Compose WebView Part 10 | Show Loader
How do i display Loader while loading url - Jetpack compose
In this jetpack compose tutorial series we will cover how to display loader screen while loading the webpage inside webview with jetpack compose. To handle the webpage loading status we will use WebViewClient class.
Ref this : to show animating loader while loading the web page in our app: https://www.boltuix.com/2022/07/compose-custom-animating-dialog.html
package com.blogspot.boltuix
import android.annotation.SuppressLint
import android.graphics.Bitmap
import android.os.Bundle
import android.view.ViewGroup
import android.webkit.WebView
import android.webkit.WebViewClient
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.Image
import androidx.compose.foundation.layout.*
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Alignment
import androidx.compose.ui.ExperimentalComposeUiApi
import androidx.compose.ui.Modifier
import androidx.compose.ui.layout.ContentScale
import androidx.compose.ui.res.painterResource
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import androidx.compose.ui.viewinterop.AndroidView
import androidx.compose.ui.window.Dialog
import androidx.compose.ui.window.DialogProperties
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
WebViewPage("https://www.boltuix.com/")
}
}
}
@OptIn(ExperimentalComposeUiApi::class)
@SuppressLint("SetJavaScriptEnabled")
@Composable
fun WebViewPage(url: String){
//..........................................................................custom full screen dialog
val loaderDialogScreen = remember { mutableStateOf(false) }
if (loaderDialogScreen.value) {
// Dialog function
Dialog(
onDismissRequest = {
loaderDialogScreen.value = false
},
properties = DialogProperties(
usePlatformDefaultWidth = false // experimental
)
) {
Surface(modifier = Modifier.fillMaxSize()) {
Column(
modifier = Modifier.fillMaxSize(),
verticalArrangement = Arrangement.Center,
horizontalAlignment = Alignment.CenterHorizontally
) {
Image(
painter = painterResource(id = R.drawable.logo),
contentDescription = null,
contentScale = ContentScale.Fit,
modifier = Modifier
.height(200.dp)
.fillMaxWidth(),
)
Spacer(modifier = Modifier.height(20.dp))
//.........................Text: title
Text(
text = "Loading...",
textAlign = TextAlign.Center,
modifier = Modifier
.padding(top = 20.dp)
.fillMaxWidth(),
letterSpacing = 2.sp,
fontWeight = FontWeight.Bold,
style = MaterialTheme.typography.titleLarge,
color = MaterialTheme.colorScheme.primary,
)
Spacer(modifier = Modifier.height(8.dp))
//.........................Text : description
Text(
text = "Please wait",
textAlign = TextAlign.Center,
modifier = Modifier
.padding(top = 10.dp, start = 25.dp, end = 25.dp)
.fillMaxWidth(),
letterSpacing = 3.sp,
style = MaterialTheme.typography.bodyLarge,
color = MaterialTheme.colorScheme.primary,
)
//.........................Spacer
Spacer(modifier = Modifier.height(24.dp))
}
}
}
}
//..........................................................................
AndroidView(
factory = {
WebView(it).apply {
layoutParams = ViewGroup.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT
)
webViewClient = WebViewClient()
// to play video on a web view
settings.javaScriptEnabled = true
webViewClient = object : WebViewClient() {
override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {
super.onPageStarted(view, url, favicon)
// show dialog
loaderDialogScreen.value = true
}
override fun onPageFinished(view: WebView?, url: String?) {
super.onPageFinished(view, url)
// hide dialog
loaderDialogScreen.value = false
}
}
loadUrl(url)
}
}, update = {
it.loadUrl(url)
})
}
..
GET full source code on Gumroad:
..
Comments
Post a Comment