feat: Ask biometric again on UI bg click after dismiss

Author: ovitrif

app/src/main/java/to/bitkit/ui/components/BiometricsView.kt

@@ -1,31 +1,59 @@
 package to.bitkit.ui.components
 
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.size
 import androidx.compose.material3.Icon
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
 import to.bitkit.R
+import to.bitkit.ui.shared.util.clickableAlpha
+import to.bitkit.ui.theme.AppThemeSurface
 import to.bitkit.ui.utils.BiometricPrompt
 
 @Composable
 fun BiometricsView(
     onSuccess: (() -> Unit)? = null,
     onFailure: (() -> Unit)? = null,
 ) {
+    var shouldShowPrompt by remember { mutableStateOf(true) }
+    val scope = rememberCoroutineScope()
+
     Column(
         horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center,
+        modifier = Modifier
+            .fillMaxSize()
+            .clickableAlpha {
+                // trick to show biometric prompt again on UI click
+                scope.launch {
+                    shouldShowPrompt = false
+                    delay(5)
+                    shouldShowPrompt = true
+                }
+            }
     ) {
-        BiometricPrompt(
-            onSuccess = { onSuccess?.invoke() },
-            onError = { onFailure?.invoke() },
-        )
+        if (shouldShowPrompt) {
+            BiometricPrompt(
+                onSuccess = { onSuccess?.invoke() },
+                onError = { onFailure?.invoke() },
+            )
+        }
         Icon(
             painter = painterResource(R.drawable.ic_fingerprint),
             contentDescription = null,
@@ -40,3 +68,11 @@ fun BiometricsView(
         )
     }
 }
+
+@Preview(showBackground = true)
+@Composable
+private fun Preview() {
+    AppThemeSurface {
+        BiometricsView()
+    }
+}