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Teach hello_services to provide a platform service (#4277)

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Currently this service just returns mock data, but it exercises the plumbing.
This commit is contained in:
Adam Barth 2016-05-31 13:18:53 -07:00
parent 54716cdaca
commit 8c805e234d
8 changed files with 162 additions and 7 deletions
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12
examples/hello_services/ios/HelloServices.xcodeproj/project.pbxproj
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@ -13,6 +13,8 @@
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9740EEB51CF90195004384FC /* Generated.xcconfig in Resources */ = {isa = PBXBuildFile; fileRef = 9740EEB31CF90195004384FC /* Generated.xcconfig */; };
9740EEBB1CF902C7004384FC /* app.flx in Resources */ = {isa = PBXBuildFile; fileRef = 9740EEB71CF902C7004384FC /* app.flx */; };
977505191CFDF23500BC28DA /* LocationProvider.m in Sources */ = {isa = PBXBuildFile; fileRef = 977505181CFDF23500BC28DA /* LocationProvider.m */; };
97A38A351CFDEC880099F1B4 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 97A38A341CFDEC880099F1B4 /* AppDelegate.m */; };
97C146F31CF9000F007C117D /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 97C146F21CF9000F007C117D /* main.m */; };
97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
@ -40,6 +42,10 @@
9740EEB71CF902C7004384FC /* app.flx */ = {isa = PBXFileReference; lastKnownFileType = file; name = app.flx; path = Flutter/app.flx; sourceTree = "<group>"; };
9740EEB81CF902C7004384FC /* app.so */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; name = app.so; path = Flutter/app.so; sourceTree = "<group>"; };
9740EEBA1CF902C7004384FC /* Flutter.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Flutter.framework; path = Flutter/Flutter.framework; sourceTree = "<group>"; };
977505171CFDF21E00BC28DA /* LocationProvider.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = LocationProvider.h; sourceTree = "<group>"; };
977505181CFDF23500BC28DA /* LocationProvider.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = LocationProvider.m; sourceTree = "<group>"; };
97A38A331CFDEC680099F1B4 /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
97A38A341CFDEC880099F1B4 /* AppDelegate.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
97C146EE1CF9000F007C117D /* HelloServices.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = HelloServices.app; sourceTree = BUILT_PRODUCTS_DIR; };
97C146F21CF9000F007C117D /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
@ -97,6 +103,10 @@
97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
97C147021CF9000F007C117D /* Info.plist */,
97C146F11CF9000F007C117D /* Supporting Files */,
97A38A331CFDEC680099F1B4 /* AppDelegate.h */,
97A38A341CFDEC880099F1B4 /* AppDelegate.m */,
977505171CFDF21E00BC28DA /* LocationProvider.h */,
977505181CFDF23500BC28DA /* LocationProvider.m */,
);
path = HelloServices;
sourceTree = "<group>";
@ -200,7 +210,9 @@
isa = PBXSourcesBuildPhase;
buildActionMask = 2147483647;
files = (
97A38A351CFDEC880099F1B4 /* AppDelegate.m in Sources */,
97C146F31CF9000F007C117D /* main.m in Sources */,
977505191CFDF23500BC28DA /* LocationProvider.m in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};

12
examples/hello_services/ios/HelloServices/AppDelegate.h Normal file
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@ -0,0 +1,12 @@
// Copyright 2016 The Chromium Authors. 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/UIKit.h>
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@end

28
examples/hello_services/ios/HelloServices/AppDelegate.m Normal file
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@ -0,0 +1,28 @@
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "AppDelegate.h"
#import <Flutter/Flutter.h>
#import "LocationProvider.h"
@implementation AppDelegate {
LocationProvider* _locationProvider;
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
FlutterDartProject* project = [[FlutterDartProject alloc] initFromDefaultSourceForConfiguration];
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
FlutterViewController* controller = [[FlutterViewController alloc] initWithProject:project
nibName:nil
bundle:nil];
_locationProvider = [[LocationProvider alloc] init];
[controller addMessageListener: _locationProvider];
self.window.rootViewController = controller;
[self.window makeKeyAndVisible];
return YES;
}
@end

6
examples/hello_services/ios/HelloServices/Base.lproj/LaunchScreen.storyboard
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@ -1,7 +1,8 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="8150" systemVersion="15A204g" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
<dependencies>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="8122"/>
<deployment identifier="iOS"/>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
</dependencies>
<scenes>
<!--View Controller-->
@ -15,7 +16,6 @@
<view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
<rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<animations/>
<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
</view>
</viewController>

9
examples/hello_services/ios/HelloServices/LocationProvider.h Normal file
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@ -0,0 +1,9 @@
// Copyright 2016 The Chromium Authors. 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/Flutter.h>
@interface LocationProvider : NSObject <FlutterMessageListener>
@end

28
examples/hello_services/ios/HelloServices/LocationProvider.m Normal file
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@ -0,0 +1,28 @@
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "LocationProvider.h"
@implementation LocationProvider
@synthesize messageName = _messageName;
- (instancetype) init {
self = [super init];
if (self)
self->_messageName = @"getLocation";
return self;
}
- (NSString*)didReceiveString:(NSString*)message {
NSDictionary* response = @{
@"latitude": @3.29334,
@"longitude": @8.2492492
};
NSData* data = [NSJSONSerialization dataWithJSONObject:response options:0 error:nil];
return [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}
@end

3
examples/hello_services/ios/HelloServices/main.m
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@ -4,11 +4,12 @@
#import <UIKit/UIKit.h>
#import <Flutter/Flutter.h>
#import "AppDelegate.h"
int main(int argc, char * argv[]) {
FlutterInit(argc, (const char**)argv);
@autoreleasepool {
return UIApplicationMain(argc, argv, nil,
NSStringFromClass([FlutterAppDelegate class]));
NSStringFromClass([AppDelegate class]));
}
}

71
examples/hello_services/lib/main.dart
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@ -1,7 +1,72 @@
// Copyright 2015 The Chromium Authors. All rights reserved.
// Copyright 2016 The Chromium Authors. 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/widgets.dart';
import 'dart:async';
import 'dart:convert';
import 'dart:math';
void main() => runApp(new Center(child: new Text('Hello, world!')));
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
final Random random = new Random();
Future<String> handleGetRandom(String json) async {
Map<String, dynamic> message = JSON.decode(json);
double min = message['min'].toDouble();
double max = message['max'].toDouble();
double value = (random.nextDouble() * (max - min)) + min;
Map<String, double> reply = <String, double>{'value': value};
return JSON.encode(reply);
}
class HelloServices extends StatefulWidget {
@override
_HelloServicesState createState() => new _HelloServicesState();
}
class _HelloServicesState extends State<HelloServices> {
double _latitude;
double _longitude;
@override
Widget build(BuildContext context) {
return new Material(
child: new Center(
child: new Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
new Text('Hello from Flutter!'),
new RaisedButton(
child: new Text('Get Location'),
onPressed: _getLocation
),
new Text('Latitude: $_latitude, Longitude: $_longitude'),
]
)
)
);
}
void _getLocation() {
Map<String, String> message = <String, String>{'provider': 'network'};
HostMessages.sendToHost('getLocation', JSON.encode(message))
.then(_onReceivedLocation);
}
void _onReceivedLocation(String json) {
Map<String, double> reply = JSON.decode(json);
setState(() {
_latitude = reply['latitude'];
_longitude = reply['longitude'];
});
}
}
void main() {
runApp(new HelloServices());
HostMessages.addMessageHandler('getRandom', handleGetRandom);
}