mirror of https://github.com/flutter/samples.git
Added sample code for multiple flutters on iOS (#670)
gaaclarke
5 years ago
committed by
GitHub
parent
241e2c1b26
commit
2825131b34
@ -0,0 +1,80 @@
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# multiple_flutters
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This is a sample that shows how to use the Flutter Engine Groups API to embed
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multiple instances of Flutter into an existing Android or iOS project.
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## Getting Started
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For iOS instructions, see:
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[multiple_flutters_ios](./multiple_flutters_ios/README.md).
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For Android instructions, see:
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[multiple_flutters_android](./multiple_flutters_android/README.md).
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## Requirements
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* Flutter -- after version 1991216543eb74e07c2de3746ca07c92071b19ac
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* Android
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* Android Studio
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* iOS
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* Xcode
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* Cocoapods
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## Flutter Engine Group
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These examples use the Flutter Engine Group APIs on the host platform which
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allows engines to share memory and CPU intensive resources. This leads to easier
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embedding of Flutter into an existing app since multiple entrypoints can be
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maintained via a FlutterFragment on Android or a UIViewController on iOS.
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Before FlutterEngineGroup, users had to juggle the usage of a small number of
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engines judiciously.
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More info on those API's can be found in the source
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code:
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- iOS -
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[FlutterEngineGroup.h](https://github.com/flutter/engine/blob/master/shell/platform/darwin/ios/framework/Headers/FlutterEngineGroup.h)
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- Android -
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[FlutterEngineGroup.java](https://github.com/flutter/engine/blob/master/shell/platform/android/io/flutter/embedding/engine/FlutterEngineGroup.java)
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## Important Files
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### iOS
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- [DataModel.swift](./multiple_flutters_ios/MultipleFluttersIos/HostViewController.swift)
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— Observable data model that is the source of truth for the host platform and Flutter.
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- [HostViewController.swift](./multiple_flutters_ios/MultipleFluttersIos/HostViewController.swift)
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— A UIViewController that synchronizes to the DataModel.
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- [main.dart](./multiple_flutters_module/lib/main.dart) — The Flutter source
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code.
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- [SingleFlutterViewController.swift](./multiple_flutters_ios/MultipleFluttersIos/SingleFlutterViewController.swift)
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— A subclass of FlutterViewController that synchronizes with the DataModel.
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- [DoubleFlutterViewController.swift](./multiple_flutters_ios/MultipleFluttersIos/DoubleFlutterViewController.swift)
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— A UIViewController that embeds multiple Flutter instances.
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### Android
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## Data Synchronization Description
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This sample code performs data synchronization to share data between the host
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platform and multiple instances of Flutter by combining the
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[Observer design pattern](https://en.wikipedia.org/wiki/Observer_pattern) and
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[Flutter platform channels](https://flutter.dev/docs/development/platform-integration/platform-channels).
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Here is how it works:
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- The definitive source of truth for the data lives in the host platform data
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model.
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- Every host view displaying Flutter content maintains: a Flutter engine, a
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bidirectional platform channel, and a subscription to the host data model.
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- Flutter instances maintain a copy of the data they are interested in reading,
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and this data is seeded by the host when the instance is first displayed.
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- Mutations from Flutter code are sent to the host platform via the channel. The
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host platform performs the mutations, and then notifies all host view
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controllers and Flutter engines of the new value.
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- Mutations from host code happen directly on the data model who notifies host
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view controllers and Flutter engines of the new value.
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This is just one possible way to synchronize the data between the host platform
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and multiple Flutter instances. A more complete implementation is proposed in
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the work of
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[flutter/issues/72030](https://github.com/flutter/flutter/issues/72030).
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@ -0,0 +1,6 @@
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MultipleFluttersIos.xcworkspace/xcuserdata
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MultipleFluttersIos.xcodeproj/project.xcworkspace/xcuserdata
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Pods/Pods.xcodeproj/xcuserdata
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MultipleFluttersIos.xcodeproj/xcuserdata
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Pods/
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MultipleFluttersIos.xcodeproj/xcshareddata/
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@ -0,0 +1,457 @@
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// !$*UTF8*$!
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||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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||||
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// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import Flutter
|
||||
import UIKit
|
||||
|
||||
/// The app's UIApplicationDelegate.
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||||
@main
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class AppDelegate: UIResponder, UIApplicationDelegate {
|
||||
let engines = FlutterEngineGroup(name: "multiple-flutters", project: nil)
|
||||
|
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func application(
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didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
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|
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#endif
|
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if isDebug {
|
||||
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|
||||
)
|
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} else {
|
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||||
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|
||||
)
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||||
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||||
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|
||||
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|
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|
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return UISceneConfiguration(
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|
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}
|
||||
|
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func application(
|
||||
_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>
|
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) {
|
||||
}
|
||||
}
|
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{
|
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|
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}
|
||||
],
|
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||||
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}
|
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}
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{
|
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|
||||
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|
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|
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|
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},
|
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{
|
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|
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},
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{
|
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{
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},
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{
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|
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},
|
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{
|
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|
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|
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},
|
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{
|
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},
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{
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|
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},
|
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{
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|
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},
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{
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{
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},
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{
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|
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},
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{
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|
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},
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{
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|
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|
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|
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}
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"version" : 1
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@ -0,0 +1,6 @@
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{
|
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"info" : {
|
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"version" : 1
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|
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<dependencies>
|
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
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<capability name="Safe area layout guides" minToolsVersion="9.0"/>
|
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|
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|
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<scenes>
|
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<!--View Controller-->
|
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<scene sceneID="EHf-IW-A2E">
|
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<objects>
|
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|
||||
<point key="canvasLocation" x="53" y="375"/>
|
||||
</scene>
|
||||
</scenes>
|
||||
</document>
|
||||
@ -0,0 +1,116 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="17506" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="zV5-X7-f4o">
|
||||
<device id="retina6_1" orientation="portrait" appearance="light"/>
|
||||
<dependencies>
|
||||
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="17505"/>
|
||||
<capability name="Safe area layout guides" minToolsVersion="9.0"/>
|
||||
<capability name="System colors in document resources" minToolsVersion="11.0"/>
|
||||
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
|
||||
</dependencies>
|
||||
<scenes>
|
||||
<!--Navigation Controller-->
|
||||
<scene sceneID="iJJ-8n-QPC">
|
||||
<objects>
|
||||
<navigationController id="zV5-X7-f4o" sceneMemberID="viewController">
|
||||
<navigationBar key="navigationBar" contentMode="scaleToFill" id="NiM-Jj-k9k">
|
||||
<rect key="frame" x="0.0" y="44" width="414" height="44"/>
|
||||
<autoresizingMask key="autoresizingMask"/>
|
||||
</navigationBar>
|
||||
<connections>
|
||||
<segue destination="BYZ-38-t0r" kind="relationship" relationship="rootViewController" id="PBq-fn-vqE"/>
|
||||
</connections>
|
||||
</navigationController>
|
||||
<placeholder placeholderIdentifier="IBFirstResponder" id="22r-TG-MDZ" userLabel="First Responder" customClass="UIResponder" sceneMemberID="firstResponder"/>
|
||||
</objects>
|
||||
<point key="canvasLocation" x="-1555" y="-191"/>
|
||||
</scene>
|
||||
<!--Host View Controller-->
|
||||
<scene sceneID="tne-QT-ifu">
|
||||
<objects>
|
||||
<viewController storyboardIdentifier="NativeViewCount" id="BYZ-38-t0r" customClass="HostViewController" customModule="MultipleFluttersIos" customModuleProvider="target" sceneMemberID="viewController">
|
||||
<view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
|
||||
<rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
|
||||
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
|
||||
<subviews>
|
||||
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Count:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="CgZ-JE-gda">
|
||||
<rect key="frame" x="20" y="437.5" width="51" height="21"/>
|
||||
<fontDescription key="fontDescription" type="system" pointSize="17"/>
|
||||
<nil key="textColor"/>
|
||||
<nil key="highlightedColor"/>
|
||||
</label>
|
||||
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="1234" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="dKf-iz-CSn">
|
||||
<rect key="frame" x="79" y="437.5" width="39" height="21"/>
|
||||
<constraints>
|
||||
<constraint firstAttribute="width" constant="39" id="Aw7-RN-dwx"/>
|
||||
</constraints>
|
||||
<fontDescription key="fontDescription" type="system" pointSize="17"/>
|
||||
<nil key="textColor"/>
|
||||
<nil key="highlightedColor"/>
|
||||
</label>
|
||||
<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="vVY-o2-UDW">
|
||||
<rect key="frame" x="350" y="818" width="44" height="44"/>
|
||||
<constraints>
|
||||
<constraint firstAttribute="height" constant="44" id="h7j-l3-taD"/>
|
||||
<constraint firstAttribute="width" constant="44" id="sQd-lU-0zD"/>
|
||||
</constraints>
|
||||
<state key="normal" title="Next"/>
|
||||
<connections>
|
||||
<action selector="onNext" destination="BYZ-38-t0r" eventType="touchUpInside" id="XN9-kg-pAi"/>
|
||||
</connections>
|
||||
</button>
|
||||
<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Ohd-Fe-iAE">
|
||||
<rect key="frame" x="350" y="772" width="44" height="44"/>
|
||||
<constraints>
|
||||
<constraint firstAttribute="height" constant="44" id="8Nc-hA-ZbV"/>
|
||||
<constraint firstAttribute="width" constant="44" id="P0Q-km-hJ3"/>
|
||||
</constraints>
|
||||
<state key="normal" title="Add"/>
|
||||
<connections>
|
||||
<action selector="onAddCount" destination="BYZ-38-t0r" eventType="touchUpInside" id="QYB-J4-vI2"/>
|
||||
</connections>
|
||||
</button>
|
||||
</subviews>
|
||||
<viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
|
||||
<color key="backgroundColor" systemColor="systemBackgroundColor"/>
|
||||
<constraints>
|
||||
<constraint firstItem="CgZ-JE-gda" firstAttribute="centerY" secondItem="8bC-Xf-vdC" secondAttribute="centerY" id="1Dz-Aq-10E"/>
|
||||
<constraint firstItem="vVY-o2-UDW" firstAttribute="top" secondItem="Ohd-Fe-iAE" secondAttribute="bottom" constant="2" id="EqG-G1-3gr"/>
|
||||
<constraint firstItem="vVY-o2-UDW" firstAttribute="bottom" secondItem="6Tk-OE-BBY" secondAttribute="bottom" id="IDv-xt-QVd"/>
|
||||
<constraint firstItem="6Tk-OE-BBY" firstAttribute="trailing" secondItem="vVY-o2-UDW" secondAttribute="trailing" constant="20" id="IQ1-E7-q9T"/>
|
||||
<constraint firstItem="dKf-iz-CSn" firstAttribute="leading" secondItem="CgZ-JE-gda" secondAttribute="trailing" constant="8" symbolic="YES" id="ZKK-wt-eqr"/>
|
||||
<constraint firstItem="dKf-iz-CSn" firstAttribute="centerY" secondItem="8bC-Xf-vdC" secondAttribute="centerY" id="hUq-Je-pdK"/>
|
||||
<constraint firstItem="6Tk-OE-BBY" firstAttribute="trailing" secondItem="Ohd-Fe-iAE" secondAttribute="trailing" constant="20" id="wT9-j5-NMO"/>
|
||||
<constraint firstItem="CgZ-JE-gda" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" constant="20" id="ybv-NA-2by"/>
|
||||
</constraints>
|
||||
</view>
|
||||
<navigationItem key="navigationItem" id="NPA-Os-dNw"/>
|
||||
<connections>
|
||||
<outlet property="countView" destination="dKf-iz-CSn" id="9dM-Hg-UMg"/>
|
||||
</connections>
|
||||
</viewController>
|
||||
<placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
|
||||
</objects>
|
||||
<point key="canvasLocation" x="-722" y="-192"/>
|
||||
</scene>
|
||||
<!--View Controller-->
|
||||
<scene sceneID="e8d-wy-DfZ">
|
||||
<objects>
|
||||
<viewController id="EXG-G5-awH" sceneMemberID="viewController">
|
||||
<view key="view" contentMode="scaleToFill" id="3av-sG-Ibb">
|
||||
<rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
|
||||
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
|
||||
<viewLayoutGuide key="safeArea" id="R4s-uY-wnW"/>
|
||||
<color key="backgroundColor" systemColor="systemBackgroundColor"/>
|
||||
</view>
|
||||
</viewController>
|
||||
<placeholder placeholderIdentifier="IBFirstResponder" id="xYB-oQ-Y1A" userLabel="First Responder" customClass="UIResponder" sceneMemberID="firstResponder"/>
|
||||
</objects>
|
||||
<point key="canvasLocation" x="4" y="-192"/>
|
||||
</scene>
|
||||
</scenes>
|
||||
<resources>
|
||||
<systemColor name="systemBackgroundColor">
|
||||
<color white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
|
||||
</systemColor>
|
||||
</resources>
|
||||
</document>
|
||||
@ -0,0 +1,56 @@
|
||||
// Copyright 2021 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import Foundation
|
||||
|
||||
/// A protocol that receives updates when the datamodel is changed.
|
||||
protocol DataModelObserver: AnyObject {
|
||||
func onCountUpdate(newCount: Int64)
|
||||
}
|
||||
|
||||
/// A wrapper object around a weak reference to an object that implements DataModelObserver.
|
||||
///
|
||||
/// This is required since you can't directly hold weak references to protocols in data structures.
|
||||
private struct DataModelObserverWrapper {
|
||||
weak var wrapped: DataModelObserver?
|
||||
|
||||
init(_ wrapped: DataModelObserver) {
|
||||
self.wrapped = wrapped
|
||||
}
|
||||
}
|
||||
|
||||
/// A singleton data model that is observable.
|
||||
class DataModel {
|
||||
private var _count: Int64 = 0
|
||||
var count: Int64 {
|
||||
get {
|
||||
return self._count
|
||||
}
|
||||
set {
|
||||
self._count = newValue
|
||||
for observer in observers {
|
||||
if let wrapped = observer.wrapped {
|
||||
wrapped.onCountUpdate(newCount: self._count)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
private var observers: [DataModelObserverWrapper] = []
|
||||
static let shared = DataModel()
|
||||
|
||||
func addObserver(observer: DataModelObserver) {
|
||||
observers.append(DataModelObserverWrapper(observer))
|
||||
}
|
||||
|
||||
func removeObserver(observer: DataModelObserver) {
|
||||
observers.removeAll { (element: DataModelObserverWrapper) -> Bool in
|
||||
if let wrapped = element.wrapped {
|
||||
return wrapped === observer
|
||||
} else {
|
||||
// Handle observers who dealloc'd without removing themselves.
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,29 @@
|
||||
// Copyright 2021 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import UIKit
|
||||
|
||||
/// A UIViewController that hosts two instances of SingleFlutterViewController, splitting the screen
|
||||
/// between them.
|
||||
class DoubleFlutterViewController: UIViewController {
|
||||
private let topFlutter: SingleFlutterViewController = SingleFlutterViewController(
|
||||
withEntrypoint: "topMain")
|
||||
private let bottomFlutter: SingleFlutterViewController = SingleFlutterViewController(
|
||||
withEntrypoint: "bottomMain")
|
||||
|
||||
override func viewDidLoad() {
|
||||
addChild(topFlutter)
|
||||
addChild(bottomFlutter)
|
||||
let safeFrame = self.view.safeAreaLayoutGuide.layoutFrame
|
||||
let halfHeight = safeFrame.height / 2.0
|
||||
topFlutter.view.frame = CGRect(
|
||||
x: safeFrame.minX, y: safeFrame.minY, width: safeFrame.width, height: halfHeight)
|
||||
bottomFlutter.view.frame = CGRect(
|
||||
x: safeFrame.minX, y: topFlutter.view.frame.maxY, width: safeFrame.width, height: halfHeight)
|
||||
self.view.addSubview(topFlutter.view)
|
||||
self.view.addSubview(bottomFlutter.view)
|
||||
topFlutter.didMove(toParent: self)
|
||||
bottomFlutter.didMove(toParent: self)
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,43 @@
|
||||
// Copyright 2021 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import Flutter
|
||||
import UIKit
|
||||
|
||||
/// UIViewController associated with the NativeViewCount storyboard scene.
|
||||
class HostViewController: UIViewController, DataModelObserver {
|
||||
@IBOutlet weak var countView: UILabel!
|
||||
|
||||
deinit {
|
||||
DataModel.shared.removeObserver(observer: self)
|
||||
}
|
||||
|
||||
func onCountUpdate(newCount: Int64) {
|
||||
self.countView.text = String(format: "%d", newCount)
|
||||
}
|
||||
|
||||
override func viewDidLoad() {
|
||||
super.viewDidLoad()
|
||||
DataModel.shared.addObserver(observer: self)
|
||||
onCountUpdate(newCount: DataModel.shared.count)
|
||||
}
|
||||
|
||||
@IBAction func onAddCount() {
|
||||
DataModel.shared.count = DataModel.shared.count + 1
|
||||
}
|
||||
|
||||
@IBAction func onNext() {
|
||||
let navController = self.navigationController!
|
||||
// Based on the number of view controllers in the stack we push a
|
||||
// SingleFlutterViewController or DoubleFlutterViewController to alternatve
|
||||
// between the two.
|
||||
if navController.viewControllers.count % 4 == 1 {
|
||||
let vc = SingleFlutterViewController(withEntrypoint: nil)
|
||||
navController.pushViewController(vc, animated: true)
|
||||
} else {
|
||||
let vc = DoubleFlutterViewController()
|
||||
navController.pushViewController(vc, animated: true)
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,66 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
|
||||
<plist version="1.0">
|
||||
<dict>
|
||||
<key>CFBundleDevelopmentRegion</key>
|
||||
<string>$(DEVELOPMENT_LANGUAGE)</string>
|
||||
<key>CFBundleExecutable</key>
|
||||
<string>$(EXECUTABLE_NAME)</string>
|
||||
<key>CFBundleIdentifier</key>
|
||||
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
|
||||
<key>CFBundleInfoDictionaryVersion</key>
|
||||
<string>6.0</string>
|
||||
<key>CFBundleName</key>
|
||||
<string>$(PRODUCT_NAME)</string>
|
||||
<key>CFBundlePackageType</key>
|
||||
<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
|
||||
<key>CFBundleShortVersionString</key>
|
||||
<string>1.0</string>
|
||||
<key>CFBundleVersion</key>
|
||||
<string>1</string>
|
||||
<key>LSRequiresIPhoneOS</key>
|
||||
<true/>
|
||||
<key>UIApplicationSceneManifest</key>
|
||||
<dict>
|
||||
<key>UIApplicationSupportsMultipleScenes</key>
|
||||
<false/>
|
||||
<key>UISceneConfigurations</key>
|
||||
<dict>
|
||||
<key>UIWindowSceneSessionRoleApplication</key>
|
||||
<array>
|
||||
<dict>
|
||||
<key>UISceneConfigurationName</key>
|
||||
<string>Default Configuration</string>
|
||||
<key>UISceneDelegateClassName</key>
|
||||
<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
|
||||
<key>UISceneStoryboardFile</key>
|
||||
<string>Main</string>
|
||||
</dict>
|
||||
</array>
|
||||
</dict>
|
||||
</dict>
|
||||
<key>UIApplicationSupportsIndirectInputEvents</key>
|
||||
<true/>
|
||||
<key>UILaunchStoryboardName</key>
|
||||
<string>LaunchScreen</string>
|
||||
<key>UIMainStoryboardFile</key>
|
||||
<string>Main</string>
|
||||
<key>UIRequiredDeviceCapabilities</key>
|
||||
<array>
|
||||
<string>armv7</string>
|
||||
</array>
|
||||
<key>UISupportedInterfaceOrientations</key>
|
||||
<array>
|
||||
<string>UIInterfaceOrientationPortrait</string>
|
||||
<string>UIInterfaceOrientationLandscapeLeft</string>
|
||||
<string>UIInterfaceOrientationLandscapeRight</string>
|
||||
</array>
|
||||
<key>UISupportedInterfaceOrientations~ipad</key>
|
||||
<array>
|
||||
<string>UIInterfaceOrientationPortrait</string>
|
||||
<string>UIInterfaceOrientationPortraitUpsideDown</string>
|
||||
<string>UIInterfaceOrientationLandscapeLeft</string>
|
||||
<string>UIInterfaceOrientationLandscapeRight</string>
|
||||
</array>
|
||||
</dict>
|
||||
</plist>
|
||||
@ -0,0 +1,32 @@
|
||||
// Copyright 2021 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import UIKit
|
||||
|
||||
/// The UIWindowSceneDelegate for the app.
|
||||
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
|
||||
var window: UIWindow?
|
||||
|
||||
func scene(
|
||||
_ scene: UIScene, willConnectTo session: UISceneSession,
|
||||
options connectionOptions: UIScene.ConnectionOptions
|
||||
) {
|
||||
guard let _ = (scene as? UIWindowScene) else { return }
|
||||
}
|
||||
|
||||
func sceneDidDisconnect(_ scene: UIScene) {
|
||||
}
|
||||
|
||||
func sceneDidBecomeActive(_ scene: UIScene) {
|
||||
}
|
||||
|
||||
func sceneWillResignActive(_ scene: UIScene) {
|
||||
}
|
||||
|
||||
func sceneWillEnterForeground(_ scene: UIScene) {
|
||||
}
|
||||
|
||||
func sceneDidEnterBackground(_ scene: UIScene) {
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,57 @@
|
||||
// Copyright 2021 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import Flutter
|
||||
import Foundation
|
||||
|
||||
/// A FlutterViewController intended for the MyApp widget in the Flutter module.
|
||||
///
|
||||
/// This view controller maintains a connection to the Flutter instance and syncs it with the
|
||||
/// datamodel. In practice you should override the other init methods or switch to composition
|
||||
/// instead of inheritence.
|
||||
class SingleFlutterViewController: FlutterViewController, DataModelObserver {
|
||||
private var channel: FlutterMethodChannel?
|
||||
|
||||
init(withEntrypoint entryPoint: String?) {
|
||||
let appDelegate: AppDelegate = UIApplication.shared.delegate as! AppDelegate
|
||||
let newEngine = appDelegate.engines.makeEngine(withEntrypoint: entryPoint, libraryURI: nil)
|
||||
super.init(engine: newEngine, nibName: nil, bundle: nil)
|
||||
DataModel.shared.addObserver(observer: self)
|
||||
}
|
||||
|
||||
deinit {
|
||||
DataModel.shared.removeObserver(observer: self)
|
||||
}
|
||||
|
||||
required init(coder aDecoder: NSCoder) {
|
||||
fatalError("init(coder:) has not been implemented")
|
||||
}
|
||||
|
||||
func onCountUpdate(newCount: Int64) {
|
||||
if let channel = channel {
|
||||
channel.invokeMethod("setCount", arguments: newCount)
|
||||
}
|
||||
}
|
||||
|
||||
override func viewDidLoad() {
|
||||
super.viewDidLoad()
|
||||
channel = FlutterMethodChannel(
|
||||
name: "multiple-flutters", binaryMessenger: self.engine!.binaryMessenger)
|
||||
channel!.invokeMethod("setCount", arguments: DataModel.shared.count)
|
||||
let navController = self.navigationController!
|
||||
channel!.setMethodCallHandler { (call: FlutterMethodCall, result: @escaping FlutterResult) in
|
||||
if call.method == "incrementCount" {
|
||||
DataModel.shared.count = DataModel.shared.count + 1
|
||||
result(nil)
|
||||
} else if call.method == "next" {
|
||||
let storyboard = UIStoryboard(name: "Main", bundle: nil)
|
||||
let vc = storyboard.instantiateViewController(withIdentifier: "NativeViewCount")
|
||||
navController.pushViewController(vc, animated: true)
|
||||
result(nil)
|
||||
} else {
|
||||
result(FlutterMethodNotImplemented)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,11 @@
|
||||
# Uncomment the next line to define a global platform for your project
|
||||
# platform :ios, '9.0'
|
||||
|
||||
flutter_application_path = '../multiple_flutters_module'
|
||||
load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')
|
||||
|
||||
target 'MultipleFluttersIos' do
|
||||
# Comment the next line if you don't want to use dynamic frameworks
|
||||
use_frameworks!
|
||||
install_all_flutter_pods(flutter_application_path)
|
||||
end
|
||||
@ -0,0 +1,28 @@
|
||||
PODS:
|
||||
- Flutter (1.0.0)
|
||||
- FlutterPluginRegistrant (0.0.1):
|
||||
- Flutter
|
||||
- multiple_flutters_module (0.0.1):
|
||||
- Flutter
|
||||
|
||||
DEPENDENCIES:
|
||||
- Flutter (from `../multiple_flutters_module/.ios/Flutter/engine`)
|
||||
- FlutterPluginRegistrant (from `../multiple_flutters_module/.ios/Flutter/FlutterPluginRegistrant`)
|
||||
- multiple_flutters_module (from `../multiple_flutters_module/.ios/Flutter`)
|
||||
|
||||
EXTERNAL SOURCES:
|
||||
Flutter:
|
||||
:path: "../multiple_flutters_module/.ios/Flutter/engine"
|
||||
FlutterPluginRegistrant:
|
||||
:path: "../multiple_flutters_module/.ios/Flutter/FlutterPluginRegistrant"
|
||||
multiple_flutters_module:
|
||||
:path: "../multiple_flutters_module/.ios/Flutter"
|
||||
|
||||
SPEC CHECKSUMS:
|
||||
Flutter: ac41d61a47ae5bf8195a5598d2d63754888ec0d5
|
||||
FlutterPluginRegistrant: 2afd5ea46d3a949472c9b7da6462d8fbf7d8b16e
|
||||
multiple_flutters_module: fdf461a0e4225614d475110d85db6fd6de5aeff1
|
||||
|
||||
PODFILE CHECKSUM: d7f39981f450db398859f05de2475ec53909a487
|
||||
|
||||
COCOAPODS: 1.9.3
|
||||
@ -0,0 +1,17 @@
|
||||
# multiple_flutters_ios
|
||||
|
||||
This is an add-to-app sample that uses the Flutter Engine Group API to host
|
||||
multiple instances of Flutter in an iOS app.
|
||||
|
||||
## Getting Started
|
||||
|
||||
```sh
|
||||
cd ../multiple_flutters_module
|
||||
flutter pub get
|
||||
cd -
|
||||
pod install
|
||||
open MultipleFluttersIos.xcworkspace
|
||||
# (build and run)
|
||||
```
|
||||
|
||||
For more information see: [multiple_flutters/README.md](../README.md)
|
||||
@ -0,0 +1,48 @@
|
||||
.DS_Store
|
||||
.dart_tool/
|
||||
|
||||
.packages
|
||||
.pub/
|
||||
|
||||
.idea/
|
||||
.vagrant/
|
||||
.sconsign.dblite
|
||||
.svn/
|
||||
|
||||
*.swp
|
||||
profile
|
||||
|
||||
DerivedData/
|
||||
|
||||
.generated/
|
||||
|
||||
*.pbxuser
|
||||
*.mode1v3
|
||||
*.mode2v3
|
||||
*.perspectivev3
|
||||
|
||||
!default.pbxuser
|
||||
!default.mode1v3
|
||||
!default.mode2v3
|
||||
!default.perspectivev3
|
||||
|
||||
xcuserdata
|
||||
|
||||
*.moved-aside
|
||||
|
||||
*.pyc
|
||||
*sync/
|
||||
Icon?
|
||||
.tags*
|
||||
|
||||
build/
|
||||
.android/
|
||||
.ios/
|
||||
.flutter-plugins
|
||||
.flutter-plugins-dependencies
|
||||
|
||||
# Symbolication related
|
||||
app.*.symbols
|
||||
|
||||
# Obfuscation related
|
||||
app.*.map.json
|
||||
@ -0,0 +1,10 @@
|
||||
# This file tracks properties of this Flutter project.
|
||||
# Used by Flutter tool to assess capabilities and perform upgrades etc.
|
||||
#
|
||||
# This file should be version controlled and should not be manually edited.
|
||||
|
||||
version:
|
||||
revision: 1d3f6971600f6e3fb144a30fab2b889e34af0c22
|
||||
channel: master
|
||||
|
||||
project_type: module
|
||||
@ -0,0 +1,5 @@
|
||||
# multiple_flutters_module
|
||||
|
||||
This is the Flutter module that is embedded in the `multiple_flutters` projects.
|
||||
|
||||
See also: [multiple_flutters/README.md](../README.md)
|
||||
@ -0,0 +1,98 @@
|
||||
// Copyright 2021 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter/services.dart';
|
||||
|
||||
void main() => runApp(MyApp(Colors.blue));
|
||||
|
||||
@pragma('vm:entry-point')
|
||||
void topMain() => runApp(MyApp(Colors.green));
|
||||
|
||||
@pragma('vm:entry-point')
|
||||
void bottomMain() => runApp(MyApp(Colors.purple));
|
||||
|
||||
class MyApp extends StatelessWidget {
|
||||
MyApp(this.color);
|
||||
|
||||
final Color color;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
title: 'Flutter Demo',
|
||||
theme: ThemeData(
|
||||
primarySwatch: this.color,
|
||||
),
|
||||
home: MyHomePage(title: 'Flutter Demo Home Page'),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class MyHomePage extends StatefulWidget {
|
||||
MyHomePage({Key key, this.title}) : super(key: key);
|
||||
final String title;
|
||||
|
||||
@override
|
||||
_MyHomePageState createState() => _MyHomePageState();
|
||||
}
|
||||
|
||||
class _MyHomePageState extends State<MyHomePage> {
|
||||
int _counter = 0;
|
||||
MethodChannel _channel;
|
||||
|
||||
@override
|
||||
void initState() {
|
||||
super.initState();
|
||||
_channel = MethodChannel('multiple-flutters');
|
||||
_channel.setMethodCallHandler((MethodCall call) async {
|
||||
if (call.method == "setCount") {
|
||||
// A notification that the host platform's data model has been updated.
|
||||
setState(() {
|
||||
_counter = call.arguments as int;
|
||||
});
|
||||
} else {
|
||||
throw Exception('not implemented ${call.method}');
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
void _incrementCounter() {
|
||||
// Mutations to the data model are forwarded to the host platform.
|
||||
_channel.invokeMethod("incrementCount", _counter);
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Scaffold(
|
||||
appBar: AppBar(
|
||||
title: Text(widget.title),
|
||||
),
|
||||
body: Center(
|
||||
child: Column(
|
||||
mainAxisAlignment: MainAxisAlignment.center,
|
||||
children: <Widget>[
|
||||
Text(
|
||||
'You have pushed the button this many times:',
|
||||
),
|
||||
Text(
|
||||
'$_counter',
|
||||
style: Theme.of(context).textTheme.headline4,
|
||||
),
|
||||
TextButton(
|
||||
onPressed: _incrementCounter,
|
||||
child: Text('Add'),
|
||||
),
|
||||
TextButton(
|
||||
onPressed: () {
|
||||
_channel.invokeMethod("next", _counter);
|
||||
},
|
||||
child: Text('Next'),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,153 @@
|
||||
# Generated by pub
|
||||
# See https://dart.dev/tools/pub/glossary#lockfile
|
||||
packages:
|
||||
async:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: async
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "2.5.0"
|
||||
boolean_selector:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: boolean_selector
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "2.1.0"
|
||||
characters:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: characters
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.1.0"
|
||||
charcode:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: charcode
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.2.0"
|
||||
clock:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: clock
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.1.0"
|
||||
collection:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: collection
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.15.0"
|
||||
cupertino_icons:
|
||||
dependency: "direct main"
|
||||
description:
|
||||
name: cupertino_icons
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.0.2"
|
||||
fake_async:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: fake_async
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.2.0"
|
||||
flutter:
|
||||
dependency: "direct main"
|
||||
description: flutter
|
||||
source: sdk
|
||||
version: "0.0.0"
|
||||
flutter_test:
|
||||
dependency: "direct dev"
|
||||
description: flutter
|
||||
source: sdk
|
||||
version: "0.0.0"
|
||||
matcher:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: matcher
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "0.12.10"
|
||||
meta:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: meta
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.3.0"
|
||||
path:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: path
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.8.0"
|
||||
sky_engine:
|
||||
dependency: transitive
|
||||
description: flutter
|
||||
source: sdk
|
||||
version: "0.0.99"
|
||||
source_span:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: source_span
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.8.0"
|
||||
stack_trace:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: stack_trace
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.10.0"
|
||||
stream_channel:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: stream_channel
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "2.1.0"
|
||||
string_scanner:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: string_scanner
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.1.0"
|
||||
term_glyph:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: term_glyph
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.2.0"
|
||||
test_api:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: test_api
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "0.2.19"
|
||||
typed_data:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: typed_data
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "1.3.0"
|
||||
vector_math:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: vector_math
|
||||
url: "https://pub.dartlang.org"
|
||||
source: hosted
|
||||
version: "2.1.0"
|
||||
sdks:
|
||||
dart: ">=2.12.0-0.0 <3.0.0"
|
||||
@ -0,0 +1,25 @@
|
||||
name: multiple_flutters_module
|
||||
description: A module that is embedded in the multiple_flutters_ios and multiple_flutters_android sample code.
|
||||
|
||||
version: 1.0.0+1
|
||||
|
||||
environment:
|
||||
sdk: ">=2.8.1 <3.0.0"
|
||||
|
||||
dependencies:
|
||||
flutter:
|
||||
sdk: flutter
|
||||
|
||||
cupertino_icons: ^1.0.0
|
||||
|
||||
dev_dependencies:
|
||||
flutter_test:
|
||||
sdk: flutter
|
||||
|
||||
flutter:
|
||||
uses-material-design: true
|
||||
|
||||
module:
|
||||
androidX: true
|
||||
androidPackage: com.example.multiple_flutters_module
|
||||
iosBundleIdentifier: com.example.multipleFluttersModule
|
||||
Loading…
Reference in new issue