mykola/OutageFetch
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add some callbacks to handle back control into composable functions

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mykola2312 2024-07-16 03:30:32 +03:00
parent 43cf9d416f
commit 6178857086
1 changed files with 26 additions and 24 deletions
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50
app/src/main/java/com/mykola2312/outagefetch/MainActivity.kt
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@ -53,12 +53,31 @@ class MainActivity : ComponentActivity() {
@SuppressLint("SetJavaScriptEnabled")
@Composable
fun ExtractWebView() {
fun ExtractWebView(onExtract: (String) -> Unit) {
val url = stringResource(id = R.string.fetch_url)
AndroidView(factory = {
WebView(it).apply {
this.webViewClient = ExtractorClient()
this.webViewClient = object : WebViewClient() {
val JS_EXTRACT = "document.getElementsByClassName(\"aos-init aos-animate\").item(0).children[4].lastChild.src";
override fun shouldOverrideUrlLoading(view: WebView?, request: WebResourceRequest?): Boolean {
return false
}
override fun onPageFinished(view: WebView?, url: String?) {
super.onPageFinished(view, url)
view?.evaluateJavascript(JS_EXTRACT, ValueCallback<String> {
if (it != null) {
val scheduleImgUrl = it.removeSurrounding("\"")
Log.i("extract", scheduleImgUrl)
onExtract(scheduleImgUrl)
}
})
}
}
}
}, update = {
it.settings.javaScriptEnabled = true
@ -66,37 +85,20 @@ fun ExtractWebView() {
}) // , modifier = Modifier.size(300.dp)
}
class ExtractorClient : WebViewClient() {
companion object ExtractConstants {
const val JS_EXTRACT = "document.getElementsByClassName(\"aos-init aos-animate\").item(0).children[4].lastChild.src";
}
override fun shouldOverrideUrlLoading(view: WebView?, request: WebResourceRequest?): Boolean {
return false
}
override fun onPageFinished(view: WebView?, url: String?) {
super.onPageFinished(view, url)
view?.evaluateJavascript(JS_EXTRACT, ValueCallback<String> {
if (it != null) {
val scheduleImgUrl = it.removeSurrounding("\"")
Log.i("extract", scheduleImgUrl)
}
})
}
}
@Composable
fun FetchScreen() {
var doFetch by remember { mutableStateOf(false) }
var scheduleImgUrl by remember { mutableStateOf("") }
Column() {
Button(onClick = { doFetch = true }) {
Text("WebView Fetch")
}
Text(scheduleImgUrl)
if (doFetch) {
ExtractWebView()
ExtractWebView { scheduleImgUrl = it }
}
}
}