韩俊强 on 2017/8/14.
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// Copyright © 2017年 HaRi. All rights reserved.
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//
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import UIKit
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@UIApplicationMain
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class AppDelegate: UIResponder, UIApplicationDelegate {
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var window: UIWindow?
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func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
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let tabBarVC = MyTabBarController()
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self.window?.rootViewController = tabBarVC
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return true
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}
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func applicationWillResignActive(_ application: UIApplication) {
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// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
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// Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
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}
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func applicationDidEnterBackground(_ application: UIApplication) {
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// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
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// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
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}
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func applicationWillEnterForeground(_ application: UIApplication) {
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// Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
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}
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func applicationDidBecomeActive(_ application: UIApplication) {
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// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
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}
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func applicationWillTerminate(_ application: UIApplication) {
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// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
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}
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}
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‎UIKit/读取json文件&重载/SwiftJsonTest/SwiftJsonTest/Assets.xcassets/AppIcon.appiconset/Contents.json

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{
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"images" : [
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{
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"idiom" : "iphone",
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"size" : "29x29",
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"scale" : "2x"
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},
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{
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"idiom" : "iphone",
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"size" : "29x29",
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"scale" : "3x"
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},
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{
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"idiom" : "iphone",
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"size" : "40x40",
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"scale" : "2x"
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},
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{
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"idiom" : "iphone",
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"size" : "40x40",
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"scale" : "3x"
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},
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{
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"idiom" : "iphone",
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"size" : "60x60",
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"scale" : "2x"
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},
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{
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"idiom" : "iphone",
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"size" : "60x60",
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"scale" : "3x"
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},
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{
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"idiom" : "ipad",
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"size" : "29x29",
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"scale" : "1x"
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},
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{
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"idiom" : "ipad",
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"size" : "29x29",
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"scale" : "2x"
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},
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{
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"idiom" : "ipad",
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"size" : "40x40",
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"scale" : "1x"
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},
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{
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"idiom" : "ipad",
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"size" : "40x40",
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"scale" : "2x"
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},
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{
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"idiom" : "ipad",
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"size" : "76x76",
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"scale" : "1x"
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},
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{
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"idiom" : "ipad",
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"size" : "76x76",
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"scale" : "2x"
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}
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],
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"info" : {
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"version" : 1,
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"author" : "xcode"
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}
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}

‎UIKit/读取json文件&重载/SwiftJsonTest/SwiftJsonTest/Base.lproj/LaunchScreen.storyboard

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11134" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
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<dependencies>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11106"/>
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<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
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</dependencies>
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<scenes>
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<!--View Controller-->
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<scene sceneID="EHf-IW-A2E">
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<objects>
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<viewController id="01J-lp-oVM" sceneMemberID="viewController">
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<layoutGuides>
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<viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
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<viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
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</layoutGuides>
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<view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
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<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
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<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
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<color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
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</view>
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</viewController>
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<placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
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</objects>
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<point key="canvasLocation" x="53" y="375"/>
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</scene>
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</scenes>
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</document>

‎UIKit/读取json文件&重载/SwiftJsonTest/SwiftJsonTest/Base.lproj/Main.storyboard

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<?xml version="1.0" encoding="UTF-8"?>
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<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
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<device id="retina4_7" orientation="portrait">
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<adaptation id="fullscreen"/>
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</device>
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<dependencies>
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<deployment identifier="iOS"/>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
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<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
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</dependencies>
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<scenes>
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<!--View Controller-->
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<scene sceneID="tne-QT-ifu">
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<objects>
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<viewController id="BYZ-38-t0r" customClass="ViewController" customModule="SwiftJsonTest" customModuleProvider="target" sceneMemberID="viewController">
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<layoutGuides>
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<viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
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<viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
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</layoutGuides>
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<view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
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<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
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<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
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<color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
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</view>
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<navigationItem key="navigationItem" id="7nZ-Zm-zJO"/>
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</viewController>
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<placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
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</objects>
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<point key="canvasLocation" x="1952.8" y="772.26386806596713"/>
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</scene>
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</scenes>
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</document>

‎UIKit/读取json文件&重载/SwiftJsonTest/SwiftJsonTest/Info.plist

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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>CFBundleDevelopmentRegion</key>
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<string>en</string>
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<key>CFBundleExecutable</key>
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<string>$(EXECUTABLE_NAME)</string>
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<key>CFBundleIdentifier</key>
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<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
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<key>CFBundleInfoDictionaryVersion</key>
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<string>6.0</string>
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<key>CFBundleName</key>
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<string>$(PRODUCT_NAME)</string>
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<key>CFBundlePackageType</key>
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<string>APPL</string>
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<key>CFBundleShortVersionString</key>
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<string>1.0</string>
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<key>CFBundleVersion</key>
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<string>1</string>
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<key>LSRequiresIPhoneOS</key>
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<true/>
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<key>UILaunchStoryboardName</key>
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<string>LaunchScreen</string>
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<key>UIMainStoryboardFile</key>
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<string>Main</string>
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<key>UIRequiredDeviceCapabilities</key>
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<array>
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<string>armv7</string>
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</array>
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<key>UISupportedInterfaceOrientations</key>
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<array>
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<string>UIInterfaceOrientationPortrait</string>
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</array>
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<key>UISupportedInterfaceOrientations~ipad</key>
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<array>
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<string>UIInterfaceOrientationPortrait</string>
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<string>UIInterfaceOrientationPortraitUpsideDown</string>
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<string>UIInterfaceOrientationLandscapeLeft</string>
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<string>UIInterfaceOrientationLandscapeRight</string>
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</array>
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</dict>
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</plist>

‎UIKit/读取json文件&重载/SwiftJsonTest/SwiftJsonTest/MyTabBarController.swift

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//
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// MyTabBarController.swift
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// SwiftJsonTest
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//
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// Created by 韩俊强 on 2017/8/14.
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// Copyright © 2017年 HaRi. All rights reserved.
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//
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import UIKit
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class MyTabBarController: UITabBarController {
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override func viewDidLoad() {
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super.viewDidLoad()
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/*
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swift支持方法的重载;
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方法的重载:方法名称相同,但是参数不同.包括:
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1.参数的类型不同;
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2.参数的个数不同.
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*/
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// 1.获取json文件路径
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guard let jsonPath = Bundle.main.path(forResource: "MainVCSettings.json", ofType: nil) else {
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print("没有获取到对应的文件路径")
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return
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}
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// 2.读取json文件中的内容
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guard let jsonData = NSData.init(contentsOfFile: jsonPath) else {
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print("没有获取到json文件中的数据")
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return
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}
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// 3.将Data转成数组
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// 如果在调用系统某个方法时,该方法最后有一个throws,说明该方法会抛出异常,那么需要对该异常进行处理
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guard let anyObject = try? JSONSerialization.jsonObject(with: jsonData as Data, options: .mutableContainers) else {
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return
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}
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guard let dicArray = anyObject as?[[String : AnyObject]] else {
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return
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}
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// 4.遍历字典, 获取对应信息
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for dict in dicArray {
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// 4.1.获取控制器对应的字符串
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guard let vcName = dict["vcName"] as? String else {
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continue
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}
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// 4.2.获取控制器显示的title
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guard let title = dict["title"] as? String else {
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continue
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}
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// 4.3.获取控制器显示的图标名称
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guard let imageName = dict["imageName"] as? String else {
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continue
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}
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// 4.4.添加子控制器
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addChildViewController(childVCName: vcName, title: title, imageName: imageName)
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}
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}
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// 方法重载
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private func addChildViewController(childVCName : String, title : String, imageName : String) {
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// NSClassFromString("这里的名字是SwiftJsonTest.HomeViewController") // 根据字符串获取对应的Class：命名空间+.ViewController的名字
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// 如何修改命名空间 Target -> Build Settings -> Product Name, 可以在这里修改命名空间的名称,但是要注意,新修改的命名空间不能有中文,不能以数字开头并且不能包含"-"符号
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// 1.获取命名空间
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guard let nameSpace = Bundle.main.infoDictionary!["CFBundleExecutable"] as? String else {
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print("没有命名空间")
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return
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}
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// 2.根据字符串获取对应的Class
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guard let childVCClass = NSClassFromString(nameSpace + "." + childVCName) else {
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print("没有获取到字符串对应的Class")
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return
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}
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// 3.将对应的AnyObject转成控制器的类型
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guard let childVCType = childVCClass as? UIViewController.Type else {
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print("没有获取到对应控制器的类型")
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return
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}
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// 4.创建对应的控制器对象
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let childVC = childVCType.init()
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// 5.设置子控制器的属性
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childVC.title = title
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childVC.tabBarItem.image = UIImage(named: "\(imageName)_unselected")
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childVC.tabBarItem.selectedImage = UIImage(named: "\(imageName)_selected")
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childVC.view.backgroundColor = UIColor.red
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// 6.包装导航控制器
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let childNav = UINavigationController(rootViewController: childVC)
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// 7.添加控制器
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addChildViewController(childNav)
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}
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override func didReceiveMemoryWarning() {
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super.didReceiveMemoryWarning()
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// Dispose of any resources that can be recreated.
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}
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/*
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// MARK: - Navigation
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// In a storyboard-based application, you will often want to do a little preparation before navigation
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override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
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// Get the new view controller using segue.destinationViewController.
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// Pass the selected object to the new view controller.
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}
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*/
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}

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