An Android ListView which allows for configurable Drag and Drop functionality
Currently not on maven (yet?). See our releases for a .aar in the mean time.
The two classes that are required to use are DynamicListView (extends ListView), and DynamicArrayAdapter (extends ArrayAdapter)
To begin, you will need to add a DynamicListView to your layout, like any other ListView.
<com.tsiemens.dynamiclistview.DynamicListView
android:id="@+id/dynamic_list_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
Create a subclass of DynamicArrayAdapter, and fill out getView as you would for any other ArrayAdapter, with one addition: Somewhere (usually done in getView), you must specify an event that will trigger a call of DynamicListView.hoverRow(int position). This will cause the row at the position to hover. It should be triggered while a touch is in progress, such as during an onTouch event. This allows you to specify a particular view within the row, or the row as a whole, as the drag-and-drop grip point.
Note that DynamicListView.canHoverRows() should be called prior, to check the state of the list.
Additionally, your DynamicArrayAdapter must implement doItemSwap, which should somehow swap your data at the two positions. This is left to be implemented for configurability, since adapter implementations are not always the same, and your data may need to be modified (saving the positions) after the swap.
DynamicArrayAdapter.fillTranslarentMobileRowBackground(Integer color) can be called to set a color which will replace any transparent areas of a row being dragged. This is particularly useful if you don't want text to overlap, and want the rows to have a more solid feel.
Check our the super simple sample in the /app directory of this repo.