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Fixes the RatingView Binding property Rating

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This commit is contained in:
Paul Schneider 2016-10-08 17:15:52 +02:00
commit 031a5d9f3d
4 changed files with 82 additions and 74 deletions
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71
BookAStar/BookAStar/Views/RatingView.xaml.cs
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@ -11,66 +11,25 @@ namespace BookAStar.Views
{
public partial class RatingView : ContentView
{
protected int rating;
public static BindableProperty RatingProperty = BindableProperty.Create(
"Rating", typeof(int), typeof(RatingView), 0, BindingMode.TwoWay,
propertyChanged: OnRatingChanged);
public int Rating {
get
{
return rating;
}
set
{
if (value != rating)
{
if (value < 0 || value > 5)
{
SetValue(RatingProperty, 0);
rating = 0;
}
else
{
SetValue(RatingProperty, value);
rating = value;
}
starBehaviors[4].SetValue(StarBehavior.RatingProperty, rating);
for (int i = 0; i < rating && i < 5; i++)
starBehaviors[i].SetValue(StarBehavior.IsStarredProperty, true);
for (int i = rating; i < 5 && i >= 0; i++)
starBehaviors[i].SetValue(StarBehavior.IsStarredProperty, false);
}
}
}
private bool isStarred;
public bool IsStarred
private static void OnRatingChanged(BindableObject bindable, object oldValue, object newValue)
{
get
var view = (RatingView) bindable;
int newValueInt = (int)newValue;
if (oldValue!=newValue)
{
return isStarred;
}
set
{
SetValue(IsStarredProperty, value);
// This will set starBehaviors[4].Rating, five times
for (int i = 0; i < 5 && i < newValueInt; i++)
view.starBehaviors[i].IsStarred = true;
for (int i = newValueInt; i < 5; i++)
view.starBehaviors[i].IsStarred = false;
}
}
StarBehavior[] starBehaviors;
public static BindableProperty IsStarredProperty = BindableProperty.Create(
propertyName: "IsStarred",
returnType: typeof(bool),
declaringType: typeof(RatingView),
defaultValue: false,
defaultBindingMode: BindingMode.TwoWay
);
public static BindableProperty RatingProperty = BindableProperty.Create(
propertyName: "Rating",
returnType: typeof(int),
declaringType: typeof(RatingView),
defaultValue: 0,
defaultBindingMode: BindingMode.TwoWay
);
public RatingView()
{
@ -79,7 +38,13 @@ namespace BookAStar.Views
{
starOne, starTwo, starThree, starFour, starFive
};
StarBehavior.StarTapped += StarBehavior_StarTapped;
}
private void StarBehavior_StarTapped(object sender, EventArgs e)
{
if (starBehaviors.Contains(sender))
SetValue(RatingProperty, starFive.Rating);
}
}
}