Canvas are not saved

[sw311]

I saved the canvas using the code in the picture below. However, it is not displayed in the device's gallery. What's the problem? Please help me.

[Kevinkun]

pls use taifun's tools extension to refresh gallery.

[Gordon_Lu]

The Save method for the canvas differs between devices. In your instance, the canvas is not saved in your gallery, but in your internal storage. To save an image in the phone's gallery app, use this extension from @Taifun.

App Inventor Extensions: Tools | Pura Vida Apps

Saving Images to Gallery

Yes, images taken by your camera should be available through the imagepicker. Where your images are saved by the camera event may depend on your device. If you need to move them / rename them, then use Taifun’s File Extension to do this, and you may need the Gallery Refresh tool from Taifun’s Tools Extension

[sw311]

I have this tool extension. I'll try using it.

[sw311]

But, even if you use the extension function, it is not displayed in the gallery. Why did you do that? Please let me know another solution or extension to save images.

[Gordon_Lu]

Please show us your relevant blocks for using the extension.

[qwe_rfv]

you need write external storage permission to save images to gallery.
also you are using call ••••••••••• .Save wrong. to use it,

1. you have to use TinyDB (to save the image in data base like this:
   
   )
2. or use Tools Extension from @Taifun ( to save the image to gallery)(write external storage permission needed)

[TIMAI2]

@qwe_rfv

you have to use TinyDB (to save the image in data base like this:

This will only save the path as a string to the tinydb. How does this help ?

[sw311]

That's right. Even if you use this method, you won't see an image in the gallery. The same is true of Taifun's extension. I want a definite solution.

[TIMAI2]

You could always try this:

Image Grid with HTML

[image] An alternative to using the image picker/gallery, this provides a method to view all images in a directory, and select the image required for further use. Image Grid with HTML

[Anke]

See also here: How to ask a question (open new topic)

And post a test aia (with English blocks).

[sw311]

Yes, I will upload the AIA file.
CanvasSaveTest.aia (1.7 KB)

[qwe_rfv]

@TIMAI2

This will only save the path as a string to the tinydb.

I don't said TinyDB will help to save the image to gallery. I just suggested that with this way, we can see the canvas in the App later if we want.

[sw311]

So how can I store the canvas in the gallery?

[Taifun]

@sw311

how can I store the canvas in the gallery?

1, store it in a shared directory, see the overview here Some basics on Android storage system - #34 by Anke
and 2. use the GalleryRefresh method from the tools extension App Inventor Extensions: Tools | Pura Vida Apps

Taifun

[Anke]

@sw311

how can I store the canvas in the gallery?

@Taifun

store it in a shared directory

(1) The image must be saved in the Shared folder /DCIM/ (or a sub-folder) to be displayed in the Gallery (Photos), especially on Android 11+.
(2) In addition:

@Taifun

use the GalleryRefresh method from the tools extension

Tested on Android 9, 11 and 12.

Example (folder / rel. path → /DCIM/Canvas/myImage.jpg):

Note: On Android 9 (< 10) it also works with /Pictures/ or /Download/`, but not on Android 11+.