2.APP Components-activities/loadres

1. Loaders

Loaders make it easy-asynchronously load data in an activity or fragment. Loaders have these characteristics:

<1>they is available to every Activity and Fragment .

<2>they provide asynchronous loading of data

<3>they Monitor the source of their data and deliver new results when the content changes

<4>they automatically reconnect to the last loader's cursor when being recreated after a configuration change. Thus, they don ' t need to

Re-query their data

2.APP Components-activities/loadres