t420 battery life

AlarmmanagerElapsed_timeElapsed_time_wakeupRtcRtc_wakeupexpressed using Elapsed_time and RTC. Assume that the device does not wake up and then wait for the device to wake up to run the corresponding actionSo try to use both of these parametersIn addition, the use of Alarmmanager setinexactrepeating is also able to achieve the purpose of power saving, the main difference is how the system to arrange reminders, Android can adjust the actual trigger events. Triggering multiple reminders at the sam

How to improve notebook battery life? in the use of notebook computer always feel more and more inadequate battery, life is poor, how can simple and effective solution to this problem? The easiest thing to do is look for the screen for reasons. There is no doubt that the screen is one of the most consumabl

1. Press the "Windows" key on the keyboard in desktop mode to enter the Start screen.2. Drag the mouse to any place under the "Start" screen and click on the arrow below to enter the application list.3. Click on "Samsung Setup Center" in the "Apps" list.4. Select "Power Management".5. Select "Power supply Life Extension".6. Drag the slider below the "battery life

Did you find the battery dead during an important meeting or a long flight? Even with new technology, a single rechargeable laptop or tablet can only last that long. This technique is designed to fully utilize the power supply. Here are some ways to help you extend your computer's battery life: Select an energy-efficient power plan. Windows 8 has two such defau

Android devices typically have multiple data connections:(1) Bluetooth(2) Ethernet(3) Wi-Fi(4) WiMax(5) mobile network (EDGE,UMTS,LTE)Get Network information:public class NetInfo extends Activity {private TextView netinfoshow,netinfoshows; @Overrideprotected void OnCreate ( Bundle savedinstancestate) {//TODO auto-generated method Stubsuper.oncreate (savedinstancestate); Setcontentview ( R.layout.net_info); netinfoshow = (TextView) Findviewbyid (r.id.net_show); netinfoshows = (TextView) Findviewb

Android offers a variety of location services:(1) GPS (Global Positioning system using satellites);(2) Network (base station location with Cell-id, Wi-Fi service address)(3) Passive (API Level 8 added)In the absence of special requirements, you can set the frequency of updates and reduce the number of requests. Register Listener, disable location monitoring when not in useAccept Location Updatesprivate void Requestlocationupdates () {Locationmanager LM = (locationmanager) getsystemservice (conte

designed the Wakelock class for this scenario:private void Runinwakelock (Runnable Runnable, int flags) {PowerManager PM = (powermanager) getsystemservice ( Context.power_service); Powermanager.wakelock WL = Pm.newwakelock (Flags, "My WakeLock"); Wl.acquire (); Runnable.run (); Wl.release ();}Note: The app requires Wake_lock permissions to use.The behavior of the system depends on the tag (flags) parameter of the Wakelock object being created. Defined as follows:(1) Partial_wake_lock (CPU Open)

First, screen settings 1. Under the Standby page, click the "Application" icon. 2. Click the "Set" icon. 3. Click on "My Device" and select "Show". 4. Click on "Brightness". 5. "Automatic Brightness" does not tick, manually adjust the brightness. 6. Click "OK". 7. Click "Screen Auto Close". 8. Select the automatic screen shutdown time. second, application settings Check the application you are using. The battery