Refactoring: BackButton

Author: pynicolas

app/src/main/java/org/mydomain/myscan/view/AboutScreen.kt

@@ -27,7 +27,6 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.filled.Close
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.HorizontalDivider
@@ -65,12 +64,7 @@ fun AboutScreen(onBack: () -> Unit, onViewLibraries: () -> Unit) {
         topBar = {
             TopAppBar(
                 title = { Text(stringResource(R.string.about)) },
-                navigationIcon = {
-                    IconButton(onClick = onBack) {
-                        Icon(Icons.AutoMirrored.Filled.ArrowBack,
-                            contentDescription = stringResource(R.string.back))
-                    }
-                },
+                navigationIcon = { BackButton(onBack) },
             )
         }
     ) { paddingValues ->

app/src/main/java/org/mydomain/myscan/view/Buttons.kt

@@ -18,6 +18,7 @@ import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.outlined.Info
 import androidx.compose.material3.Button
 import androidx.compose.material3.FilledIconButton
@@ -72,6 +73,16 @@ fun SecondaryActionButton(
     }
 }
 
+@Composable
+fun BackButton(onClick: () -> Unit) {
+    IconButton(onClick = onClick) {
+        Icon(
+            Icons.AutoMirrored.Filled.ArrowBack,
+            contentDescription = stringResource(R.string.back)
+        )
+    }
+}
+
 @Composable
 fun AboutScreenNavButton(
     onClick: () -> Unit,

app/src/main/java/org/mydomain/myscan/view/DocumentScreen.kt

@@ -31,16 +31,13 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.PictureAsPdf
 import androidx.compose.material.icons.filled.RestartAlt
 import androidx.compose.material.icons.outlined.Delete
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.BottomAppBar
 import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
@@ -105,12 +102,7 @@ fun DocumentScreen(
                     titleContentColor = MaterialTheme.colorScheme.onSurface,
                 ),
                 title = { Text(stringResource(R.string.document)) },
-                navigationIcon = {
-                    IconButton(onClick = navigation.toCameraScreen) {
-                        Icon(Icons.AutoMirrored.Filled.ArrowBack,
-                            contentDescription = stringResource(R.string.back))
-                    }
-                },
+                navigationIcon = { BackButton(navigation.back) },
                 actions = {
                     AboutScreenNavButton(onClick = navigation.toAboutScreen)
                 }

app/src/main/java/org/mydomain/myscan/view/LibrariesScreen.kt

@@ -16,11 +16,7 @@ package org.mydomain.myscan.view
 
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Surface
@@ -42,12 +38,7 @@ fun LibrariesScreen(onBack: () -> Unit) {
         topBar = {
             TopAppBar(
                 title = { Text(stringResource(R.string.libraries_open_source)) },
-                navigationIcon = {
-                    IconButton(onClick = onBack) {
-                        Icon(Icons.AutoMirrored.Default.ArrowBack,
-                            contentDescription = stringResource(R.string.back))
-                    }
-                }
+                navigationIcon = { BackButton(onClick = onBack) }
             )
         }
     ) { padding ->