Skip to content

Latest commit

 

History

History
77 lines (47 loc) · 2.45 KB

NOTES.md

File metadata and controls

77 lines (47 loc) · 2.45 KB
Raw

WKWebView problem

WKWebView cannot load files using file:// URL protocol since iOS 8 beta 4 and 5 http://www.openradar.me/18039024

Fixed since iOS 9

Cordova WKWebView Engine

This plugin makes Cordova use the WKWebView component instead of the default UIWebView component, and is installable only on a system with the iOS 9.0 SDK.

https://github.com/apache/cordova-plugin-wkwebview-engine

综上， 就是说要用得上 WKWebView的高级性能，需要至少 iOS 9。 否则的话，打不开file://文件的话，就没办法加载cordova的文件（用它所说的local webserver就太恶心了）

react-native (RN)

假设ACE.V3/MKC.V2

sth about block in objc

How Do I Declare A Block in Objective-C?

As a local variable:

returnType (^blockName)(parameterTypes) = ^returnType(parameters) {...}; As a property:

@property (nonatomic, copy, nullability) returnType (^blockName)(parameterTypes); As a method parameter:

  • (void)someMethodThatTakesABlock:(returnType (^nullability)(parameterTypes))blockName; As an argument to a method call:

[someObject someMethodThatTakesABlock:^returnType (parameters) {...}]; As a typedef:

typedef returnType (^TypeName)(parameterTypes); TypeName blockName = ^returnType(parameters) {...}; This site is not intended to be an exhaustive list of all possible uses of blocks. If you find yourself needing syntax not listed here, it is likely that a typedef would make your code more readable.

Unable to access this site due to the profanity in the URL? http://goshdarnblocksyntax.com is a more work-friendly mirror. By Mike Lazer-Walker, who has a very bad memory for this sort of thing.

threading

async or after

//    // 创建队列
//    dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
//    // 设置延时，单位秒
//    double delay = 1;

//    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delay * NSEC_PER_SEC)), queue, ^{
// 3秒后需要执行的任务


//    dispatch_async(dispatch_get_main_queue(), ^{

//    });
	#warning important for callback : run on ui thread
    //        if ([[NSThread currentThread] isMainThread]) {
    //            [self _evaluateJavascript:javascriptCommand];
    //
    //        } else {
    //            dispatch_sync(dispatch_get_main_queue(), ^{
    //                [self _evaluateJavascript:javascriptCommand];
    //            });
    //        }