private void CriarImagem(ImageSource imageSource, int idArquivo)
{
var img = new Image {
Source = imageSource
};
img.GestureRecognizers.Add(new TapGestureRecognizer(async sender =>
{
//deseleciona todas
foreach (var item in SelectorEstampasSpinner.Children)
{
var child = item as FrameEstampa;
if (child != null)
{
child.OutlineColor = Color.Transparent;
}
}
//seleciona a atual
var parent = sender.Parent as FrameEstampa;
if (parent != null)
{
parent.OutlineColor = Color.Aqua;
}
//habilita botao de remocao
imgRemoveButton.IsVisible = true;
selectedImage = parent;
}));
var retanguloSelecao = new FrameEstampa {
idEstampa = idArquivo,
Content = img,
OutlineColor = Color.Transparent
};
SelectorEstampasSpinner.Children.Add(retanguloSelecao);
}
private void CriarPagina()
{
var alturaTela = Height;
var larguraTela = Width;
var paddingTela = alturaTela * .02f;
var alturaEstampasPickerContainer = alturaTela * .05f;
var alturaEstampasSelectorContainer = alturaTela * .5f;
var larguraEstampasSelectorContainer = alturaTela * .9f;
var alturaHeader = alturaTela * .20f;
var alturaFooter = alturaTela * .08f;
var alturaRecomentadaEstampa = alturaTela - alturaHeader - alturaFooter;
Padding = new Thickness(paddingTela);
BackgroundColor = COR_BACKGROUND_TELA;
var SelectorRelatoriosText = new Label
{
Text = TEXT_RELATORIO,
FontSize = FONTE_TEXTO_LABELS,
TextColor = COR_TEXTO_LABELS,
FontFamily = FAMILIA_TEXTO_LABELS,
HorizontalTextAlignment = TextAlignment.Start,
VerticalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.StartAndExpand,
VerticalOptions = LayoutOptions.Center
};
var imgRelatorio = new Image
{
Source = ImageSource.FromResource("VotacaoEstampas.Images.1484886998_6.png"),
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Start,
};
imgRelatorio.GestureRecognizers.Add(new TapGestureRecognizer(async sender => {
if (App.UltimaColecao.Votacoes != null && App.UltimaColecao.Votacoes.Count != 0)
{
await Navigation.PushAsync(new RelatorioPage());
}
else
{
DisplayAlert("Não disponível", "Não há relatórios salvos.", "OK");
}
}));
var SelectorRelatorioContainer = new StackLayout
{
Orientation = StackOrientation.Horizontal,
Spacing = 30,
HeightRequest = alturaEstampasPickerContainer,
Children =
{
imgRelatorio, SelectorRelatoriosText
},
};
var imgAddButton = new Image
{
Source = ImageSource.FromResource("VotacaoEstampas.Images.icon_add_128.png"),
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.End,
};
imgAddButton.GestureRecognizers.Add(new TapGestureRecognizer(async sender =>
{
var arquivo = await CrossFilePicker.Current.PickFile();
if (arquivo != null)
{
if (imagensAdicionadas.Count == 0)
{
SelectorEstampasSpinner.Children.Clear();
}
var dadosArquivo = arquivo.DataArray;
var idArquivo = GetNextImageIndex();
Stream stream = new MemoryStream(dadosArquivo);
CriarImagem(ImageSource.FromStream(() => { return(stream); }), idArquivo);
imagensAdicionadas.Add(new KeyValuePair <int, byte[]> (idArquivo, dadosArquivo));
_estampasAlteradas = true;
}
}));
imgRemoveButton = new Image
{
Source = ImageSource.FromResource("VotacaoEstampas.Images.icon_remove_128.png"),
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Start,
IsVisible = false
};
imgRemoveButton.GestureRecognizers.Add(new TapGestureRecognizer(async sender =>
{
if (selectedImage != null)
{
if (SelectorEstampasSpinner.Children.Any((x) => x == selectedImage))
{
var answer = await DisplayAlert("Excluir?", "Deseja realmente excluir esta espampa?", "Sim", "Não");
if (answer)
{
SelectorEstampasSpinner.Children.Remove(selectedImage);
try { imagensAdicionadas.Remove(imagensAdicionadas.FirstOrDefault(x => x.Key == selectedImage.idEstampa)); }
catch { }
selectedImage = null;
_estampasAlteradas = true;
}
}
}
}));
var imgSelectorContainer = new StackLayout
{
Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.End,
Children =
{
imgRemoveButton, imgAddButton
},
};
var SelectorEstampasText = new Label
{
Text = TEXT_LBL_COLOR_SELECTED,
FontSize = FONTE_TEXTO_LABELS,
TextColor = COR_TEXTO_LABELS,
FontFamily = FAMILIA_TEXTO_LABELS,
FontAttributes = ATRIBUTOS_TEXTO_LABELS,
HorizontalTextAlignment = TextAlignment.Start,
VerticalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.StartAndExpand,
VerticalOptions = LayoutOptions.Center
};
var SelectorEstampasContainer = new StackLayout
{
Orientation = StackOrientation.Horizontal,
HeightRequest = alturaEstampasPickerContainer,
Children =
{
SelectorEstampasText, imgSelectorContainer
},
};
var SelectorEstampasSizeHint = new Label
{
Text = string.Format("Tamanho recomendado para estampas é de {0}x{1} pixels.", Convert.ToInt32(larguraTela), Convert.ToInt32(alturaRecomentadaEstampa)),
FontSize = Device.GetNamedSize(NamedSize.Small, typeof(Label)),
TextColor = COR_TEXTO_LABELS,
HorizontalTextAlignment = TextAlignment.Start,
VerticalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.StartAndExpand,
VerticalOptions = LayoutOptions.Center
};
SelectorEstampasSpinner = new StackLayout
{
Orientation = StackOrientation.Horizontal,
Spacing = 0,
};
var SelectorEstampasScroll = new ScrollView
{
Orientation = ScrollOrientation.Horizontal,
HeightRequest = alturaEstampasSelectorContainer,
WidthRequest = larguraEstampasSelectorContainer,
Padding = new Thickness(0, 0, 0, 20),
Content = SelectorEstampasSpinner
};
var btnIniciarAplicacao = new CustomButton
{
Text = "Iniciar Aplicação",
FontSize = FONTE_TEXTO_LABELS,
FontFamily = FAMILIA_TEXTO_LABELS,
FontAttributes = ATRIBUTOS_TEXTO_LABELS,
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.CenterAndExpand,
TextColor = COR_TEXTO_LABELS,
BorderRadius = 20,
HeightRequest = FONTE_TEXTO_LABELS + 30,
CorBackgroundCustomRed = 30,
CorBackgroundCustomGreen = 30,
CorBackgroundCustomBlue = 30
};
btnIniciarAplicacao.Clicked += BtnIniciarAplicacao_Clicked;//async (sender, eventArgs) =>
var containerBtn = new StackLayout
{
Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.CenterAndExpand,
Padding = new Thickness(40, 10),
Children =
{
btnIniciarAplicacao
}
};
// set conteudo da página
Content = new StackLayout
{
//Padding = new Thickness(paddingTela),
Orientation = StackOrientation.Vertical,
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
Children =
{
SelectorRelatorioContainer, SelectorEstampasContainer, SelectorEstampasSizeHint, SelectorEstampasScroll, btnIniciarAplicacao
},
};
}
