前言
最近公司项目里面有一个页面需要用到很多的设置功能,绞尽脑汁的我最终想到使用折叠卡片的形式来布局我的界面,效果如下:
效果在没有产品经理没有UI设计的情况下,我认为做出这个效果已经达到了我对美观的极限了。。。(请忽略美观 认真研究代码。。)
大致步骤如下
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1.扩展ExpandableListView功能添加折叠和展开的动画,为ExpandableListView添加动画是一个非常令人头疼的事情,所以我选择了使用github上某人的项目
为了不凑字数这段代码我还是不贴了,请自行去github上查看或者下载我的Demo查看
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2.布局中使用自己扩展了功能的ExpandableListView
<com.huyingzi.animatedexpandablelistviewdemo.view.AnimatedExpandableListView android:id="@+id/activity_expandablelistview" android:layout_width="match_parent" android:layout_height="match_parent"> </com.huyingzi.animatedexpandablelistviewdemo.view.AnimatedExpandableListView>
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3.设置ExpandableListView 的适配器
适配器需要继承自己扩展的适配器,适配器根据需要添加条目类型复写添加type的方法private final int TYPE_1 = 0; private final int TYPE_2 = 1; private final int TYPE_3 = 2; private final int TYPE_4 = 3; private final int TYPE_5 = 4; @Override public int getRealChildTypeCount() { return mItemNameArr.length; } @Override public int getRealChildType(int groupPosition, int childPosition) { if (groupPosition == 0) { return TYPE_1; } else if (groupPosition == 1) { return TYPE_2; } else if (groupPosition == 2) { return TYPE_3; } else if (groupPosition == 3) { return TYPE_4; } else if (groupPosition == 4) { return TYPE_5; } return -1; }
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4.Adapter的getRealChildView()中根据不同的type类型设置不同的布局
int type = getRealChildType(groupPosition, childPosition); switch (type) { case TYPE_1: convertView = View.inflate(mContext, R.layout.item_child_one, null); break; case TYPE_2: convertView = View.inflate(mContext, R.layout.item_child_two, null); break; case TYPE_3: convertView = View.inflate(mContext, R.layout.item_child_three, null); break; case TYPE_4: convertView = View.inflate(mContext, R.layout.item_child_four, null); break; case TYPE_5: convertView = View.inflate(mContext, R.layout.item_child_five, null); break; }
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5.给ExpandableListView设置一些初始效果
//去除分割线 mExpandableListView.setDivider(null); //设置所有条目全部展开 for (int i = 0; i < mItemNameArr.length; i++) { mExpandableListView.expandGroup(i); }
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6.设置ExpandableListView 的折叠动画
mExpandableListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() { @Override public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) { //设置扩展动画 if (mExpandableListView.isGroupExpanded(groupPosition)) { mExpandableListView.collapseGroupWithAnimation(groupPosition); } else { mExpandableListView.expandGroupWithAnimation(groupPosition); } return true; } });
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7.具体细节请下载项目完整代码观看:
完整Demo下载地址
Github下载:
https://github.com/CNHubin/AnimatedExpandableListViewDemo
博客资源下载:
http://download.csdn.net/detail/jrwetiop/9833714
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