feat(Device): Add getBatteryInfo function

android/capacitor/src/main/java/com/getcapacitor/plugin/Device.java

@@ -35,9 +35,17 @@ public void getInfo(PluginCall call) {
     r.put("platform", getPlatform());
     r.put("manufacturer", android.os.Build.MANUFACTURER);
     r.put("uuid", getUuid());
+    r.put("isVirtual", isVirtual());
+
+    call.success(r);
+  }
+
+  @PluginMethod()
+  public void getBatteryInfo(PluginCall call) {
+    JSObject r = new JSObject();
+
     r.put("batteryLevel", getBatteryLevel());
     r.put("isCharging", isCharging());
-    r.put("isVirtual", isVirtual());
 
     call.success(r);
   }

core/src/core-plugin-definitions.ts

@@ -395,6 +395,10 @@ export interface DevicePlugin extends Plugin {
    * Return information about the underlying device/os/platform
    */
   getInfo(): Promise<DeviceInfo>;
+  /**
+   * Return information about the battery
+   */
+  getBatteryInfo(): Promise<DeviceBatteryInfo>;
   /**
    * Get the device's current language locale code
    */
@@ -455,6 +459,9 @@ export interface DeviceInfo {
    * The total size of the normal data storage path for the OS, in bytes
    */
   diskTotal?: number;
+}
+
+export interface DeviceBatteryInfo {
   /**
    * A percentage (0 to 1) indicating how much the battery is charged
    */

core/src/web/device.ts

@@ -1,6 +1,7 @@
 import { WebPlugin } from './index';
 
 import {
+  DeviceBatteryInfo,
   DeviceInfo,
   DevicePlugin,
   DeviceLanguageCodeResult
@@ -21,13 +22,6 @@ export class DevicePluginWeb extends WebPlugin implements DevicePlugin {
   async getInfo(): Promise<DeviceInfo> {
     const ua = navigator.userAgent;
     const uaFields = this.parseUa(ua);
-    let battery: any = {};
-
-    try {
-      battery = await navigator.getBattery();
-    } catch (e) {
-      // Let it fail, we don't care
-    }
 
     return Promise.resolve({
       model: uaFields.model,
@@ -38,12 +32,25 @@ export class DevicePluginWeb extends WebPlugin implements DevicePlugin {
       osVersion: uaFields.osVersion,
       manufacturer: navigator.vendor,
       isVirtual: false,
-      batteryLevel: battery.level,
-      isCharging: battery.charging,
       uuid: this.getUid()
     });
   }
 
+  async getBatteryInfo(): Promise<DeviceBatteryInfo> {
+    let battery: any = {};
+
+    try {
+      battery = await navigator.getBattery();
+    } catch (e) {
+      // Let it fail, we don't care
+    }
+
+    return Promise.resolve({
+      batteryLevel: battery.level,
+      isCharging: battery.charging
+    });
+  }
+
   async getLanguageCode(): Promise<DeviceLanguageCodeResult> {
     return {
       value: navigator.language

electron/src/electron/device.ts

@@ -1,4 +1,4 @@
-import { DeviceInfo, DeviceLanguageCodeResult, DevicePlugin, DevicePluginWeb, WebPlugin } from "@capacitor/core";
+import { DeviceBatteryInfo, DeviceInfo, DeviceLanguageCodeResult, DevicePlugin, DevicePluginWeb, WebPlugin } from "@capacitor/core";
 
 declare var navigator: any;
 const webDevice = new DevicePluginWeb();
@@ -23,12 +23,19 @@ export class DevicePluginElectron extends WebPlugin implements DevicePlugin {
       osVersion: info.osVersion,
       manufacturer: navigator.vendor,
       isVirtual: false,
-      batteryLevel: info.batteryLevel,
-      isCharging: info.isCharging,
       uuid: info.uuid
     };
   }
 
+  async getBatteryInfo(): Promise<DeviceBatteryInfo> {
+    var batInfo = await webDevice.getBatteryInfo();
+
+    return {
+      batteryLevel: batInfo.batteryLevel,
+      isCharging: batInfo.isCharging
+    };
+  }
+
   async getLanguageCode(): Promise<DeviceLanguageCodeResult> {
     return webDevice.getLanguageCode();
   }

ios/Capacitor/Capacitor/Plugins/DefaultPlugins.m

@@ -40,6 +40,7 @@
 
 CAP_PLUGIN(CAPDevicePlugin, "Device",
   CAP_PLUGIN_METHOD(getInfo, CAPPluginReturnPromise);
+  CAP_PLUGIN_METHOD(getBatteryInfo, CAPPluginReturnPromise);
   CAP_PLUGIN_METHOD(getLanguageCode, CAPPluginReturnPromise);
 )
 

ios/Capacitor/Capacitor/Plugins/Device.swift

@@ -5,19 +5,17 @@ public typealias DeviceInfo = [String:Any]
 @objc(CAPDevicePlugin)
 public class CAPDevicePlugin: CAPPlugin {
   let diagnostics: Diagnostics = Diagnostics()
-  
+
   @objc func getInfo(_ call: CAPPluginCall) {
     var isSimulator = false
     #if arch(i386) || arch(x86_64)
       isSimulator = true
     #endif
-
-    UIDevice.current.isBatteryMonitoringEnabled = true
-
+
     let memUsed = diagnostics.getMemoryUsage()
     let diskFree = diagnostics.getFreeDiskSize() ?? 0
     let diskTotal = diagnostics.getTotalDiskSize() ?? 0
-    
+
     call.success([
       "memUsed": memUsed,
       "diskFree": diskFree,
@@ -30,14 +28,21 @@ public class CAPDevicePlugin: CAPPlugin {
       "platform": "ios",
       "manufacturer": "Apple",
       "uuid": UIDevice.current.identifierForVendor!.uuidString,
-      "batteryLevel": UIDevice.current.batteryLevel,
-      "isCharging": UIDevice.current.batteryState == .charging || UIDevice.current.batteryState == .full,
       "isVirtual": isSimulator
     ])
-
+  }
+
+  @objc func getBatteryInfo(_ call: CAPPluginCall) {
+    UIDevice.current.isBatteryMonitoringEnabled = true
+
+    call.success([
+      "batteryLevel": UIDevice.current.batteryLevel,
+      "isCharging": UIDevice.current.batteryState == .charging || UIDevice.current.batteryState == .full
+    ])
+
     UIDevice.current.isBatteryMonitoringEnabled = false
   }
-  
+
   @objc func getLanguageCode(_ call: CAPPluginCall) {
     let code = String(Locale.preferredLanguages[0].prefix(2))
     call.success([