IconThemer.java 文件源码

private Drawable getRoundIcon(Context context,String packageName, int iconDpi) {

        mPackageManager = context.getPackageManager();

        try {
            Resources resourcesForApplication = mPackageManager.getResourcesForApplication(packageName);
            AssetManager assets = resourcesForApplication.getAssets();
            XmlResourceParser parseXml = assets.openXmlResourceParser("AndroidManifest.xml");
            int eventType;
            while ((eventType = parseXml.nextToken()) != XmlPullParser.END_DOCUMENT)
                if (eventType == XmlPullParser.START_TAG && parseXml.getName().equals("application"))
                    for (int i = 0; i < parseXml.getAttributeCount(); i++)
                        if (parseXml.getAttributeName(i).equals("roundIcon"))
                            return resourcesForApplication.getDrawableForDensity(Integer.parseInt(parseXml.getAttributeValue(i).substring(1)), iconDpi, context.getTheme());
            parseXml.close();
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }
        return null;
    }