batterylevel

问题 I am developing a small android application in which I want to have Geolocation functionality. What I want to code is one service which gives the updated location of a user whether they are using my application or not. I know that if I am continuously checking the user's location it will drain the battery of the device, so I want good solution for that. For example, to give me updates every 5 or 10 minutes. I have read about this question a lot but I wanted to get one good solution. I read

问题 This question already has answers here : Get battery level before broadcast receiver responds for Intent.ACTION_BATTERY_CHANGED (6 answers) Closed 6 years ago . I've searched on the web and couldn't find the answer to my question. My problem is to get the battery level information only once, eg. calling the function getBatteryLevel() . There are only solutions which are implemented using BroadcastReceiver , but as I know it will be called every time on battery level's change event. Please,

问题 I want to know if there is any way I can get the percentage of battery usage for each app used by the user in iOS using Swift 2. It is like in Settings > Battery and there will be a battery usage group. Please help 回答1: No, there is no simple "show me a battery usage breakdown by app" option. It is quite complex to figure out what factors lead to battery drain. 来源： https://stackoverflow.com/questions/32819490/get-individual-app-battery-usage-ios

问题 I am designing a program that depends on monitoring the battery level of the computer. This is the C# code I am using: PowerStatus pw = SystemInformation.PowerStatus; if (pw.BatteryLifeRemaining >= 75) { //Do stuff here } My failed attempt of the while statement, it uses all the CPU which is undesirable. int i = 1; while (i == 1) { if (pw.BatteryLifeRemaining >= 75) { //Do stuff here } } How do I monitor this constantly with an infinite loop so that when it reaches 75% it will execute some

问题 I want to get the battery level,and Accurate to 1%. I googled and find this, CFTypeRef blob = IOPSCopyPowerSourcesInfo(); CFArrayRef sources = IOPSCopyPowerSourcesList(blob); CFDictionaryRef pSource = NULL; const void *psValue; int numOfSources = CFArrayGetCount(sources); if (numOfSources == 0) { NSLog(@"Error in CFArrayGetCount"); return -1.0f; } for (int i = 0 ; i < numOfSources ; i++) { pSource = IOPSGetPowerSourceDescription(blob, CFArrayGetValueAtIndex(sources, i)); if (!pSource) { NSLog

问题 android how to get battery usage per application. i have seen the applications that provides the battery used per application, but i do not find the api for this.reference link for the application application that perform the same 回答1: In the system level its showing some required information to get per application power consumption(Power Profiling) when we run the command "adb shell dumpsys batterystats" And the output is given below which was redirected to a output file.We can parse it and

问题 So I currently have the following commonly used method of acquiring the current battery level implemented in my android app. int getBatteryPercent(){ IntentFilter ifilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED); Intent batteryStatus = this.registerReceiver(null, ifilter); int level = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, -1); return level; } The problem is that this returns an integer 0-100. In order to ensure accuracy of one of my algorithms, I need to be able to

问题 I want to create a battery level indicator as in the image(which i circled). The green part should fill based on the available battery in the device. Getting the battery percentage from the device like this registerReceiver(mBatInfoReceiver, new IntentFilter( Intent.ACTION_BATTERY_CHANGED)); So in the layout i am able to display the battery percentage. public class BatteryIndicatorActivity extends Activity { //Create Broadcast Receiver Object along with class definition private

问题 I am working on battery saver app. There I need to detect remaining battery. I have done following. public class HomeActivity extends Activity { TextView tv_battery; @Override public void onCreate(Bundle b) { super.onCreate(b); setContentView(R.layout.main); tv_battery = (TextView) findViewById(R.id.tv_battery); } @Override protected void onResume() { super.onResume(); registerReceiver(mBatteryReceiver, new IntentFilter(Intent.ACTION_BATTERY_LOW )); } private BroadcastReceiver

问题 I want to show battery usage of the app on the status bar of the app. It uses GPS, so GPS signal and details of battery usage by app would be useful for the users about the battery drain. Is there a way to get the battery usage from the device? and to show only the amount of battery drained by my app alone. On instruments it shows the graph over the time. I want to show battery usage in numerical format, not a graph. 回答1: Use below code to get battery level UIDevice *myDevice = [UIDevice