Android : How to use registerReceiver in BroadcastReceiver

Question

I want to perform some task when I get ACTION_BOOT_COMPLETED intent, i'm using following code to check if device is plugged in but I get method is undefined for the type BootReceiver at registerReceiver. Can anyone find the solution? here is what i'm doing.

public class BootReceiver extends BroadcastReceiver {

@Override
public void onReceive(final Context context, Intent intent) {

    if (intent.getAction().equalsIgnoreCase(Intent.ACTION_BOOT_COMPLETED)) {

    if(isCharging())
    doSomething();  //something to perform after boot if plugged in

        }



        public boolean isCharging() {
    IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
    Intent batteryStatus = registerReceiver(null, filter); //getting error here

    boolean strState;

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

    switch (chargeState) {
        case BatteryManager.BATTERY_STATUS_CHARGING:
        case BatteryManager.BATTERY_STATUS_FULL:
            strState = true;
            break;
        default:
            strState = false;
    }
    return strState;

    }

}

score 3 · Accepted Answer · edited May 23 '17 at 12:02

3

Call registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED)). This will return an Intent that has extras defined on BatteryManager to let you know if it is plugged in or not.

This works because Intent.ACTION_BATTERY_CHANGED is a sticky broadcast.

Answer picked from Check if device is plugged in by CommonsWare

UPDATE: Please call context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED)); this method is defined in context

edited May 23 '17 at 12:02

Community

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answered Jan 27 '16 at 07:08

Mustansar Saeed

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i'm already using it, check the code in question once again, I get same error – Aahil Jan 27 '16 at 07:16

Android : How to use registerReceiver in BroadcastReceiver

1 Answers1