app close after starting

[Gex Gaming]

nothing work when i start the app it close immediatly with a black screen and the text "myapp" has shutdown

i have put more than 240 image in invisible so its maybe because of this but i can't remove so what i need to do ?

[TimAI2]

Probably too many images of the wrong dimensions / size / resolution, including the app icon (no more than 96x96 png format) ?

Possibly switching screens issues, if you have more than one screen ?

Can only guess without seeing your blocks or project file (aia)

Use different screens wisely

• Before starting to create another screen, first you should think about is it really necessary? 
  
• See also Building apps with many screens and SteveJG's post about advantages/disadvantages, because in only one screen you also can use vertical arrangements to simulate different screens, just set the arrangements to visible = true/false as needed... 
  
• See also Martyn_HK's example about how to use Tabs in App Inventor and another example from Cyd. and my Tabbed Screens Demo
  

If you decided to use different screens, then you should switch them correctly, else you will run out of memory after a while...      
The recommended method of switching screens in App Inventor

(Thanks Taifun)

Also see demo: multiscreen.aia

If you haven't done it already....

Read:  The FAQ  TUTORIALS  USING IMAGES  BLOCKS  COMPONENTS  EXTENSIONS  LISTS 

[Gex Gaming]

this is my app

i have 1 screen

[Chris Ward]

Hi

Counter Strike Nexon Zombies?

The Project will not load into App Inventor on my machine (Huge Win7 workstation!).

Images

There is an issue with the images. Dimensionally, most images should be fine, looks like they are the finished size for the App?  If they are not, that's an area for improvement. Unfortunately, the images are all compressed 100%, so as the App Screen Initializes, the phone is being asked to decompress and load to memory 274 images. I think that process is a problem and in any event means the App would take an age to load. No matter how the images will be eventually handled, you need to modify them such that they are zero compression - that removes a major processor task. Also convert the JPG images to PNG.

 

See my guidelines here:

https://www.professorcad.co.uk/appinventortips#TipsImages

Blocks

Hardly any blocks, just five global variables - is that correct?

GUI

The GUI has 269 image components. Even though the images are relatively small, that is probably too many. Must have taken ages for you to get them into App Inventor. However, I think we may have to find a better way to manage the images. It's a gallery of weapons, but image components do not have an associated event, so there is no way to pick them - What are they there for? Is it just for the gamers to look-up info about the weapons available in CSNZ? If that is the case, then it might be better to assemble them in an HTML file and display that with a WebView component (html file stored on the phone, no internet required).

[TimAI2]

As Chris says loading all those images into individual image components is not the way to go about things

Delete all the image components except one

Create a list (csv) of all your images

Call the csv into your app (File component) and create a list

Assign list to a listpicker elements

Use the listpicker to allow the user to select an image from the list

Display image in remaining image component

Allow actions based upon index of image in the list

[BodyMindPower]

275 images (png) are loaded when opening the app. Although these are all invisible at first, the memory problem may arise as a result.

I could easily open the app with an offline version of AI2. Also the apk opens without problems, but the test device has enough RAM. Maybe your device has not enough RAM.

Why should all images be loaded at the same time at the beginning and why not only load them when they should be displayed? Then e.g. via a list and "image.Picture to xxx.png" ...

Anke

PS: If you are working with the online version of AI2 and you want to import an aia with so many files in the assets, you get into trouble and have to remove a lot of files before.

https://groups.google.com/forum/#!topic/mitappinventortest/FXSBKew7M88

[BodyMindPower]

Hi Tim, I have seen your suggestions too late (after my post)

[TimAI2]

:) @ Anke