WidgetPreviewLoader.java 文件源码

private Bitmap generatePreview(Launcher launcher, WidgetItem item, Bitmap recycle,
        int previewWidth, int previewHeight) {
    if (item.widgetInfo != null) {
        return generateWidgetPreview(launcher, item.widgetInfo,
                previewWidth, recycle, null);
    } else {
        return generateShortcutPreview(launcher, item.activityInfo,
                previewWidth, previewHeight, recycle);
    }
}