Create WebViewUtil.kt

This commit is contained in:
Jay 2020-03-10 00:00:29 -07:00
parent ce1ab6d964
commit 75e32f6f47

View File

@ -0,0 +1,33 @@
package eu.kanade.tachiyomi.util.system
import android.webkit.WebView
private val WEBVIEW_UA_VERSION_REGEX by lazy {
Regex(""".*Chrome/(\d+)\..*""")
}
private const val MINIMUM_WEBVIEW_VERSION = 70
fun WebView.isOutdated(): Boolean {
return getWebviewMajorVersion(this) < MINIMUM_WEBVIEW_VERSION
}
// Based on https://stackoverflow.com/a/29218966
private fun getWebviewMajorVersion(webview: WebView): Int {
val originalUA: String = webview.settings.userAgentString
// Next call to getUserAgentString() will get us the default
webview.settings.userAgentString = null
val uaRegexMatch = WEBVIEW_UA_VERSION_REGEX.matchEntire(webview.settings.userAgentString)
val webViewVersion: Int = if (uaRegexMatch != null && uaRegexMatch.groupValues.size > 1) {
uaRegexMatch.groupValues[1].toInt()
} else {
0
}
// Revert to original UA string
webview.settings.userAgentString = originalUA
return webViewVersion
}