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 '18 at 12:45
AlexP11223AlexP11223
1,68363075
add a comment |
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 '18 at 12:45
AlexP11223AlexP11223
1,68363075
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 '18 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 '18 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 '18 at 16:29
add a comment |
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 '18 at 12:45
AlexP11223AlexP11223
1,68363075
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 '18 at 12:45
AlexP11223AlexP11223
1,68363075
asked Nov 22 '18 at 12:45
AlexP11223AlexP11223
1,68363075
asked Nov 22 '18 at 12:45
AlexP11223AlexP11223
1,68363075
asked Nov 22 '18 at 12:45
AlexP11223AlexP11223
1,68363075
asked Nov 22 '18 at 12:45
AlexP11223AlexP11223
1,68363075
1,68363075
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 '18 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 '18 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 '18 at 16:29
add a comment |
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 '18 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 '18 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 '18 at 16:29
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 '18 at 6:17
@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 '18 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 '18 at 13:52
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 '18 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 '18 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 '18 at 16:29
add a comment |
1 Answer
1
active
oldest
votes
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 '18 at 22:02
AlexP11223AlexP11223
1,68363075
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 '18 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 '18 at 6:15
add a comment |
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1 Answer
1
active
oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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 '18 at 22:02
AlexP11223AlexP11223
1,68363075
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 '18 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 '18 at 6:15
add a comment |
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 '18 at 22:02
AlexP11223AlexP11223
1,68363075
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 '18 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 '18 at 6:15
add a comment |
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 '18 at 22:02
AlexP11223AlexP11223
1,68363075
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 '18 at 22:02
AlexP11223AlexP11223
1,68363075
edited Nov 23 '18 at 10:26
answered Nov 22 '18 at 22:02
AlexP11223AlexP11223
1,68363075
answered Nov 22 '18 at 22:02
AlexP11223AlexP11223
1,68363075
answered Nov 22 '18 at 22:02
AlexP11223AlexP11223
1,68363075
1,68363075
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 '18 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 '18 at 6:15
add a comment |
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 '18 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 '18 at 6:15
1
1
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 '18 at 22:26
somehow this looks more difficult than actually programming it.
– Martin Zeitler
Nov 22 '18 at 22:26
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 '18 at 6:15
@MartinZeitler yeah. I had to use AppInventor just for one assignment in my university.
– AlexP11223
Nov 23 '18 at 6:15
add a comment |
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@Taifun yes, that's what I did already in my answer.
– AlexP11223
Nov 23 '18 at 6:17
@Taifun btw you linked some closed group that doesn't even accept requests.
– AlexP11223
Nov 23 '18 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 '18 at 16:29