Created
June 22, 2022 10:16
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Web Browser Application using Jetpack Compose
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// Using WebView Accompanist library | |
// implementation "com.google.accompanist:accompanist-webview:<version>" | |
import android.graphics.Bitmap | |
import android.util.Log | |
import android.webkit.WebView | |
import androidx.compose.foundation.layout.* | |
import androidx.compose.foundation.text.BasicTextField | |
import androidx.compose.material.* | |
import androidx.compose.material.icons.Icons | |
import androidx.compose.material.icons.filled.* | |
import androidx.compose.runtime.* | |
import androidx.compose.ui.Modifier | |
import androidx.compose.ui.graphics.Color | |
import androidx.compose.ui.text.TextStyle | |
import androidx.compose.ui.unit.dp | |
import com.google.accompanist.web.* | |
@Composable | |
fun WebBrowser() { | |
var url by remember { mutableStateOf("https://stevdza-san.com") } | |
val state = rememberWebViewState(url = url) | |
val navigator = rememberWebViewNavigator() | |
var textFieldValue by remember(state.content.getCurrentUrl()) { | |
mutableStateOf(state.content.getCurrentUrl() ?: "") | |
} | |
Column { | |
TopAppBar { | |
IconButton(onClick = { navigator.navigateBack() }) { | |
Icon( | |
imageVector = Icons.Default.ArrowBack, | |
contentDescription = "Back" | |
) | |
} | |
IconButton(onClick = { navigator.navigateForward() }) { | |
Icon( | |
imageVector = Icons.Default.ArrowForward, | |
contentDescription = "Forward" | |
) | |
} | |
Text( | |
text = "Web Browser", style = TextStyle( | |
color = Color.White, | |
fontSize = MaterialTheme.typography.h6.fontSize, | |
fontWeight = MaterialTheme.typography.h6.fontWeight | |
) | |
) | |
Row( | |
modifier = Modifier.weight(1f), | |
horizontalArrangement = Arrangement.End | |
) { | |
IconButton(onClick = { navigator.reload() }) { | |
Icon( | |
imageVector = Icons.Default.Refresh, | |
contentDescription = "Refresh" | |
) | |
} | |
IconButton(onClick = { url = textFieldValue }) { | |
Icon( | |
imageVector = Icons.Default.Check, | |
contentDescription = "Go" | |
) | |
} | |
} | |
} | |
Row(modifier = Modifier.padding(all = 12.dp)) { | |
BasicTextField( | |
modifier = Modifier.weight(9f), | |
value = textFieldValue, | |
onValueChange = { textFieldValue = it }, | |
maxLines = 1 | |
) | |
if (state.errorsForCurrentRequest.isNotEmpty()) { | |
Icon( | |
modifier = Modifier | |
.weight(1f), | |
imageVector = Icons.Default.Warning, | |
contentDescription = "Error", | |
tint = Color.Red | |
) | |
} | |
} | |
val loadingState = state.loadingState | |
if (loadingState is LoadingState.Loading) { | |
LinearProgressIndicator( | |
progress = loadingState.progress, | |
modifier = Modifier.fillMaxWidth() | |
) | |
} | |
// A custom WebViewClient and WebChromeClient can be provided via subclassing | |
val webClient = remember { | |
object : AccompanistWebViewClient() { | |
override fun onPageStarted( | |
view: WebView?, | |
url: String?, | |
favicon: Bitmap? | |
) { | |
super.onPageStarted(view, url, favicon) | |
Log.d("Accompanist WebView", "Page started loading for $url") | |
} | |
} | |
} | |
WebView( | |
state = state, | |
modifier = Modifier.weight(1f), | |
navigator = navigator, | |
onCreated = { webView -> | |
webView.settings.javaScriptEnabled = true | |
}, | |
client = webClient | |
) | |
} | |
} |
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