pass

Can't pass Date to NSPredicate(format: …) without “as CVarArg”

匿名 (未验证) 提交于 2019-12-03 08:36:05
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Is this how I'm supposed to pass a Date to NSPredicate.init(format predicateFormat: String, arguments argList: CVaListPointer) . let endDate = Date() NSPredicate(format: "endDate == %@", endDate as CVarArg) It looks kinda clumsy, and I suspect I'm doing something wrong. 回答1: The %@ format expect a Foundation object as argument, compare "Predicate Format String Syntax" in the "Predicate Programming Guide". Therefore you have to cast the overlay type Date back to its Foundation counterpart NSDate : let endDate = Date() let pred = NSPredicate

Libev, How to pass arguments to relevant callbacks

匿名 (未验证) 提交于 2019-12-03 08:33:39
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm trapped in a situation of argument passing in libev. Usually, libev receives packages in a function like *receive_callback* , that's OK, but in practice, we need to dispatch a relative *write_callback* to deal with specific jobs according to the received package. For example: S_RECV_MSG * pstRecvMsg = ( S_RECV_MSG *) recv_buff ; switch ( pstRecvMsg -> wMsgType ) { case 1 : ev_io_init ( w , write_callback1 , w -> fd , EV_WRITE ); break ; case 2 : ev_io_init ( w , write_callback2 , w -> fd , EV_WRITE ); break ; case 3 : // ......

How to pass the NSString from One UIViewController to Another UIViewController? [duplicate]

匿名 (未验证) 提交于 2019-12-03 08:33:39
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Possible Duplicate: iOS - Passing variable to view controller I have two Viewcontrollers (ViewController1 and ViewController2) , And i want to pass a String value along with a IBAction from ViewController1 to ViewController2. I am trying to read the NSString (*check) value in ViewController2's ViewDidLoad method, but it's returning a null value. Help me out and Thanks in advance. // ViewController1 @interface ViewController1 : UIViewController { IBOutlet UIButton * btn1 ; IBOutlet UIButton * btn2 ; NSString * check ; } #import

Python Multiprocessing - How to pass kwargs to function?

匿名 (未验证) 提交于 2019-12-03 08:30:34
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: How do I pass a dictionary to a function with Python's Multiprocessing? The Documentation: https://docs.python.org/3.4/library/multiprocessing.html#reference says to pass a dictionary, but I keep getting TypeError: fp() got multiple values for argument 'what' Here's the code: from multiprocessing import Pool, Process, Manager def fp(name, numList=None, what='no'): print ('hello %s %s'% (name, what)) numList.append(name+'44') if __name__ == '__main__': manager = Manager() numList = manager.list() for i in range(10): keywords = {'what':'yes'}

React react-router-dom pass props to component

匿名 (未验证) 提交于 2019-12-03 08:30:34
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I need to pass props to component using router. Here's my code: import React, { Component, PropTypes } from 'react'; import { connect } from 'react-redux'; import AppBarTop from './appbar/AppBarTop'; import Login from '../pages/login/Login'; import {BrowserRouter as Router, Route} from 'react-router-dom'; class App extends Component { render() { const { isAuthenticated } = this.props; return ( ); } } As you can see, isAuthenticated the prop i want to pass to Login component. class Login extends Component { constructor(props) { super(props);

How to pass params[:search] with autocomplete_field_tag?

匿名 (未验证) 提交于 2019-12-03 07:50:05
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am using the Crowdint rails3 jquery autocomplete and having trouble with my search form. This is how my search form looks without autocomplete: <%= form_tag search_path , : method => 'get' do %> <%= text_field_tag : search , params [: search ], : placeholder => "Search for a Product....." , : id => "main-search-field" %> <%= submit_tag "Search" , : name => nil , : id => "main-search-field-button" %> <% end %> Now when I change around the form for autocomplete and search: <%= form_tag search_path , : method => 'get' do %> <%=

Android Wear Overlay Pass on Touch Events

匿名 (未验证) 提交于 2019-12-03 07:50:05
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have an Android Wear app in which I use a transparent overlay view to recieve touch events. I need to be able to receive all touch events that happen anywhere on the screen, and also be able to see their coordinates. All research I have found says that I cannot recieve all touch events and pass them on. However, Wear Mini Launcher and Swipify are both doing something like this. Here is where I have looked: Android overlay to grab ALL touch, and pass them on? https://stackoverflow.com/questions/19356834/overlay-view-which-intercepts-some

Pass data from tableview to tab bar view controller in Swift.

匿名 (未验证) 提交于 2019-12-03 07:50:05
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: At my storyboard I have a part where a view controller with a table view is placed before a tab bar controller. This tab bar has two view controllers. Earlier I used the table view already, and when I clicked on one cell I passed to another Viewcontroller which loaded another view controller with table and cells with the id from the pushed cell from the first table. Like this: The tableview controller, prepare for segue: if segue.identifier == "overviewSegue" { var caseViewController: CaseViewController = segue.destinationViewController as

Python3命名规范

筅森魡賤 提交于 2019-12-03 07:08:02
1、模块 模块尽量使用小写命名,首字母保持小写,尽量不要用下划线(除非多个单词,且数量不多的情况) 1 # 正确的模块名 2 import decoder 3 import html_parser 4 5 # 不推荐的模块名 6 import Decoder 2、类名 类名使用驼峰(CamelCase)命名风格,首字母大写,私有类可用一个下划线开头 class Farm(): pass class AnimalFarm(Farm): pass class _PrivateFarm(Farm): pass 将相关的类和顶级函数放在同一个模块里. 不像Java, 没必要限制一个类一个模块. 3、函数 函数名一律小写,如有多个单词,用下划线隔开 1 def run(): 2 pass 3 4 def run_with_env(): 5 pass 私有函数在函数前加一个下划线_ 1 class Person(): 2 3 def _private_func(): 4 pass 4、变量名 变量名尽量小写, 如有多个单词,用下划线隔开 1 if __name__ == '__main__': 2 count = 0 3 school_name = '' 常量采用全大写,如有多个单词,使用下划线隔开 1 MAX_CLIENT = 100 2 MAX_CONNECTION = 1000 3

What is causing this strange Mathematica result?

匿名 (未验证) 提交于 2019-12-03 03:10:03
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I've run into what seems like a bug in Mathematica 8. I can't find anything related to it online, but I admit I'm not exactly sure what to search for. If I run this statement: 0.05 + . 10 /. { 0.15 -> "pass" } 1.04 + . 10 /. { 1.14 -> "pass" } 1.05 + . 10 /. { 1.15 -> "pass" } 1.15 /. { 1.15 -> "pass" } I get this output: pass pass 1.15 pass Am I just overlooking something? Edit: After reading the helpful discussion below, I changed my dispatch table to use a Which statement instead: f [ x_ ] := Which [ x == 1.05 , - 1.709847 , x =