iOS Question slower app opening than other apps

S

sorex

Expert
Licensed User
Longtime User
Hello,

When I open one of the apps made by B4A I see the app load like this

(White) empty screen
a white bar appears for a few miliseconds with time, wifi, battery info
the actual app appears


When I open one of the apps that's default on the iPhone 4s they open instantly.

What is the difference between the 2?

are the pure objC compiled ones just a lot faster than what B4A creates ?
 
Sort by date Sort by votes

ilan

Expert
Licensed User
Longtime User
I am using iphone 4s and ipad2, i dont know if i can add a launch image for those devices as the tutorial talks only about iphone5/6/6+
 
Upvote 0
S

sorex

Expert
Licensed User
Longtime User
it's a 4S.

you're right, it's there for the others but not for 4.

I'll give it a try.
 
Upvote 0

Erel

B4X founder
Staff member
Licensed User
Longtime User
ilan said:
I am using iphone 4s and ipad2, i dont know if i can add a launch image for those devices as the tutorial talks only about iphone5/6/6+
Click to expand...
Read the tutorial carefully. It explains how to add the images to retina and non-retina ipads.

It also provides the details required for adding iPhone 4S images.
 
Upvote 0

ilan

Expert
Licensed User
Longtime User
Erel said:
Read the tutorial carefully. It explains how to add the images to retina and non-retina ipads.

It also provides the details required for adding iPhone 4S images.
Click to expand...

You are right, sorry...

So if i change the image i wont get a black screen at app lauch?
 
Upvote 0
S

sorex

Expert
Licensed User
Longtime User
I create a white 640x960 image and copied it to the files\special as Default@2x.png

added this to that plist file

B4X: 
    <dict>
        <key>UILaunchImageMinimumOSVersion</key>
        <string>7.0</string>
        <key>UILaunchImageName</key>
        <string>Default@2x</string>
        <key>UILaunchImageOrientation</key>
        <string>Portrait</string>
        <key>UILaunchImageSize</key>
        <string>{640, 960}</string>
    </dict>

but it's still black


maybe it conflicts with the one below that was already inthere for IOS7?

B4X: 
      <dict>
        <key>UILaunchImageMinimumOSVersion</key>
        <string>7.0</string>
        <key>UILaunchImageName</key>
        <string>Default-568h</string>
        <key>UILaunchImageOrientation</key>
        <string>Portrait</string>
        <key>UILaunchImageSize</key>
        <string>{320, 568}</string>
    </dict>
 
Upvote 0

Erel

B4X founder
Staff member
Licensed User
Longtime User
Upvote 0
S

sorex

Expert
Licensed User
Longtime User
thanks @Erel ,

the boot color is correct now.

but the black panel under the "header" is still there for about 0.5s

 
Upvote 0
S

susu

Well-Known Member
Licensed User
Longtime User
I noticed the same with my app. I think the reason is iPhone 4 is too slow, on iPhone 6 it starts immediately without "the gap".
 
Upvote 0
S

sorex

Expert
Licensed User
Longtime User
well the question is where that black gap is coming from and why I don't have that with the stock apps
 
Upvote 0
S

sorex

Expert
Licensed User
Longtime User
to be honnest, yes.

It could be some kind of malconfigured thing in the package or maybe standard behaviour.

I'll install some none B4A made app from the app store and see if they have it too.

Maybe the stock apps are kind of preloaded/prefetched during the OS boot to bypass this.
 
Upvote 0
You must log in or register to reply here.

Similar Threads

  • Article
B4A Library [B4X] Supabase - The Open Source Firebase alternative
2 3
Replies
59
Views
16K
Alexander Stolte
  • Article
Share My Creation [B4X] B4X Pleroma - open source client for Mastodon / Pleroma social networks
Replies
13
Views
14K
Erel
  • Locked
Games [XUI2D] Example Pack
2
Replies
34
Views
61K
Erel
  • Article
iOS Tutorial Open local files with external apps
2 3
Replies
42
Views
18K
Star-Dust
  • Locked
  • Article
iOS Tutorial Open external files with your app
Replies
13
Views
18K
Erel
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…