android 充值页面效果源码.zip

上传者: 39841365 | 上传时间: 2021-05-10 18:10:18 | 文件大小: 986KB | 文件类型: ZIP
android 充值页面效果源码
1.要求是只能输入数字,最多小数点后两位,下方的充值金额小计一栏始终显示两位小数,除非金额为0,才可以显示为0。
2.GridView 的最后一项是EditText ,点击的时候不能在OnItemClickListener 中监听到,通过OnFocusChangeListener 进行了监听。
3.从输入框切换到具体金额时,清除输入框的焦点clearFocus(),以便下次点击输入框时能回调OnFocusChangeListener 中的方法。
4.从输入框切换到具体金额时,隐藏键盘,同时避免隐藏时影响画面布局。
5.从具体金额切换到输入框时,提取输入框中已经输入的金额到小计一栏。
6.控制输入框中的输入,利用正则表达式结合TextWatcher() 监听器,当输入不符合规定时,动态改变显示的数字(要避免进入死循环),再实时更新到小计一栏。

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