android 优化耗电量

作为app开发者，或许很少有人会注意app对电量的损耗，但是用户对电量可是很敏感的，app做好电量损耗的优化会为自己的app加分不少。

如果是一个好的负责任的开发者，就应该限制app对电量的影响，当没有网络连接的时候，禁用后台服务更新，当电池电量低的时候减少更新的频率，确保自己的app对电池的影响降到最低。当电池充电或者电量比较饱和时，可以最大限度的发挥app的刷新率

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1<receiverandroid:name=".PowerConnectReceiver">

2  <intent-filter>

3    <actionandroid:name="android.intent.action.ACTION_POWER_CONNECTED"/>

4    <actionandroid:name="android.intent.action.ACTION_POWER_DISCONNECTED"/>

5  </intent-filter>

6</receiver>

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01public class PowerConnectionReceiver extendsBroadcastReceiver {

02    @Override

03    publicvoid onReceive(Context context, Intent intent) { 

04        intstatus = intent.getIntExtra(BatteryManager.EXTRA_STATUS, -1);

05        booleanisCharging = status == BatteryManager.BATTERY_STATUS_CHARGING ||

06                            status == BatteryManager.BATTERY_STATUS_FULL;

07      

08        intchargeFlag = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);

09        booleanusbCharge = chargeFlag == BATTERY_PLUGGED_USB;

10        booleanacCharge = chargeFlag == BATTERY_PLUGGED_AC;

11    }

12}

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1//获取程序是否充电

2  

3int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS,-1);

4  

5boolean isCharging = status == BatteryManager.BATTERY_STATUS_CHARGING ||status == BatteryManager.BATTERY_STATUS_FULL;

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1// 充电方式，usb还是电源

2int chargeFlag = battery.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);

3boolean usbCharge = chargeFlag == BATTERY_PLUGGED_USB;

4boolean acCharge = chargeFlag == BATTERY_PLUGGED_AC;

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1不断的检测电量也会影响电池的使用时间，我们可以这样做

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1<receiverandroid:name=".BatteryLevelReceiver"> 

2<intent-filter>   

3<actionandroid:name="android.intent.action.ACTION_BATTERY_LOW"/>   <actionandroid:name="android.intent.action.ACTION_BATTERY_OKAY"/>   </intent-filter> 

4</receiver>

当电量低或者满时会触发

有时间再写确定和监测连接状态