feat: svg support (#138)

* wip: svg support

* define modular headers

* add examples, make loading async on Android

* fix: iOS scaling

* add: remote URL example

* docs: instruct users to use_frameworks!

Author: okwasniewski

android/build.gradle

@@ -25,6 +25,7 @@ def isNewArchitectureEnabled() {
 
 apply plugin: "com.android.library"
 apply plugin: "kotlin-android"
+apply plugin: "kotlin-kapt"
 
 if (isNewArchitectureEnabled()) {
   apply plugin: "com.facebook.react"
@@ -110,12 +111,18 @@ repositories {
 def kotlin_version = getExtOrDefault("kotlinVersion")
 
 dependencies {
+  def GLIDE_VERSION = "4.16.0"
   // For < 0.71, this will be from the local maven repo
   // For > 0.71, this will be replaced by `com.facebook.react:react-android:$version` by react gradle plugin
   //noinspection GradleDynamicVersion
   implementation "com.facebook.react:react-native:+"
   implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
   implementation 'com.google.android.material:material:1.13.0-alpha06'
+
+  api "com.github.bumptech.glide:glide:${GLIDE_VERSION}"
+  kapt "com.github.bumptech.glide:compiler:${GLIDE_VERSION}"
+
+  api 'com.caverock:androidsvg-aar:1.4'
 }
 
 if (isNewArchitectureEnabled()) {

android/src/main/java/com/rcttabview/RCTTabView.kt

@@ -1,12 +1,14 @@
 package com.rcttabview
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.content.res.ColorStateList
 import android.graphics.Typeface
 import android.graphics.drawable.BitmapDrawable
 import android.graphics.drawable.ColorDrawable
 import android.graphics.drawable.Drawable
 import android.os.Build
+import android.util.Log
 import android.util.TypedValue
 import android.view.Choreographer
 import android.view.HapticFeedbackConstants
@@ -15,11 +17,10 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
 import androidx.appcompat.content.res.AppCompatResources
-import com.facebook.common.references.CloseableReference
-import com.facebook.datasource.DataSources
-import com.facebook.drawee.backends.pipeline.Fresco
-import com.facebook.imagepipeline.image.CloseableBitmap
-import com.facebook.imagepipeline.request.ImageRequestBuilder
+import com.bumptech.glide.load.DataSource
+import com.bumptech.glide.load.engine.GlideException
+import com.bumptech.glide.request.RequestListener
+import com.bumptech.glide.request.target.Target
 import com.facebook.react.bridge.Arguments
 import com.facebook.react.bridge.ReadableArray
 import com.facebook.react.bridge.WritableMap
@@ -69,6 +70,7 @@ class ReactBottomNavigationView(context: Context) : BottomNavigationView(context
   override fun requestLayout() {
     super.requestLayout()
     @Suppress("SENSELESS_COMPARISON") // layoutCallback can be null here since this method can be called in init
+
     if (!isLayoutEnqueued && layoutCallback != null) {
       isLayoutEnqueued = true
       // we use NATIVE_ANIMATED_MODULE choreographer queue because it allows us to catch the current
@@ -102,7 +104,9 @@ class ReactBottomNavigationView(context: Context) : BottomNavigationView(context
       val menuItem = getOrCreateItem(index, item.title)
       menuItem.isVisible = !item.hidden
       if (icons.containsKey(index)) {
-        menuItem.icon = getDrawable(icons[index]!!)
+        getDrawable(icons[index]!!)  {
+          menuItem.icon = it
+        }
       }
 
       if (item.badge.isNotEmpty()) {
@@ -150,7 +154,9 @@ class ReactBottomNavigationView(context: Context) : BottomNavigationView(context
 
       // Update existing item if exists.
       menu.findItem(idx)?.let { menuItem ->
-        menuItem.icon = getDrawable(imageSource)
+        getDrawable(imageSource)  {
+          menuItem.icon = it
+        }
       }
     }
   }
@@ -169,22 +175,35 @@ class ReactBottomNavigationView(context: Context) : BottomNavigationView(context
     itemRippleColor = color
   }
 
-  private fun getDrawable(imageSource: ImageSource): Drawable? {
-    try {
-      val imageRequest = ImageRequestBuilder.newBuilderWithSource(imageSource.uri).build()
-      val dataSource = Fresco.getImagePipeline().fetchDecodedImage(imageRequest, context)
-      val result = DataSources.waitForFinalResult(dataSource) as CloseableReference<CloseableBitmap>
-      val bitmap = result.get().underlyingBitmap
-
-      CloseableReference.closeSafely(result)
-      dataSource.close()
-
-      return BitmapDrawable(resources, bitmap)
-    } catch (_: Exception) {
-      // Asset doesn't exist
-    }
+  @SuppressLint("CheckResult")
+  private fun getDrawable(imageSource: ImageSource, onDrawableReady: (Drawable?) -> Unit) {
+    GlideApp.with(context)
+      .`as`(Drawable::class.java)
+      .load(imageSource.uri)
+      .listener(object : RequestListener<Drawable> {
+        override fun onLoadFailed(
+          e: GlideException?,
+          model: Any?,
+          target: Target<Drawable>,
+          isFirstResource: Boolean
+        ): Boolean {
+          Log.e("RCTTabView", "Error loading image: ${imageSource.uri}", e)
+          return false
+        }
 
-    return null
+        override fun onResourceReady(
+          resource: Drawable,
+          model: Any,
+          target: Target<Drawable>?,
+          dataSource: DataSource,
+          isFirstResource: Boolean
+        ): Boolean {
+          // Update images on the main queue.
+          post { onDrawableReady(resource) }
+          return true
+        }
+      })
+      .submit()
   }
 
   override fun onDetachedFromWindow() {

android/src/main/java/com/rcttabview/TabViewAppGlideModule.kt

@@ -0,0 +1,18 @@
+package com.rcttabview
+
+import android.content.Context
+import android.util.Log
+import com.bumptech.glide.GlideBuilder
+import com.bumptech.glide.annotation.GlideModule
+import com.bumptech.glide.module.AppGlideModule
+
+@GlideModule
+class TabViewAppGlideModule : AppGlideModule() {
+  override fun applyOptions(context: Context, builder: GlideBuilder) {
+    super.applyOptions(context, builder)
+
+    builder.setLogLevel(
+        Log.ERROR
+    )
+  }
+}

android/src/main/java/com/rcttabview/svg/SVGDecoder.kt

@@ -0,0 +1,40 @@
+package com.rcttabview.svg
+
+import com.bumptech.glide.load.Options
+import com.bumptech.glide.load.ResourceDecoder
+import com.bumptech.glide.load.engine.Resource
+import com.bumptech.glide.load.resource.SimpleResource
+import com.caverock.androidsvg.SVG
+import com.caverock.androidsvg.SVGParseException
+import java.io.IOException
+import java.io.InputStream
+
+
+class SVGDecoder : ResourceDecoder<InputStream, SVG> {
+  override fun handles(source: InputStream, options: Options) = true
+
+  companion object {
+    const val DEFAULT_SIZE = 40f
+  }
+
+  @Throws(IOException::class)
+  override fun decode(source: InputStream, width: Int, height: Int, options: Options): Resource<SVG>? {
+    return try {
+      val svg: SVG = SVG.getFromInputStream(source)
+      // Taken from https://github.com/expo/expo/blob/215d8a13a7ef3f0b36b14eead41291e2d2d6cd0c/packages/expo-image/android/src/main/java/expo/modules/image/svg/SVGDecoder.kt#L28
+      if (svg.documentViewBox == null) {
+        val documentWidth = svg.documentWidth
+        val documentHeight = svg.documentHeight
+        if (documentWidth != -1f && documentHeight != -1f) {
+          svg.setDocumentViewBox(0f, 0f, documentWidth, documentHeight)
+        }
+      }
+
+      svg.documentWidth = DEFAULT_SIZE
+      svg.documentHeight = DEFAULT_SIZE
+      SimpleResource(svg)
+    } catch (ex: SVGParseException) {
+      throw IOException("Cannot load SVG from stream", ex)
+    }
+  }
+}

android/src/main/java/com/rcttabview/svg/SVGDrawableTranscoder.kt

@@ -0,0 +1,32 @@
+package com.rcttabview.svg
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Canvas
+import android.graphics.drawable.BitmapDrawable
+import android.graphics.drawable.Drawable
+import android.graphics.drawable.PictureDrawable
+import com.bumptech.glide.load.Options
+import com.bumptech.glide.load.engine.Resource
+import com.bumptech.glide.load.resource.SimpleResource
+import com.bumptech.glide.load.resource.transcode.ResourceTranscoder
+import com.caverock.androidsvg.SVG
+
+class SVGDrawableTranscoder(val context: Context) : ResourceTranscoder<SVG?, Drawable> {
+  override fun transcode(toTranscode: Resource<SVG?>, options: Options): Resource<Drawable> {
+    val svg = toTranscode.get()
+    val picture = svg.renderToPicture()
+    val drawable = PictureDrawable(picture)
+
+    val returnedBitmap = Bitmap.createBitmap(
+      drawable.intrinsicWidth,
+      drawable.intrinsicHeight,
+      Bitmap.Config.ARGB_8888
+    )
+
+    val canvas = Canvas(returnedBitmap)
+    canvas.drawPicture(drawable.picture)
+    val bitMapDrawable = BitmapDrawable(context.resources, returnedBitmap)
+    return SimpleResource(bitMapDrawable)
+  }
+}

android/src/main/java/com/rcttabview/svg/TabViewGlideModule.kt

@@ -0,0 +1,25 @@
+package com.rcttabview.svg
+
+import android.content.Context
+import android.graphics.drawable.Drawable
+import com.bumptech.glide.Glide
+import com.bumptech.glide.Registry
+import com.bumptech.glide.annotation.GlideModule
+import com.bumptech.glide.module.LibraryGlideModule
+import com.caverock.androidsvg.SVG
+import java.io.InputStream
+
+
+@GlideModule
+class SvgModule: LibraryGlideModule() {
+  override fun registerComponents(
+    context: Context, glide: Glide, registry: Registry
+  ) {
+    registry
+      .register(
+        SVG::class.java,
+        Drawable::class.java, SVGDrawableTranscoder(context)
+      )
+      .append(InputStream::class.java, SVG::class.java, SVGDecoder())
+  }
+}

docs/docs/docs/getting-started/quick-start.mdx

@@ -41,7 +41,8 @@ import { PackageManagerTabs } from '@theme';
 
 ### Expo
 
-Add the library plugin in your `app.json` config file and [create a new build](https://docs.expo.dev/develop/development-builds/create-a-build/):
+Add the library plugin in your `app.json` config file and [create a new build](https://docs.expo.dev/develop/development-builds/create-a-build/).
+
 
 ```diff
   "expo": {
@@ -50,6 +51,27 @@ Add the library plugin in your `app.json` config file and [create a new build](h
 }
 ```
 
+You also need to enable static linking for iOS by adding `"useFrameworks": "static"` in the `expo-build-properties` plugin.
+
+```diff
+{
+  "expo": {
+    "plugins": [
+       "react-native-bottom-tabs",
++      [
++        "expo-build-properties",
++        {
++          "ios": {
++            "useFrameworks": "static"
++          }
++        }
++      ]
++    ]
+  }
+}
+```
+
+
 :::warning
 
 This library is not supported in [Expo Go](https://expo.dev/go).
@@ -72,6 +94,12 @@ Edit `android/app/src/main/res/values/styles.xml` to inherit from provided theme
 
 Here you can read more about [Android Native Styling](/docs/guides/android-native-styling).
 
+To enable static linking for iOS, Open the `./ios/Podfile` file and add the following:
+
+```ruby
+use_frameworks!, :linkage => :static
+```
+
 
 ## Example usage
 

docs/docs/docs/guides/usage-with-react-navigation.mdx

@@ -189,8 +189,12 @@ Function that given `{ focused: boolean }` returns `ImageSource` or `AppleIcon`
   component={Albums}
   options={{
     tabBarIcon: () => require('person.png'),
+    // SVG is also supported
+    tabBarIcon: () => require('person.svg'),
     // or
     tabBarIcon: () => ({ sfSymbol: 'person' }),
+    // You can also pass a URL
+    tabBarIcon: () => ({ uri: 'https://example.com/icon.png' }),
   }}
 />
 ```