fix: Don't exceed the maximum number of created shortcuts (#771)

Previous code created one shortcut per account, which could exceed the
maximum number of shortcuts allowed, causing a crash.

Fix this by creating no more than the max number of shortcuts while
ensuring that the active account is always included.

Fixes #752

app/lint-baseline.xml

@@ -2625,8 +2625,8 @@
     <issue
         id="ReportShortcutUsage"
         message="Calling this method indicates use of dynamic shortcuts, but there are no calls to methods that track shortcut usage, such as `pushDynamicShortcut` or `reportShortcutUsed`. Calling these methods is recommended, as they track shortcut usage and allow launchers to adjust which shortcuts appear based on activation history. Please see https://developer.android.com/develop/ui/views/launch/shortcuts/managing-shortcuts#track-usage"
-        errorLine1="    ShortcutManagerCompat.addDynamicShortcuts(context, listOf(shortcutInfo))"
+        errorLine1="    ShortcutManagerCompat.setDynamicShortcuts(context, shortcuts)"
-        errorLine2="    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        errorLine2="    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
         <location
             file="src/main/java/app/pachli/util/ShareShortcutHelper.kt"
             line="96"

app/src/main/java/app/pachli/MainActivity.kt

@@ -120,7 +120,7 @@ import app.pachli.updatecheck.UpdateCheck
 import app.pachli.usecase.DeveloperToolsUseCase
 import app.pachli.usecase.LogoutUsecase
 import app.pachli.util.getDimension
-import app.pachli.util.updateShortcut
+import app.pachli.util.updateShortcuts
 import at.connyduck.calladapter.networkresult.fold
 import com.bumptech.glide.Glide
 import com.bumptech.glide.RequestManager
@@ -1085,7 +1085,7 @@ class MainActivity : BottomSheetActivity(), ActionButtonActivity, MenuProvider {
         updateProfiles()
 
         externalScope.launch {
-            updateShortcut(applicationContext, accountManager.activeAccount!!)
+            updateShortcuts(applicationContext, accountManager)
         }
     }
 

app/src/main/java/app/pachli/util/ShareShortcutHelper.kt

@@ -21,10 +21,12 @@ import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.Canvas
 import android.text.TextUtils
+import androidx.appcompat.content.res.AppCompatResources
 import androidx.core.app.Person
 import androidx.core.content.pm.ShortcutInfoCompat
 import androidx.core.content.pm.ShortcutManagerCompat
 import androidx.core.graphics.drawable.IconCompat
+import app.pachli.core.accounts.AccountManager
 import app.pachli.core.database.model.AccountEntity
 import app.pachli.core.designsystem.R as DR
 import app.pachli.core.navigation.MainActivityIntent
@@ -33,20 +35,19 @@ import java.util.concurrent.ExecutionException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
-suspend fun updateShortcut(context: Context, account: AccountEntity) = withContext(Dispatchers.IO) {
+suspend fun updateShortcuts(context: Context, accountManager: AccountManager) = withContext(Dispatchers.IO) {
     val innerSize = context.resources.getDimensionPixelSize(DR.dimen.adaptive_bitmap_inner_size)
     val outerSize = context.resources.getDimensionPixelSize(DR.dimen.adaptive_bitmap_outer_size)
 
-    val bmp = try {
+    val maxShortcuts = ShortcutManagerCompat.getMaxShortcutCountPerActivity(context)
+
+    val shortcuts = accountManager.getAllAccountsOrderedByActive().take(maxShortcuts).mapNotNull { account ->
+        val drawable = try {
             if (TextUtils.isEmpty(account.profilePictureUrl)) {
-            Glide.with(context)
+                AppCompatResources.getDrawable(context, DR.drawable.avatar_default)
-                .asBitmap()
-                .load(DR.drawable.avatar_default)
-                .submit(innerSize, innerSize)
-                .get()
             } else {
                 Glide.with(context)
-                .asBitmap()
+                    .asDrawable()
                     .load(account.profilePictureUrl)
                     .error(DR.drawable.avatar_default)
                     .submit(innerSize, innerSize)
@@ -56,18 +57,16 @@ suspend fun updateShortcut(context: Context, account: AccountEntity) = withConte
             // The `.error` handler isn't always used. For example, Glide throws
             // ExecutionException if the URL does not point at an image. Fallback to
             // the default avatar (https://github.com/bumptech/glide/issues/4672).
-        Glide.with(context)
+            AppCompatResources.getDrawable(context, DR.drawable.avatar_default)
-            .asBitmap()
+        } ?: return@mapNotNull null
-            .load(DR.drawable.avatar_default)
-            .submit(innerSize, innerSize)
-            .get()
-    }
 
         // inset the loaded bitmap inside a 108dp transparent canvas so it looks good as adaptive icon
         val outBmp = Bitmap.createBitmap(outerSize, outerSize, Bitmap.Config.ARGB_8888)
 
         val canvas = Canvas(outBmp)
-    canvas.drawBitmap(bmp, (outerSize - innerSize).toFloat() / 2f, (outerSize - innerSize).toFloat() / 2f, null)
+        val border = (outerSize - innerSize) / 2
+        drawable.setBounds(border, border, border + innerSize, border + innerSize)
+        drawable.draw(canvas)
 
         val icon = IconCompat.createWithAdaptiveBitmap(outBmp)
 
@@ -84,7 +83,7 @@ suspend fun updateShortcut(context: Context, account: AccountEntity) = withConte
             putExtra(ShortcutManagerCompat.EXTRA_SHORTCUT_ID, account.id.toString())
         }
 
-    val shortcutInfo = ShortcutInfoCompat.Builder(context, account.id.toString())
+        ShortcutInfoCompat.Builder(context, account.id.toString())
             .setIntent(intent)
             .setCategories(setOf("app.pachli.Share"))
             .setShortLabel(account.displayName)
@@ -92,8 +91,9 @@ suspend fun updateShortcut(context: Context, account: AccountEntity) = withConte
             .setLongLived(true)
             .setIcon(icon)
             .build()
+    }
 
-    ShortcutManagerCompat.addDynamicShortcuts(context, listOf(shortcutInfo))
+    ShortcutManagerCompat.setDynamicShortcuts(context, shortcuts)
 }
 
 fun removeShortcut(context: Context, account: AccountEntity) {