BroadcastReceiver之BatteryManager

使用动态注册监听系统广播(电池的广播)

 当电池时间改变的时候系统将发出广播,使用 下面的来注册(不能在manifest中声明)来监听到变化,做出相应的变化

IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(receiver, filter);

 

 

 1 public class BatteryReceiverDemo extends Activity {
 2     public static final String TAG = "Battery Receiver Debug";
 3 
 4     TextView show = null;
 5     TextView statusTV;
 6     BatteryReceiver receiver = new BatteryReceiver();
 7 
 8     public void onCreate(Bundle bundle) {
 9         super.onCreate(bundle);
10         setContentView(R.layout.battery);
11         show = (TextView) findViewById(R.id.show);
12         statusTV = (TextView) findViewById(R.id.status);
13         Log.v(TAG, "onCreate()");
14 
15     }
16 
17     public void onResume() {
18         super.onResume();
19         IntentFilter filter = new IntentFilter();
20         filter.addAction(Intent.ACTION_BATTERY_CHANGED);
21         registerReceiver(receiver, filter);
22         Log.v(TAG, "registerReceiver OK ");
23     }
24 
25     public void onPause() {
26         super.onPause();
27         unregisterReceiver(receiver);// 解除注册广播
28         Log.v(TAG, "unregisterReceiver OK ");
29     }
30 
31     public class BatteryReceiver extends BroadcastReceiver {
32         public void onReceive(Context context, Intent intent) {
33             Log.v(TAG + "  Receiver", "is receive ");
34             if (intent.getAction().equals(Intent.ACTION_BATTERY_CHANGED)) {
35                 Bundle bundle = intent.getExtras();
36                 int level = bundle.getInt(BatteryManager.EXTRA_LEVEL);
37                 int scale = bundle.getInt(BatteryManager.EXTRA_SCALE);
38                 int status = bundle.getInt(BatteryManager.EXTRA_STATUS);
39                 int health = bundle.getInt(BatteryManager.EXTRA_HEALTH);
40                 int present = bundle.getInt(BatteryManager.EXTRA_PRESENT);
41                 int voltage = bundle.getInt(BatteryManager.EXTRA_VOLTAGE);
42                 int temperature = bundle
43                         .getInt(BatteryManager.EXTRA_TEMPERATURE);
44                 int technology = bundle.getInt(BatteryManager.EXTRA_TECHNOLOGY);
45 
46                 show.setText("level is " + level + "\n scale is " + scale
47                         + "\n status is" + status + "\n health is " + health
48                         + "\n persend is " + present + "\n voltage is "
49                         + voltage + "\n temperature is " + temperature
50                         + "\n technology is " + technology);
51                 Log.v("receiver ", "level is " + level + "\n scale is " + scale
52                         + "\n status is" + status + "\n health is " + health
53                         + "\n persend is " + present + "\n voltage is "
54                         + voltage + "\n temperature is " + temperature
55                         + "\n technology is " + technology);
56 
57                 switch (status) {
58                 case BatteryManager.BATTERY_STATUS_CHARGING:
59                     Toast.makeText(context, "充电中", 4000).show();
60                     statusTV.setText("断充电中充电   BATTERY_STATUS_CHARGING  ");
61                     break;
62                 case BatteryManager.BATTERY_STATUS_DISCHARGING:
63                     statusTV.setText("断开充电   BATTERY_STATUS_DISCHARGING  ");
64                     break;
65                 case BatteryManager.BATTERY_STATUS_FULL:
66                     statusTV.setText("充电完成  BATTERY_STATUS_FULL");
67                     break;
68                 case BatteryManager.BATTERY_STATUS_NOT_CHARGING:
69                     statusTV.setText("没有充电  BATTERY_STATUS_NOT_CHARGING");
70                     break;
71                 case BatteryManager.BATTERY_STATUS_UNKNOWN:
72                     statusTV.setText("不知道状态   BATTERY_STATUS_UNKNOWN");
73                     break;
74                 default:
75                     break;
76                 }
77             }
78         }
79     }
80 }
View Code

 

posted @ 2013-12-02 19:11  act262  阅读(341)  评论(0)  编辑  收藏  举报