AppInventor 2: resize image (Canvas) proportionally to fill the space
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I have Canvas with BackgroundImage (selected by user) that should fill all available space.
But if I set Canvas Height/Width to Fill it becomes simply stretched non-proportionally.
And with Automatic it's too small for some reason, much smaller than the original image (tested in Genymotion emulator and on OnePlus 3T with Android 8, in both screen orientations).
Is it possible to resize it to max possible size while keeping the aspect ratio?
It would be easy if I could get the image size in blocks, but I don't see any way to do it. I also tried to use Canvas Width/Height but looks like they are not updated immediately after setting the image (during screen initialization) and I don't see any other events.
android app-inventor asked Nov 22 at 12:45
AlexP11223
1,59062873
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up vote
0
down vote
favorite
I have Canvas with BackgroundImage (selected by user) that should fill all available space.
But if I set Canvas Height/Width to Fill it becomes simply stretched non-proportionally.
And with Automatic it's too small for some reason, much smaller than the original image (tested in Genymotion emulator and on OnePlus 3T with Android 8, in both screen orientations).
Is it possible to resize it to max possible size while keeping the aspect ratio?
It would be easy if I could get the image size in blocks, but I don't see any way to do it. I also tried to use Canvas Width/Height but looks like they are not updated immediately after setting the image (during screen initialization) and I don't see any other events.
android app-inventor asked Nov 22 at 12:45
AlexP11223
1,59062873
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 at 13:52
sorry about that, I just removed the link... great that you found the solution using a clock component now...
– Taifun
Nov 24 at 16:29
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have Canvas with BackgroundImage (selected by user) that should fill all available space.
But if I set Canvas Height/Width to Fill it becomes simply stretched non-proportionally.
And with Automatic it's too small for some reason, much smaller than the original image (tested in Genymotion emulator and on OnePlus 3T with Android 8, in both screen orientations).
Is it possible to resize it to max possible size while keeping the aspect ratio?
It would be easy if I could get the image size in blocks, but I don't see any way to do it. I also tried to use Canvas Width/Height but looks like they are not updated immediately after setting the image (during screen initialization) and I don't see any other events.
android app-inventor asked Nov 22 at 12:45
AlexP11223
1,59062873
I have Canvas with BackgroundImage (selected by user) that should fill all available space.
But if I set Canvas Height/Width to Fill it becomes simply stretched non-proportionally.
And with Automatic it's too small for some reason, much smaller than the original image (tested in Genymotion emulator and on OnePlus 3T with Android 8, in both screen orientations).
Is it possible to resize it to max possible size while keeping the aspect ratio?
It would be easy if I could get the image size in blocks, but I don't see any way to do it. I also tried to use Canvas Width/Height but looks like they are not updated immediately after setting the image (during screen initialization) and I don't see any other events.
android app-inventor android app-inventor asked Nov 22 at 12:45
AlexP11223
1,59062873
asked Nov 22 at 12:45
AlexP11223
1,59062873
asked Nov 22 at 12:45
AlexP11223
1,59062873
asked Nov 22 at 12:45
AlexP11223
1,59062873
asked Nov 22 at 12:45
AlexP11223
1,59062873
1,59062873
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 at 13:52
sorry about that, I just removed the link... great that you found the solution using a clock component now...
– Taifun
Nov 24 at 16:29
add a comment |
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 at 13:52
sorry about that, I just removed the link... great that you found the solution using a clock component now...
– Taifun
Nov 24 at 16:29
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 at 6:17
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 at 13:52
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 at 13:52
sorry about that, I just removed the link... great that you found the solution using a clock component now...
– Taifun
Nov 24 at 16:29
sorry about that, I just removed the link... great that you found the solution using a clock component now...
– Taifun
Nov 24 at 16:29
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
accepted
Solved it using Clock (timer with small interval, such as 100).
It seems to work as expected on the image from my question (1920x1080). However on some images I noticed strange issues with quality, like it was a small image resized to much bigger size (especially noticeable on images containing text) even though it works fine in other viewers. But it's probably not related to this resizing (I even tried to clear and set BackgroundImage again after resizing), here is a similar report: https://groups.google.com/forum/#!topic/mitappinventortest/_Iro4UKNE1Q
answered Nov 22 at 22:02
AlexP11223
1,59062873
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 at 6:15
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
accepted
Solved it using Clock (timer with small interval, such as 100).
It seems to work as expected on the image from my question (1920x1080). However on some images I noticed strange issues with quality, like it was a small image resized to much bigger size (especially noticeable on images containing text) even though it works fine in other viewers. But it's probably not related to this resizing (I even tried to clear and set BackgroundImage again after resizing), here is a similar report: https://groups.google.com/forum/#!topic/mitappinventortest/_Iro4UKNE1Q
answered Nov 22 at 22:02
AlexP11223
1,59062873
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 at 6:15
add a comment |
up vote
0
down vote
accepted
Solved it using Clock (timer with small interval, such as 100).
It seems to work as expected on the image from my question (1920x1080). However on some images I noticed strange issues with quality, like it was a small image resized to much bigger size (especially noticeable on images containing text) even though it works fine in other viewers. But it's probably not related to this resizing (I even tried to clear and set BackgroundImage again after resizing), here is a similar report: https://groups.google.com/forum/#!topic/mitappinventortest/_Iro4UKNE1Q
answered Nov 22 at 22:02
AlexP11223
1,59062873
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 at 6:15
add a comment |
up vote
0
down vote
accepted
up vote
0
down vote
accepted
Solved it using Clock (timer with small interval, such as 100).
It seems to work as expected on the image from my question (1920x1080). However on some images I noticed strange issues with quality, like it was a small image resized to much bigger size (especially noticeable on images containing text) even though it works fine in other viewers. But it's probably not related to this resizing (I even tried to clear and set BackgroundImage again after resizing), here is a similar report: https://groups.google.com/forum/#!topic/mitappinventortest/_Iro4UKNE1Q
answered Nov 22 at 22:02
AlexP11223
1,59062873
Solved it using Clock (timer with small interval, such as 100).
It seems to work as expected on the image from my question (1920x1080). However on some images I noticed strange issues with quality, like it was a small image resized to much bigger size (especially noticeable on images containing text) even though it works fine in other viewers. But it's probably not related to this resizing (I even tried to clear and set BackgroundImage again after resizing), here is a similar report: https://groups.google.com/forum/#!topic/mitappinventortest/_Iro4UKNE1Q
answered Nov 22 at 22:02
AlexP11223
1,59062873
edited Nov 23 at 10:26
answered Nov 22 at 22:02
AlexP11223
1,59062873
answered Nov 22 at 22:02
AlexP11223
1,59062873
answered Nov 22 at 22:02
AlexP11223
1,59062873
1,59062873
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 at 6:15
add a comment |
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 at 6:15
1
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 at 22:26
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 at 6:15
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 at 6:15
add a comment |
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@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 at 13:52
sorry about that, I just removed the link... great that you found the solution using a clock component now...
– Taifun
Nov 24 at 16:29