added some more battery info.

BroadCastDemo2/app/src/main/java/edu/cs4730/broadcastdemo2/MainFragment.java

@@ -4,6 +4,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.os.BatteryManager;
 import android.os.Bundle;
 import androidx.fragment.app.Fragment;
 import android.util.Log;
@@ -42,15 +43,15 @@ public void onResume() {
  myIF.addAction("android.intent.action.ACTION_POWER_DISCONNECTED");
  myIF.addAction("android.intent.action.BATTERY_LOW");
  myIF.addAction("android.intent.action.BATTERY_OKAY");
- getActivity().registerReceiver(mReceiver, myIF);
+ getContext().registerReceiver(mReceiver, myIF);
  Log.v(TAG, "receiver should be registered");
  }
 
  @Override
  public void onPause() { //or onDestory()
  // Unregister since the activity is not visible.
 
- getActivity().unregisterReceiver(mReceiver);
+ getContext().unregisterReceiver(mReceiver);
  Log.v(TAG, "receiver should be unregistered");
  super.onPause();
 
@@ -62,6 +63,29 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
  // Inflate the layout for this fragment
  View myView = inflater.inflate(R.layout.fragment_main, container, false);
  logger = myView.findViewById(R.id.textView1);
+
+ //manual check.
+ IntentFilter ifilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
+ Intent batteryStatus = getContext().registerReceiver(null, ifilter);
+ int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS, -1);
+ boolean isCharging = status == BatteryManager.BATTERY_STATUS_CHARGING ||
+ status == BatteryManager.BATTERY_STATUS_FULL;
+
+ int level = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
+ int scale = batteryStatus.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
+ float batteryPct = level * 100 / (float)scale;
+
+ if (isCharging) {
+ logger.setText("status is Charging");
+ // How are we charging?
+ int chargePlug = batteryStatus.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
+ boolean usbCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_USB;
+ if (usbCharge) logger.append("\n via the usb chargerbattery at "+ batteryPct);
+ boolean acCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_AC;
+ if (acCharge) logger.append("\n via the AC chargerbattery at "+ batteryPct);
+ } else {
+ logger.setText("status is not Charging. battery at "+ batteryPct);
+ }
  return myView;
  }
 
@@ -85,21 +109,26 @@ public void onReceive(Context context, Intent intent) {
 
  Log.wtf("myReceiver", "received an intent");
  String info = "\n something wrong.";
+ int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
+ int scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
+ float batteryPct = level * 100 / (float)scale;
+
  int mStatus = 0;
  if (intent.getAction().equals(Intent.ACTION_BATTERY_LOW)) { //battery is low!
- info = "\n batter low. should shut down things.";
+
+ info = "\n batter low. should shut down things. battery at " + batteryPct;
  mStatus = 1;
  Log.v("myReceiver", "battery low");
  } else if (intent.getAction().equals(Intent.ACTION_BATTERY_OKAY)) { //battery is now ok!
- info = "\n battery Okay. ";
+ info = "\n battery Okay. " + batteryPct;
  mStatus = 2;
  Log.v("myReceiver", "battery okay");
  } else if (intent.getAction().equals(Intent.ACTION_POWER_CONNECTED)) { //battery is charging.
- info = "\n Power connected, so phone is charging.";
+ info = "\n Power connected, so phone is charging." + batteryPct;
  mStatus = 3;
  Log.v("myReceiver", "ac on");
  } else if (intent.getAction().equals(Intent.ACTION_POWER_DISCONNECTED)) { //power has been disconnected.
- info = "\n Power disconnected.";
+ info = "\n Power disconnected." + batteryPct;
  mStatus = 4;
  Log.v("myReceiver", "ac off");
  }