电量控制插件

这个插件是属于设置的一部分，可以在

1packages\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：

1vim 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 */

04public 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。

01switch (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}