修改动态和部分我的界面
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被淹死的鱼
156
app/src/main/java/com/xuebiping/bolizhuzi/utils/CodeUtils.java
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156
app/src/main/java/com/xuebiping/bolizhuzi/utils/CodeUtils.java
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package com.xuebiping.bolizhuzi.utils;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import java.util.Random;
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/**
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* Created by ekikousei易皇星 on 16/11/21.
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* E-mail:13764664731@163.com
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* Signature:缘分是本书,翻的不经意会错过,读的太认真会流泪!!
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* <p/>
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* 类描述: 用于图形验证码的工具类
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*/
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public class CodeUtils {
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// private static final char[] CHARS = {
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// '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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// 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
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// 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
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// 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
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// 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
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// };
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// private static final char[] CHARS = {
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//
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// 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
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// 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
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//
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// };
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private static CodeUtils mCodeUtils;
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private int mPaddingLeft, mPaddingTop;
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private StringBuilder mBuilder = new StringBuilder();
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private Random mRandom = new Random();
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//Default Settings
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// private static final int DEFAULT_CODE_LENGTH = 6;//验证码的长度 这里是6位
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private static final int DEFAULT_CODE_LENGTH = 4;//验证码的长度 这里是4位
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private static final int DEFAULT_FONT_SIZE = 60;//字体大小
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private static final int DEFAULT_LINE_NUMBER = 3;//多少条干扰线
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private static final int BASE_PADDING_LEFT = 40; //左边距
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private static final int RANGE_PADDING_LEFT = 30;//左边距范围值
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private static final int BASE_PADDING_TOP = 70;//上边距
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private static final int RANGE_PADDING_TOP = 15;//上边距范围值
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private static final int DEFAULT_WIDTH = 300;//默认宽度.图片的总宽
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private static final int DEFAULT_HEIGHT = 100;//默认高度.图片的总高
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private static final int DEFAULT_COLOR = 0xDF;//默认背景颜色值
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private String code;
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public static CodeUtils getInstance() {
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if (mCodeUtils == null) {
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mCodeUtils = new CodeUtils();
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}
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return mCodeUtils;
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}
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//生成验证码图片 返回类型为bitmap 直接用imageview.setbitmap()即可
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public Bitmap createBitmap(String mCode) {
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mPaddingLeft = 0; //每次生成验证码图片时初始化
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mPaddingTop = 0;
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Bitmap bitmap = Bitmap.createBitmap(DEFAULT_WIDTH, DEFAULT_HEIGHT, Bitmap.Config.ARGB_8888);
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Canvas canvas = new Canvas(bitmap);
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code = mCode;
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canvas.drawColor(Color.rgb(DEFAULT_COLOR, DEFAULT_COLOR, DEFAULT_COLOR));
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Paint paint = new Paint();
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paint.setTextSize(DEFAULT_FONT_SIZE);
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for (int i = 0; i < mCode.length(); i++) {
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randomTextStyle(paint);
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randomPadding();
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canvas.drawText(mCode.charAt(i) + "", mPaddingLeft, mPaddingTop, paint);
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}
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//干扰线
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for (int i = 0; i < DEFAULT_LINE_NUMBER; i++) {
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drawLine(canvas, paint);
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}
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canvas.save();//保存
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canvas.restore();
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return bitmap;
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}
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/**
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* 得到图片中的验证码字符串
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*
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* @return
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*/
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public String getCode() {
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return code;
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}
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//生成验证码
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// public String createCode(String code) {
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// mBuilder.delete(0, mBuilder.length()); //使用之前首先清空内容
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//
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// for (int i = 0; i < DEFAULT_CODE_LENGTH; i++) {
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// mBuilder.append(CHARS[mRandom.nextInt(CHARS.length)]);
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// }
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//
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// return mBuilder.toString();
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// }
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//生成干扰线
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private void drawLine(Canvas canvas, Paint paint) {
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int color = randomColor();
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int startX = mRandom.nextInt(DEFAULT_WIDTH);
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int startY = mRandom.nextInt(DEFAULT_HEIGHT);
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int stopX = mRandom.nextInt(DEFAULT_WIDTH);
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int stopY = mRandom.nextInt(DEFAULT_HEIGHT);
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paint.setStrokeWidth(1);
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paint.setColor(color);
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canvas.drawLine(startX, startY, stopX, stopY, paint);
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}
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//随机颜色
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private int randomColor() {
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mBuilder.delete(0, mBuilder.length()); //使用之前首先清空内容
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String haxString;
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for (int i = 0; i < 3; i++) {
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haxString = Integer.toHexString(mRandom.nextInt(0xFF));
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if (haxString.length() == 1) {
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haxString = "0" + haxString;
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}
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mBuilder.append(haxString);
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}
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return Color.parseColor("#" + mBuilder.toString());
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}
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//随机文本样式
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private void randomTextStyle(Paint paint) {
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int color = randomColor();
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paint.setColor(color);
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paint.setFakeBoldText(mRandom.nextBoolean()); //true为粗体，false为非粗体
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float skewX = mRandom.nextInt(11) / 10;
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skewX = mRandom.nextBoolean() ? skewX : -skewX;
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paint.setTextSkewX(skewX); //float类型参数，负数表示右斜，整数左斜
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// paint.setUnderlineText(true); //true为下划线，false为非下划线
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// paint.setStrikeThruText(true); //true为删除线，false为非删除线
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}
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//随机间距
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private void randomPadding() {
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mPaddingLeft += BASE_PADDING_LEFT + mRandom.nextInt(RANGE_PADDING_LEFT);
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mPaddingTop = BASE_PADDING_TOP + mRandom.nextInt(RANGE_PADDING_TOP);
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}
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}
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