引用:http://blog.csdn.net/ouyangtianhan/article/details/7197987
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:
- <level-list xmlns:Android="http://schemas.android.com/apk/res/android">
-
<item android:maxLevel="4" android:drawable="@drawable/stat_sys_battery_0" />
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<item android:maxLevel="14" android:drawable="@drawable/stat_sys_battery_10" />
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<item android:maxLevel="29" android:drawable="@drawable/stat_sys_battery_20" />
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<item android:maxLevel="49" android:drawable="@drawable/stat_sys_battery_40" />
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<item android:maxLevel="69" android:drawable="@drawable/stat_sys_battery_60" />
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<item android:maxLevel="89" android:drawable="@drawable/stat_sys_battery_80" />
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<item android:maxLevel="100" android:drawable="@drawable/stat_sys_battery_100" />
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</level-list>
2.接下来是在activity中的操作:
创建一个IntentFilter
- <span style="white-space:pre"> </span>private IntentFilter mIntentFilter;
在oncreate的方法中:加入:
- <span style="white-space:pre"> </span>
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<span style="white-space:pre"> </span>mIntentFilter = new IntentFilter();
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<span style="white-space:pre"> </span>mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
3.接收广播
- <span style="white-space:pre"> </span>
-
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
- String action = intent.getAction();
-
int status = intent.getIntExtra("status", 0);
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int health = intent.getIntExtra("health", 0);
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boolean present = intent.getBooleanExtra("present", false);
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int level = intent.getIntExtra("level", 0);
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int scale = intent.getIntExtra("scale", 0);
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int icon_small = intent.getIntExtra("icon-small", 0);
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int plugged = intent.getIntExtra("plugged", 0);
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int voltage = intent.getIntExtra("voltage", 0);
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int temperature = intent.getIntExtra("temperature", 0);
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String technology = intent.getStringExtra("technology");
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String statusString = "";
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switch (status) {
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case BatteryManager.BATTERY_STATUS_UNKNOWN:
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statusString = "unknown";
-
break;
-
case BatteryManager.BATTERY_STATUS_CHARGING:
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statusString = "charging";
- battery_image.setImageResource(R.drawable.stat_sys_battery_charge);
- battery_image.getDrawable().setLevel(level);
-
break;
-
case BatteryManager.BATTERY_STATUS_DISCHARGING:
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statusString = "discharging";
- battery_image.setImageResource(R.drawable.stat_sys_battery);
- battery_image.getDrawable().setLevel(level);
-
break;
-
case BatteryManager.BATTERY_STATUS_NOT_CHARGING:
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statusString = "not charging";
-
break;
-
case BatteryManager.BATTERY_STATUS_FULL:
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statusString = "full";
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break;
- }
-
String healthString = "";
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switch (health) {
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case BatteryManager.BATTERY_HEALTH_UNKNOWN:
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healthString = "unknown";
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break;
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case BatteryManager.BATTERY_HEALTH_GOOD:
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healthString = "good";
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break;
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case BatteryManager.BATTERY_HEALTH_OVERHEAT:
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healthString = "overheat";
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break;
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case BatteryManager.BATTERY_HEALTH_DEAD:
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healthString = "dead";
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break;
-
case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:
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healthString = "voltage";
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break;
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case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE:
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healthString = "unspecified failure";
-
break;
- }
-
String acString = "";
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switch (plugged) {
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case BatteryManager.BATTERY_PLUGGED_AC:
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acString = "plugged ac";
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break;
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case BatteryManager.BATTERY_PLUGGED_USB:
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acString = "plugged usb";
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break;
- }
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Log.i("cat", statusString);
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Log.i("cat", healthString);
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Log.i("cat", String.valueOf(present));
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Log.i("cat", String.valueOf(level));
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Log.i("cat", String.valueOf(scale));
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Log.i("cat", String.valueOf(icon_small));
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Log.i("cat", acString);
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Log.i("cat", String.valueOf(voltage));
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Log.i("cat", String.valueOf(temperature));
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Log.i("cat", technology);
-
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if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {
-
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Log.d("Battery", "" + intent.getIntExtra("level", 0));
-
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Log.d("Battery", "" + intent.getIntExtra("scale", 0));
-
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Log.d("Battery", "" + intent.getIntExtra("voltage", 0));
-
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Log.d("Battery", "" + intent.getIntExtra("temperature", 0));
-
-
-
-
-
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Log.d("Battery", "ss" + intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_CHARGING));
-
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Log.d("Battery", "" + intent.getIntExtra("plugged", 0));
-
-
-
-
-
-
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Log.d("Battery", "" + intent.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN));
- }
- }
- };
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
- <span style="font-weight: bold; white-space: pre; "> </span>switch (status) {
- case BatteryManager.BATTERY_STATUS_UNKNOWN:
-
statusString = "unknown";
- break;
- case BatteryManager.BATTERY_STATUS_CHARGING:
-
statusString = "charging";
- battery_image.setImageResource(R.drawable.stat_sys_battery_charge);
- battery_image.getDrawable().setLevel(level);
- break;
- case BatteryManager.BATTERY_STATUS_DISCHARGING:
-
statusString = "discharging";
- battery_image.setImageResource(R.drawable.stat_sys_battery);
- battery_image.getDrawable().setLevel(level);
- break;
- case BatteryManager.BATTERY_STATUS_NOT_CHARGING:
-
statusString = "not charging";
- break;
- case BatteryManager.BATTERY_STATUS_FULL:
-
statusString = "full";
- break;
- }
4.在onResume方法中注册消息处理器
- <span style="white-space:pre"> </span>registerReceiver(mIntentReceiver, mIntentFilter);
5.在onPause方法中注销
- <span style="white-space:pre"> </span>unregisterReceiver(mIntentReceiver);