v0.14.2

- Save image
- LNURL edit in the profile
- Bugfix crashing the Lightning Tips with non numeric values in the amount.

app/build.gradle

@@ -11,8 +11,8 @@ android {
         applicationId "com.vitorpamplona.amethyst"
         minSdk 26
         targetSdk 33
-        versionCode 40
-        versionName "0.14.0"
+        versionCode 42
+        versionName "0.14.2"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
@@ -22,8 +22,8 @@ android {
 
     buildTypes {
         release {
-            //minifyEnabled false
-            //proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
             resValue "string", "app_name", "@string/app_name_release"
         }
         debug {
@@ -130,6 +130,7 @@ dependencies {
 
     // Use this dependency to use the translate text
     implementation 'com.google.mlkit:translate:17.0.1'
+    implementation 'com.google.mlkit:language-id:17.0.4'
     implementation 'com.google.android.gms:play-services-mlkit-language-id:17.0.0'
 
     testImplementation 'junit:junit:4.13.2'

app/proguard-rules.pro

@@ -26,6 +26,10 @@
 # For the NostrPostr library
 -keep class nostr.postr.** { *; }
 -keep class nostr.postr.events.** { *; }
+# Json parsing
 -keep class com.google.gson.reflect.** { *; }
+-keep class * extends com.google.gson.reflect.TypeToken
+-keep public class * implements java.lang.reflect.Type
+
 -keep class com.vitorpamplona.amethyst.model.** { *; }
 -keep class com.vitorpamplona.amethyst.service.** { *; }

app/src/main/AndroidManifest.xml

@@ -4,8 +4,13 @@
 
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.CAMERA" />
 
+    <!-- Used for SDK < 29 -->
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        tools:ignore="ScopedStorage" />
+
     <application
         android:allowBackup="false"
         android:dataExtractionRules="@xml/data_extraction_rules"

app/src/main/java/com/vitorpamplona/amethyst/LocalPreferences.kt

@@ -4,16 +4,10 @@ import android.content.Context
 import com.google.gson.GsonBuilder
 import com.google.gson.reflect.TypeToken
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.model.Channel
-import com.vitorpamplona.amethyst.model.DefaultChannels
-import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.model.toByteArray
-import com.vitorpamplona.amethyst.ui.actions.NewRelayListViewModel
-import com.vitorpamplona.amethyst.ui.navigation.Route
+import com.vitorpamplona.amethyst.model.RelaySetupInfo
 import java.util.Locale
 import nostr.postr.Persona
-import nostr.postr.events.ContactListEvent
-import nostr.postr.events.Event
 import nostr.postr.toHex
 
 class LocalPreferences(context: Context) {
@@ -52,8 +46,8 @@ class LocalPreferences(context: Context) {
       val hiddenUsers = getStringSet("hidden_users", emptySet()) ?: setOf()
       val localRelays = gson.fromJson(
         getString("relays", "[]"),
-        object : TypeToken<Set<NewRelayListViewModel.Relay>>() {}.type
-      ) ?: setOf<NewRelayListViewModel.Relay>()
+        object : TypeToken<Set<RelaySetupInfo>>() {}.type
+      ) ?: setOf<RelaySetupInfo>()
 
       val dontTranslateFrom = getStringSet("dontTranslateFrom", null) ?: setOf()
       val translateTo = getString("translateTo", null) ?: Locale.getDefault().language

app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt

@@ -1,8 +1,6 @@
 package com.vitorpamplona.amethyst.model
 
 import android.content.res.Resources
-import androidx.compose.material.DropdownMenuItem
-import androidx.compose.material.Text
 import androidx.core.os.ConfigurationCompat
 import androidx.lifecycle.LiveData
 import com.vitorpamplona.amethyst.service.relays.Constants
@@ -16,7 +14,6 @@ import com.vitorpamplona.amethyst.service.relays.Client
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.Relay
 import com.vitorpamplona.amethyst.service.relays.RelayPool
-import com.vitorpamplona.amethyst.ui.actions.NewRelayListViewModel
 import java.util.Date
 import java.util.Locale
 import java.util.concurrent.atomic.AtomicBoolean
@@ -53,7 +50,7 @@ class Account(
   val loggedIn: Persona,
   var followingChannels: Set<String> = DefaultChannels,
   var hiddenUsers: Set<String> = setOf(),
-  var localRelays: Set<NewRelayListViewModel.Relay> = Constants.defaultRelays.toSet(),
+  var localRelays: Set<RelaySetupInfo> = Constants.defaultRelays.toSet(),
   var dontTranslateFrom: Set<String> = getLanguagesSpokenByUser(),
   var translateTo: String = Locale.getDefault().language
 ) {
@@ -435,7 +432,7 @@ class Account(
           innerReports).toSet()
   }
 
-  fun saveRelayList(value: List<NewRelayListViewModel.Relay>) {
+  fun saveRelayList(value: List<RelaySetupInfo>) {
     localRelays = value.toSet()
     sendNewRelayList(value.associate { it.url to ContactListEvent.ReadWrite(it.read, it.write) } )
   }

app/src/main/java/com/vitorpamplona/amethyst/model/Note.kt

@@ -17,6 +17,7 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import com.vitorpamplona.amethyst.service.relays.Relay
 import java.util.Date
+import java.util.concurrent.atomic.AtomicBoolean
 import java.util.regex.Matcher
 import java.util.regex.Pattern
 import nostr.postr.events.Event
@@ -194,17 +195,19 @@ class Note(val idHex: String) {
 
 class NoteLiveData(val note: Note): LiveData<NoteState>(NoteState(note)) {
     // Refreshes observers in batches.
-    var handlerWaiting = false
+    var handlerWaiting = AtomicBoolean()
+
     @Synchronized
     fun invalidateData() {
-        if (handlerWaiting) return
+        if (!hasActiveObservers()) return
+        if (handlerWaiting.getAndSet(true)) return
 
-        handlerWaiting = true
-        val scope = CoroutineScope(Job() + Dispatchers.Default)
+        handlerWaiting.set(true)
+        val scope = CoroutineScope(Job() + Dispatchers.Main)
         scope.launch {
             delay(100)
             refresh()
-            handlerWaiting = false
+            handlerWaiting.set(false)
         }
     }
 

app/src/main/java/com/vitorpamplona/amethyst/model/RelaySetupInfo.kt

@@ -0,0 +1,13 @@
+package com.vitorpamplona.amethyst.model
+
+import com.vitorpamplona.amethyst.service.relays.FeedType
+
+data class RelaySetupInfo(
+    val url: String,
+    val read: Boolean,
+    val write: Boolean,
+    val errorCount: Int = 0,
+    val downloadCount: Int = 0,
+    val uploadCount: Int = 0,
+    val feedTypes: Set<FeedType>
+)

app/src/main/java/com/vitorpamplona/amethyst/model/User.kt

@@ -10,6 +10,9 @@ import com.vitorpamplona.amethyst.ui.note.toShortenHex
 import fr.acinq.secp256k1.Hex
 import java.util.Collections
 import java.util.concurrent.ConcurrentHashMap
+import java.util.concurrent.atomic.AtomicBoolean
+import kotlin.time.ExperimentalTime
+import kotlin.time.measureTimedValue
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -81,7 +84,11 @@ class User(val pubkeyHex: String) {
         liveFollows.invalidateData()
         user.liveFollows.invalidateData()
 
-        listeners.forEach {
+        updateSubscribers {
+            it.onFollowsChange()
+        }
+
+        user.updateSubscribers {
             it.onFollowsChange()
         }
     }
@@ -95,6 +102,40 @@ class User(val pubkeyHex: String) {
         updateSubscribers {
             it.onFollowsChange()
         }
+
+        user.updateSubscribers {
+            it.onFollowsChange()
+        }
+    }
+
+    fun follow(users: Set<User>, followedAt: Long) {
+        follows = follows + users
+        users.forEach {
+            it.followers = it.followers + this
+            it.liveFollows.invalidateData()
+            it.updateSubscribers {
+                it.onFollowsChange()
+            }
+        }
+
+        liveFollows.invalidateData()
+        updateSubscribers {
+            it.onFollowsChange()
+        }
+    }
+    fun unfollow(users: Set<User>) {
+        follows = follows - users
+        users.forEach {
+            it.followers = it.followers - this
+            it.liveFollows.invalidateData()
+            it.updateSubscribers {
+                it.onFollowsChange()
+            }
+        }
+        liveFollows.invalidateData()
+        updateSubscribers {
+            it.onFollowsChange()
+        }
     }
 
     fun addTaggedPost(note: Note) {
@@ -164,17 +205,13 @@ class User(val pubkeyHex: String) {
         updateSubscribers { it.onNewRelayInfo() }
         liveRelayInfo.invalidateData()
     }
-
+    
     fun updateFollows(newFollows: Set<User>, updateAt: Long) {
         val toBeAdded = newFollows - follows
         val toBeRemoved = follows - newFollows
 
-        toBeAdded.forEach {
-            follow(it, updateAt)
-        }
-        toBeRemoved.forEach {
-            unfollow(it)
-        }
+        follow(toBeAdded, updateAt)
+        unfollow(toBeRemoved)
 
         updatedFollowsAt = updateAt
     }
@@ -239,19 +276,20 @@ class User(val pubkeyHex: String) {
     }
 
     // Refreshes observers in batches.
-    var modelHandlerWaiting = false
+    var modelHandlerWaiting = AtomicBoolean()
+
     @Synchronized
     fun updateSubscribers(on: (Listener) -> Unit) {
-        if (modelHandlerWaiting) return
+        if (modelHandlerWaiting.getAndSet(true)) return
 
-        modelHandlerWaiting = true
+        modelHandlerWaiting.set(true)
         val scope = CoroutineScope(Job() + Dispatchers.Default)
         scope.launch {
             delay(100)
             listeners.forEach {
                 on(it)
             }
-            modelHandlerWaiting = false
+            modelHandlerWaiting.set(false)
         }
     }
 
@@ -292,17 +330,19 @@ class UserMetadata {
 class UserLiveData(val user: User): LiveData<UserState>(UserState(user)) {
 
     // Refreshes observers in batches.
-    var handlerWaiting = false
+    var handlerWaiting = AtomicBoolean()
+
     @Synchronized
     fun invalidateData() {
-        if (handlerWaiting) return
+        if (!hasActiveObservers()) return
+        if (handlerWaiting.getAndSet(true)) return
 
-        handlerWaiting = true
+        handlerWaiting.set(true)
         val scope = CoroutineScope(Job() + Dispatchers.Main)
         scope.launch {
             delay(100)
             refresh()
-            handlerWaiting = false
+            handlerWaiting.set(false)
         }
     }
 

app/src/main/java/com/vitorpamplona/amethyst/service/NostrSearchEventOrUserDataSource.kt

@@ -2,10 +2,13 @@ package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.decodePublicKey
+import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 import nostr.postr.bechToBytes
+import nostr.postr.events.MetadataEvent
+import nostr.postr.events.TextNoteEvent
 import nostr.postr.toHex
 
 object NostrSearchEventOrUserDataSource: NostrDataSource<Note>("SingleEventFeed") {
@@ -21,13 +24,16 @@ object NostrSearchEventOrUserDataSource: NostrDataSource<Note>("SingleEventFeed"
       TypedFilter(
         types = FeedType.values().toSet(),
         filter = JsonFilter(
-        ids = listOfNotNull(hexToWatch)
-      )),
+          ids = listOfNotNull(hexToWatch)
+        )
+      ),
       TypedFilter(
         types = FeedType.values().toSet(),
         filter = JsonFilter(
-        authors = listOfNotNull(hexToWatch)
-      ))
+          kinds = listOf(MetadataEvent.kind),
+          authors = listOfNotNull(hexToWatch)
+        )
+      )
     )
   }
 

app/src/main/java/com/vitorpamplona/amethyst/service/relays/Constants.kt

@@ -1,6 +1,6 @@
 package com.vitorpamplona.amethyst.service.relays
 
-import com.vitorpamplona.amethyst.ui.actions.NewRelayListViewModel
+import com.vitorpamplona.amethyst.model.RelaySetupInfo
 
 object Constants {
   val activeTypes = setOf(FeedType.FOLLOWS, FeedType.PRIVATE_DMS)
@@ -14,15 +14,15 @@ object Constants {
 
   val defaultRelays = arrayOf(
     // Free relays
-    NewRelayListViewModel.Relay("wss://nostr.bitcoiner.social", read = true, write = true, feedTypes = activeTypes),
-    NewRelayListViewModel.Relay("wss://relay.nostr.bg", read = true, write = true, feedTypes = activeTypes),
-    NewRelayListViewModel.Relay("wss://relay.snort.social", read = true, write = true, feedTypes = activeTypes),
-    NewRelayListViewModel.Relay("wss://relay.damus.io", read = true, write = true, feedTypes = activeTypes),
-    NewRelayListViewModel.Relay("wss://nostr.oxtr.dev", read = true, write = true, feedTypes = activeTypes),
-    NewRelayListViewModel.Relay("wss://nostr-pub.wellorder.net", read = true, write = true, feedTypes = activeTypes),
-    NewRelayListViewModel.Relay("wss://nostr.mom", read = true, write = true, feedTypes = activeTypes),
-    NewRelayListViewModel.Relay("wss://no.str.cr", read = true, write = true, feedTypes = activeTypes),
-    NewRelayListViewModel.Relay("wss://nos.lol", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://nostr.bitcoiner.social", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://relay.nostr.bg", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://relay.snort.social", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://relay.damus.io", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://nostr.oxtr.dev", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://nostr-pub.wellorder.net", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://nostr.mom", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://no.str.cr", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://nos.lol", read = true, write = true, feedTypes = activeTypes),
 
     // Less Reliable
     //NewRelayListViewModel.Relay("wss://nostr.orangepill.dev", read = true, write = true, feedTypes = activeTypes),
@@ -35,14 +35,14 @@ object Constants {
     //NewRelayListViewModel.Relay("wss://brb.io", read = true, write = true, feedTypes = activeTypes),
 
     // Paid relays
-    NewRelayListViewModel.Relay("wss://relay.nostr.com.au", read = true, write = false, feedTypes = activeTypesGlobalChats),
-    NewRelayListViewModel.Relay("wss://eden.nostr.land", read = true, write = false, feedTypes = activeTypesGlobalChats),
-    NewRelayListViewModel.Relay("wss://nostr.milou.lol", read = true, write = false, feedTypes = activeTypesGlobalChats),
-    NewRelayListViewModel.Relay("wss://puravida.nostr.land", read = true, write = false, feedTypes = activeTypesGlobalChats),
-    NewRelayListViewModel.Relay("wss://nostr.wine", read = true, write = false, feedTypes = activeTypesGlobalChats),
-    NewRelayListViewModel.Relay("wss://nostr.inosta.cc", read = true, write = false, feedTypes = activeTypesGlobalChats),
-    NewRelayListViewModel.Relay("wss://atlas.nostr.land", read = true, write = false, feedTypes = activeTypesGlobalChats),
-    NewRelayListViewModel.Relay("wss://relay.orangepill.dev", read = true, write = false, feedTypes = activeTypesGlobalChats),
-    NewRelayListViewModel.Relay("wss://relay.nostrati.com", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://relay.nostr.com.au", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://eden.nostr.land", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://nostr.milou.lol", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://puravida.nostr.land", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://nostr.wine", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://nostr.inosta.cc", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://atlas.nostr.land", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://relay.orangepill.dev", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://relay.nostrati.com", read = true, write = false, feedTypes = activeTypesGlobalChats),
   )
 }

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/ImageSaver.kt

@@ -0,0 +1,147 @@
+package com.vitorpamplona.amethyst.ui.actions
+
+import android.content.ContentResolver
+import android.content.ContentValues
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import android.os.Environment
+import android.provider.MediaStore
+import androidx.annotation.RequiresApi
+import androidx.core.net.toUri
+import okhttp3.*
+import okio.BufferedSource
+import okio.IOException
+import okio.sink
+import java.io.File
+
+
+object ImageSaver {
+    /**
+     * Saves the image to the gallery.
+     * May require a storage permission.
+     *
+     * @see PICTURES_SUBDIRECTORY
+     */
+    fun saveImage(
+        url: String,
+        context: Context,
+        onSuccess: () -> Any?,
+        onError: (Throwable) -> Any?,
+    ) {
+        val client = OkHttpClient.Builder().build()
+
+        val request = Request.Builder()
+            .get()
+            .url(url)
+            .build()
+
+        client.newCall(request).enqueue(object : Callback {
+            override fun onFailure(call: Call, e: IOException) {
+                e.printStackTrace()
+                onError(e)
+            }
+
+            override fun onResponse(call: Call, response: Response) {
+                try {
+                    check(response.isSuccessful)
+
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+                        val contentType = response.header("Content-Type")
+                        checkNotNull(contentType) {
+                            "Can't find out the content type"
+                        }
+
+                        saveContentQ(
+                            displayName = File(url).nameWithoutExtension,
+                            contentType = contentType,
+                            contentSource = response.body.source(),
+                            contentResolver = context.contentResolver,
+                        )
+                    } else {
+                        saveContentDefault(
+                            fileName = File(url).name,
+                            contentSource = response.body.source(),
+                            context = context,
+                        )
+                    }
+                    onSuccess()
+                } catch (e: Exception) {
+                    e.printStackTrace()
+                    onError(e)
+                }
+            }
+        })
+    }
+
+    @RequiresApi(Build.VERSION_CODES.Q)
+    private fun saveContentQ(
+        displayName: String,
+        contentType: String,
+        contentSource: BufferedSource,
+        contentResolver: ContentResolver,
+    ) {
+        val contentValues = ContentValues().apply {
+            put(MediaStore.MediaColumns.DISPLAY_NAME, displayName)
+            put(MediaStore.MediaColumns.MIME_TYPE, contentType)
+            put(
+                MediaStore.MediaColumns.RELATIVE_PATH,
+                Environment.DIRECTORY_PICTURES + File.separatorChar + PICTURES_SUBDIRECTORY
+            )
+        }
+
+        val uri =
+            contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)
+        checkNotNull(uri) {
+            "Can't insert the new content"
+        }
+
+        try {
+            val outputStream = contentResolver.openOutputStream(uri)
+            checkNotNull(outputStream) {
+                "Can't open the content output stream"
+            }
+
+            outputStream.use {
+                contentSource.readAll(it.sink())
+            }
+        } catch (e: Exception) {
+            contentResolver.delete(uri, null, null)
+            throw e
+        }
+    }
+
+    private fun saveContentDefault(
+        fileName: String,
+        contentSource: BufferedSource,
+        context: Context,
+    ) {
+        val subdirectory = File(
+            Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
+            PICTURES_SUBDIRECTORY
+        )
+
+        if (!subdirectory.exists()) {
+            subdirectory.mkdirs()
+        }
+
+        val outputFile = File(subdirectory, fileName)
+
+        outputFile
+            .outputStream()
+            .use {
+                contentSource.readAll(it.sink())
+            }
+
+        // Call the media scanner manually, so the image
+        // appears in the gallery faster.
+        context.sendBroadcast(
+            Intent(
+                Intent.ACTION_MEDIA_SCANNER_SCAN_FILE,
+                outputFile.toUri()
+            )
+        )
+    }
+
+    private const val PICTURES_SUBDIRECTORY = "Amethyst"
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewRelayListView.kt

@@ -1,25 +1,19 @@
 package com.vitorpamplona.amethyst.ui.actions
 
-import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.Button
 import androidx.compose.material.ButtonDefaults
-import androidx.compose.material.Checkbox
-import androidx.compose.material.Colors
 import androidx.compose.material.Divider
 import androidx.compose.material.Icon
 import androidx.compose.material.IconButton
@@ -28,18 +22,12 @@ import androidx.compose.material.OutlinedTextField
 import androidx.compose.material.Surface
 import androidx.compose.material.Text
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.Cancel
-import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Download
-import androidx.compose.material.icons.filled.DownloadDone
 import androidx.compose.material.icons.filled.Groups
 import androidx.compose.material.icons.filled.Public
-import androidx.compose.material.icons.filled.Share
 import androidx.compose.material.icons.filled.SyncProblem
 import androidx.compose.material.icons.filled.Upload
-import androidx.compose.material.icons.outlined.BarChart
-import androidx.compose.material.icons.outlined.Delete
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
@@ -48,12 +36,10 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
-import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
-import androidx.compose.ui.text.input.KeyboardCapitalization
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
@@ -62,6 +48,7 @@ import androidx.compose.ui.window.DialogProperties
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.RelaySetupInfo
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import java.lang.Math.round
 
@@ -206,16 +193,16 @@ fun ServerConfigHeader() {
 
 @Composable
 fun ServerConfig(
-    item: NewRelayListViewModel.Relay,
-    onToggleDownload: (NewRelayListViewModel.Relay) -> Unit,
-    onToggleUpload: (NewRelayListViewModel.Relay) -> Unit,
+    item: RelaySetupInfo,
+    onToggleDownload: (RelaySetupInfo) -> Unit,
+    onToggleUpload: (RelaySetupInfo) -> Unit,
 
-    onToggleFollows: (NewRelayListViewModel.Relay) -> Unit,
-    onTogglePrivateDMs: (NewRelayListViewModel.Relay) -> Unit,
-    onTogglePublicChats: (NewRelayListViewModel.Relay) -> Unit,
-    onToggleGlobal: (NewRelayListViewModel.Relay) -> Unit,
+    onToggleFollows: (RelaySetupInfo) -> Unit,
+    onTogglePrivateDMs: (RelaySetupInfo) -> Unit,
+    onTogglePublicChats: (RelaySetupInfo) -> Unit,
+    onToggleGlobal: (RelaySetupInfo) -> Unit,
 
-    onDelete: (NewRelayListViewModel.Relay) -> Unit) {
+    onDelete: (RelaySetupInfo) -> Unit) {
     Column(Modifier.fillMaxWidth()) {
         Row(
             verticalAlignment = Alignment.CenterVertically,
@@ -376,7 +363,7 @@ fun ServerConfig(
 }
 
 @Composable
-fun EditableServerConfig(relayToAdd: String, onNewRelay: (NewRelayListViewModel.Relay) -> Unit) {
+fun EditableServerConfig(relayToAdd: String, onNewRelay: (RelaySetupInfo) -> Unit) {
     var url by remember { mutableStateOf<String>(relayToAdd) }
     var read by remember { mutableStateOf(true) }
     var write by remember { mutableStateOf(true) }
@@ -422,9 +409,9 @@ fun EditableServerConfig(relayToAdd: String, onNewRelay: (NewRelayListViewModel.
         Button(
             onClick = {
                 if (url.isNotBlank() && url != "/") {
-                    var addedWSS = if (!url.startsWith("wss://")) "wss://$url" else url
+                    var addedWSS = if (!url.startsWith("wss://") && !url.startsWith("ws://")) "wss://$url" else url
                     if (url.endsWith("/")) addedWSS = addedWSS.dropLast(1)
-                    onNewRelay(NewRelayListViewModel.Relay(addedWSS, read, write, feedTypes = FeedType.values().toSet()))
+                    onNewRelay(RelaySetupInfo(addedWSS, read, write, feedTypes = FeedType.values().toSet()))
                     url = ""
                     write = true
                     read = true

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewRelayListViewModel.kt

@@ -1,32 +1,20 @@
 package com.vitorpamplona.amethyst.ui.actions
 
 import android.content.Context
-import androidx.compose.ui.platform.LocalContext
 import androidx.lifecycle.ViewModel
 import com.vitorpamplona.amethyst.LocalPreferences
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.service.relays.Constants
+import com.vitorpamplona.amethyst.model.RelaySetupInfo
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.RelayPool
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.update
-import nostr.postr.events.ContactListEvent
 
 class NewRelayListViewModel: ViewModel() {
     private lateinit var account: Account
 
-    data class Relay(
-        val url: String,
-        val read: Boolean,
-        val write: Boolean,
-        val errorCount: Int = 0,
-        val downloadCount: Int = 0,
-        val uploadCount: Int = 0,
-        val feedTypes: Set<FeedType>
-    )
-
-    private val _relays = MutableStateFlow<List<Relay>>(emptyList())
+    private val _relays = MutableStateFlow<List<RelaySetupInfo>>(emptyList())
     val relays = _relays.asStateFlow()
 
     fun load(account: Account, ctx: Context) {
@@ -56,7 +44,7 @@ class NewRelayListViewModel: ViewModel() {
                     val eventDownloadCounter = liveRelay?.eventDownloadCounter ?: 0
                     val eventUploadCounter = liveRelay?.eventUploadCounter ?: 0
 
-                    Relay(it.key, it.value.read, it.value.write, errorCounter, eventDownloadCounter, eventUploadCounter, localInfoFeedTypes)
+                    RelaySetupInfo(it.key, it.value.read, it.value.write, errorCounter, eventDownloadCounter, eventUploadCounter, localInfoFeedTypes)
                 }.sortedBy { it.downloadCount }.reversed()
             else
                 account.localRelays.map {
@@ -66,12 +54,12 @@ class NewRelayListViewModel: ViewModel() {
                     val eventDownloadCounter = liveRelay?.eventDownloadCounter ?: 0
                     val eventUploadCounter = liveRelay?.eventUploadCounter ?: 0
 
-                    Relay(it.url, it.read, it.write, errorCounter, eventDownloadCounter, eventUploadCounter, it.feedTypes)
+                    RelaySetupInfo(it.url, it.read, it.write, errorCounter, eventDownloadCounter, eventUploadCounter, it.feedTypes)
                 }.sortedBy { it.downloadCount }.reversed()
         }
     }
 
-    fun addRelay(relay: Relay) {
+    fun addRelay(relay: RelaySetupInfo) {
         if (relays.value.any { it.url == relay.url }) return
 
         _relays.update {
@@ -79,46 +67,46 @@ class NewRelayListViewModel: ViewModel() {
         }
     }
 
-    fun deleteRelay(relay: Relay) {
+    fun deleteRelay(relay: RelaySetupInfo) {
         _relays.update {
             it.minus(relay)
         }
     }
 
-    fun toggleDownload(relay: Relay) {
+    fun toggleDownload(relay: RelaySetupInfo) {
         _relays.update {
             it.updated(relay, relay.copy(read = !relay.read))
         }
     }
 
-    fun toggleUpload(relay: Relay) {
+    fun toggleUpload(relay: RelaySetupInfo) {
         _relays.update {
             it.updated(relay, relay.copy(write = !relay.write))
         }
     }
 
-    fun toggleFollows(relay: Relay) {
+    fun toggleFollows(relay: RelaySetupInfo) {
         val newTypes = togglePresenceInSet(relay.feedTypes, FeedType.FOLLOWS)
         _relays.update {
             it.updated(relay, relay.copy(feedTypes = newTypes))
         }
     }
 
-    fun toggleMessages(relay: Relay) {
+    fun toggleMessages(relay: RelaySetupInfo) {
         val newTypes = togglePresenceInSet(relay.feedTypes, FeedType.PRIVATE_DMS)
         _relays.update {
             it.updated(relay, relay.copy(feedTypes = newTypes))
         }
     }
 
-    fun togglePublicChats(relay: Relay) {
+    fun togglePublicChats(relay: RelaySetupInfo) {
         val newTypes = togglePresenceInSet(relay.feedTypes, FeedType.PUBLIC_CHATS)
         _relays.update {
             it.updated(relay, relay.copy(feedTypes = newTypes))
         }
     }
 
-    fun toggleGlobal(relay: Relay) {
+    fun toggleGlobal(relay: RelaySetupInfo) {
         val newTypes = togglePresenceInSet(relay.feedTypes, FeedType.GLOBAL)
         _relays.update {
             it.updated(relay, relay.copy( feedTypes = newTypes ))

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewUserMetadataView.kt

@@ -205,6 +205,22 @@ fun NewUserMetadataView(onClose: () -> Unit, account: Account) {
                     singleLine = true
                 )
 
+                Spacer(modifier = Modifier.height(10.dp))
+
+                OutlinedTextField(
+                    label = { Text(text = "LN URL (outdated)") },
+                    modifier = Modifier.fillMaxWidth(),
+                    value = postViewModel.lnURL.value,
+                    onValueChange = { postViewModel.lnURL.value = it },
+                    placeholder = {
+                        Text(
+                            text = "LNURL...",
+                            color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f)
+                        )
+                    },
+                    singleLine = true
+                )
+
             }
         }
     }

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewUserMetadataViewModel.kt

@@ -21,6 +21,7 @@ class NewUserMetadataViewModel: ViewModel() {
     val website = mutableStateOf("")
     val nip05 = mutableStateOf("")
     val lnAddress = mutableStateOf("")
+    val lnURL = mutableStateOf("")
 
     fun load(account: Account) {
         this.account = account
@@ -34,6 +35,7 @@ class NewUserMetadataViewModel: ViewModel() {
             website.value = it.info.website ?: ""
             nip05.value = it.info.nip05 ?: ""
             lnAddress.value = it.info.lud16 ?: ""
+            lnURL.value = it.info.lud06 ?: ""
         }
     }
 
@@ -57,6 +59,7 @@ class NewUserMetadataViewModel: ViewModel() {
         currentJson.put("about", about.value)
         currentJson.put("nip05", nip05.value)
         currentJson.put("lud16", lnAddress.value)
+        currentJson.put("lud06", lnURL.value)
 
         val writer = StringWriter()
         ObjectMapper().writeValue(writer, currentJson)
@@ -75,5 +78,6 @@ class NewUserMetadataViewModel: ViewModel() {
         website.value = ""
         nip05.value = ""
         lnAddress.value = ""
+        lnURL.value = ""
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/SaveToGallery.kt

@@ -0,0 +1,83 @@
+package com.vitorpamplona.amethyst.ui.actions
+
+import android.Manifest
+import android.os.Build
+import android.widget.Toast
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.dp
+import com.google.accompanist.permissions.ExperimentalPermissionsApi
+import com.google.accompanist.permissions.isGranted
+import com.google.accompanist.permissions.rememberPermissionState
+import kotlinx.coroutines.launch
+
+/**
+ * A button to save the remote image to the gallery.
+ * May require a storage permission.
+ *
+ * @param url URL of the image
+ */
+@OptIn(ExperimentalPermissionsApi::class)
+@Composable
+fun SaveToGallery(url: String) {
+    val localContext = LocalContext.current
+    val scope = rememberCoroutineScope()
+
+    fun saveImage() {
+        ImageSaver.saveImage(
+            context = localContext,
+            url = url,
+            onSuccess = {
+                scope.launch {
+                    Toast.makeText(
+                        localContext,
+                        "Image saved to the gallery",
+                        Toast.LENGTH_SHORT
+                    )
+                        .show()
+                }
+            },
+            onError = {
+                scope.launch {
+                    Toast.makeText(
+                        localContext,
+                        "Failed to save the image",
+                        Toast.LENGTH_SHORT
+                    )
+                        .show()
+                }
+            }
+        )
+    }
+
+    val writeStoragePermissionState = rememberPermissionState(
+        Manifest.permission.WRITE_EXTERNAL_STORAGE
+    ) { isGranted ->
+        if (isGranted) {
+            saveImage()
+        }
+    }
+
+    Button(
+        onClick = {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q || writeStoragePermissionState.status.isGranted) {
+                saveImage()
+            } else {
+                writeStoragePermissionState.launchPermissionRequest()
+            }
+        },
+        shape = RoundedCornerShape(20.dp),
+        colors = ButtonDefaults
+            .buttonColors(
+                backgroundColor = Color.Gray
+            )
+    ) {
+        Text(text = "Save", color = Color.White)
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/UploadFromGallery.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.navigation
 
 import android.net.Uri
+import android.os.Build
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.layout.Box
@@ -24,9 +25,14 @@ import com.google.accompanist.permissions.rememberPermissionState
 @OptIn(ExperimentalPermissionsApi::class)
 @Composable
 fun UploadFromGallery(onImageChosen: (Uri) -> Unit) {
-    val cameraPermissionState = rememberPermissionState(
-        android.Manifest.permission.READ_MEDIA_IMAGES
-    )
+    val cameraPermissionState =
+        rememberPermissionState(
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                android.Manifest.permission.READ_MEDIA_IMAGES
+            } else {
+                android.Manifest.permission.READ_EXTERNAL_STORAGE
+            }
+        )
 
     if (cameraPermissionState.status.isGranted) {
         var showGallerySelect by remember { mutableStateOf(false) }

app/src/main/java/com/vitorpamplona/amethyst/ui/components/InvoiceRequest.kt

@@ -68,7 +68,7 @@ fun InvoiceRequest(lud16: String, onClose: () -> Unit ) {
         )
 
         Text(
-          text = "Lightning Invoice",
+          text = "Lightning Tips",
           fontSize = 20.sp,
           fontWeight = FontWeight.W500,
           modifier = Modifier.padding(start = 10.dp)
@@ -101,7 +101,14 @@ fun InvoiceRequest(lud16: String, onClose: () -> Unit ) {
         label = { Text(text = "Amount in Sats") },
         modifier = Modifier.fillMaxWidth(),
         value = amount.toString(),
-        onValueChange = { amount = it.toLong() },
+        onValueChange = {
+          runCatching {
+            if (it.isEmpty())
+              amount = 0
+            else
+              amount = it.toLong()
+          }
+        },
         placeholder = {
           Text(
             text = "1000",
@@ -130,7 +137,7 @@ fun InvoiceRequest(lud16: String, onClose: () -> Unit ) {
           backgroundColor = MaterialTheme.colors.primary
         )
       ) {
-        Text(text = "Send", color = Color.White, fontSize = 20.sp)
+        Text(text = "Send Sats", color = Color.White, fontSize = 20.sp)
       }
     }
   }

app/src/main/java/com/vitorpamplona/amethyst/ui/components/ZoomableImageView.kt

@@ -2,35 +2,26 @@ package com.vitorpamplona.amethyst.ui.components
 
 import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.border
-import androidx.compose.foundation.clickable
 import androidx.compose.foundation.combinedClickable
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Surface
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalClipboardManager
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.window.Dialog
 import androidx.compose.ui.window.DialogProperties
 import coil.compose.AsyncImage
 import com.vitorpamplona.amethyst.ui.actions.CloseButton
-import nostr.postr.toNpub
+import com.vitorpamplona.amethyst.ui.actions.SaveToGallery
 
 @Composable
 @OptIn(ExperimentalComposeUiApi::class, ExperimentalFoundationApi::class)
@@ -75,6 +66,8 @@ fun ZoomableImageView(word: String) {
             CloseButton(onCancel = {
               dialogOpen = false
             })
+
+            SaveToGallery(url = word)
           }
 
           ZoomableAsyncImage(word)

app/src/main/java/com/vitorpamplona/amethyst/ui/navigation/AppTopBar.kt

@@ -1,7 +1,9 @@
 package com.vitorpamplona.amethyst.ui.navigation
 
 import android.util.Log
+import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
@@ -36,6 +38,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
@@ -72,6 +75,7 @@ fun AppTopBar(navController: NavHostController, scaffoldState: ScaffoldState, ac
     }
 }
 
+
 @Composable
 fun MainTopBar(scaffoldState: ScaffoldState, accountViewModel: AccountViewModel) {
     val accountState by accountViewModel.accountLiveData.observeAsState()
@@ -104,12 +108,13 @@ fun MainTopBar(scaffoldState: ScaffoldState, accountViewModel: AccountViewModel)
                     modifier = Modifier.fillMaxWidth(),
                     horizontalAlignment = Alignment.CenterHorizontally
                 ) {
-                    Box() {
+                    Box(Modifier) {
                         Column(
                             modifier = Modifier
-                                .fillMaxWidth()
+                                .fillMaxWidth().fillMaxHeight()
                                 .padding(start = 0.dp, end = 20.dp),
-                            horizontalAlignment = Alignment.CenterHorizontally
+                            horizontalAlignment = Alignment.CenterHorizontally,
+                            verticalArrangement = Arrangement.Center
                         ) {
                             IconButton(
                                 onClick = {

app/src/main/java/com/vitorpamplona/amethyst/ui/qrcode/ShowQRDialog.kt

@@ -62,46 +62,55 @@ fun ShowQRDialog(user: User, onScan: (String) -> Unit, onClose: () -> Unit) {
         }
 
         Column(
-          modifier = Modifier.fillMaxSize().padding(10.dp),
-          verticalArrangement = Arrangement.Center
+          modifier = Modifier.fillMaxSize().padding(horizontal = 10.dp),
+          verticalArrangement = Arrangement.SpaceBetween
         ) {
           if (presenting) {
-
-            Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
-              AsyncImage(
-                model = user.profilePicture() ?: "https://robohash.org/ohno.png",
-                contentDescription = "Profile Image",
-                placeholder = rememberAsyncImagePainter("https://robohash.org/${user.pubkeyHex}.png"),
-                modifier = Modifier
-                  .width(120.dp)
-                  .height(120.dp)
-                  .clip(shape = CircleShape)
-                  .border(3.dp, MaterialTheme.colors.background, CircleShape)
-                  .background(MaterialTheme.colors.background)
-              )
-            }
-            Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
-              Text(
-                user.bestDisplayName() ?: "",
-                modifier = Modifier.padding(top = 7.dp),
-                fontWeight = FontWeight.Bold,
-                fontSize = 18.sp
-              )
-            }
-            Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
-              Text(" @${user.bestUsername()}", color = Color.LightGray)
-            }
-
             Row(
               horizontalArrangement = Arrangement.Center,
-              modifier = Modifier.fillMaxWidth().padding(30.dp)
+              modifier = Modifier.fillMaxWidth().padding(horizontal = 30.dp, vertical = 10.dp)
             ) {
-              QrCodeDrawer("nostr:${user.pubkey.toNpub()}")
+
+            }
+
+            Column(modifier = Modifier.fillMaxWidth()) {
+              Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
+                AsyncImage(
+                  model = user.profilePicture() ?: "https://robohash.org/ohno.png",
+                  contentDescription = "Profile Image",
+                  placeholder = rememberAsyncImagePainter("https://robohash.org/${user.pubkeyHex}.png"),
+                  modifier = Modifier
+                    .width(100.dp)
+                    .height(100.dp)
+                    .clip(shape = CircleShape)
+                    .border(3.dp, MaterialTheme.colors.background, CircleShape)
+                    .background(MaterialTheme.colors.background)
+                )
+              }
+              Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
+                Text(
+                  user.bestDisplayName() ?: "",
+                  modifier = Modifier.padding(top = 7.dp),
+                  fontWeight = FontWeight.Bold,
+                  fontSize = 18.sp
+                )
+              }
+              Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
+                Text(" @${user.bestUsername()}", color = Color.LightGray)
+              }
+
+              Row(
+                horizontalArrangement = Arrangement.Center,
+                modifier = Modifier.fillMaxWidth().padding(horizontal = 35.dp, vertical = 10.dp)
+              ) {
+                QrCodeDrawer("nostr:${user.pubkey.toNpub()}")
+              }
+
             }
 
             Row(
               horizontalArrangement = Arrangement.Center,
-              modifier = Modifier.fillMaxWidth().padding(30.dp)
+              modifier = Modifier.fillMaxWidth().padding(horizontal = 30.dp, vertical = 10.dp)
             ) {
 
               Button(
@@ -121,6 +130,15 @@ fun ShowQRDialog(user: User, onScan: (String) -> Unit, onClose: () -> Unit) {
 
           } else {
 
+            Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
+              Text(
+                "Point to the QR Code",
+                modifier = Modifier.padding(top = 7.dp),
+                fontWeight = FontWeight.Bold,
+                fontSize = 25.sp
+              )
+            }
+
             Row(
               horizontalArrangement = Arrangement.Center,
               modifier = Modifier.fillMaxWidth().padding(30.dp)
@@ -128,18 +146,24 @@ fun ShowQRDialog(user: User, onScan: (String) -> Unit, onClose: () -> Unit) {
               QrCodeScanner(onScan)
             }
 
-            Button(
-              onClick = { presenting = true },
-              shape = RoundedCornerShape(35.dp),
-              modifier = Modifier
-                .fillMaxWidth().padding(30.dp)
-                .height(50.dp),
-              colors = ButtonDefaults
-                .buttonColors(
-                  backgroundColor = MaterialTheme.colors.primary
-                )
+            Row(
+              horizontalArrangement = Arrangement.Center,
+              modifier = Modifier.fillMaxWidth().padding(horizontal = 30.dp, vertical = 10.dp)
             ) {
-              Text(text = "Show QR")
+
+              Button(
+                onClick = { presenting = true },
+                shape = RoundedCornerShape(35.dp),
+                modifier = Modifier
+                  .fillMaxWidth()
+                  .height(50.dp),
+                colors = ButtonDefaults
+                  .buttonColors(
+                    backgroundColor = MaterialTheme.colors.primary
+                  )
+              ) {
+                Text(text = "Show QR")
+              }
             }
 
           }

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/ChannelScreen.kt

@@ -190,12 +190,12 @@ fun ChannelHeader(baseChannel: Channel, account: Account, accountStateViewModel:
                     channel?.let {
                         if (channel.creator == account.userProfile()) {
                             EditButton(account, it)
+                        }
+
+                        if (account.followingChannels.contains(channel.idHex)) {
+                            LeaveButton(account, channel, navController)
                         } else {
-                            if (account.followingChannels.contains(channel.idHex)) {
-                                LeaveButton(account, channel, navController)
-                            } else {
-                                JoinButton(account, channel, navController)
-                            }
+                            JoinButton(account, channel, navController)
                         }
                     }
                 }

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/ProfileScreen.kt

@@ -313,7 +313,6 @@ private fun DrawAdditionalInfo(baseUser: User) {
     val user = userState?.user ?: return
 
     val uri = LocalUriHandler.current
-    val context = LocalContext.current
 
     Text(
         user.bestDisplayName() ?: "",
@@ -339,7 +338,7 @@ private fun DrawAdditionalInfo(baseUser: User) {
 
             ClickableText(
                 text = AnnotatedString(website.removePrefix("https://")),
-                onClick = { user.info.website?.let { uri.openUri(it) } },
+                onClick = { user.info.website?.let { runCatching { uri.openUri(it) } } },
                 style = LocalTextStyle.current.copy(color = MaterialTheme.colors.primary),
                 modifier = Modifier.padding(top = 1.dp, bottom = 1.dp, start = 5.dp)
             )