Android Custom View Constructor
- by Mitch
I'm learning about using Custom Views from the following:
http://developer.android.com/guide/topics/ui/custom-components.html#modifying
The description says:
Class Initialization As always, the
super is called first. Furthermore,
this is not a default constructor, but
a parameterized one. The EditText is
created with these parameters when it
is inflated from an XML layout file,
thus, our constructor needs to both
take them and pass them to the
superclass constructor as well.
Is there a better description? I've been trying to figure out what the constructor(s) should look like and I've come up with 4 possible choices (see example at end of post). I'm not sure what these 4 choices do (or don't do), why I should implement them, or what the parameters mean. Is there a description of these?
Thanks.
Mitch
public MyCustomView()
{
super();
}
public MyCustomView(Context context)
{
super(context);
}
public MyCustomView(Context context, AttributeSet attrs)
{
super(context, attrs);
}
public MyCustomView(Context context, AttributeSet attrs, Map params)
{
super(context, attrs, params);
}
