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package com.example.hellow;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryManager;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends Activity {
TextView plugged;
TextView status;
TextView level;
private BroadcastReceiver receiver = new BroadcastReceiver(){
private Intent intent;
public void onReceive(Context context, Intent intent){
this.intent = intent;
plugged.setText(getPlugged());
status.setText(getStatus());
level.setText(getLevel());
}
public String getPlugged(){
int plug = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0);
String pluggedStr = "";
switch(plug){
case BatteryManager.BATTERY_PLUGGED_AC :
pluggedStr = "BATTERY_PLUGGED_AC";
break;
case BatteryManager.BATTERY_PLUGGED_USB :
pluggedStr = "BATTERY_PLUGGED_USB";
break;
} return pluggedStr;
}
public String getStatus(){
int plug = intent.getIntExtra(BatteryManager.EXTRA_STATUS, 0);
String statusStr = "";
switch(plug){
case BatteryManager.BATTERY_STATUS_CHARGING :
statusStr = "BATTERY_STATUS_CHARGING";
break;
case BatteryManager.BATTERY_STATUS_DISCHARGING :
statusStr = "BATTERY_STATUS_DISCHARGING";
break;
case BatteryManager.BATTERY_STATUS_UNKNOWN :
statusStr = "BATTERY_STATUS_UNKNOWN";
break;
case BatteryManager.BATTERY_STATUS_FULL :
statusStr = "BATTERY_STATUS_FULL";
break;
case BatteryManager.BATTERY_STATUS_NOT_CHARGING :
statusStr = "BATTERY_STATUS_NOT_CHARGING";
break;
} return statusStr;
}
public String getLevel(){
int lv = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0);
String levelStr = "" + lv + "%";
return levelStr;
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.batterystatus);
plugged = (TextView)findViewById(R.id.txt_plugged);
status = (TextView)findViewById(R.id.txt_status);
level = (TextView)findViewById(R.id.txt_level);
//브로드캐스트 리시버를 등록
//첫번째 방법. manifest.xml에 등록
//두번째 방법. activity에서 registerReceiver() 등록
//배터리 상태가 변경되면
registerReceiver(receiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
}
@Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
unregisterReceiver(receiver);
}
}
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batterystatus.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/txt_plugged"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/txt_status"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/txt_level"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
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