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java - What optimizations can I expect from Dalvik and the Android toolchain?

I'm working on a high-performance Android application (a game), and though I try to code for readability first, I ... someInt << 1? Etcetera... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to upload and parse a CSV file in php

I want to upload a csv file with php. After the file is uploaded, I want to display the data of the ... example how to accomplish this task. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Working of __asm__ __volatile__ ("" : : : "memory")

What basically __asm__ __volatile__ () does and what is significance of "memory" for ARM architecture? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How to update/refresh specific item in RecyclerView

I'm trying to refresh specific item in RecyclerView. Story: Whenever user clicks on item, it shows AlertDialog. ... correctly by clicking on it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vim - How to paste over without overwriting register

Does anyone know of a way to paste over a visually selected area without having the selection placed in the default ... "xp instead of just p See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - setInterval in a React app

I'm still fairly new at React, but I've been grinding along slowly and I've encountered something I'm stuck on. ... }); module.exports = Clock; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How do I unbind "hover" in jQuery?

How do I unbind "hover" in jQuery? This does not work: $(this).unbind('hover'); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to remove .htaccess password protection from a subdirectory

I have password protected my entire website using .htaccess but I would like to expose one of the sub directories ... allow,deny allow from all See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Import/Index a JSON file into Elasticsearch

I am new to Elasticsearch and have been entering data manually up until this point. For example I've done ... ensure the mapping is correct? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Is it better to use System.arraycopy(...) than a for loop for copying arrays?

I want to create a new array of objects putting together two smaller arrays. They can't be null, but size may be ... .. Now I'm really confused. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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specifications - What is the value of the css 'ex' unit?

(Not to be confused with Xunit, a popular .Net unit testing library.) Today in a fit of boredom I started ... experienced SO'ers than myself.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Have just one InfoWindow open in Google Maps API v3

I need to have only one InfoWindow open on my Google Map. I need to close all other InfoWindows before I open a ... show me how to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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SeekBar and media player in android

I have a simple player and recorder. Everything works great but have a one problem. I want to add seek bar ... place from record should play? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jax ws - java: Rpc/encoded wsdls are not supported in JAXWS 2.0

I'm using CXF 2.1 to generate java code from a wsdl, but I'm getting the following error: WSDLToJava Error: ... CXF or anything else to fix it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Import psycopg2 Library not loaded: libssl.1.0.0.dylib

When I try to run the command: import psycopg2 I get the error: ImportError: dlopen(/Users/gwulfs/anaconda/ ... .html Psycopg2 image not found See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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240 views

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ASP.NET MVC3 and Windows Auth on IIS keeps redirecting to /Account/Login

I'm running MVC3 and a windows auth web application. When I deploy to IIS6 it runs great until I hit a page ... file: http://pastie.org/1568510 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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271 views

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javascript - jQuery live scroll event on mobile (work around)

The age old problem: Getting the scroll event to fire while a user is scrolling on an element while on a mobile ... my time. Any help guys? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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665 views

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unit testing - How to assert output with nosetest/unittest in python?

I'm writing tests for a function like next one: def foo(): print 'hello world!' So when I want to ... the output with unittest or nose module? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - ViewModel validation for a List

I have the following viewmodel definition public class AccessRequestViewModel { public Request Request { get; private set; ... is required"); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Bind failed: Address already in use

I am attempting to bind a socket to a port below: if( bind(socket_desc,(struct sockaddr *) &server, sizeof( ... use Why does this error occur? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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250 views

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Javascript prototype operator performance: saves memory, but is it faster?

I read here (Douglas Crockford) using prototype operator to add methods to Javascript classes saves also memory. ... instance of the object. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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365 views

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How to show animated image from PNG image using javascript? [ like gmail ]

First of all,check out this image Gmail uses this image to display the animated emoticon. How can we show such animation using a png image? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '='

Error message on MySql: Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for ... be much appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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347 views

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php - You must enable the openssl extension to download files via https

I wanted to install Zend Framework 2. So I downloaded the skeleton application. As mentioned in the ZF2 manual, we ... clue what I missed out? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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956 views

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angular - Angular2 add class to body tag

How can I add a class to the body tag without making the body as the app selector and using host binding ... want the document scrollbar to hide See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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433 views

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javascript - How to get the size of single document in Mongodb?

I encountered a strange behavior of mongo and I would like to clarify it a bit... My request is simple as that: I ... .find({test:"auto"})) 481 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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941 views

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javascript - react.js Replace img src onerror

I have a react component that is the detail view from a list. I am trying to replace the image with a default ... ); } } export default Contact; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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607 views

1 answer

iphone - How to add a 'Done' button to numpad keyboard in iOS

So, the numpad keyboard doesn't come with a 'Done' or 'Next' button by default so I'd like to add one. In iOS ... poor (and it is kind of ugly). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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