AIDE 模仿密码方框

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.support.v7.widget.AppCompatEditText;
import android.text.InputType;
import android.util.AttributeSet;
import java.util.ArrayList;
import java.util.List;
 
public class PwdEditText extends AppCompatEditText {
 
     private Paint sidePaint , backPaint , textPaint;
     private Context mC;
     private int spzceX ,spzceY;
     private int Wide;
     private int yiInput,weiInput,backColor , textColor;
     private String mText;
     private int textLength;
     private List rectFS;
    public PwdEditText(Context context) {
        super(context);
        mC = context;
        init();
    }
 
    public PwdEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        mC = context;
        init();
    }
 
    public PwdEditText(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        mC = context;
        init();
    }
 
    /**
     * 输入监听
     */
    interface OnTextChangeListeven{
        void onTextChange(String pwd);
    }
    private OnTextChangeListeven onTextChangeListeven;
    public void setOnTextChangeListeven(OnTextChangeListeven onTextChangeListeven){
        this.onTextChangeListeven = onTextChangeListeven;
    }
    public void clearText(){
        setText("");
        setInputType(InputType.TYPE_CLASS_NUMBER|InputType.TYPE_NUMBER_VARIATION_NORMAL);
    }
 
    private void init() {
        setTextColor(0X00ffffff);
        setInputType(InputType.TYPE_CLASS_NUMBER|InputType.TYPE_NUMBER_VARIATION_NORMAL);
        spzceX = dp2px(4);
        spzceY = dp2px(4);
        Wide  = dp2px(52);
        yiInput = 0xFFFF4081;
        weiInput = 0xffd0d0d0;
        backColor = 0xfff1f1f1;
        textColor = 0xFF424242;
        sidePaint = new Paint();
        backPaint = new Paint();
        textPaint = new Paint();
        rectFS = new ArrayList();
 
        mText = "" ;
        textLength = 6;
 
        this.setBackgroundDrawable(null);
        setLongClickable(false);
        setTextIsSelectable(false);
        setCursorVisible(false);
 
    }
 
    @Override
    protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
        super.onTextChanged(text, start, lengthBefore, lengthAfter);
        if (mText == null) {return;}
        //如果字数不超过用户设置的总字数，就赋值给成员变量mText；
        // 如果字数大于用户设置的总字数，就只保留用户设置的那几位数字，并把光标制动到最后，让用户可以删除；
        if (text.toString().length()