Android实现更换皮肤功能

public static void setWidgetTheme(Context context, View view, String resName){

String pkgName = PreferenceManager.getDefaultSharedPreferences(context).getString(PREF_KEY_THEME_PACKAGE, context.getPackageName());

Resources themeResources = null;

try {

themeResources = context.getPackageManager().getResourcesForApplication(pkgName);

} catch (NameNotFoundException e) {

e.printStackTrace();

}

if(themeResources == null){

try {

pkgName = context.getPackageName();

themeResources = context.getPackageManager().getResourcesForApplication(pkgName);

saveThemePackageName(context, pkgName);

} catch (NameNotFoundException e) {

e.printStackTrace();

}

}

if(themeResources == null){

return;

}

try {

int resource_id = themeResources.getIdentifier(resName, "drawable", pkgName);

if(resource_id != 0){

Drawable drawable = themeResources.getDrawable(resource_id);

if(view != null){

view.setBackgroundDrawable(drawable);

}else{

Log.w(TAG, "View is null! resName = " + resName);

}

}

} catch(Resources.NotFoundException e){

e.printStackTrace();

}

}