Question

android Messagebox doesn’t show because of finish call, how to make this function wait for ok and then close

public void msbox(String str,String str2)
{
    AlertDialog.Builder dlgAlert  = new AlertDialog.Builder(this);                      
    dlgAlert.setMessage(str2);
    dlgAlert.setTitle(str);              
    dlgAlert.setPositiveButton("OK", null);
    dlgAlert.setCancelable(true);
    dlgAlert.create().show();
    finish(); 
}

should be like this

public void msbox(String str,String str2)
{
    AlertDialog.Builder dlgAlert  = new AlertDialog.Builder(this);                      
    dlgAlert.setTitle(str); 
    dlgAlert.setMessage(str2); 
    dlgAlert.setPositiveButton("OK",new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int whichButton) {
             finish(); 
        }
   });
    dlgAlert.setCancelable(true);
    dlgAlert.create().show();
}

Answer 1

see SO question: AlertDialog doesn't wait for input

you will have to implement callback (OnClickListener) when user clicks OK on AlertDialog.

This all because Android dialog boxes are not modal (non-blocking invoker thread)

dlgAlert.setPositiveButton("OK",new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int whichButton) {
        // call your code here
    }
});