Listview “like” button inside cell
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I´m trying to set a "like button" inside the cells of my listview. To do that I´m using this code:
public class MyCell : ViewCell
{
private SvgCachedImage likeImg = new SvgCachedImage();
public MyCell()
{
likeImg.Source = SvgImageSource.FromFile("notlike.svg");
likeImg.GestureRecognizers.Add(new TapGestureRecognizer { Command = new Command(() => LikeFnc()) });
View = likeImg;
}
private void LikeFnc()
{
likeImg.Source = SvgImageSource.FromFile("like.svg");
}
}
This works, but the behavior is very strange since the images of several cells are changed, it is as if the function to change the image affected other cells. Any ideas?
Thanks!
listview xamarin.forms xamarin.forms.listview
add a comment |
I´m trying to set a "like button" inside the cells of my listview. To do that I´m using this code:
public class MyCell : ViewCell
{
private SvgCachedImage likeImg = new SvgCachedImage();
public MyCell()
{
likeImg.Source = SvgImageSource.FromFile("notlike.svg");
likeImg.GestureRecognizers.Add(new TapGestureRecognizer { Command = new Command(() => LikeFnc()) });
View = likeImg;
}
private void LikeFnc()
{
likeImg.Source = SvgImageSource.FromFile("like.svg");
}
}
This works, but the behavior is very strange since the images of several cells are changed, it is as if the function to change the image affected other cells. Any ideas?
Thanks!
listview xamarin.forms xamarin.forms.listview
Cells are reused on repeaters like listview to avoid overprocessing and hangs. It's like the same instance shared between items on your list. I guess you can make it work by using a boolean property and 2 instances ofSvgCachedImage
, one for each desired image. Chose the SvgCachedImage to show depending on the state of BoolProperty. You can use bindings on it too.
– Diego Rafael Souza
Dec 30 '18 at 22:55
Ok, I made it using MessagingCenter. Thanks
– Jose
Dec 31 '18 at 16:46
add a comment |
I´m trying to set a "like button" inside the cells of my listview. To do that I´m using this code:
public class MyCell : ViewCell
{
private SvgCachedImage likeImg = new SvgCachedImage();
public MyCell()
{
likeImg.Source = SvgImageSource.FromFile("notlike.svg");
likeImg.GestureRecognizers.Add(new TapGestureRecognizer { Command = new Command(() => LikeFnc()) });
View = likeImg;
}
private void LikeFnc()
{
likeImg.Source = SvgImageSource.FromFile("like.svg");
}
}
This works, but the behavior is very strange since the images of several cells are changed, it is as if the function to change the image affected other cells. Any ideas?
Thanks!
listview xamarin.forms xamarin.forms.listview
I´m trying to set a "like button" inside the cells of my listview. To do that I´m using this code:
public class MyCell : ViewCell
{
private SvgCachedImage likeImg = new SvgCachedImage();
public MyCell()
{
likeImg.Source = SvgImageSource.FromFile("notlike.svg");
likeImg.GestureRecognizers.Add(new TapGestureRecognizer { Command = new Command(() => LikeFnc()) });
View = likeImg;
}
private void LikeFnc()
{
likeImg.Source = SvgImageSource.FromFile("like.svg");
}
}
This works, but the behavior is very strange since the images of several cells are changed, it is as if the function to change the image affected other cells. Any ideas?
Thanks!
listview xamarin.forms xamarin.forms.listview
listview xamarin.forms xamarin.forms.listview
asked Dec 30 '18 at 20:55
JoseJose
306
306
Cells are reused on repeaters like listview to avoid overprocessing and hangs. It's like the same instance shared between items on your list. I guess you can make it work by using a boolean property and 2 instances ofSvgCachedImage
, one for each desired image. Chose the SvgCachedImage to show depending on the state of BoolProperty. You can use bindings on it too.
– Diego Rafael Souza
Dec 30 '18 at 22:55
Ok, I made it using MessagingCenter. Thanks
– Jose
Dec 31 '18 at 16:46
add a comment |
Cells are reused on repeaters like listview to avoid overprocessing and hangs. It's like the same instance shared between items on your list. I guess you can make it work by using a boolean property and 2 instances ofSvgCachedImage
, one for each desired image. Chose the SvgCachedImage to show depending on the state of BoolProperty. You can use bindings on it too.
– Diego Rafael Souza
Dec 30 '18 at 22:55
Ok, I made it using MessagingCenter. Thanks
– Jose
Dec 31 '18 at 16:46
Cells are reused on repeaters like listview to avoid overprocessing and hangs. It's like the same instance shared between items on your list. I guess you can make it work by using a boolean property and 2 instances of
SvgCachedImage
, one for each desired image. Chose the SvgCachedImage to show depending on the state of BoolProperty. You can use bindings on it too.– Diego Rafael Souza
Dec 30 '18 at 22:55
Cells are reused on repeaters like listview to avoid overprocessing and hangs. It's like the same instance shared between items on your list. I guess you can make it work by using a boolean property and 2 instances of
SvgCachedImage
, one for each desired image. Chose the SvgCachedImage to show depending on the state of BoolProperty. You can use bindings on it too.– Diego Rafael Souza
Dec 30 '18 at 22:55
Ok, I made it using MessagingCenter. Thanks
– Jose
Dec 31 '18 at 16:46
Ok, I made it using MessagingCenter. Thanks
– Jose
Dec 31 '18 at 16:46
add a comment |
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Cells are reused on repeaters like listview to avoid overprocessing and hangs. It's like the same instance shared between items on your list. I guess you can make it work by using a boolean property and 2 instances of
SvgCachedImage
, one for each desired image. Chose the SvgCachedImage to show depending on the state of BoolProperty. You can use bindings on it too.– Diego Rafael Souza
Dec 30 '18 at 22:55
Ok, I made it using MessagingCenter. Thanks
– Jose
Dec 31 '18 at 16:46