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<>一、效果展示
<>二、用到的主要控件
* CheckBox
* RadioGroup/RadioButton
* ToggleButton
* SeekBar
* ImageView
* EditText
<>三、主要的代码
1.食物类
2.MainActivity逻辑代码
<>全局变量:
<>主要方法:
1.初始化控件
2.初始化数据
注意:给食物赋予drawable图片资源(int类型值),用(R.drawable.图片名称)即可
3.实现控件相应事件
<>四、收获
* 复习了CheckBox、RadioButton、ToggleButton、SeekBar和ImageView的使用
* ImageView可以调用setImageResource(R.drawable.图片名称)来设置图片显示
* 给食物赋予drawable图片资源(int类型值),用(R.drawable.图片名称)即可
* 只要是…changed监听器必须要控件的状态改变的时候才会回调该监听器
* 体会了java中的面向对象在android中的使用
* 搜索功能的核心算法思路是:把选项的boolean类型转换成int编码,用switch case来筛选食物类的属性
* 程序调试过程中打log也十分有用!!!不一定只用debug!!!