package com.example.androidbattery;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryManager;
import android.os.Bundle;
public class MainActivity extends ActionBarActivity {
Button btnReadBattery;
ImageView imageIcon;
TextView textBatteryStatus;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnReadBattery = (Button)findViewById(R.id.readbattery);
imageIcon = (ImageView)findViewById(R.id.icon);
textBatteryStatus = (TextView)findViewById(R.id.batterystatus);
btnReadBattery.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
textBatteryStatus.setText(readBattery());
}});
}
private String readBattery(){
StringBuilder sb = new StringBuilder();
IntentFilter batteryIntentFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
Intent batteryIntent = registerReceiver(null, batteryIntentFilter);
boolean present= batteryIntent.getExtras().getBoolean(BatteryManager.EXTRA_PRESENT);
sb.append("PRESENT: " + present + "\n");
int status = batteryIntent.getIntExtra(BatteryManager.EXTRA_STATUS, -1);
if(status == BatteryManager.BATTERY_STATUS_CHARGING){
sb.append("BATTERY_STATUS_CHARGING\n");
}
if(status == BatteryManager.BATTERY_STATUS_FULL){
sb.append("BATTERY_STATUS_FULL\n");
}
int plugged = batteryIntent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
if(plugged == BatteryManager.BATTERY_PLUGGED_USB){
sb.append("BATTERY_PLUGGED_USB\n");
}
if(plugged == BatteryManager.BATTERY_PLUGGED_AC){
sb.append("BATTERY_PLUGGED_AC\n");
}
int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
sb.append("LEVEL: " + level + "\n");
int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
sb.append("SCALE: " + scale + "\n");
int health = batteryIntent.getIntExtra(BatteryManager.EXTRA_HEALTH,0);
sb.append("health: " + convHealth(health) + "\n");
String technology = batteryIntent.getExtras().getString(BatteryManager.EXTRA_TECHNOLOGY);
sb.append("TECHNOLOGY: " + technology + "\n");
int temperature = batteryIntent.getIntExtra(BatteryManager.EXTRA_TEMPERATURE,0);
sb.append("TEMPERATURE: " + temperature + "\n");
int voltage = batteryIntent.getIntExtra(BatteryManager.EXTRA_VOLTAGE,0);
sb.append("VOLTAGE: " + voltage + "\n");
//I have no idea how to load the small icon from system resources!
int icon_small_resourceId = batteryIntent.getIntExtra(BatteryManager.EXTRA_ICON_SMALL,0);
sb.append("ICON_SMALL: " + icon_small_resourceId + "\n");
return sb.toString();
}
private String convHealth(int health){
String result;
switch(health){
case BatteryManager.BATTERY_HEALTH_COLD:
result = "BATTERY_HEALTH_COLD";
break;
case BatteryManager.BATTERY_HEALTH_DEAD:
result = "BATTERY_HEALTH_DEAD";
break;
case BatteryManager.BATTERY_HEALTH_GOOD:
result = "BATTERY_HEALTH_GOOD";
break;
case BatteryManager.BATTERY_HEALTH_OVERHEAT:
result = "BATTERY_HEALTH_OVERHEAT";
break;
case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:
result = "BATTERY_HEALTH_OVER_VOLTAGE";
break;
case BatteryManager.BATTERY_HEALTH_UNKNOWN:
result = "BATTERY_HEALTH_UNKNOWN";
break;
case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE:
result = "BATTERY_HEALTH_UNSPECIFIED_FAILURE";
break;
default:
result = "unkknown";
}
return result;
}
}
Keep using the layout in the post "Read battery status and level".
Next:
- Implement BroadcastReceiver to monitor change of Charging State and Battery Level
No comments:
Post a Comment