Android中怎么实现多级菜单子菜单中listview中RadioButton互斥

答案:2 悬赏:0

解决时间 2021-12-12 01:22

提问者网友：若相守￡卟离
2021-12-11 18:36

最佳答案

二级知识专家网友：哥在撩妹请勿打扰
2021-12-11 19:54

这个很简单啊。。把这个字段设置成唯一性约束就可以了，主键或者唯一性约束都行。

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1楼网友：懂得ㄋ、沉默
2021-12-11 20:23

需要自定义listview的适配器。在getview方法里面设置三个button的点击事件。给个例子你： private class testadapter extends baseadapter { private layoutinflater minflater; private context con; public testadapter (context context) { // cache the layoutinflate to avoid asking for a new one each time. con = context; minflater = layoutinflater.from(context); } public int getcount() { return list.size(); } public object getitem(int position) { return position; } public long getitemid(int position) { return position; } public view getview(int position, view convertview, viewgroup parent) { final viewholder holder; if (convertview == null) { convertview = minflater.inflate(r.layout.list, null); holder = new viewholder(); holder.bt01 = (button) convertview.findviewbyid(r.id.bt01); holder.bt02 = (button) convertview.findviewbyid(r.id.bt02); holder.bt03 = (button) convertview.findviewbyid(r.id.bt03); convertview.settag(holder); } else { holder = (viewholder) convertview.gettag(); } final int arg = position; //bt01点击 holder.bt01.setonclicklistener(new imageview.onclicklistener(){ public void onclick(view v) { } }); //bt02点击 holder.bt02.setonclicklistener(new imageview.onclicklistener(){ public void onclick(view v) { } }); //bt03点击 holder.bt03.setonclicklistener(new imageview.onclicklistener(){ public void onclick(view v) { } }); return convertview; } class viewholder { button bt01; button bt02; button bt03; } }

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