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extension AVCaptureDevice {

    /// http://stackoverflow.com/questions/21612191/set-a-custom-avframeraterange-for-an-avcapturesession#27566730
    func configureDesiredFrameRate(_ desiredFrameRate: Int) {

        var isFPSSupported = false

        do {

            if let videoSupportedFrameRateRanges = activeFormat.videoSupportedFrameRateRanges as? [AVFrameRateRange] {

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//
//  TransitionComposition.swift
//  MED
//
//  Created by Limon on 7/26/16.
//  Copyright © 2016 MED. All rights reserved.
//

import AVFoundation

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//
//  CyanifyOperation.swift
//  MED
//
//  Created by Limon on 2016/7/19.
//  Copyright © 2016年 MED. All rights reserved.
//

import AVFoundation
import Dispatch

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//
//  Segment.swift
//  MED
//
//  Created by Limon on 6/28/16.
//  Copyright © 2016 MED. All rights reserved.
//

import AVFoundation

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//
//  main.swift
//  mutablecomposition
//
//  Created by Kevin Meaney on 24/08/2015.
//  Copyright (c) 2015 Kevin Meaney. All rights reserved.
//

import Foundation

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    import AVFoundation.AVMediaFormat
    enum MediaFormat {
        case MOV
        case MP4
        case M4V

        var filenameExtension: String {
            switch self {
 case .MOV:

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# Tips from: http://xcodehelp.blogspot.ie/2012/05/add-version-number-to-settings-screen.html
# Reference from: https://developer.apple.com/library/mac/documentation/DeveloperTools/Reference/XcodeBuildSettingRef/1-Build_Setting_Reference/build_setting_ref.html

# Get the correct path for the git binary
git=`sh /etc/profile; which git`

# Save paths for the project and target Info.plist
projectPlistPath="${PROJECT_DIR}/${INFOPLIST_FILE}"
targetPlistPath="${TARGET_BUILD_DIR}/${INFOPLIST_PATH}"

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#import <Foundation/Foundation.h>
#include <dlfcn.h>

NSDictionary *FCPrivateBatteryStatus()
{
    static mach_port_t *s_kIOMasterPortDefault;
    static kern_return_t (*s_IORegistryEntryCreateCFProperties)(mach_port_t entry, CFMutableDictionaryRef *properties, CFAllocatorRef allocator, UInt32 options);
    static mach_port_t (*s_IOServiceGetMatchingService)(mach_port_t masterPort, CFDictionaryRef matching CF_RELEASES_ARGUMENT);
    static CFMutableDictionaryRef (*s_IOServiceMatching)(const char *name);

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假设服务器返回以上的JSON，客户端需要根据文章类型来作不同的布局。

enum Occupation: String {
  case AppSo = "app"
  case Number = "number"
}

let typeString = "mindStore"

switch Occupation(rawValue: typeString) {

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Producter Tips

extension NSURL {
    var prt_URLItems: [String: String]? {

        let components = NSURLComponents(URL: self, resolvingAgainstBaseURL: false)

        guard let items = components?.queryItems else {
 return nil