一、裝置類是Xamarin重要開發組成部分,下面介紹一下裝置類的主要用法:
//喚醒打電話 Device.OpenUri(new Uri("tel:180xxxxxxxx")); //開啟網頁 Device.OpenUri(new Uri("http://vipstone.cnblogs.com/")); //判斷當前執行平臺 Device.RuntimePlatform => Device.iOS, Device.Android, Device.WinPhone //裝置型別平板、手機、桌面 Device.Idiom => TargetIdiom.Phone, TargetIdiom.Tablet, TargetIdiom.Desktop //計數器延遲執行 Device.StartTimer (new TimeSpan (0, 0, 60), () => { // do something every 60 seconds return true; // runs again, or false to stop });
更多Device相關資訊請訪問:https://developer.xamarin.com/guides/xamarin-forms/platform-features/device/
二、第三方彈窗,模態視窗
先看效果圖:
模態視窗git地址:https://github.com/rotorgames/Rg.Plugins.Popup
基本實現核心程式碼:
<?xml version="1.0" encoding="utf-8" ?> <pages:PopupPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="ywgoapp.Pages.Upgrade.UpgradePrompt" xmlns:pages="clr-namespace:Rg.Plugins.Popup.Pages;assembly=Rg.Plugins.Popup"> <StackLayout VerticalOptions="Center" WidthRequest="290" HorizontalOptions="Center" Spacing="0"> <AbsoluteLayout VerticalOptions="Start"> <Image Source="upgrade_bgtop.png" WidthRequest="290" AbsoluteLayout.LayoutFlags="PositionProportional" AbsoluteLayout.LayoutBounds="0,0"></Image> <Label x:Name="lb_version" Text="版本升級" AbsoluteLayout.LayoutFlags="XProportional" AbsoluteLayout.LayoutBounds="0.5,74" FontSize="16" TextColor="White"></Label> <Image x:Name="img_close" IsVisible="False" Source="close3.png" HeightRequest="24" WidthRequest="24" AbsoluteLayout.LayoutFlags="XProportional" AbsoluteLayout.LayoutBounds=".96,52"> <Image.GestureRecognizers> <TapGestureRecognizer Tapped="OnCloseTap"></TapGestureRecognizer> </Image.GestureRecognizers> </Image> </AbsoluteLayout> <ScrollView Padding="30,20" MinimumHeightRequest="160" BackgroundColor="White"> <Label x:Name="lb_content" Text="" FontSize="12"></Label> </ScrollView> <StackLayout Padding="50,0,50,10" BackgroundColor="White"> <Button Text="立即升級" BackgroundColor="#4BC1D2" TextColor="White" Clicked="Button_Clicked"> </Button> </StackLayout> <StackLayout Spacing="0"> <Image Source="upgrade_bgbottom.png" WidthRequest="290" Aspect="AspectFill"></Image> </StackLayout> </StackLayout> </pages:PopupPage>
呼叫程式碼:
this.Navigation.PushPopupAsync(new UpgradePrompt());
彈窗要注意的點:
1.不想點選任何區域都消失的話,需要重新OnBackgroundClicked事件:return false;
2.手動關閉窗體:PopupNavigation.PopAsync();
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