Add update important notice, download and install update from within the app

java/AndroidManifest.xml

@@ -37,6 +37,7 @@
     <uses-permission android:name="android.permission.WAKE_LOCK"/>
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_SPECIAL_USE"/>
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
 
     <!-- A signature-protected permission to ask AOSP Keyboard to close the software keyboard.
                  To use this, add the following line into calling application's AndroidManifest.xml
@@ -169,6 +170,8 @@
             </intent-filter>
         </receiver>
 
+        <receiver android:name="org.futo.inputmethod.updates.InstallReceiver" />
+
         <!-- Content providers -->
         <provider android:name="org.futo.inputmethod.dictionarypack.DictionaryProvider"
              android:grantUriPermissions="true"

java/res/values/strings-uix.xml

@@ -35,4 +35,5 @@
     <string name="model_import_failed">Model import failed</string>
     <string name="failed_to_import_the_selected_model">Failed to import the selected model</string>
     <string name="dismiss">Dismiss</string>
+    <string name="update">Update</string>
 </resources>

java/src/org/futo/inputmethod/latin/LatinIME.kt

@@ -38,6 +38,7 @@ import androidx.savedstate.SavedStateRegistryOwner
 import androidx.savedstate.findViewTreeSavedStateRegistryOwner
 import androidx.savedstate.setViewTreeSavedStateRegistryOwner
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
 import org.futo.inputmethod.latin.uix.BasicThemeProvider
 import org.futo.inputmethod.latin.uix.DynamicThemeProvider
@@ -213,6 +214,7 @@ class LatinIME : InputMethodService(), LifecycleOwner, ViewModelStoreOwner, Save
         languageModelFacilitator.loadHistoryLog()
 
         scheduleUpdateCheckingJob(this)
+        lifecycleScope.launch { uixManager.showUpdateNoticeIfNeeded() }
     }
 
     override fun onDestroy() {

java/src/org/futo/inputmethod/latin/uix/ActionBar.kt

@@ -1,5 +1,6 @@
 package org.futo.inputmethod.latin.uix
 
+import android.content.Context
 import android.os.Build
 import android.view.View
 import androidx.annotation.RequiresApi
@@ -105,6 +106,12 @@ import kotlin.math.roundToInt
  * TODO: Will need to make RTL languages work
  */
 
+interface ImportantNotice {
+    @Composable fun getText(): String
+    fun onDismiss(context: Context)
+    fun onOpen(context: Context)
+}
+
 
 val suggestionStylePrimary = TextStyle(
     fontFamily = FontFamily.SansSerif,
@@ -386,6 +393,45 @@ fun ExpandActionsButton(isActionsOpen: Boolean, onClick: () -> Unit) {
     }
 }
 
+@Composable
+fun ImportantNoticeView(
+    importantNotice: ImportantNotice
+) {
+    val context = LocalContext.current
+
+    Row {
+        TextButton(
+            onClick = { importantNotice.onOpen(context) },
+            modifier = Modifier
+                .weight(1.0f)
+                .fillMaxHeight(),
+            shape = RectangleShape,
+            colors = ButtonDefaults.textButtonColors(contentColor = MaterialTheme.colorScheme.onBackground),
+            enabled = true
+        ) {
+            AutoFitText(importantNotice.getText(), style = suggestionStylePrimary.copy(color = MaterialTheme.colorScheme.onBackground))
+        }
+
+        val color = MaterialTheme.colorScheme.primary
+        IconButton(
+            onClick = { importantNotice.onDismiss(context) },
+            modifier = Modifier
+                .width(42.dp)
+                .fillMaxHeight()
+                .drawBehind {
+                    drawCircle(color = color, radius = size.width / 3.0f + 1.0f)
+                },
+
+            colors = IconButtonDefaults.iconButtonColors(contentColor = MaterialTheme.colorScheme.onPrimary)
+        ) {
+            Icon(
+                painter = painterResource(id = R.drawable.close),
+                contentDescription = "Close"
+            )
+        }
+    }
+}
+
 @Composable
 fun ActionBar(
     words: SuggestedWords?,
@@ -393,7 +439,9 @@ fun ActionBar(
     onActionActivated: (Action) -> Unit,
     inlineSuggestions: List<MutableState<View?>>,
     forceOpenActionsInitially: Boolean = false,
+    importantNotice: ImportantNotice? = null
 ) {
+    val context = LocalContext.current
     val isActionsOpen = remember { mutableStateOf(forceOpenActionsInitially) }
 
     Surface(modifier = Modifier
@@ -401,28 +449,38 @@ fun ActionBar(
         .height(40.dp), color = MaterialTheme.colorScheme.background)
     {
         Row {
-            ExpandActionsButton(isActionsOpen.value) { isActionsOpen.value = !isActionsOpen.value }
-
-            if(isActionsOpen.value) {
-                LazyRow {
-                    item {
-                        ActionItems(onActionActivated)
-                    }
+            ExpandActionsButton(isActionsOpen.value) {
+                isActionsOpen.value = !isActionsOpen.value
+                if(isActionsOpen.value && importantNotice != null) {
+                    importantNotice.onDismiss(context)
                 }
-            } else if(inlineSuggestions.isNotEmpty() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                InlineSuggestions(inlineSuggestions)
-            } else if(words != null) {
-                SuggestionItems(words) {
-                    suggestionStripListener.pickSuggestionManually(
-                        words.getInfo(it)
-                    )
-                }
-            } else {
-                Spacer(modifier = Modifier.weight(1.0f))
             }
 
-            if(!isActionsOpen.value) {
-                ActionItemSmall(VoiceInputAction, onActionActivated)
+            if(importantNotice != null && !isActionsOpen.value) {
+                ImportantNoticeView(importantNotice)
+            }else {
+
+                if (isActionsOpen.value) {
+                    LazyRow {
+                        item {
+                            ActionItems(onActionActivated)
+                        }
+                    }
+                } else if (inlineSuggestions.isNotEmpty() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    InlineSuggestions(inlineSuggestions)
+                } else if (words != null) {
+                    SuggestionItems(words) {
+                        suggestionStripListener.pickSuggestionManually(
+                            words.getInfo(it)
+                        )
+                    }
+                } else {
+                    Spacer(modifier = Modifier.weight(1.0f))
+                }
+
+                if (!isActionsOpen.value) {
+                    ActionItemSmall(VoiceInputAction, onActionActivated)
+                }
             }
         }
     }
@@ -589,6 +647,34 @@ fun PreviewActionBarWithSuggestions(colorScheme: ColorScheme = DarkColorScheme)
     }
 }
 
+@Composable
+@Preview
+fun PreviewActionBarWithNotice(colorScheme: ColorScheme = DarkColorScheme) {
+    UixThemeWrapper(colorScheme) {
+        ActionBar(
+            words = exampleSuggestedWords,
+            suggestionStripListener = ExampleListener(),
+            onActionActivated = { },
+            inlineSuggestions = listOf(),
+            importantNotice = object : ImportantNotice {
+                @Composable
+                override fun getText(): String {
+                    return "Update available: v1.2.3"
+                }
+
+                override fun onDismiss(context: Context) {
+                    TODO("Not yet implemented")
+                }
+
+                override fun onOpen(context: Context) {
+                    TODO("Not yet implemented")
+                }
+
+            }
+        )
+    }
+}
+
 @Composable
 @Preview
 fun PreviewActionBarWithEmptySuggestions(colorScheme: ColorScheme = DarkColorScheme) {

java/src/org/futo/inputmethod/latin/uix/UixManager.kt

@@ -1,6 +1,8 @@
 package org.futo.inputmethod.latin.uix
 
+import android.app.Activity
 import android.content.Context
+import android.content.Intent
 import android.os.Build
 import android.view.View
 import android.view.inputmethod.InlineSuggestionsResponse
@@ -13,6 +15,7 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.material3.Surface
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.mutableStateOf
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.layout.onSizeChanged
 import androidx.compose.ui.platform.ComposeView
@@ -27,8 +30,12 @@ import org.futo.inputmethod.latin.common.Constants
 import org.futo.inputmethod.latin.inputlogic.InputLogic
 import org.futo.inputmethod.latin.suggestions.SuggestionStripView
 import org.futo.inputmethod.latin.uix.actions.EmojiAction
+import org.futo.inputmethod.latin.uix.settings.SettingsActivity
 import org.futo.inputmethod.latin.uix.theme.ThemeOption
 import org.futo.inputmethod.latin.uix.theme.UixThemeWrapper
+import org.futo.inputmethod.latin.uix.voiceinput.downloader.DownloadActivity
+import org.futo.inputmethod.updates.checkForUpdateAndSaveToPreferences
+import org.futo.inputmethod.updates.retrieveSavedLastUpdateCheckResult
 
 private class LatinIMEActionInputTransaction(
     private val inputLogic: InputLogic,
@@ -141,6 +148,7 @@ class UixManager(private val latinIME: LatinIME) {
     private val keyboardManagerForAction = UixActionKeyboardManager(this, latinIME)
 
     private var mainKeyboardHidden = false
+    private var currentNotice: MutableState<ImportantNotice?> = mutableStateOf(null)
 
     var currWindowActionWindow: ActionWindow? = null
 
@@ -172,7 +180,8 @@ class UixManager(private val latinIME: LatinIME) {
                 suggestedWordsOrNull,
                 latinIME.latinIMELegacy as SuggestionStripView.Listener,
                 inlineSuggestions = inlineSuggestions,
-                onActionActivated = { onActionActivated(it) }
+                onActionActivated = { onActionActivated(it) },
+                importantNotice = currentNotice.value
             )
         }
     }
@@ -286,6 +295,35 @@ class UixManager(private val latinIME: LatinIME) {
         }
     }
 
+    suspend fun showUpdateNoticeIfNeeded() {
+        val updateInfo = retrieveSavedLastUpdateCheckResult(latinIME)
+        if(updateInfo != null && updateInfo.isNewer()) {
+            currentNotice.value = object : ImportantNotice {
+                @Composable
+                override fun getText(): String {
+                    return "Update available: ${updateInfo.nextVersionString}"
+                }
+
+                override fun onDismiss(context: Context) {
+                    currentNotice.value = null
+                }
+
+                override fun onOpen(context: Context) {
+                    currentNotice.value = null
+
+                    val intent = Intent(context, SettingsActivity::class.java)
+                    intent.putExtra("navDest", "update")
+
+                    if(context !is Activity) {
+                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                    }
+
+                    context.startActivity(intent)
+                }
+            }
+        }
+    }
+
     fun createComposeView(): View {
         if(composeView != null) {
             composeView = null

java/src/org/futo/inputmethod/latin/uix/settings/SettingsActivity.kt

@@ -167,6 +167,17 @@ class SettingsActivity : ComponentActivity() {
 
             this.themeOption.value = themeOption
         }
+
+        val intent = intent
+        if(intent != null) {
+            val destination = intent.getStringExtra("navDest")
+            if(destination != null) {
+                lifecycleScope.launch {
+                    delay(1000L)
+                    navController.navigate(destination)
+                }
+            }
+        }
     }
 
     override fun onResume() {

java/src/org/futo/inputmethod/latin/uix/settings/SettingsNavigator.kt

@@ -57,6 +57,9 @@ fun SettingsNavigator(
                 navController
             )
         }
+        dialog("update") {
+            UpdateDialog(navController = navController)
+        }
         addModelManagerNavigation(navController)
     }
 }

java/src/org/futo/inputmethod/latin/uix/settings/UpdateScreen.kt

@@ -0,0 +1,215 @@
+package org.futo.inputmethod.latin.uix.settings
+
+import android.app.PendingIntent.FLAG_MUTABLE
+import android.app.PendingIntent.FLAG_UPDATE_CURRENT
+import android.app.PendingIntent.getBroadcast
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageInstaller
+import android.util.Log
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Info
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalInspectionMode
+import androidx.compose.ui.platform.LocalLifecycleOwner
+import androidx.compose.ui.res.stringResource
+import androidx.lifecycle.lifecycleScope
+import androidx.navigation.NavHostController
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.DelicateCoroutinesApi
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.withContext
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import org.futo.inputmethod.latin.R
+import org.futo.inputmethod.latin.uix.InfoDialog
+import org.futo.inputmethod.latin.uix.getSetting
+import org.futo.inputmethod.updates.InstallReceiver
+import org.futo.inputmethod.updates.LAST_UPDATE_CHECK_RESULT
+import org.futo.inputmethod.updates.UpdateResult
+import java.io.InputStream
+import java.io.OutputStream
+
+
+private fun InputStream.copyToOutputStream(inputStreamLength: Long, outputStream: OutputStream, onProgress: (Float) -> Unit) {
+    val buffer = ByteArray(16384);
+    var n: Int;
+    var total = 0;
+    val inputStreamLengthFloat = inputStreamLength.toFloat();
+
+    while (read(buffer).also { n = it } >= 0) {
+        total += n;
+        outputStream.write(buffer, 0, n);
+        onProgress.invoke(total.toFloat() / inputStreamLengthFloat);
+    }
+}
+
+
+private suspend fun install(scope: CoroutineScope, context: Context, inputStream: InputStream, dataLength: Long, updateStatusText: (String) -> Unit) {
+    var lastProgressText = "";
+    var session: PackageInstaller.Session? = null;
+
+    try {
+        //Log.i("UpdateScreen", "Hooked InstallReceiver.onReceiveResult.")
+        InstallReceiver.onReceiveResult.onEach { message -> updateStatusText("Fatal error: $message") }.launchIn(scope)
+
+        val packageInstaller: PackageInstaller = context.packageManager.packageInstaller;
+        val params = PackageInstaller.SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL);
+        val sessionId = packageInstaller.createSession(params);
+        session = packageInstaller.openSession(sessionId)
+
+        session.openWrite("package", 0, dataLength).use { sessionStream ->
+            inputStream.copyToOutputStream(dataLength, sessionStream) { progress ->
+                val progressText = "${(progress * 100.0f).toInt()}%";
+                if (lastProgressText != progressText) {
+                    lastProgressText = progressText;
+
+                    //TODO: Use proper scope
+                    //GlobalScope.launch(Dispatchers.Main) {
+                        //_textProgress.text = progressText;
+                    //};
+                }
+            }
+
+            session.fsync(sessionStream);
+        };
+
+        val intent = Intent(context, InstallReceiver::class.java);
+        val pendingIntent = getBroadcast(context, 0, intent, FLAG_MUTABLE or FLAG_UPDATE_CURRENT);
+        val statusReceiver = pendingIntent.intentSender;
+
+        session.commit(statusReceiver);
+        session.close();
+
+        withContext(Dispatchers.Main) {
+            updateStatusText("Installing update")
+            //_textProgress.text = "";
+            //_text.text = context.resources.getText(R.string.installing_update);
+        }
+    } catch (e: Throwable) {
+        Log.w("UpdateScreen", "Exception thrown while downloading and installing latest version of app.", e);
+        session?.abandon();
+        withContext(Dispatchers.Main) {
+            updateStatusText("Failed to install update")
+        }
+    } finally {
+        withContext(Dispatchers.Main) {
+            Log.i("UpdateScreen", "Keep screen on unset install")
+            //window?.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        }
+    }
+}
+
+@DelicateCoroutinesApi
+private suspend fun downloadAndInstall(scope: CoroutineScope, context: Context, updateResult: UpdateResult, updateStatusText: (String) -> Unit) = GlobalScope.launch(Dispatchers.IO) {
+    var inputStream: InputStream? = null;
+    try {
+        val httpClient = OkHttpClient()
+        val request = Request.Builder().method("GET", null).url(updateResult.apkUrl).build()
+
+        val response = httpClient.newCall(request).execute()
+        val body = response.body
+        if (response.isSuccessful && body != null) {
+            inputStream = body.byteStream();
+            val dataLength = body.contentLength();
+            install(scope, context, inputStream, dataLength, updateStatusText)
+        } else {
+            throw Exception("Failed to download latest version of app.");
+        }
+    } catch (e: Throwable) {
+        Log.w("UpdateScreen", "Exception thrown while downloading and installing latest version of app.", e);
+        withContext(Dispatchers.Main) {
+            updateStatusText("Failed to download update: ${e.message}");
+        }
+    } finally {
+        inputStream?.close();
+    }
+}
+
+@Composable
+fun UpdateDialog(navController: NavHostController) {
+    val scope = LocalLifecycleOwner.current
+    val context = LocalContext.current
+    val updateInfo = remember { runBlocking {
+        context.getSetting(LAST_UPDATE_CHECK_RESULT, "")
+    } }
+
+    val lastUpdateResult = if(!LocalInspectionMode.current){
+        remember { UpdateResult.fromString(updateInfo) }
+    } else {
+        UpdateResult(123, "abc", "1.2.3")
+    }
+
+    val isDownloading = remember { mutableStateOf(false) }
+    val showSpinner = remember { mutableStateOf(true) }
+    val statusText = remember { mutableStateOf("Downloading ${lastUpdateResult?.nextVersionString}") }
+
+    if(lastUpdateResult == null || !lastUpdateResult.isNewer()) {
+        InfoDialog(title = "Up-to-date", body = "As of the last update check, the app is up to date.")
+    } else {
+        AlertDialog(
+            icon = {
+                Icon(Icons.Filled.Info, contentDescription = "Info")
+            },
+            title = {
+                Text(text = "Update available")
+            },
+            text = {
+                if(isDownloading.value) {
+                    Column(modifier = Modifier.fillMaxWidth()) {
+                        if(showSpinner.value) {
+                            CircularProgressIndicator(
+                                modifier = Modifier.align(Alignment.CenterHorizontally),
+                                color = MaterialTheme.colorScheme.onSurface
+                            )
+                        }
+                        Text(text = statusText.value)
+                    }
+                } else {
+                    Text(text = "A new version ${lastUpdateResult.nextVersionString} is available, would you like to update?")
+                }
+            },
+            onDismissRequest = {
+                if(!isDownloading.value) {
+                    navController.navigateUp()
+                }
+            },
+            confirmButton = {
+                TextButton(onClick = {
+                    isDownloading.value = true
+                    GlobalScope.launch { downloadAndInstall(scope.lifecycleScope, context, lastUpdateResult) {
+                        statusText.value = it
+                        showSpinner.value = false
+                    } }
+                }, enabled = !isDownloading.value) {
+                    Text(stringResource(R.string.update))
+                }
+            },
+            dismissButton = {
+                TextButton(onClick = {
+                    navController.navigateUp()
+                }, enabled = !isDownloading.value) {
+                    Text(stringResource(R.string.dismiss))
+                }
+            }
+        )
+    }
+}

java/src/org/futo/inputmethod/latin/uix/settings/pages/Home.kt

@@ -31,7 +31,7 @@ fun HomeScreen(navController: NavHostController = rememberNavController()) {
         Spacer(modifier = Modifier.height(24.dp))
         ScreenTitle("FUTO Keyboard Settings")
 
-        ConditionalUpdate()
+        ConditionalUpdate(navController)
 
         NavigationItem(
             title = "Languages",

java/src/org/futo/inputmethod/updates/InstallReceiver.kt

@@ -0,0 +1,57 @@
+package org.futo.inputmethod.updates
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageInstaller
+import android.os.Build
+import android.util.Log
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.launch
+
+
+class InstallReceiver : BroadcastReceiver() {
+    private val TAG = "InstallReceiver"
+
+    companion object {
+        val onReceiveResult = MutableSharedFlow<String>(0)
+    }
+
+    override fun onReceive(context: Context, intent: Intent) {
+        val status = intent.getIntExtra(PackageInstaller.EXTRA_STATUS, -1)
+        Log.i(TAG, "Received status $status.")
+
+        GlobalScope.launch {
+            when (status) {
+                PackageInstaller.STATUS_PENDING_USER_ACTION -> {
+                    val activityIntent: Intent? = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                        intent.getParcelableExtra(Intent.EXTRA_INTENT, Intent::class.java)
+                    } else {
+                        intent.getParcelableExtra(Intent.EXTRA_INTENT)
+                    }
+
+                    if (activityIntent == null) {
+                        Log.w(TAG, "Received STATUS_PENDING_USER_ACTION and activity intent is null.")
+                        return@launch
+                    }
+                    context.startActivity(activityIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK))
+                }
+                PackageInstaller.STATUS_SUCCESS -> onReceiveResult.emit("Success!")
+                PackageInstaller.STATUS_FAILURE -> onReceiveResult.emit("General failure")
+                PackageInstaller.STATUS_FAILURE_ABORTED -> onReceiveResult.emit("The operation failed because it was actively aborted")
+                PackageInstaller.STATUS_FAILURE_BLOCKED -> onReceiveResult.emit("The operation failed because it was blocked")
+                PackageInstaller.STATUS_FAILURE_CONFLICT -> onReceiveResult.emit("The operation failed because it conflicts (or is inconsistent with) with another package already installed on the device")
+                PackageInstaller.STATUS_FAILURE_INCOMPATIBLE -> onReceiveResult.emit("The operation failed because it is fundamentally incompatible with this device")
+                PackageInstaller.STATUS_FAILURE_INVALID -> onReceiveResult.emit("The operation failed because one or more of the APKs was invalid")
+                PackageInstaller.STATUS_FAILURE_STORAGE -> onReceiveResult.emit("The operation failed because of storage issues")
+                else -> {
+                    val msg = intent.getStringExtra(PackageInstaller.EXTRA_STATUS_MESSAGE)
+                    if(msg != null) {
+                        onReceiveResult.emit(msg)
+                    }
+                }
+            }
+        }
+    }
+}

java/src/org/futo/inputmethod/updates/Update.kt

@@ -13,6 +13,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalInspectionMode
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.datastore.preferences.core.stringPreferencesKey
+import androidx.navigation.NavHostController
 import org.futo.inputmethod.latin.uix.settings.SettingItem
 import org.futo.inputmethod.latin.uix.settings.useDataStore
 
@@ -33,7 +34,7 @@ fun Context.openURI(uri: String, newTask: Boolean = false) {
 
 @Composable
 @Preview
-fun ConditionalUpdate() {
+fun ConditionalUpdate(navController: NavHostController) {
     val (updateInfo, _) = useDataStore(key = LAST_UPDATE_CHECK_RESULT, default = "")
 
     val lastUpdateResult = if(!LocalInspectionMode.current){
@@ -48,7 +49,8 @@ fun ConditionalUpdate() {
             title = "Update Available",
             subtitle = "${UpdateResult.currentVersionString()} -> ${lastUpdateResult.nextVersionString}",
             onClick = {
-                context.openURI(lastUpdateResult.apkUrl)
+                navController.navigate("update")
+                //context.openURI(lastUpdateResult.apkUrl)
             }
         ) {
             Icon(Icons.Default.ArrowForward, contentDescription = "Go")

java/src/org/futo/inputmethod/updates/UpdateChecking.kt

@@ -30,7 +30,6 @@ suspend fun checkForUpdate(): UpdateResult? {
             val response = httpClient.newCall(request).execute()
 
             val body = response.body
-
             val result = if (body != null) {
                 val data = body.string().lines()
                 body.closeQuietly()
@@ -39,15 +38,18 @@ suspend fun checkForUpdate(): UpdateResult? {
                 val latestVersionUrl = data[1]
                 val latestVersionString = data[2]
                 if(latestVersionUrl.startsWith("https://voiceinput.futo.org/") || latestVersionUrl.startsWith("https://keyboard.futo.org/")){
+                    Log.d("UpdateChecking", "Retrieved update for version ${latestVersionString}")
                     UpdateResult(
                         nextVersion = latestVersion,
                         apkUrl = latestVersionUrl,
                         nextVersionString = latestVersionString
                     )
                 } else {
+                    Log.e("UpdateChecking", "Update URL contains unknown prefix: ${latestVersionUrl}")
                     null
                 }
             } else {
+                Log.e("UpdateChecking", "Body of result is null")
                 null
             }
 
@@ -55,6 +57,8 @@ suspend fun checkForUpdate(): UpdateResult? {
 
             result
         } catch (e: Exception) {
+            Log.e("UpdateChecking", "Checking update failed with exception")
+            e.printStackTrace()
             null
         }
     }

java/src/org/futo/inputmethod/updates/UpdateResult.kt

@@ -1,5 +1,6 @@
 package org.futo.inputmethod.updates
 
+import android.util.Log
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.SerializationException
 import kotlinx.serialization.json.Json
@@ -32,8 +33,12 @@ data class UpdateResult(
             try {
                 return Json.decodeFromString<UpdateResult>(value)
             } catch(e: SerializationException) {
+                Log.e("UpdateResult", "Failed to deserialize UpdateResult value $value")
+                e.printStackTrace()
                 return null
             } catch(e: IllegalArgumentException) {
+                Log.e("UpdateResult", "Failed to deserialize UpdateResult value $value")
+                e.printStackTrace()
                 return null
             }
         }