Android with notes

1. Open a sharedpreferences data map

Sharedpreferences preference = getsharedpreferences ("Name of Data Map", open mode);
Open mode has a variety of, generally readable and writable two, mode_world_writeable,mode_world_readable.

2. Reading of data
Call a heap of getxx methods, the first is the key (key) name, and the second is the default value that is returned if there is no value.

3. Data Write
An internal interface editor for Sharedpreferences is required, but is obtained using the edit () function.
Sharedpreferences.editor Editor = getsharedpreferences ("Firstweek", mode_world_writeable). Edit ();

Writes data to the editor object, using a method like map to write a key-value pair, calling a heap of putxx ().
Editor.putint ("Year", year);

When you have finished writing, close the editor.
Editor.commit ();