コード例 #1
0
        protected override void Dispose(bool disposing)
        {
            if (this._Adapter != null)
            {
                this._Adapter.Dispose();
            }

            DropDownPicker.OnMessageTo        -= AddMessageTO;
            this._SpinnerControl.LayoutChange -= SpinnerLayoutChange;
            this._SpinnerControl.Dispose();
            this._SpinnerControl = null;

            base.Dispose(disposing);
        }
コード例 #2
0
        protected override void OnElementChanged(ElementChangedEventArgs <DropDownPicker> e)
        {
            base.OnElementChanged(e);

            if (this.Control == null)
            {
                var inflater = (global::Android.Views.LayoutInflater)Xamarin.Forms.Forms.Context.GetSystemService(global::Android.App.Service.LayoutInflaterService);
                var layout   = inflater.Inflate(Resource.Layout.spinner, null).JavaCast <LinearLayout> ();


                var parentl = layout.FindViewById <LinearLayout> (Resource.Id.parentLayoutSpinner);

                // spinner border color.
                parentl.Background = RectBorder(this.Element.BorderColor.ToAndroid(), 5);

                this._SpinnerControl = layout.FindViewById <MyAppCompatSpinner> (Resource.Id.spinner2);
                this._SpinnerControl.FormsElement           = this.Element;
                this._SpinnerControl.OnItemSelectedListener = this;
                this._SpinnerControl.LayoutChange          += SpinnerLayoutChange;

                // spinner arrow color
                Drawable spinnerDrawable = _SpinnerControl.Background.GetConstantState().NewDrawable();
                spinnerDrawable.SetColorFilter(this.Element.ArrowColor.ToAndroid(), PorterDuff.Mode.SrcAtop);

                if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.JellyBean)
                {
                    _SpinnerControl.SetBackground(spinnerDrawable);
                }
                else
                {
                    _SpinnerControl.SetBackgroundDrawable(spinnerDrawable);
                }

                SetAdapter();
                this._Adapter.SelectedText = Element.SelectedText;

                this._SpinnerControl.Adapter   = this._Adapter;
                this._SpinnerControl.Clickable = true;
                this._SpinnerControl.OnItemSelectedListener = this;

                this.SetNativeControl(layout);

                DropDownPicker.OnMessageTo += AddMessageTO;
            }
        }