One of the app's power optimization tasks scheduled according to battery conditions

Here to talk about the task scheduling according to the current characteristics of the battery. For a power-hungry task, it needs to be done with a more abundant battery, and if the power is already withered, doing so will drain all the power.
Based on this, before doing such a task, obtain the current battery characteristics and make use of the battery characteristics to determine whether to perform the task.
Detailed explanations are as follows:
1 getting the current battery characteristics

/*gets the current battery status. Setting Broadcastreceiver to NULL will return the status of the current battery directly. */Intentfilter IFilter=NewIntentfilter (intent.action_battery_changed); Intent Batterystatus= Registerreceiver (NULL, IFilter); /*** Battery charge status * public static final int battery_status_unknown = 1; Unknown state * public static final int battery_status_charging = 2; Charging in * public static final int battery_status_discharging = 3; Discharge in * public static final int battery_status_not_charging = 4; Not pure Power * public static final int battery_status_full = 5; State of full power*/        intStatus = Batterystatus.getintextra (Batterymanager.extra_status,-1); /*** Battery Charging mode, if the phone is charging the situation, you can do some power consumption, where AC charging can be used to the maximum. Second USB charging * public static final int battery_plugged_usb = 2; USB Charging * public static final int battery_plugged_wireless = 4; Wireless Charging * public static final int battery_plugged_ac = 1; AC charging, alternating current charging*/        intChargeplug = Batterystatus.getintextra (batterymanager.extra_plugged, 1); /*** Battery charge level*/        intLevel = Batterystatus.getintextra (Batterymanager.extra_level,-1); intScale = Batterystatus.getintextra (Batterymanager.extra_scale,-1); floatbatterypct = Level/(float) scale; /*** public static final int battery_health_unknown = 1;    Health status Unknown * public static final int battery_health_good = 2;  Health * public static final int battery_health_overheat = 3;    Overheat * public static final int battery_health_dead = 4;  No electricity * public static final int battery_health_over_voltage = 5; OVER voltage * public static final int battery_health_unspecified_failure = 6; Undefined error * public static final int battery_health_cold = 7; Cooling*/        intHealth = Batterystatus.getintextra (Batterymanager.extra_health,-1);

As for the task that should be performed at that time, I think the reader will be able to tell the difference as long as the task is not battery_health_dead.

2 Monitor battery charge status. Battery charging is often a good time to work, when you do, electricity can meet
Register for monitoring

<receiver android:name= ". Battertyconnectreceiver ">        <intent-filter>            <!--phone link charging or disconnection caused by change--            <action android: Name= "Android.intent.action.ACTION_POWER_CONNECTED"/>             <action android:name= " Android.intent.action.ACTION_POWER_DISCONNECTED "/>        </intent-filter>    </receiver>

Receive broadcasts

 Public classBattertyconnectreceiverextendsBroadcastreceiver {@Override Public voidOnReceive (Context context, Intent Intent) {intStatus = Intent.getintextra (Batterymanager.extra_status,-1); if(Status = =batterymanager.battery_status_charging) {            //charging status, good timing}Else if(Status = =batterymanager.battery_status_not_charging) {            //Disconnect Charging Status            }        }}

3 Monitor Battery low power change status
Register for monitoring

<receiver android:name= ". Batterylevelreceiver ">        <intent-filter>            <!--when the power entry is low or when the power is not enough to enter the foot.-            <action Android:name= "Android.intent.action.ACTION_BATTERY_LOW"/>            <action android:name= " Android.intent.action.ACTION_BATTERY_OKAY "/>        </intent-filter>    </receiver>

Receive broadcasts

 Public classBatterylevelreceiverextendsBroadcastreceiver {@Override Public voidOnReceive (Context context, Intent Intent) {String action=intent.getaction (); if(Action_battery_low.equals (ACTION)) {//the power goes to the stall, do the task state save}Else if(Action_battery_okay.equals (ACTION)) {//The power goes to sufficient gear            }        }}

The above API is a basic judgment on battery characteristics. Need to do the right thing in the right battery state

One of the app's power optimization tasks scheduled according to battery conditions