Android edittext listening (addtextchangedlistener)

Http://houwanji.blog.163.com/blog/static/162276220104140141050/

Paste the Code directly.
_ OK. setclickable (false); // initialization cannot be clicked
_ OK. setenabled (false );
_ Edit = (edittext) findviewbyid (R. Id. fb_status_eidt );
// Mainly refers to the implementation of interfaces in the listener
_ Edit. addtextchangedlistener
(New textwatcher (){
@ Override
Public void aftertextchanged
(Editable s ){
// Todo auto-generated method stub

}

@ Override
Public void beforetextchanged
(Charsequence S, int start, int count,
Int after ){
// Todo auto-generated method stub

}

@ Override
Public void ontextchanged
(Charsequence S, int start, int before,
Int count ){
// Todo auto-generated method stub
// The Key is here, listening for the input string. If it is greater than zero, you can click Enable.
If (S. Length ()> 0 ){
_ OK. setclickable (true );
_ OK. setenabled (true );
} Else {
_ OK. setclickable (false );
_ OK. setenabled (false );
}
}
});