Presenting a UIImagePickerController is quite slow












-3















My phone has about 2000 photos. When I present a UIImagePickerController, it takes ~3-4 seconds. How can I optimize this operation?



Thank you.










share|improve this question

























  • Is this Issue in your actual device ?

    – Vicky_Vignesh
    Nov 19 '18 at 6:49











  • what type of iPhone?

    – Vanya
    Nov 19 '18 at 8:46











  • you should include more details about your situation, what are you trying to achieve, a snippet of your code, anything that can help pinpoint what might be the problem, more often than not, the assumption of the problem is not the real problem, The UIImagePickerController displays a list of assets that have cached thumbnails, such a list should work smoothly regardless of the amount of photos on the device, most likely, there is a problem in your code that denies the UIImagePickerController to pop up when you click on the import button, sharing you code/implementation will probably help

    – Samer Murad
    Nov 19 '18 at 8:55











  • Yes, my iphone 6.

    – porthuas
    Nov 20 '18 at 3:41











  • Sadly, this is just a side effect of using a UIImagePickerController. You can handle this issue by implementing a custom image picker which uses a more efficient image loading or simply displaying an activity indicator to let the user know that it's loading.

    – Tamás Sengel
    Nov 20 '18 at 13:04


















-3















My phone has about 2000 photos. When I present a UIImagePickerController, it takes ~3-4 seconds. How can I optimize this operation?



Thank you.










share|improve this question

























  • Is this Issue in your actual device ?

    – Vicky_Vignesh
    Nov 19 '18 at 6:49











  • what type of iPhone?

    – Vanya
    Nov 19 '18 at 8:46











  • you should include more details about your situation, what are you trying to achieve, a snippet of your code, anything that can help pinpoint what might be the problem, more often than not, the assumption of the problem is not the real problem, The UIImagePickerController displays a list of assets that have cached thumbnails, such a list should work smoothly regardless of the amount of photos on the device, most likely, there is a problem in your code that denies the UIImagePickerController to pop up when you click on the import button, sharing you code/implementation will probably help

    – Samer Murad
    Nov 19 '18 at 8:55











  • Yes, my iphone 6.

    – porthuas
    Nov 20 '18 at 3:41











  • Sadly, this is just a side effect of using a UIImagePickerController. You can handle this issue by implementing a custom image picker which uses a more efficient image loading or simply displaying an activity indicator to let the user know that it's loading.

    – Tamás Sengel
    Nov 20 '18 at 13:04
















-3












-3








-3








My phone has about 2000 photos. When I present a UIImagePickerController, it takes ~3-4 seconds. How can I optimize this operation?



Thank you.










share|improve this question
















My phone has about 2000 photos. When I present a UIImagePickerController, it takes ~3-4 seconds. How can I optimize this operation?



Thank you.







ios uiimagepickercontroller






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 20 '18 at 13:05









Tamás Sengel

27.2k147395




27.2k147395










asked Nov 19 '18 at 6:45









porthuasporthuas

62




62













  • Is this Issue in your actual device ?

    – Vicky_Vignesh
    Nov 19 '18 at 6:49











  • what type of iPhone?

    – Vanya
    Nov 19 '18 at 8:46











  • you should include more details about your situation, what are you trying to achieve, a snippet of your code, anything that can help pinpoint what might be the problem, more often than not, the assumption of the problem is not the real problem, The UIImagePickerController displays a list of assets that have cached thumbnails, such a list should work smoothly regardless of the amount of photos on the device, most likely, there is a problem in your code that denies the UIImagePickerController to pop up when you click on the import button, sharing you code/implementation will probably help

    – Samer Murad
    Nov 19 '18 at 8:55











  • Yes, my iphone 6.

    – porthuas
    Nov 20 '18 at 3:41











  • Sadly, this is just a side effect of using a UIImagePickerController. You can handle this issue by implementing a custom image picker which uses a more efficient image loading or simply displaying an activity indicator to let the user know that it's loading.

    – Tamás Sengel
    Nov 20 '18 at 13:04





















  • Is this Issue in your actual device ?

    – Vicky_Vignesh
    Nov 19 '18 at 6:49











  • what type of iPhone?

    – Vanya
    Nov 19 '18 at 8:46











  • you should include more details about your situation, what are you trying to achieve, a snippet of your code, anything that can help pinpoint what might be the problem, more often than not, the assumption of the problem is not the real problem, The UIImagePickerController displays a list of assets that have cached thumbnails, such a list should work smoothly regardless of the amount of photos on the device, most likely, there is a problem in your code that denies the UIImagePickerController to pop up when you click on the import button, sharing you code/implementation will probably help

    – Samer Murad
    Nov 19 '18 at 8:55











  • Yes, my iphone 6.

    – porthuas
    Nov 20 '18 at 3:41











  • Sadly, this is just a side effect of using a UIImagePickerController. You can handle this issue by implementing a custom image picker which uses a more efficient image loading or simply displaying an activity indicator to let the user know that it's loading.

    – Tamás Sengel
    Nov 20 '18 at 13:04



















Is this Issue in your actual device ?

– Vicky_Vignesh
Nov 19 '18 at 6:49





Is this Issue in your actual device ?

– Vicky_Vignesh
Nov 19 '18 at 6:49













what type of iPhone?

– Vanya
Nov 19 '18 at 8:46





what type of iPhone?

– Vanya
Nov 19 '18 at 8:46













you should include more details about your situation, what are you trying to achieve, a snippet of your code, anything that can help pinpoint what might be the problem, more often than not, the assumption of the problem is not the real problem, The UIImagePickerController displays a list of assets that have cached thumbnails, such a list should work smoothly regardless of the amount of photos on the device, most likely, there is a problem in your code that denies the UIImagePickerController to pop up when you click on the import button, sharing you code/implementation will probably help

– Samer Murad
Nov 19 '18 at 8:55





you should include more details about your situation, what are you trying to achieve, a snippet of your code, anything that can help pinpoint what might be the problem, more often than not, the assumption of the problem is not the real problem, The UIImagePickerController displays a list of assets that have cached thumbnails, such a list should work smoothly regardless of the amount of photos on the device, most likely, there is a problem in your code that denies the UIImagePickerController to pop up when you click on the import button, sharing you code/implementation will probably help

– Samer Murad
Nov 19 '18 at 8:55













Yes, my iphone 6.

– porthuas
Nov 20 '18 at 3:41





Yes, my iphone 6.

– porthuas
Nov 20 '18 at 3:41













Sadly, this is just a side effect of using a UIImagePickerController. You can handle this issue by implementing a custom image picker which uses a more efficient image loading or simply displaying an activity indicator to let the user know that it's loading.

– Tamás Sengel
Nov 20 '18 at 13:04







Sadly, this is just a side effect of using a UIImagePickerController. You can handle this issue by implementing a custom image picker which uses a more efficient image loading or simply displaying an activity indicator to let the user know that it's loading.

– Tamás Sengel
Nov 20 '18 at 13:04














1 Answer
1






active

oldest

votes


















0














Write the code of UIImagePickerController inside the DispatchQueue.



DispatchQueue.main.async {
//UIImagePickerController code goes here
}





share|improve this answer





















  • 1





    Can you explain how and why this makes anything faster?

    – Gereon
    Nov 19 '18 at 10:57











  • Will it block the main thread?

    – porthuas
    Nov 20 '18 at 3:39











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53369568%2fpresenting-a-uiimagepickercontroller-is-quite-slow%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














Write the code of UIImagePickerController inside the DispatchQueue.



DispatchQueue.main.async {
//UIImagePickerController code goes here
}





share|improve this answer





















  • 1





    Can you explain how and why this makes anything faster?

    – Gereon
    Nov 19 '18 at 10:57











  • Will it block the main thread?

    – porthuas
    Nov 20 '18 at 3:39
















0














Write the code of UIImagePickerController inside the DispatchQueue.



DispatchQueue.main.async {
//UIImagePickerController code goes here
}





share|improve this answer





















  • 1





    Can you explain how and why this makes anything faster?

    – Gereon
    Nov 19 '18 at 10:57











  • Will it block the main thread?

    – porthuas
    Nov 20 '18 at 3:39














0












0








0







Write the code of UIImagePickerController inside the DispatchQueue.



DispatchQueue.main.async {
//UIImagePickerController code goes here
}





share|improve this answer















Write the code of UIImagePickerController inside the DispatchQueue.



DispatchQueue.main.async {
//UIImagePickerController code goes here
}






share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 19 '18 at 8:41









Kuldeep

2,49441634




2,49441634










answered Nov 19 '18 at 7:07









SAIFSAIF

266




266








  • 1





    Can you explain how and why this makes anything faster?

    – Gereon
    Nov 19 '18 at 10:57











  • Will it block the main thread?

    – porthuas
    Nov 20 '18 at 3:39














  • 1





    Can you explain how and why this makes anything faster?

    – Gereon
    Nov 19 '18 at 10:57











  • Will it block the main thread?

    – porthuas
    Nov 20 '18 at 3:39








1




1





Can you explain how and why this makes anything faster?

– Gereon
Nov 19 '18 at 10:57





Can you explain how and why this makes anything faster?

– Gereon
Nov 19 '18 at 10:57













Will it block the main thread?

– porthuas
Nov 20 '18 at 3:39





Will it block the main thread?

– porthuas
Nov 20 '18 at 3:39


















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53369568%2fpresenting-a-uiimagepickercontroller-is-quite-slow%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

Guess what letter conforming each word

Run scheduled task as local user group (not BUILTIN)

Port of Spain