Short black screen after Default.png

Solar2D iOS
#181

@Magenda  What you are describing is different than the issue that was happening on iOS builds. The problem described in this thread was:

tap > default.png > black flicker > app first screen (or manually continued default.png, then “app first screen”)

You may want to start a different thread about the issue you are experiencing. Regarding your issue though: Admittedly, I’m not a regular Android user, but in all of the dev testing I’ve ever done on (a limited number of) Android devices, I’ve only ever seen “tap > black > app first screen”. It was my understanding that Android devices don’t display the Default.png image like iOS devices do. All of my testing has been in portrait mode only (I’ve never tested an app that uses landscape mode or both).

#182

Can you clarify what you mean by “Home screen” showing up between default.png and app first screen?

Thanks

Rob

#183

Rob,

It is like the whole app starts with the black screen / default.png for 200ms, then it leaves the screen for another 200ms and you can see the device’s home screen (the wallpaper with the app icons etc) and finally it shows the first screen of the app.

It is like a flickering to the user eyes that breaks the feeling of a quick and smooth app start.

#184

Hi @Magenda.  As @drewns pointed out, Android never shows a launch image.  Because many people asked for it, Corona SDK will show a “Default.png” file if it exists and after a small delay, it transitions to the opening page  you have setup. 

I just ran several Corona SDK built apps (Portrait only too), some older some built with the latest 2511.  I didn’t see any “Home screens” between the showing of Default.png and the showing of my Main screen.  Now there appears to be a cross fade, perhaps around 300ms long, but it was pretty much just black.  This was a Google Nexus 7 1st Gen with Android 4.4 installed.

Rob

#185

@drewns

Thanks for your reply!

@Rob

Lets take this to the barebones: I’ve taken the “HelloWorld” sample project from Corona 2511 and I removed the Default-568h@2x.png file. No other changes at all! The compiled file is this apk:

https://www.dropbox.com/s/gf25zi9t70d30m0/HelloWorld1.apk?dl=0

Doesn’t get any simpler than that. No special code, no Default.png, no complexities… just a simple portrait app compiled with the newer Corona build and run on a modern android device (Snapdragon 800). 

I still see the flickering after closing the newly installed app with the task manager and running it again. The flickering is shortt (it lasts about 100ms) but it is there. During this time I can see the icons of my device homescreen.

(The same applies if I choose to leave a Default png in the project files. )

@community

Can you also see this (rapid) flickering when freshly re-running the apk above on your devices?

Compare HelloWorld.apk start with an other app’s start (not built with Corona), after you close all the apps with task manager and run them from zero.

#186

@Magenda, just tested your apk here and I didn’t see your problem.

Tested on:

Samsung Galaxy S1 (2.3.6)

Samsung Galaxy S3 (4.3)

#187

I’ve installed your .apk file on my Nexus 7 (4.4) and I don’t see any flicker.

Now I believe you are seeing something, but, it’s not something everyone is seeing and may be isolated to something going on with your device.

Rob