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iphone - When should I release objects in -(void)viewDidUnload rather than in -dealloc?

What is the -(void)viewDidUnload is good for? Could I not just relase everything in -dealloc? If the view did unload, wouldn't -dealloc be called anyway? Question&Answers:os...

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

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199 views

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Angularjs: input[text] ngChange fires while the value is changing

ngChange is firing while the value is changing (ngChange are not similiar to the classic onChange event). How can i ... model="name" ng-change="update()" /> Question&Answers:os...

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

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288 views

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apache - How to force https on elastic beanstalk?

I can't seem to force https on the free usage tier of elastic beanstalk. I have tried the following suggestion at ... too sure where to go from here. Thanks. Question&Answers:os...

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

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188 views

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How to launch Safari and open URL from iOS app

On the settings page, I want to include three links to My app support site YouTube app tutorial My primary site ... their Settings page, so it must be possible. Question&Answers:os...

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

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245 views

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javascript - Basic Ajax send/receive with node.js

So I'm trying to make a very basic node.js server that with take in a request for a string, randomly ... user already has an understanding of these things.) Question&Answers:os...

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

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537 views

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swift - How to create a global variable?

I have a global variable that needs to be shared among my ViewControllers. In Objective-C, I can define a static variable, ... . Do you know of a way to do it? Question&Answers:os...

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

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ios - How to NSLog into a file

Is it possible to write every NSLog not only into console, but into a file too? I want to prepare this ... for parsing data from console or catching messages? Question&Answers:os...

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

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351 views

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android - Get center visible item of RecycleView when scrolling

This is what I want: As image above, I want to draw a center line on RecycleView, then get the center item when ... to white color) when it is on the blue Rect Question&Answers:os...

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

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windows - Groovy Shell warning "Could not open/create prefs root node ..."

I tried to open the Groovy Shell (groovysh) on Windows 8 and got the following output: java.util.prefs. ... the above message the shell started as expected. Question&Answers:os...

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

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python - How to check BLAS/LAPACK linkage in NumPy and SciPy?

I am builing my numpy/scipy environment based on blas and lapack more or less based on this walk ... use the previously built blas/lapack functionalities? Question&Answers:os...

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

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253 views

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r - Skipping error in for-loop

I am doing a for loop for generating 180 graphs for my 6000 X 180 matrix (1 graph per column), some of ... helpful as well. Help would be appreciated. Thanks. Question&Answers:os...

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

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616 views

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How to output fragmented mp4 with ffmpeg?

ffmpeg -i infile.avi out.mp4 outputs non-fragmented MP4. How do I obtain fragmented mp4? Update A ... produce seekable output while producing mp4 containers. Question&Answers:os...

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

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android - Disable activity slide-in animation when launching new activity?

I have an activity which launches another activity, via a button click. By default, on newer OS versions ... activity to appear without any sort of animation. Question&Answers:os...

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

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277 views

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c++ - How do you properly use WideCharToMultiByte

I've read the documentation on WideCharToMultiByte, but I'm stuck on this parameter: lpMultiByteStr [out] Pointer ... the variable and feed it into the function Question&Answers:os...

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

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c# - How to handle click event in Button Column in Datagridview?

I am developing a windows application using C#. I am using DataGridView to display data. I have added a ... handle click event on that button in DataGridView. Question&Answers:os...

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

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520 views

1 answer

windows - How do I echo and send console output to a file in a bat script?

I have a batch script that executes a task and sends the output to a text file. Is there a way to have the ... window as well as put it into the text file? Question&Answers:os...

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

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151 views

1 answer

Gmail's new image caching is breaking image links in newsletter

I've got some automatic emails that are sent out upon signup completion for my site. Until recently, they worked ... not sure that is related to the issue. Question&Answers:os...

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

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297 views

1 answer

How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?

How do I implement the following (Python pseudocode) in C++? if argv[1].startswith('--foo='): foo_value = int( ... to link in and use Boost for a minor change). Question&Answers:os...

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

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422 views

1 answer

c++ - Program only crashes as release build -- how to debug?

I've got a "Schroedinger's Cat" type of problem here -- my program (actually the test suite for my ... Thanks everybody for your help in finding this problem! Question&Answers:os...

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

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317 views

1 answer

javascript - Access to ES6 array element index inside for-of loop

We can access array elements using a for-of loop: for (const j of [1, 2, 3, 4, 5]) { console.log( ... this using for-of syntax, neither forEach nor for-in. Question&Answers:os...

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

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169 views

1 answer

java - How to customize parameter names when binding Spring MVC command objects?

I have a command object: public class Job { private String jobType; private String location; } Which is bound ... read a custom annotation on the target object Question&Answers:os...

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

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248 views

1 answer

Xcode: code loses syntax coloring

I find that in various situations Objective-C code in Xcode 3.1 (Leopard) can fail to get appropriate ... there any command to force global syntax recoloring? Question&Answers:os...

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

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299 views

1 answer

multithreading - Java Synchronized Block for .class

What does this java code mean? Will it gain lock on all objects of MyClass? synchronized(MyClass.class) { //is ... objects of MyClass are thread-safe now ?? } Question&Answers:os...

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

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1.3k views

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installation - How to install Python packages from the tar.gz file without using pip install

Long story short my work computer has network constraints which means trying to use pip install in cmd just leads ... install on windows that would be amazing. Question&Answers:os...

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

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272 views

1 answer

When to use Spring Security`s antMatcher()?

When do we use antMatcher() vs antMatchers()? For example: http .antMatcher("/high_level_url_A/**") . ... that? Is antMatcher() no longer required? Question&Answers:os...

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

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207 views

1 answer

html - Colspan all columns

How can I specify a td tag should span all columns (when the exact amount of columns in the table will be ... Is there a more correct way of doing this? Question&Answers:os...

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

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207 views

1 answer

android - How to define different dependencies for different product flavors

I am converting one of my apps to Gradle and would like to use the new build flavor features to have a paid ... this is possible how would I define this folder? Question&Answers:os...

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

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135 views

1 answer

java - What does Serializable mean?

What exactly does it mean for a class to be Serializable in Java? Or in general, for that matter... Question&Answers:os...

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

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