Drupal comprises several layers of execution and it obviously consumes pretty much time to render content from dynamic PHP code. Caching is a key technique to maximize the performance of Drupal.
When you build Android app for an existing Drupal website which allows it's users to login using their social media account, it is important to include such features in your app as well.
The AmazonS3 module allows the drupal local file system to be replaced with S3, where the files can be uploaded or downloaded from S3. I used the following modules to achieve this:
In Drupal views, we have the option of exposing the filters to users. By default, the exposed filters are displayed as Select boxes. Recently in a multilingual project, there was a requirement to display Courses based on Language.
Nowadays twitter bootstrap theme has become famous among Drupal world due to its flexibility for responsive websites. It is very easy to apply responsive css to the web page by adding appropriate bootstrap classes.
Sometimes you could be in a fury when user picture gets deleted automatically with nothing being noticed as strange. Even this thread 935592 might not help you.