kingiol

//
//  MyMetalWaterfall.swift
//    version 0.1.104
//
//  Demonstrates using a MetalKit compute shader to render a live waterfall 
//     RGB spectrogram bitmap from iOS RemoteIO audio input into a UIView
//
//  This is a single file iOS app (it only compiles for iOS devices, not the Simulator)
//
//  It includes AppDelegate for a minimal demonstration app

kingiol

//    - (UIWindow *)frontWindow {
//    #if !defined(SV_APP_EXTENSIONS)
//    NSEnumerator *frontToBackWindows = [UIApplication.sharedApplication.windows reverseObjectEnumerator];
//    for (UIWindow *window in frontToBackWindows) {
//    BOOL windowOnMainScreen = window.screen == UIScreen.mainScreen;
//    BOOL windowIsVisible = !window.hidden && window.alpha > 0;
//    BOOL windowLevelSupported = (window.windowLevel >= UIWindowLevelNormal && window.windowLevel <= self.maxSupportedWindowLevel);
//    BOOL windowKeyWindow = window.isKeyWindow;
//
//    if(windowOnMainScreen && windowIsVisible && windowLevelSupported && windowKeyWindow) {

kingiol

#  Copyright (c) 2015 Bent Cardan

#  Permission is hereby granted, free of charge, to any person obtaining a copy
#  of this software and associated documentation files (the "Software"),
#  to deal in the Software without restriction, including without limitation
#  the rights to use, copy, modify, merge, publish, distribute, sublicense,
#  and/or sell copies of the Software, and to permit persons to whom
#  the Software is furnished to do so, subject to the following conditions:

kingiol

infix operator ???: NilCoalescingPrecedence

public func ???<T>(optional: T?, defaultValue: @autoclosure () -> String) -> String {
    switch optional {
    case let value?:
        return String(describing: value)
    case nil:
        return defaultValue()
    }
}

kingiol

import Foundation

public class Storage {
    
    fileprivate init() { }
    
    enum Directory {
        // Only documents and other data that is user-generated, or that cannot otherwise be recreated by your application, should be stored in the <Application_Home>/Documents directory and will be automatically backed up by iCloud.
        case documents
        

kingiol

func hierarchyOfView(_ view: UIView, level: Int = 1) {
    let subviews = view.subviews
    if subviews.isEmpty { return }

    for subview in subviews {
        var blank = ""
        for _ in 1..<level {
            blank += "-"
        }

kingiol

//
//  ViewController.m
//  AVPlayerCaching
//
//  Created by Anurag Mishra on 5/19/14.
//  Sample code to demonstrate how to cache a remote audio file while streaming it with AVPlayer
//

#import "ViewController.h"
#import <AVFoundation/AVFoundation.h>

kingiol

【iOS中有关键盘事件】

let notificationCenter = NSNotificationCenter.defaultCenter()
        notificationCenter.addObserver(self, selector: "adjustForKeyboard:", name: UIKeyboardWillHideNotification, object: nil)
        notificationCenter.addObserver(self, selector: "adjustForKeyboard:", name: UIKeyboardWillChangeFrameNotification, object: nil)


func adjustForKeyboard(notification: NSNotification) {
        let userInfo = notification.userInfo!
        

kingiol

UIDevice *device = [UIDevice currentDevice];					//Get the device object
        [device beginGeneratingDeviceOrientationNotifications];			//Tell it to start monitoring the accelerometer for orientation
        NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];	//Get the notification centre for the app
        [nc addObserver:self											//Add yourself as an observer
               selector:@selector(orientationChanged:)
                   name:UIDeviceOrientationDidChangeNotification
                 object:device];
                 
                 
                 

kingiol

@implementation NSString (Range)

- (NSArray *)rangesOfString:(NSString *)substring {

    if (self.length == 0 || substring.length == 0)
        return @[];

    NSRange searchRange = NSMakeRange(0, self.length - 1);
    NSMutableArray *ranges = [@[] mutableCopy];
    while (searchRange.location < self.length) {