Monthly Archives: May 2016

Using Loaders in Android Using SimpleCursorAdapter in Android.

By | May 20, 2016

Introduced in Android 3.0, loaders make it easy to asynchronously load data in an activity or fragment. Loaders have these characteristics: They are available to every Activity and Fragment. They provide asynchronous loading of data. They monitor the source of their data and deliver new results when the content changes. They automatically reconnect to the last loader’s cursor… Read More »

Filtering a RecyclerView with Custom Objects.

By | May 13, 2016

This demo will show you how you can filter a RecyclerView with your Custom Objects. If you are new to RecyclerView, then please go through this post to get a glance. Check out the Demo Video ( 7 seconds) Here I am using a CustomClass called “ListItem” which has three members. ListItem MainActivity We have added around 10000… Read More »

Using NSOperationQueue in iOS to do Serial/Concurrent Operations.

By | May 7, 2016

NSOperationQueue is used to do scheduled operations in iOS. You can customize NSOperationQueue to do Concurrent/Serial operations. You can set NSOperationQueue maxConcurrentOperationCount to tell it to do how many operations to execute at a time. Lets see this with an example [Swift Version] In the above example, we set maxConcurrentOperationCount to 1, telling it to execute one by… Read More »

Solution for CoreData Multithreading problem.

By | May 1, 2016

This post is for people who are at least familiar with CoreData. But just knowing is not everything.. CoreData creates problems when you access them from different threads… Most common problems are listed below CoreData: error: Serious application error. Exception was caught during Core Data change processing. This is usually a bug within an observer of NSManagedObjectContextObjectsDidChangeNotification. -[__NSCFSet… Read More »