The specified child already has a parent. You must call removeView() on the child's parent first

Question

I create this post, because i am new at this, and i need a little help. I am doing a little exercise about a application you that put your name, and it returns \"hello (the

Answer 1

in ActivitySaludo, this line,

    setContentView(txtCambiado);

you must set the content view for the activity only once.