chore：引入url_launcher

Plugin project :url_launcher_web not found. Please update settings.gradle. fix： flutter/flutter#55077

android/settings.gradle

@@ -13,3 +13,19 @@ localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
 def flutterSdkPath = properties.getProperty("flutter.sdk")
 assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
 apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
+
+// https://github.com/flutter/flutter/issues/55077#issuecomment-628366487
+// fix : Plugin project :url_launcher_web not found. Please update settings.gradle.
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
+
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}

pubspec.yaml

@@ -33,6 +33,7 @@ dependencies:
   image_picker: ^0.6.7+2
   json_serializable: ^3.3.0
   cached_network_image: ^2.2.0+1
+  url_launcher: ^5.4.11
 
 
   # The following adds the Cupertino Icons font to your application.