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WebView 를 사용해 보니 cache 때문에 반영된 최신 정보를 못가져오는 경우가 있다
아래 코드를 이용하면 항상 cache 를 clear 하고 가져오므로 이런 현상을 막을수 있다.
PCL
namespace Project.Controls
{
public class NoCachedWebView : WebView
{
}
}
{
public class NoCachedWebView : WebView
{
}
}
Android
[assembly: ExportRenderer(typeof(NoCachedWebView), typeof(NoCachedWebViewRenderer))]
namespace Project.Droid.Renderer
{
class NoCachedWebViewRenderer : WebViewRenderer
{
protected override void OnElementChanged(ElementChangedEventArgs<WebView> e)
{
base.OnElementChanged(e);
if (Control == null) return;
namespace Project.Droid.Renderer
{
class NoCachedWebViewRenderer : WebViewRenderer
{
protected override void OnElementChanged(ElementChangedEventArgs<WebView> e)
{
base.OnElementChanged(e);
if (Control == null) return;
Control.ClearCache(true);
Control.Settings.SetAppCacheEnabled(false);
Control.Settings.CacheMode = Android.Webkit.CacheModes.NoCache;
}
}
}
iOS
[assembly: ExportRenderer(typeof(NoCachedWebView), typeof(NoCachedWebViewRenderer))]
namespace Project.iOS.Renderer
{
class NoCachedWebViewRenderer : WebViewRenderer
{
protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
if (Element == null) return;
namespace Project.iOS.Renderer
{
class NoCachedWebViewRenderer : WebViewRenderer
{
protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
if (Element == null) return;
NSUrlCache.SharedCache.RemoveAllCachedResponses();
NSUrlCache.SharedCache.MemoryCapacity = 0;
NSUrlCache.SharedCache.DiskCapacity = 0;
}
}
}
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