Android 删除/定制桌面电量控制插件

这个插件是属于设置的一部分，可以在

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：

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

/**
* Provides control of power-related settings from a widget.
*/
public class SettingsAppWidgetProvider extends AppWidgetProvider {
static final String TAG = "SettingsAppWidgetProvider";

static final ComponentName THIS_APPWIDGET =
new ComponentName("com.android.settings",
"com.android.settings.widget.SettingsAppWidgetProvider");

private static LocalBluetoothManager sLocalBluetoothManager = null;
private static TelephonyManager mTelephonyManager = null;

private static final int BUTTON_WIFI = 0;
private static final int BUTTON_BRIGHTNESS = 1;
private static final int BUTTON_SYNC = 2;
private static final int BUTTON_GPS = 3;
private static final int BUTTON_BLUETOOTH = 4;
//  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

/**
* Receives and processes a button pressed intent or state change.
*
* @param context
* @param intent  Indicates the pressed button.
*/
@Override
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(intent.getAction())) {
sWifiState.onActualStateChange(context, intent);
} else if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(intent.getAction())) {
sBluetoothState.onActualStateChange(context, intent);
} else if (intent.hasCategory(Intent.CATEGORY_ALTERNATIVE)) {
Uri data = intent.getData();
int buttonId = Integer.parseInt(data.getSchemeSpecificPart());
if (buttonId == BUTTON_WIFI) {
sWifiState.toggleState(context);
} else if (buttonId == BUTTON_BRIGHTNESS) {
toggleBrightness(context);
} else if (buttonId == BUTTON_SYNC) {
toggleSync(context);
} else if (buttonId == BUTTON_GPS) {
toggleGps(context);
} else if (buttonId == BUTTON_BLUETOOTH) {
sBluetoothState.toggleState(context);
}
/* 删去相应的事件处理代码。
else if (buttonId == BUTTON_MOBILE) {
toggleMobile(context);
}*/
} else if (TelephonyIntents.ACTION_MODEM_POWER_STATE_CHANGED.equals(intent.getAction())) {
} else {
// Don't fall-through to updating the widget.  The Intent
// was something unrelated or that our super class took
// care of.
return;
}

3. 重新载入图片

/**
* Load image for given widget and build {@link RemoteViews} for it.
*/
static RemoteViews buildUpdate(Context context, int appWidgetId) {
RemoteViews views = new RemoteViews(context.getPackageName(),
R.layout.widget);
views.setOnClickPendingIntent(R.id.btn_wifi, getLaunchPendingIntent(context, appWidgetId,
BUTTON_WIFI));
views.setOnClickPendingIntent(R.id.btn_brightness,
getLaunchPendingIntent(context,
appWidgetId, BUTTON_BRIGHTNESS));
views.setOnClickPendingIntent(R.id.btn_sync,
getLaunchPendingIntent(context,
appWidgetId, BUTTON_SYNC));
views.setOnClickPendingIntent(R.id.btn_bluetooth,
getLaunchPendingIntent(context,
appWidgetId, BUTTON_BLUETOOTH));

/*   views.setOnClickPendingIntent(R.id.btn_mobile,
getLaunchPendingIntent(context,
appWidgetId, BUTTON_MOBILE)); */

updateButtons(views, context);
return views;
}

4. 还有这个，全注释掉吧。

switch (getMobileState(context)) {
case STATE_DISABLED:
views.setImageViewResource(R.id.img_mobile, R.drawable.ic_appwidget_settings_mobile_off);
views.setImageViewResource(R.id.ind_mobile, R.drawable.appwidget_settings_ind_off_c);
break;
case STATE_ENABLED:
views.setImageViewResource(R.id.img_mobile, R.drawable.ic_appwidget_settings_mobile_on);
views.setImageViewResource(R.id.ind_mobile, R.drawable.appwidget_settings_ind_on_c);
break;
case STATE_INTERMEDIATE:
views.setImageViewResource(R.id.img_mobile, R.drawable.ic_appwidget_settings_mobile_off);
views.setImageViewResource(R.id.ind_mobile, R.drawable.appwidget_settings_ind_mid_c);
break;
}