michaeldong’s gists

michaeldong / gist:2cb735551e6e108d7b016125b01ab775

Last active February 20, 2020 06:32

renderdemo

	import React from 'react';
	import {View, TouchableOpacity} from 'react-native';

	export default class TestRender extends React.Component {
	render() {
	return (
	<View style={{ backgroundColor: 'white', paddingTop: 64,}} testID="white">
	<View style={{ backgroundColor: "yellow",width: 50, height: 50}} testID="white-yellow"/>
	<View
	style={{backgroundColor: 'green',width: 100, height: 100,justifyContent:"center",alignItems:"center"}} testID="white-green"

michaeldong / UIApplication+TopViewController.swift

Created January 24, 2019 08:12 — forked from houze2311/UIApplication+TopViewController.swift

	import UIKit

	extension UIApplication {

	class func topViewController(_ base: UIViewController? = UIApplication.shared.keyWindow?.rootViewController) -> UIViewController? {

	if let navigationController = base as? UINavigationController, navigationController.viewControllers.count > 0 {
	return topViewController(navigationController.visibleViewController)
	}

michaeldong / .m

Last active November 9, 2018 02:19

weex read local image


	if([url.scheme isEqualToString:@"file"]) {
	NSString *fileName = [NSString stringWithFormat:@"%@@3x", url.host];
	NSString *file = [[NSBundle mainBundle] pathForResource:fileName ofType:@"png"];

	if(file != nil) {
	url = [NSURL fileURLWithPath:file];
	}
	else {
	NSInteger prefixLength = @"file://".length + url.host.length + @"/".length;

michaeldong / UIImage+PixedColor.swift

Created October 1, 2017 04:06

Pixel Color from UIImage by subscript swift 4

	// Created by michaelxing on 2017/9/30.
	// Copyright © 2017年 michaelxing. All rights reserved.

	import UIKit

	extension UIImage {

	subscript(x: Int, y: Int) -> UIColor? {
	get {
	if x < 0 \|\| x > Int(size.width) \|\| y < 0 \|\| y > Int(size.height) {

michaeldong / PSPDFUIKitMainThreadGuard.m

Created December 23, 2015 07:58 — forked from steipete/PSPDFUIKitMainThreadGuard.m

This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…

	// Taken from the commercial iOS PDF framework http://pspdfkit.com.
	// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
	// Licensed under MIT (http://opensource.org/licenses/MIT)
	//
	// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.

	#import <objc/runtime.h>
	#import <objc/message.h>

	// Compile-time selector checks.

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