电量控制插件

这个插件是属于设置的一部分，可以在

1	packages\apps\Settings\res\drawable-hdpi

这个文件夹里面查看，呵呵，有没有看到上面目录的斜杠方向，懂吧。

这里找到一个文件名为：“ic_appwidget_settings_mobile_off” 的PNG文件。

而相关的文件是：

1	vim packages/apps/Settings/src/com/android/settings/widget/SettingsAppWidgetProvider.java

代码要修改有几个部分，可以搜索“BUTTON_MOBILE”，进行修改。

1. 是否显示这个部件

01

/**

02	* Provides control of power-related settings from a widget.

03

*/

04	public class SettingsAppWidgetProvider extends AppWidgetProvider {

05	static final String TAG = "SettingsAppWidgetProvider";

06

07	static final ComponentName THIS_APPWIDGET =

08	new ComponentName("com.android.settings",

09	"com.android.settings.widget.SettingsAppWidgetProvider");

10

11	private static LocalBluetoothManager sLocalBluetoothManager = null;

12	private static TelephonyManager mTelephonyManager = null;

13

14	private static final int BUTTON_WIFI = 0;

15	private static final int BUTTON_BRIGHTNESS = 1;

16	private static final int BUTTON_SYNC = 2;

17	private static final int BUTTON_GPS = 3;

18	private static final int BUTTON_BLUETOOTH = 4;

19	//  private static final int BUTTON_MOBILE = 5; /* 该产品没有通话功能。 */

2. 点击之后的事件处理

01

/**

02	* Receives and processes a button pressed intent or state change.

03

*

04	* @param context

05	* @param intent  Indicates the pressed button.

06

*/

07

@Override

08	public void onReceive(Context context, Intent intent) {

09	super.onReceive(context, intent);

10	if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(intent.getAction())) {

11	sWifiState.onActualStateChange(context, intent);

12	} else if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(intent.getAction())) {

13	sBluetoothState.onActualStateChange(context, intent);

14	} else if (intent.hasCategory(Intent.CATEGORY_ALTERNATIVE)) {

15	Uri data = intent.getData();

16	int buttonId = Integer.parseInt(data.getSchemeSpecificPart());

17	if (buttonId == BUTTON_WIFI) {

18	sWifiState.toggleState(context);

19	} else if (buttonId == BUTTON_BRIGHTNESS) {

20	toggleBrightness(context);

21	} else if (buttonId == BUTTON_SYNC) {

22	toggleSync(context);

23	} else if (buttonId == BUTTON_GPS) {

24	toggleGps(context);

25	} else if (buttonId == BUTTON_BLUETOOTH) {

26	sBluetoothState.toggleState(context);

27

}

28	/* 删去相应的事件处理代码。

29	else if (buttonId == BUTTON_MOBILE) {

30	toggleMobile(context);

31

}*/

32	} else if(TelephonyIntents.ACTION_MODEM_POWER_STATE_CHANGED.equals(intent.getAction())) {

33

} else {

34	// Don't fall-through to updating the widget.  The Intent

35	// was something unrelated or that our super class took

36	// care of.

37

return;

38

}

3. 重新载入图片

01

/**

02	* Load image for given widget and build {@link RemoteViews} for it.

03

*/

04	static RemoteViews buildUpdate(Context context, int appWidgetId) {

05	RemoteViews views = new RemoteViews(context.getPackageName(),

06	R.layout.widget);

07	views.setOnClickPendingIntent(R.id.btn_wifi, getLaunchPendingIntent(context, appWidgetId,

08	BUTTON_WIFI));

09	views.setOnClickPendingIntent(R.id.btn_brightness,

10	getLaunchPendingIntent(context,

11	appWidgetId, BUTTON_BRIGHTNESS));

12	views.setOnClickPendingIntent(R.id.btn_sync,

13	getLaunchPendingIntent(context,

14	appWidgetId, BUTTON_SYNC));

15	views.setOnClickPendingIntent(R.id.btn_bluetooth,

16	getLaunchPendingIntent(context,

17	appWidgetId, BUTTON_BLUETOOTH));

18

19	/*   views.setOnClickPendingIntent(R.id.btn_mobile,

20	getLaunchPendingIntent(context,

21	appWidgetId, BUTTON_MOBILE)); */

22

23	updateButtons(views, context);

24	return views;

25

}

  4. 还有这个，全注释掉吧。

01	switch (getMobileState(context)) {

02	case STATE_DISABLED:

03	views.setImageViewResource(R.id.img_mobile, R.drawable.ic_appwidget_settings_mobile_off);

04	views.setImageViewResource(R.id.ind_mobile, R.drawable.appwidget_settings_ind_off_c);

05

break;

06	case STATE_ENABLED:

07	views.setImageViewResource(R.id.img_mobile, R.drawable.ic_appwidget_settings_mobile_on);

08	views.setImageViewResource(R.id.ind_mobile, R.drawable.appwidget_settings_ind_on_c);

09

break;

10	case STATE_INTERMEDIATE:

11	views.setImageViewResource(R.id.img_mobile, R.drawable.ic_appwidget_settings_mobile_off);

12	views.setImageViewResource(R.id.ind_mobile, R.drawable.appwidget_settings_ind_mid_c);

13

break;

14

}