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App crash in iPhone4s while downloading images


App crash in iPhone4s while downloading images

By : jpalbertini
Date : November 19 2020, 01:01 AM
should help you out It sounds like your App is being killed due to memory pressure. Maybe try using an Autorelease Pool to mitigate any memory spikes, since I think what you are doing in didReceiveMemoryWarning doesn't really help in those situation.
code :


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Crash while downloading 100 images using NSThread iPhone

Crash while downloading 100 images using NSThread iPhone


By : user3392206
Date : March 29 2020, 07:55 AM
will help you I am currently working on an iPhone magazine application which downloads its magazine content from internet. The magazine pages are in image format and it has about 120 pages. , Use ASIHTTPRequest API for downloading.
App crash while downloading large images using SDWebImage?

App crash while downloading large images using SDWebImage?


By : user2976081
Date : March 29 2020, 07:55 AM
wish of those help It sounds like your App is being killed due to memory pressure. Check Instruments where exactly the memory increases and maybe try using an Autorelease Pool to mitigate any memory spikes.
Swift Alert popup is appearing in simulator iphone4s(8.1), not iphone4s (7.1)

Swift Alert popup is appearing in simulator iphone4s(8.1), not iphone4s (7.1)


By : user3266755
Date : March 29 2020, 07:55 AM
help you fix your problem UIAlertController is only available in iOS 8.0 and on wards unfortunately, here is documentation and it states this on the right: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIAlertController_class/#//apple_ref/doc/uid/TP40014538-CH1-SW2
I believe this replaced the now deprecated UIAlertView which can be found here in Apple Documentation: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIAlertView_Class/index.html#//apple_ref/occ/cl/UIAlertView
Python script in background downloading images, hangs up. How to keep downloading script running?

Python script in background downloading images, hangs up. How to keep downloading script running?


By : user3365852
Date : March 29 2020, 07:55 AM
help you fix your problem You're violating a fundamental tenet - make your try/except code as specific as possible. Right now, you're catching every single exception, and then continueing, regardless of what the error is, which is a very bad idea. Tailor your except clause to a specific error that could occur, then handle it appropriately.
Web scrapping for downloading images from NHTSA website (CIREN crash cases)

Web scrapping for downloading images from NHTSA website (CIREN crash cases)


By : user3589930
Date : March 29 2020, 07:55 AM
this one helps. This is a task that would require Selenium, but luckily there is a shortcut. On the top of the page there is a "Text and Images Only" link that goes to a page like this one: https://crashviewer.nhtsa.dot.gov/nass-CIREN/CaseForm.aspx?ViewText&CaseID=99817&xsl=textonly.xsl&websrc=true that contains all the images and text content in one page. You can select that link with soup.find('a', text='Text and Images Only').
That link and the image links are relative (links to the same site are usually relative links), so you'll have to use urljoin() to get the full urls.
code :
from bs4 import BeautifulSoup
import requests as rq
from urllib.parse import urljoin

url = 'https://crashviewer.nhtsa.dot.gov/nass-CIREN/CaseForm.aspx?xsl=main.xsl&CaseID=99817'

with rq.session() as s:
    r = s.get(url)
    soup = BeautifulSoup(r.text, "html.parser")

    url = urljoin(url, soup.find('a', text='Text and Images Only')['href'])
    r = s.get(url)
    soup = BeautifulSoup(r.text, "html.parser")

    links = [urljoin(url, i['src']) for i in soup.select('img[src^="GetBinary.aspx"]')]

    for link in links:
        content = s.get(link).content
        # write `content` to file
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