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45 lines
1.4 KiB
Objective-C
45 lines
1.4 KiB
Objective-C
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#import "AppDelegate.h"
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#import <Flutter/Flutter.h>
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@implementation AppDelegate
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- (BOOL)application:(UIApplication*)application
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didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
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FlutterViewController* controller =
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(FlutterViewController*)self.window.rootViewController;
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FlutterMethodChannel* batteryChannel = [FlutterMethodChannel
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methodChannelWithName:@"samples.flutter.io/battery"
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binaryMessenger:controller];
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[batteryChannel setMethodCallHandler:^(FlutterMethodCall* call,
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FlutterResultReceiver result) {
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if ([@"getBatteryLevel" isEqualToString:call.method]) {
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int batteryLevel = [self getBatteryLevel];
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if (batteryLevel == -1) {
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result([FlutterError errorWithCode:@"UNAVAILABLE"
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message:@"Battery info unavailable"
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details:nil]);
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} else {
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result(@(batteryLevel));
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}
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} else {
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result(FlutterMethodNotImplemented);
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}
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}];
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return YES;
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}
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- (int)getBatteryLevel {
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UIDevice* device = UIDevice.currentDevice;
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device.batteryMonitoringEnabled = YES;
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if (device.batteryState == UIDeviceBatteryStateUnknown) {
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return -1;
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} else {
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return ((int)(device.batteryLevel * 100));
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}
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}
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@end
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