我要创建这样的页面。这7个按钮都已经存在，但如果用户想添加更多类别（按钮），那么他就可以用做 + 按钮和删除使用 - 按钮。 任何想法或教程制作呢？

I want to create a page like this. these 7 buttons are already exist but if user want to add more categories (button) then he can do using + button and delete using - button. Any idea or tutorial for making this?

推荐答案

创建/删除按钮的onClick 的 +按钮和 - 按钮如下：

Create/Remove button onClick of + button and - button as below:

  public void onClick(View v) {

     switch(v.getId()){
     case (R.id.plusbutton):
                 Button myButton = new Button(this);
                 myButton.setText("Add Me");

                 LinearLayout ll = (LinearLayout)findViewById(R.id.buttonlayout);
                 LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
                 ll.addView(myButton, lp);
                 break;.
     case (R.id.minusbutton):
                 Button myButton = new Button(this);
                 myButton.setText("Remove Me");

                 LinearLayout ll = (LinearLayout)findViewById(R.id.buttonlayout);
                 LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
                 ll.removeView(myButton, lp);
                 break;
           }
         }