batterylevel

问题 We are writing a chrome extension that returns a random battery level when the battery level is checked by a site running client-side code for fingerprinting reasons. Sample code that can be used by a site can be seen below. navigator.getBattery().then(function(battery) { console.log(battery.level); }); We are unable to find documentation regarding how the navigator.getBattery() method can be overwritten to accomplish the goal. The incomplete content-script.js can be seen below. var

问题 We are writing a chrome extension that returns a random battery level when the battery level is checked by a site running client-side code for fingerprinting reasons. Sample code that can be used by a site can be seen below. navigator.getBattery().then(function(battery) { console.log(battery.level); }); We are unable to find documentation regarding how the navigator.getBattery() method can be overwritten to accomplish the goal. The incomplete content-script.js can be seen below. var

问题 I decided to build a tool to display the battery level of a pair of Bluetooth headphones, since I got this feature on Android, but not on Windows. For some reason, it just doesn't display in the settings. I'm using UWP and with the Device Enumerator I managed to pull a list of connected devices. Is there any way to get the battery level from this point? I've seen that people are using RFCom or GATT, but their issue involves connecting to the device, which I think is redundant since the tool

问题 I decided to build a tool to display the battery level of a pair of Bluetooth headphones, since I got this feature on Android, but not on Windows. For some reason, it just doesn't display in the settings. I'm using UWP and with the Device Enumerator I managed to pull a list of connected devices. Is there any way to get the battery level from this point? I've seen that people are using RFCom or GATT, but their issue involves connecting to the device, which I think is redundant since the tool

问题 I decided to build a tool to display the battery level of a pair of Bluetooth headphones, since I got this feature on Android, but not on Windows. For some reason, it just doesn't display in the settings. I'm using UWP and with the Device Enumerator I managed to pull a list of connected devices. Is there any way to get the battery level from this point? I've seen that people are using RFCom or GATT, but their issue involves connecting to the device, which I think is redundant since the tool

问题 I am using Arduino Nano and various Li-Fe , Li-Po batteries of 9.9V , 6.6V and 3.7V. I can read the voltage of the battery using Arduino . My Arduino works at 5V so for batteries like 9.9V and 6.6V I have used a voltage divider using two 10k resistors.But the problem is I need to read the the % of charged battery , I tried something in the code but I am not sure about it. Please anyone help me with it. My code is: #define cellPin A0 const float mvpc = 4.55 ; //measured voltage of arduino

问题 Here my question is, can we identify, how much battery life my android application is utilising. Because I developed an app based on GPS as well as network, service, broadcast receivers, so I have battery drain problem, so first of all i want to know that how much battery percentage is my application using. Any idea. Thanks in advance. 回答1: It is difficult to say exactly how much battery life is used by specific application. But, you can refer following links which may give you a little idea.

问题 I have seen posts where it was mentioned registerReceiver has to be called (not defined in manifest) to receive ACTION_BATTERY_LOW intent. public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { //.... registerReceiver(new BatteryLevelReceiver(), new IntentFilter( Intent.ACTION_BATTERY_LOW)); } // ....... } BroadcastReceiver public class BatteryLevelReceiver extends BroadcastReceiver { private static final String TAG = BatteryLevelReceiver

问题 I am developing an application where I have to connect to Bluetooth device on Android 4.3. And I want to get the battery level by using Battery_Service and Battery_Level . public class BluetoothLeService extends Service { private static final UUID Battery_Service_UUID = UUID.fromString("0000180F-0000-1000-8000-00805f9b34fb"); private static final UUID Battery_Level_UUID = UUID.fromString("00002a19-0000-1000-8000-00805f9b34fb"); public void getbattery() { BluetoothGattService batteryService =

问题 i found i great library to draw graphs. I want to create one that displays in the x axis the time and in y the battery percentage. My goal is create a graph like this: You can see the percentage on the left and the date/time on bottom. Starting from this example code : https://github.com/jjoe64/GraphView-Demos/blob/master/src/com/jjoe64/graphviewdemos/CustomLabelFormatterActivity.java i want insert the correct data but i never used graphs. This is the activity public class