Initial commit — SyncFlow Android file sync app

Supports WebDAV, SFTP, SFTPGo, Nextcloud, ownCloud, Google Drive, Dropbox, and OneDrive. Credentials encrypted with Android Keystore. Biometric app-lock, conflict resolution, and auto-sync via WorkManager. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-22 20:21:20 +00:00
commit cff4233de6
95 changed files with 5381 additions and 0 deletions
@@ -0,0 +1,112 @@
+package com.syncflow
+
+import android.os.Build
+import android.os.Bundle
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.biometric.BiometricManager
+import androidx.biometric.BiometricManager.Authenticators.BIOMETRIC_STRONG
+import androidx.biometric.BiometricManager.Authenticators.DEVICE_CREDENTIAL
+import androidx.biometric.BiometricPrompt
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.core.content.ContextCompat
+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
+import androidx.lifecycle.lifecycleScope
+import androidx.navigation.compose.rememberNavController
+import com.syncflow.data.preferences.AppPreferences
+import com.syncflow.ui.navigation.SyncFlowNavGraph
+import com.syncflow.ui.theme.SyncFlowTheme
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class MainActivity : AppCompatActivity() {
+
+    @Inject lateinit var appPreferences: AppPreferences
+
+    private var isLocked by mutableStateOf(false)
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        installSplashScreen()
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContent {
+            SyncFlowTheme {
+                Surface(modifier = Modifier.fillMaxSize()) {
+                    SyncFlowNavGraph(rememberNavController())
+                }
+                if (isLocked) {
+                    LockOverlay()
+                    LaunchedEffect(Unit) {
+                        showBiometricPrompt(onSuccess = { isLocked = false })
+                    }
+                }
+            }
+        }
+    }
+
+    override fun onStop() {
+        super.onStop()
+        if (isChangingConfigurations) return
+        lifecycleScope.launch {
+            if (appPreferences.biometricLockEnabled.first() && canAuthenticate()) {
+                isLocked = true
+            }
+        }
+    }
+
+    private fun canAuthenticate(): Boolean {
+        val authenticators = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
+            BIOMETRIC_STRONG or DEVICE_CREDENTIAL
+        else
+            BIOMETRIC_STRONG
+        return BiometricManager.from(this).canAuthenticate(authenticators) ==
+            BiometricManager.BIOMETRIC_SUCCESS
+    }
+
+    private fun showBiometricPrompt(onSuccess: () -> Unit) {
+        val executor = ContextCompat.getMainExecutor(this)
+        val prompt = BiometricPrompt(this, executor, object : BiometricPrompt.AuthenticationCallback() {
+            override fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult) {
+                onSuccess()
+            }
+        })
+        val promptInfo = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            BiometricPrompt.PromptInfo.Builder()
+                .setTitle("Unlock SyncFlow")
+                .setSubtitle("Confirm your identity to continue")
+                .setAllowedAuthenticators(BIOMETRIC_STRONG or DEVICE_CREDENTIAL)
+                .build()
+        } else {
+            BiometricPrompt.PromptInfo.Builder()
+                .setTitle("Unlock SyncFlow")
+                .setSubtitle("Confirm your identity to continue")
+                .setNegativeButtonText("Cancel")
+                .build()
+        }
+        prompt.authenticate(promptInfo)
+    }
+}
+
+@Composable
+private fun LockOverlay() {
+    Box(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(MaterialTheme.colorScheme.background),
+        contentAlignment = Alignment.Center,
+    ) {
+        CircularProgressIndicator()
+    }
+}