using System;
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using System.Collections.Generic;
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using System.Text;
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namespace Shared.Phone
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{
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/// <summary>
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/// 验证码控件
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/// </summary>
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public class VerificationCodeControl : NormalFrameLayout
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{
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#region ■ 变量声明___________________________
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/// <summary>
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/// 每一个输入框值改变事件
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/// </summary>
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public Action<TextInputControl, string> TxtCodeChangeEvent = null;
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/// <summary>
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/// 结束输入的事件
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/// </summary>
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public Action<string> FinishInputEvent = null;
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/// <summary>
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/// 密码输入类型(它与NumberInputOnly不共存)
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/// </summary>
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public bool SecureTextEntry = false;
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/// <summary>
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/// 输入键盘指定为数字键盘(默认为true,它与SecureTextEntry不共存)
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/// </summary>
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public bool NumberInputOnly = true;
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/// <summary>
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/// 验证码长度
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/// </summary>
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private int CodeLenth = 0;
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/// <summary>
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/// 验证码输入控件
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/// </summary>
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private Dictionary<int, TextInputControl> dicCodeControls = new Dictionary<int, TextInputControl>();
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#endregion
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#region ■ 初始化_____________________________
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/// <summary>
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/// 验证码控件
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/// </summary>
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/// <param name="i_CodeLenth">验证码长度</param>
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public VerificationCodeControl(int i_CodeLenth)
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{
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this.CodeLenth = i_CodeLenth;
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this.Height = Application.GetRealHeight(104);
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this.Width = Application.GetRealWidth(i_CodeLenth * 115 + (i_CodeLenth - 1) * 49);
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this.Gravity = Gravity.CenterHorizontal;
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}
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#endregion
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#region ■ 验证码控件_________________________
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/// <summary>
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/// 初始化控件
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/// </summary>
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public void InitControl()
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{
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for (int i = 0; i < this.CodeLenth; i++)
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{
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var frameCode = new FrameLayout();
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frameCode.X = i * Application.GetRealWidth(115 + 49);
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frameCode.Width = Application.GetRealWidth(115);
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frameCode.Height = Application.GetRealHeight(104);
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frameCode.Radius = (uint)Application.GetRealHeight(17);
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frameCode.BorderWidth = 1;
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frameCode.BorderColor = UserCenterColor.Current.TextFrameColor;
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this.AddChidren(frameCode);
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var txtCode = new TextInputControl(frameCode.Width, frameCode.Height, false);
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if (SecureTextEntry == true)
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{
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txtCode.SecureTextEntry = true;
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}
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else if (NumberInputOnly == true)
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{
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txtCode.IsNumberKeyboardType = true;
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}
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txtCode.Name = i.ToString();
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txtCode.TextAlignment = TextAlignment.Center;
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frameCode.AddChidren(txtCode);
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dicCodeControls[i] = txtCode;
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//光标事件
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txtCode.FoucsChanged += this.TxtCode_FoucsChangedEvent;
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//值改变事件
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txtCode.TextChangeEventHandler += this.TxtCode_TextChangeEvent;
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//键盘事件
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txtCode.KeyEventAction += this.TxtCode_KeyEvent;
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}
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}
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#endregion
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#region ■ 验证码事件_________________________
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/// <summary>
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/// 验证码焦点变更事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void TxtCode_FoucsChangedEvent(object sender, FocusEventArgs e)
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{
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var txtCode = (TextInputControl)sender;
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if (txtCode.Parent == null)
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{
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return;
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}
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if (e.Focus == true)
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{
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//自动焦点选择前面的空白位置
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//if (txtCode.Text == string.Empty)
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//{
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// for (int i = 0; i < this.CodeLenth; i++)
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// {
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// if (dicCodeControls[i].Text == string.Empty)
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// {
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// dicCodeControls[i].FoucsChanged -= this.TxtCode_FoucsChangedEvent;
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// dicCodeControls[i].Parent.BorderColor = UserCenterColor.Current.TextFrameSelectColor;
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// dicCodeControls[i].Foucs = true;
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// dicCodeControls[i].FoucsChanged += this.TxtCode_FoucsChangedEvent;
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// return;
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// }
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// }
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//}
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txtCode.Parent.BorderColor = UserCenterColor.Current.TextFrameSelectColor;
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#if Android
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txtCode.SetSelectionEnd();
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#endif
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}
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else
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{
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txtCode.Parent.BorderColor = UserCenterColor.Current.TextFrameColor;
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}
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}
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/// <summary>
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/// 验证码值改变事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="textValue"></param>
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private void TxtCode_TextChangeEvent(object sender, string textValue)
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{
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this.TxtCodeChangeEvent?.Invoke((TextInputControl)sender, textValue);
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if (textValue == string.Empty)
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{
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return;
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}
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//这个是自己复制粘贴过来的
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if (textValue.Length == this.CodeLenth)
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{
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dicCodeControls[this.CodeLenth - 1].Foucs = true;
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#if Android
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//光标至于最后
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dicCodeControls[this.CodeLenth - 1].SetSelectionEnd();
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#endif
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for (int i = 0; i < this.CodeLenth; i++)
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{
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//先移除事件
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dicCodeControls[i].TextChangeEventHandler -= TxtCode_TextChangeEvent;
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//赋值
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dicCodeControls[i].Text = textValue[i].ToString();
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dicCodeControls[i].TextChangeEventHandler += TxtCode_TextChangeEvent;
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}
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//校验验证码
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this.FinishInputEvent?.Invoke(textValue);
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}
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else
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{
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//光标移动
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var txtCode = (TextInputControl)sender;
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//只能一个值
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if (textValue.Length > 1)
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{
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//先移除事件
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txtCode.TextChangeEventHandler -= TxtCode_TextChangeEvent;
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txtCode.Text = txtCode.Text.Substring(0, 1);
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txtCode.TextChangeEventHandler += TxtCode_TextChangeEvent;
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}
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int index = Convert.ToInt32(txtCode.Name);
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if (dicCodeControls.ContainsKey(index + 1) == true)
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{
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dicCodeControls[index + 1].Foucs = true;
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#if Android
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//光标至于最后
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dicCodeControls[index + 1].SetSelectionEnd();
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#endif
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}
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else
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{
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#if Android
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//光标至于最后
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txtCode.SetSelectionEnd();
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#endif
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//最后一位输入完成,校验验证码
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string code = string.Empty;
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for (int i = 0; i < this.CodeLenth; i++)
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{
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code += dicCodeControls[i].Text;
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}
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this.FinishInputEvent?.Invoke(code);
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}
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}
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}
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/// <summary>
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/// 键盘事件
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/// </summary>
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/// <param name="keysCode"></param>
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private void TxtCode_KeyEvent(object sender, string keysCode)
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{
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if (keysCode == "Del")
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{
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var txtCode = (TextInputControl)sender;
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if (txtCode.Text == string.Empty)
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{
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int index = Convert.ToInt32(txtCode.Name);
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if (dicCodeControls.ContainsKey(index - 1) == true)
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{
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dicCodeControls[index - 1].Foucs = true;
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#if Android
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//光标至于最后
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dicCodeControls[index - 1].SetSelectionEnd();
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#endif
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}
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}
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}
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}
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#endregion
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#region ■ 一般方法___________________________
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/// <summary>
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/// 设置焦点
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/// </summary>
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public void SetFocus()
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{
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if (dicCodeControls.Count > 0)
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{
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dicCodeControls[0].Foucs = true;
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}
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}
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/// <summary>
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/// 清空输入的值
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/// </summary>
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public void ClearInputValue()
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{
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foreach (var inputText in this.dicCodeControls.Values)
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{
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//先移除事件
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inputText.TextChangeEventHandler -= TxtCode_TextChangeEvent;
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//赋值
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inputText.Text = string.Empty;
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inputText.TextChangeEventHandler += TxtCode_TextChangeEvent;
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}
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dicCodeControls[0].Foucs = true;
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}
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#endregion
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#region ■ 控件摧毁___________________________
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/// <summary>
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/// 控件摧毁
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/// </summary>
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public override void RemoveAll()
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{
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this.dicCodeControls.Clear();
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this.TxtCodeChangeEvent = null;
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this.FinishInputEvent = null;
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base.RemoveAll();
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}
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#endregion
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}
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}
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