Activity 加载 WebView Xamarin 表单时的指示器
Activity Indicator while loading WebView Xamarin forms
我想在WebView加载数据的时候先加载一个Activity指示器,加载完数据后就变成Invisible了。
下面是我的Xaml代码:
<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" Title="Shows Trending" xmlns:o="clr-namespace:Octane.Xam.VideoPlayer;assembly=Octane.Xam.VideoPlayer" x:Class="BBSTV.TrendingShowsDetails">
<ActivityIndicator x:Name="activity_indicator" Color="Blue" />
<WebView VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand" x:Name="loadVideo_wv">
</WebView>
</ContentPage>
下面是我的 C# 代码:
using System;
using System.Collections.Generic;
using Xamarin.Forms;
namespace BBSTV
{
public partial class TrendingShowsDetails : ContentPage
{
public TrendingShowsDetails(string videolink)
{
InitializeComponent();
activity_indicator.IsRunning = true;
loadVideo_wv.Source = "https://www.youtube.com/playlist?list=" + videolink;
activity_indicator.IsRunning = false;
}
}
}
这里已经回答了这个问题:
这里:
试试这个:
C#代码:
public TrendingShowsDetails(string videolink)
{
InitializeComponent();
loadVideo_wv.Source = "https://www.youtube.com/playlist?list=" + videolink;
}
protected async override void OnAppearing()
{
base.OnAppearing();
await activity_indicator.ProgressTo(0.9, 900, Easing.SpringIn);
}
public void OnNavigating(object sender, WebNavigatingEventArgs e)
{
activity_indicator.IsVisible = true;
}
public void OnNavigated(object sender, WebNavigatedEventArgs e)
{
activity_indicator.IsVisible = false;
}
Xaml代码:
<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
Title="Shows Trending" xmlns:o="clr-namespace:Octane.Xam.VideoPlayer;assembly=Octane.Xam.VideoPlayer" x:Class="BBSTV.TrendingShowsDetails">
<StackLayout>
<ProgressBar Progress="0.2" IsVisible="false" HorizontalOptions="FillAndExpand" x:Name="activity_indicator" />
<WebView VerticalOptions="FillAndExpand" Navigating="OnNavigating" Navigated="OnNavigated" HorizontalOptions="FillAndExpand" x:Name="loadVideo_wv">
</WebView>
</StackLayout>
</ContentPage>
我想在WebView加载数据的时候先加载一个Activity指示器,加载完数据后就变成Invisible了。
下面是我的Xaml代码:
<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" Title="Shows Trending" xmlns:o="clr-namespace:Octane.Xam.VideoPlayer;assembly=Octane.Xam.VideoPlayer" x:Class="BBSTV.TrendingShowsDetails">
<ActivityIndicator x:Name="activity_indicator" Color="Blue" />
<WebView VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand" x:Name="loadVideo_wv">
</WebView>
</ContentPage>
下面是我的 C# 代码:
using System;
using System.Collections.Generic;
using Xamarin.Forms;
namespace BBSTV
{
public partial class TrendingShowsDetails : ContentPage
{
public TrendingShowsDetails(string videolink)
{
InitializeComponent();
activity_indicator.IsRunning = true;
loadVideo_wv.Source = "https://www.youtube.com/playlist?list=" + videolink;
activity_indicator.IsRunning = false;
}
}
}
这里已经回答了这个问题:
这里:
试试这个:
C#代码:
public TrendingShowsDetails(string videolink)
{
InitializeComponent();
loadVideo_wv.Source = "https://www.youtube.com/playlist?list=" + videolink;
}
protected async override void OnAppearing()
{
base.OnAppearing();
await activity_indicator.ProgressTo(0.9, 900, Easing.SpringIn);
}
public void OnNavigating(object sender, WebNavigatingEventArgs e)
{
activity_indicator.IsVisible = true;
}
public void OnNavigated(object sender, WebNavigatedEventArgs e)
{
activity_indicator.IsVisible = false;
}
Xaml代码:
<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
Title="Shows Trending" xmlns:o="clr-namespace:Octane.Xam.VideoPlayer;assembly=Octane.Xam.VideoPlayer" x:Class="BBSTV.TrendingShowsDetails">
<StackLayout>
<ProgressBar Progress="0.2" IsVisible="false" HorizontalOptions="FillAndExpand" x:Name="activity_indicator" />
<WebView VerticalOptions="FillAndExpand" Navigating="OnNavigating" Navigated="OnNavigated" HorizontalOptions="FillAndExpand" x:Name="loadVideo_wv">
</WebView>
</StackLayout>
</ContentPage>