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Update platform_services to query battery level instead of location. (#8554)

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This commit is contained in:
Sarah Zakarias 2017-03-06 11:52:31 +01:00 committed by GitHub
parent bbf84b1d69
commit 63b9f56c55
8 changed files with 64 additions and 187 deletions
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61
examples/platform_services/README.md
View File

@ -6,61 +6,12 @@ You can read more about
[accessing platform and third-party services in Flutter](https://flutter.io/platform-services/).
## iOS
### Configure
Create an `ios/Flutter/Generated.xcconfig` file with this entry:
* `FLUTTER_ROOT=[absolute path to the Flutter SDK]`
There are a number of other parameters you can control with this file:
* `FLUTTER_APPLICATION_PATH`: The path to the directory that contains your
`pubspec.yaml` file relative to your `xcodeproj` file.
* `FLUTTER_BUILD_MODE`: Whether to build for `debug`, `profile`, or `release`.
Defaults to `release`.
* `FLUTTER_TARGET`: The path to your `main.dart` relative to your
`pubspec.yaml`. Defaults to `lib/main.dart`.
* `FLUTTER_FRAMEWORK_DIR`: The absolute path to the directory that contains
`Flutter.framework`. Defaults to the `ios-release` version of
`Flutter.framework` in the `bin/cache` directory of the Flutter SDK.
### Build
Once you've configured your project, you can open `ios/Runner.xcodeproj`
in Xcode and build the project as usual.
You can use the commands `flutter build` and `flutter run` from the app's root
directory to build/run the app or you can open `ios/Runner.xcworkspace` in Xcode
and build/run the project as usual.
## Android
### Configure
Create an `android/local.properties` file with these entries:
* `sdk.dir=[path to the Android SDK]`
* `flutter.sdk=[path to the Flutter SDK]`
There are a number of other parameters you can control with this file:
* `flutter.buildMode`: Whether to build for `debug`, `profile`, or `release`.
Defaults to `release`.
* `flutter.jar`: The path to `flutter.jar`. Defaults to the
`android-arm-release` version of `flutter.jar` in the `bin/cache` directory
of the Flutter SDK.
See `android/app/build.gradle` for project specific settings, including:
* `source`: The path to the directory that contains your `pubspec.yaml` file
relative to your `build.gradle` file.
* `target`: The path to your `main.dart` relative to your `pubspec.yaml`.
Defaults to `lib/main.dart`.
### Build
To build directly with `gradle`, use the following commands:
* `cd android`
* `gradle wrapper`
* `./gradlew build`
To build with Android Studio, open the `android` folder in Android Studio and
build the project as usual.
You can use the commands `flutter build` and `flutter run` from the app's root
directory to build/run the app or to build with Android Studio, open the
`android` folder in Android Studio and build the project as usual.

67
examples/platform_services/android/app/src/main/java/com/example/flutter/ExampleActivity.java
View File

@ -4,10 +4,9 @@
package com.example.flutter;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationManager;
import android.os.BatteryManager;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
import io.flutter.app.FlutterActivity;
@ -15,49 +14,33 @@ import io.flutter.plugin.common.FlutterMethodChannel;
import io.flutter.plugin.common.FlutterMethodChannel.MethodCallHandler;
import io.flutter.plugin.common.FlutterMethodChannel.Response;
import io.flutter.plugin.common.MethodCall;
import io.flutter.view.FlutterView;
public class ExampleActivity extends FlutterActivity {
private FlutterView flutterView;
private static final String CHANNEL = "battery";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
new FlutterMethodChannel(getFlutterView(), "geo").setMethodCallHandler(new MethodCallHandler() {
@Override
public void onMethodCall(MethodCall call, Response response) {
if (call.method.equals("getLocation")) {
if (!(call.arguments instanceof String)) {
throw new IllegalArgumentException("Invalid argument type, String expected");
}
getLocation((String) call.arguments, response);
} else {
throw new IllegalArgumentException("Unknown method " + call.method);
}
}
});
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
private void getLocation(String provider, Response response) {
String locationProvider;
if (provider.equals("network")) {
locationProvider = LocationManager.NETWORK_PROVIDER;
} else if (provider.equals("gps")) {
locationProvider = LocationManager.GPS_PROVIDER;
} else {
throw new IllegalArgumentException("Unknown provider " + provider);
}
String permission = "android.permission.ACCESS_FINE_LOCATION";
if (checkCallingOrSelfPermission(permission) == PackageManager.PERMISSION_GRANTED) {
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Location location = locationManager.getLastKnownLocation(locationProvider);
if (location != null) {
response.success(new double[] { location.getLatitude(), location.getLongitude() });
new FlutterMethodChannel(getFlutterView(), CHANNEL).setMethodCallHandler(
new MethodCallHandler() {
@Override
public void onMethodCall(MethodCall call, Response response) {
if (call.method.equals("getBatteryLevel")) {
getBatteryLevel(response);
} else {
response.error("unknown", "Location unknown", null);
throw new IllegalArgumentException("Unknown method " + call.method);
}
} else {
response.error("permission", "Access denied", null);
}
}
});
}
private void getBatteryLevel(Response response) {
BatteryManager batteryManager = (BatteryManager) getSystemService(BATTERY_SERVICE);
if (VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP) {
response.success(batteryManager.getIntProperty(BatteryManager.BATTERY_PROPERTY_CAPACITY));
} else {
response.error("Not available", "Battery level not available.", null);
}
}
}

6
examples/platform_services/ios/Runner.xcodeproj/project.pbxproj
View File

@ -13,7 +13,6 @@
9740EEB41CF90195004384FC /* Flutter.xcconfig in Resources */ = {isa = PBXBuildFile; fileRef = 9740EEB21CF90195004384FC /* Flutter.xcconfig */; };
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 */; };
@ -42,8 +41,6 @@
9740EEB71CF902C7004384FC /* app.flx */ = {isa = PBXFileReference; lastKnownFileType = file; name = app.flx; path = Flutter/app.flx; sourceTree = "<group>"; };
9740EEB81CF902C7004384FC /* app.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; name = app.dylib; path = Flutter/app.dylib; 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 /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
@ -105,8 +102,6 @@
97C146F11CF9000F007C117D /* Supporting Files */,
97A38A331CFDEC680099F1B4 /* AppDelegate.h */,
97A38A341CFDEC880099F1B4 /* AppDelegate.m */,
977505171CFDF21E00BC28DA /* LocationProvider.h */,
977505181CFDF23500BC28DA /* LocationProvider.m */,
);
path = Runner;
sourceTree = "<group>";
@ -212,7 +207,6 @@
files = (
97A38A351CFDEC880099F1B4 /* AppDelegate.m in Sources */,
97C146F31CF9000F007C117D /* main.m in Sources */,
977505191CFDF23500BC28DA /* LocationProvider.m in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};

12
examples/platform_services/ios/Runner/AppDelegate.m
View File

@ -5,23 +5,11 @@
#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* flutterController = [[FlutterViewController alloc] initWithProject:project
nibName:nil
bundle:nil];
_locationProvider = [[LocationProvider alloc] init];
[flutterController addMessageListener:_locationProvider];
self.window.rootViewController = flutterController;
[self.window makeKeyAndVisible];
return YES;
}

19
examples/platform_services/ios/Runner/Base.lproj/Main.storyboard
View File

@ -1,21 +1,26 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11762" systemVersion="16D32" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
<device id="retina4_7" orientation="portrait">
<adaptation id="fullscreen"/>
</device>
<dependencies>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
<deployment identifier="iOS"/>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11757"/>
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
</dependencies>
<scenes>
<!--View Controller-->
<!--Flutter View Controller-->
<scene sceneID="tne-QT-ifu">
<objects>
<viewController id="BYZ-38-t0r" customClass="ViewController" customModuleProvider="" sceneMemberID="viewController">
<viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
<layoutGuides>
<viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
<viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
</layoutGuides>
<view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
<rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
<color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
</view>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>

9
examples/platform_services/ios/Runner/LocationProvider.h
View File

@ -1,9 +0,0 @@
// 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

39
examples/platform_services/ios/Runner/LocationProvider.m
View File

@ -1,39 +0,0 @@
// 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"
#import <CoreLocation/CoreLocation.h>
@implementation LocationProvider {
CLLocationManager* _locationManager;
}
@synthesize messageName = _messageName;
- (instancetype) init {
self = [super init];
if (self)
self->_messageName = @"getLocation";
return self;
}
- (NSString*)didReceiveString:(NSString*)message {
if (_locationManager == nil) {
_locationManager = [[CLLocationManager alloc] init];
[_locationManager startMonitoringSignificantLocationChanges];
}
CLLocation* location = _locationManager.location;
NSDictionary* response = @{
@"latitude": @(location.coordinate.latitude),
@"longitude": @(location.coordinate.longitude),
};
NSData* data = [NSJSONSerialization dataWithJSONObject:response options:0 error:nil];
return [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}
@end

36
examples/platform_services/lib/main.dart
View File

@ -3,6 +3,7 @@
// found in the LICENSE file.
import 'dart:async';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
@ -13,20 +14,23 @@ class PlatformServices extends StatefulWidget {
}
class _PlatformServicesState extends State<PlatformServices> {
static const PlatformMethodChannel platform = const PlatformMethodChannel('geo');
String _location = 'Unknown location.';
static const PlatformMethodChannel platform = const PlatformMethodChannel('battery');
String _batteryLevel = 'Unknown battery level.';
Future<Null> _getLocation() async {
String location;
try {
final List<double> result = await platform.invokeMethod('getLocation', 'network');
location = 'Latitude ${result[0]}, Longitude ${result[1]}.';
} on PlatformException catch (e) {
location = "Failed to get location: '${e.message}'.";
Future<Null> _getBatteryLevel() async {
String batteryLevel;
if (Platform.isIOS) {
batteryLevel = "iOS is not supported yet.";
} else {
try {
final int result = await platform.invokeMethod('getBatteryLevel');
batteryLevel = 'Battery level at $result. %';
} on PlatformException catch (e) {
batteryLevel = "Failed to get battery level: '${e.message}'.";
}
}
setState(() {
_location = location;
_batteryLevel = batteryLevel;
});
}
@ -38,13 +42,13 @@ class _PlatformServicesState extends State<PlatformServices> {
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
new RaisedButton(
child: new Text('Get Location'),
onPressed: _getLocation,
child: new Text('Get Battery Level'),
onPressed: _getBatteryLevel,
),
new Text(_location)
new Text(_batteryLevel)
],
),
),
)
)
);
}
}