如何在小部件列表中隐藏某个widget或者shortcut

小部件列表包括两种类型：widget和shortcut。如何在小部件列表中隐藏某个widget或者shortcut？例如隐藏设置的电量控制小部件(Power Control)？

路径 packages\apps\Launcher3\src\com\android\launcher3\AppsCustomizePagedView.java

<pre name="code" class="html"><span style="font-size:14px;">public void onPackagesUpdated(ArrayList<Object> widgetsAndShortcuts) {
        LauncherAppState app = LauncherAppState.getInstance();
        DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();

        // Get the list of widgets and shortcuts
        mWidgets.clear();
        if (LauncherLog.DEBUG) {
            LauncherLog.d(TAG, "updatePackages: widgetsAndShortcuts size = " + widgetsAndShortcuts.size());
        }
        for (Object o : widgetsAndShortcuts) {
            if (o instanceof AppWidgetProviderInfo) {
                AppWidgetProviderInfo widget = (AppWidgetProviderInfo) o;
                if (!app.shouldShowAppOrWidgetProvider(widget.provider)) {
                    continue;
                }
                widget.label = widget.label.trim();
                if (widget.minWidth > 0 && widget.minHeight > 0) {
                    // Ensure that all widgets we show can be added on a workspace of this size
                    int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget);
                    int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget);
                    int minSpanX = Math.min(spanXY[0], minSpanXY[0]);
                    int minSpanY = Math.min(spanXY[1], minSpanXY[1]);
                    if (minSpanX <= (int) grid.numColumns &&
                        minSpanY <= (int) grid.numRows) {
					<span style="color:#ff0000;">//hide widgets xxx20151230
					if(!widget.provider.getPackageName().equals("com.mediatek.videofavorites")){//add xxx
                        mWidgets.add(widget);
						}//add xxx</span>
                    } else {
                        Log.e(TAG, "Widget " + widget.provider + " can not fit on this device (" +
                              widget.minWidth + ", " + widget.minHeight + "), min span is (" + minSpanX + ", " + minSpanY + ")"
                              + "), span is (" + spanXY[0] + ", " + spanXY[1] + ")");
                    }
                } else {
                    LauncherLog.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" +
                                  widget.minWidth + ", " + widget.minHeight);
                }
            } else {             
      <span style="color:#ff0000;"> //Hide shortcut modify here
        ResolveInfo info=(ResolveInfo)o;//add xxx
      if(!info.activityInfo.packageName.equals("com.example.appwidget")){//xxx add
        // just add shortcuts
                mWidgets.add(o);
       }//xxx add</span>

               
            }
        }
        updatePageCountsAndInvalidateData();
    }</span>