Android 电池状态侦听显示 电量 充电动态显示

Android 电池状态侦听显示 电量 充电动态显示

想使用Android系统的电池侦听和系统的电池图片；

引入源代码中的两个xml文件（这里我在android2.2的jar包中找不到，所以才引入，源代码路径：C:\android-sdk-windows\platforms\android-8\data\res\drawable），之后会发现stat_sys_battery.xml报错，所以我就将下图

 

1.这些图引入到我的drawable目录下，然后将stat_sys_battery.xml中的图片引入路径更改，如下：

1. <level-list xmlns:android="http://schemas.android.com/apk/res/android">   
2.     <item android:maxLevel="4" android:drawable="@drawable/stat_sys_battery_0" />   
3.     <item android:maxLevel="14" android:drawable="@drawable/stat_sys_battery_10" />   
4.     <item android:maxLevel="29" android:drawable="@drawable/stat_sys_battery_20" />   
5.     <item android:maxLevel="49" android:drawable="@drawable/stat_sys_battery_40" />   
6.     <item android:maxLevel="69" android:drawable="@drawable/stat_sys_battery_60" />   
7.     <item android:maxLevel="89" android:drawable="@drawable/stat_sys_battery_80" />   
8.     <item android:maxLevel="100" android:drawable="@drawable/stat_sys_battery_100" />   
9. </level-list>  

2.接下来是在activity中的操作：

   创建一个IntentFilter

1. <span style="white-space:pre">    </span>private IntentFilter mIntentFilter;   

    在oncreate的方法中：加入：

1. <span style="white-space:pre">    </span>//电池相关    
2. <span style="white-space:pre">    </span>mIntentFilter = new IntentFilter();    
3. <span style="white-space:pre">    </span>mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);   

3.接收广播

1. <span style="white-space:pre">    </span>//声明消息处理过程     
2.        private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {    
3.            @Override    
4.            public void onReceive(Context context, Intent intent) {    
5.                String action = intent.getAction();    
6.                int status = intent.getIntExtra("status", 0);   
7.                int health = intent.getIntExtra("health", 0);   
8.                boolean present = intent.getBooleanExtra("present", false);   
9.                int level = intent.getIntExtra("level", 0);   
10.                int scale = intent.getIntExtra("scale", 0);   
11.                int icon_small = intent.getIntExtra("icon-small", 0);   
12.                int plugged = intent.getIntExtra("plugged", 0);   
13.                int voltage = intent.getIntExtra("voltage", 0);   
14.                int temperature = intent.getIntExtra("temperature", 0);   
15.                String technology = intent.getStringExtra("technology");   
16.                String statusString = "";   
17.                switch (status) {   
18.                case BatteryManager.BATTERY_STATUS_UNKNOWN:   
19.                    statusString = "unknown";   
20.                    break;   
21.                case BatteryManager.BATTERY_STATUS_CHARGING:   
22.                    statusString = "charging";   
23.                    battery_image.setImageResource(R.drawable.stat_sys_battery_charge);   
24.                    battery_image.getDrawable().setLevel(level);   
25.                    break;   
26.                case BatteryManager.BATTERY_STATUS_DISCHARGING:   
27.                    statusString = "discharging";   
28.                    battery_image.setImageResource(R.drawable.stat_sys_battery);   
29.                    battery_image.getDrawable().setLevel(level);   
30.                    break;   
31.                case BatteryManager.BATTERY_STATUS_NOT_CHARGING:   
32.                    statusString = "not charging";   
33.                    break;   
34.                case BatteryManager.BATTERY_STATUS_FULL:   
35.                    statusString = "full";   
36.                    break;   
37.                }   
38.                String healthString = "";   
39.                switch (health) {   
40.                case BatteryManager.BATTERY_HEALTH_UNKNOWN:   
41.                    healthString = "unknown";   
42.                    break;   
43.                case BatteryManager.BATTERY_HEALTH_GOOD:   
44.                    healthString = "good";   
45.                    break;   
46.                case BatteryManager.BATTERY_HEALTH_OVERHEAT:   
47.                    healthString = "overheat";   
48.                    break;   
49.                case BatteryManager.BATTERY_HEALTH_DEAD:   
50.                    healthString = "dead";   
51.                    break;   
52.                case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:   
53.                    healthString = "voltage";   
54.                    break;   
55.                case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE:   
56.                    healthString = "unspecified failure";   
57.                    break;   
58.                }   
59.                String acString = "";   
60.                switch (plugged) {   
61.                case BatteryManager.BATTERY_PLUGGED_AC:   
62.                    acString = "plugged ac";   
63.                    break;   
64.                case BatteryManager.BATTERY_PLUGGED_USB:   
65.                    acString = "plugged usb";   
66.                    break;   
67.                }   
68.                Log.i("cat", statusString);   
69.                Log.i("cat", healthString);   
70.                Log.i("cat", String.valueOf(present));   
71.                Log.i("cat", String.valueOf(level));   
72.                Log.i("cat", String.valueOf(scale));   
73.                Log.i("cat", String.valueOf(icon_small));   
74.                Log.i("cat", acString);   
75.                Log.i("cat", String.valueOf(voltage));   
76.                Log.i("cat", String.valueOf(temperature));   
77.                Log.i("cat", technology);   
78.                //要看看是不是我们要处理的消息     
79.                if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {               
80.                    //电池电量，数字     
81.                    Log.d("Battery", "" + intent.getIntExtra("level", 0));                   
82.                    //电池最大容量     
83.                    Log.d("Battery", "" + intent.getIntExtra("scale", 0));                   
84.                    //电池伏数     
85.                    Log.d("Battery", "" + intent.getIntExtra("voltage", 0));                   
86.                    //电池温度     
87.                    Log.d("Battery", "" + intent.getIntExtra("temperature", 0));    
88.                    //电池状态，返回是一个数字     
89.                    // BatteryManager.BATTERY_STATUS_CHARGING 表示是充电状态     
90.                    // BatteryManager.BATTERY_STATUS_DISCHARGING 放电中     
91.                    // BatteryManager.BATTERY_STATUS_NOT_CHARGING 未充电     
92.                    // BatteryManager.BATTERY_STATUS_FULL 电池满     
93.                    Log.d("Battery", "ss" + intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_CHARGING));    
94.                    //充电类型 BatteryManager.BATTERY_PLUGGED_AC 表示是充电器，不是这个值，表示是 USB     
95.                    Log.d("Battery", "" + intent.getIntExtra("plugged", 0));    
96.                    //电池健康情况，返回也是一个数字     
97.                    //BatteryManager.BATTERY_HEALTH_GOOD 良好     
98.                    //BatteryManager.BATTERY_HEALTH_OVERHEAT 过热     
99.                    //BatteryManager.BATTERY_HEALTH_DEAD 没电     
100.                    //BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE 过电压     
101.                    //BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE 未知错误     
102.                    Log.d("Battery", "" + intent.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN));    
103.                }    
104.            }    
105.        };   

    这里真正处理图片变换的是以下几句话：其他的我是在做备注

1. <span style="font-weight: bold; white-space: pre; ">  </span>switch (status) {   
2.                case BatteryManager.BATTERY_STATUS_UNKNOWN:   
3.                    statusString = "unknown";   
4.                    break;   
5.                case BatteryManager.BATTERY_STATUS_CHARGING:   
6.                    statusString = "charging";   
7.                    battery_image.setImageResource(R.drawable.stat_sys_battery_charge);   
8.                    battery_image.getDrawable().setLevel(level);   
9.                    break;   
10.                case BatteryManager.BATTERY_STATUS_DISCHARGING:   
11.                    statusString = "discharging";   
12.                    battery_image.setImageResource(R.drawable.stat_sys_battery);  
13.                    battery_image.getDrawable().setLevel(level);   
14.                    break;   
15.                case BatteryManager.BATTERY_STATUS_NOT_CHARGING:   
16.                    statusString = "not charging";   
17.                    break;   
18.                case BatteryManager.BATTERY_STATUS_FULL:   
19.                    statusString = "full";   
20.                    break;   
21.                }  

4.在onResume方法中注册消息处理器 

1. <span style="white-space:pre">    </span>registerReceiver(mIntentReceiver, mIntentFilter);  

5.在onPause方法中注销

1. <span style="white-space:pre">    </span>unregisterReceiver(mIntentReceiver);