宁波网站推广合作商,阿里seo外包能去吗,机械网站精选,吴江手机网站建设价格话不多说直接开干
先是vue的
1#xff0c;首先按照一下依赖
npm install --save qrcode
2,在需要使用的页面引入
import QRCode from qrcode;
3,使用 const codeDetail (item) {//这个item.code是要生成的数据#xff0c;我的是一串数字QRCode.toDataURL(item.co…话不多说直接开干
先是vue的
1首先按照一下依赖
npm install --save qrcode
2,在需要使用的页面引入
import QRCode from qrcode;
3,使用 const codeDetail (item) {//这个item.code是要生成的数据我的是一串数字QRCode.toDataURL(item.code).then((img) {console.log(img);这个img是图片路径赋值给img标签即可显示});};
然后是uniapp
//
1新建一个js文件夹把以下代码放进来代码我放在最后了js文件名为uqrcode.js
2在使用的页面引用
import UQrocode from ../../pages/uqrcode.js;
3在使用前需要有一个画布 canvas canvas-idqrcode stylewidth: 30px; height: 30px/canvas
4使用 UQrocode.make({
//canvasId要和上面画布的id是一样的canvasId:qrcode,componentInstance:this,text:你要生成的内容,size:30//尺寸,margin:0})},
下面附上js代码
// uqrcode.js
//---------------------------------------------------------------------
// github https://github.com/Sansnn/uQRCode
//---------------------------------------------------------------------let uQRCode {};(function() {//---------------------------------------------------------------------// QRCode for JavaScript//// Copyright (c) 2009 Kazuhiko Arase//// URL: http://www.d-project.com///// Licensed under the MIT license:// http://www.opensource.org/licenses/mit-license.php//// The word QR Code is registered trademark of // DENSO WAVE INCORPORATED// http://www.denso-wave.com/qrcode/faqpatent-e.html////---------------------------------------------------------------------//---------------------------------------------------------------------// QR8bitByte//---------------------------------------------------------------------function QR8bitByte(data) {this.mode QRMode.MODE_8BIT_BYTE;this.data data;}QR8bitByte.prototype {getLength: function(buffer) {return this.data.length;},write: function(buffer) {for (var i 0; i this.data.length; i) {// not JIS ...buffer.put(this.data.charCodeAt(i), 8);}}};//---------------------------------------------------------------------// QRCode//---------------------------------------------------------------------function QRCode(typeNumber, errorCorrectLevel) {this.typeNumber typeNumber;this.errorCorrectLevel errorCorrectLevel;this.modules null;this.moduleCount 0;this.dataCache null;this.dataList new Array();}QRCode.prototype {addData: function(data) {var newData new QR8bitByte(data);this.dataList.push(newData);this.dataCache null;},isDark: function(row, col) {if (row 0 || this.moduleCount row || col 0 || this.moduleCount col) {throw new Error(row , col);}return this.modules[row][col];},getModuleCount: function() {return this.moduleCount;},make: function() {// Calculate automatically typeNumber if provided is 1if (this.typeNumber 1) {var typeNumber 1;for (typeNumber 1; typeNumber 40; typeNumber) {var rsBlocks QRRSBlock.getRSBlocks(typeNumber, this.errorCorrectLevel);var buffer new QRBitBuffer();var totalDataCount 0;for (var i 0; i rsBlocks.length; i) {totalDataCount rsBlocks[i].dataCount;}for (var i 0; i this.dataList.length; i) {var data this.dataList[i];buffer.put(data.mode, 4);buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber));data.write(buffer);}if (buffer.getLengthInBits() totalDataCount * 8)break;}this.typeNumber typeNumber;}this.makeImpl(false, this.getBestMaskPattern());},makeImpl: function(test, maskPattern) {this.moduleCount this.typeNumber * 4 17;this.modules new Array(this.moduleCount);for (var row 0; row this.moduleCount; row) {this.modules[row] new Array(this.moduleCount);for (var col 0; col this.moduleCount; col) {this.modules[row][col] null; //(col row) % 3;}}this.setupPositionProbePattern(0, 0);this.setupPositionProbePattern(this.moduleCount - 7, 0);this.setupPositionProbePattern(0, this.moduleCount - 7);this.setupPositionAdjustPattern();this.setupTimingPattern();this.setupTypeInfo(test, maskPattern);if (this.typeNumber 7) {this.setupTypeNumber(test);}if (this.dataCache null) {this.dataCache QRCode.createData(this.typeNumber, this.errorCorrectLevel, this.dataList);}this.mapData(this.dataCache, maskPattern);},setupPositionProbePattern: function(row, col) {for (var r -1; r 7; r) {if (row r -1 || this.moduleCount row r) continue;for (var c -1; c 7; c) {if (col c -1 || this.moduleCount col c) continue;if ((0 r r 6 (c 0 || c 6)) ||(0 c c 6 (r 0 || r 6)) ||(2 r r 4 2 c c 4)) {this.modules[row r][col c] true;} else {this.modules[row r][col c] false;}}}},getBestMaskPattern: function() {var minLostPoint 0;var pattern 0;for (var i 0; i 8; i) {this.makeImpl(true, i);var lostPoint QRUtil.getLostPoint(this);if (i 0 || minLostPoint lostPoint) {minLostPoint lostPoint;pattern i;}}return pattern;},createMovieClip: function(target_mc, instance_name, depth) {var qr_mc target_mc.createEmptyMovieClip(instance_name, depth);var cs 1;this.make();for (var row 0; row this.modules.length; row) {var y row * cs;for (var col 0; col this.modules[row].length; col) {var x col * cs;var dark this.modules[row][col];if (dark) {qr_mc.beginFill(0, 100);qr_mc.moveTo(x, y);qr_mc.lineTo(x cs, y);qr_mc.lineTo(x cs, y cs);qr_mc.lineTo(x, y cs);qr_mc.endFill();}}}return qr_mc;},setupTimingPattern: function() {for (var r 8; r this.moduleCount - 8; r) {if (this.modules[r][6] ! null) {continue;}this.modules[r][6] (r % 2 0);}for (var c 8; c this.moduleCount - 8; c) {if (this.modules[6][c] ! null) {continue;}this.modules[6][c] (c % 2 0);}},setupPositionAdjustPattern: function() {var pos QRUtil.getPatternPosition(this.typeNumber);for (var i 0; i pos.length; i) {for (var j 0; j pos.length; j) {var row pos[i];var col pos[j];if (this.modules[row][col] ! null) {continue;}for (var r -2; r 2; r) {for (var c -2; c 2; c) {if (r -2 || r 2 || c -2 || c 2 ||(r 0 c 0)) {this.modules[row r][col c] true;} else {this.modules[row r][col c] false;}}}}}},setupTypeNumber: function(test) {var bits QRUtil.getBCHTypeNumber(this.typeNumber);for (var i 0; i 18; i) {var mod (!test ((bits i) 1) 1);this.modules[Math.floor(i / 3)][i % 3 this.moduleCount - 8 - 3] mod;}for (var i 0; i 18; i) {var mod (!test ((bits i) 1) 1);this.modules[i % 3 this.moduleCount - 8 - 3][Math.floor(i / 3)] mod;}},setupTypeInfo: function(test, maskPattern) {var data (this.errorCorrectLevel 3) | maskPattern;var bits QRUtil.getBCHTypeInfo(data);// vertical for (var i 0; i 15; i) {var mod (!test ((bits i) 1) 1);if (i 6) {this.modules[i][8] mod;} else if (i 8) {this.modules[i 1][8] mod;} else {this.modules[this.moduleCount - 15 i][8] mod;}}// horizontalfor (var i 0; i 15; i) {var mod (!test ((bits i) 1) 1);if (i 8) {this.modules[8][this.moduleCount - i - 1] mod;} else if (i 9) {this.modules[8][15 - i - 1 1] mod;} else {this.modules[8][15 - i - 1] mod;}}// fixed modulethis.modules[this.moduleCount - 8][8] (!test);},mapData: function(data, maskPattern) {var inc -1;var row this.moduleCount - 1;var bitIndex 7;var byteIndex 0;for (var col this.moduleCount - 1; col 0; col - 2) {if (col 6) col--;while (true) {for (var c 0; c 2; c) {if (this.modules[row][col - c] null) {var dark false;if (byteIndex data.length) {dark (((data[byteIndex] bitIndex) 1) 1);}var mask QRUtil.getMask(maskPattern, row, col - c);if (mask) {dark !dark;}this.modules[row][col - c] dark;bitIndex--;if (bitIndex -1) {byteIndex;bitIndex 7;}}}row inc;if (row 0 || this.moduleCount row) {row - inc;inc -inc;break;}}}}};QRCode.PAD0 0xEC;QRCode.PAD1 0x11;QRCode.createData function(typeNumber, errorCorrectLevel, dataList) {var rsBlocks QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel);var buffer new QRBitBuffer();for (var i 0; i dataList.length; i) {var data dataList[i];buffer.put(data.mode, 4);buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber));data.write(buffer);}// calc num max data.var totalDataCount 0;for (var i 0; i rsBlocks.length; i) {totalDataCount rsBlocks[i].dataCount;}if (buffer.getLengthInBits() totalDataCount * 8) {throw new Error(code length overflow. ( buffer.getLengthInBits() totalDataCount * 8 ));}// end codeif (buffer.getLengthInBits() 4 totalDataCount * 8) {buffer.put(0, 4);}// paddingwhile (buffer.getLengthInBits() % 8 ! 0) {buffer.putBit(false);}// paddingwhile (true) {if (buffer.getLengthInBits() totalDataCount * 8) {break;}buffer.put(QRCode.PAD0, 8);if (buffer.getLengthInBits() totalDataCount * 8) {break;}buffer.put(QRCode.PAD1, 8);}return QRCode.createBytes(buffer, rsBlocks);}QRCode.createBytes function(buffer, rsBlocks) {var offset 0;var maxDcCount 0;var maxEcCount 0;var dcdata new Array(rsBlocks.length);var ecdata new Array(rsBlocks.length);for (var r 0; r rsBlocks.length; r) {var dcCount rsBlocks[r].dataCount;var ecCount rsBlocks[r].totalCount - dcCount;maxDcCount Math.max(maxDcCount, dcCount);maxEcCount Math.max(maxEcCount, ecCount);dcdata[r] new Array(dcCount);for (var i 0; i dcdata[r].length; i) {dcdata[r][i] 0xff buffer.buffer[i offset];}offset dcCount;var rsPoly QRUtil.getErrorCorrectPolynomial(ecCount);var rawPoly new QRPolynomial(dcdata[r], rsPoly.getLength() - 1);var modPoly rawPoly.mod(rsPoly);ecdata[r] new Array(rsPoly.getLength() - 1);for (var i 0; i ecdata[r].length; i) {var modIndex i modPoly.getLength() - ecdata[r].length;ecdata[r][i] (modIndex 0) ? modPoly.get(modIndex) : 0;}}var totalCodeCount 0;for (var i 0; i rsBlocks.length; i) {totalCodeCount rsBlocks[i].totalCount;}var data new Array(totalCodeCount);var index 0;for (var i 0; i maxDcCount; i) {for (var r 0; r rsBlocks.length; r) {if (i dcdata[r].length) {data[index] dcdata[r][i];}}}for (var i 0; i maxEcCount; i) {for (var r 0; r rsBlocks.length; r) {if (i ecdata[r].length) {data[index] ecdata[r][i];}}}return data;}//---------------------------------------------------------------------// QRMode//---------------------------------------------------------------------var QRMode {MODE_NUMBER: 1 0,MODE_ALPHA_NUM: 1 1,MODE_8BIT_BYTE: 1 2,MODE_KANJI: 1 3};//---------------------------------------------------------------------// QRErrorCorrectLevel//---------------------------------------------------------------------var QRErrorCorrectLevel {L: 1,M: 0,Q: 3,H: 2};//---------------------------------------------------------------------// QRMaskPattern//---------------------------------------------------------------------var QRMaskPattern {PATTERN000: 0,PATTERN001: 1,PATTERN010: 2,PATTERN011: 3,PATTERN100: 4,PATTERN101: 5,PATTERN110: 6,PATTERN111: 7};//---------------------------------------------------------------------// QRUtil//---------------------------------------------------------------------var QRUtil {PATTERN_POSITION_TABLE: [[],[6, 18],[6, 22],[6, 26],[6, 30],[6, 34],[6, 22, 38],[6, 24, 42],[6, 26, 46],[6, 28, 50],[6, 30, 54],[6, 32, 58],[6, 34, 62],[6, 26, 46, 66],[6, 26, 48, 70],[6, 26, 50, 74],[6, 30, 54, 78],[6, 30, 56, 82],[6, 30, 58, 86],[6, 34, 62, 90],[6, 28, 50, 72, 94],[6, 26, 50, 74, 98],[6, 30, 54, 78, 102],[6, 28, 54, 80, 106],[6, 32, 58, 84, 110],[6, 30, 58, 86, 114],[6, 34, 62, 90, 118],[6, 26, 50, 74, 98, 122],[6, 30, 54, 78, 102, 126],[6, 26, 52, 78, 104, 130],[6, 30, 56, 82, 108, 134],[6, 34, 60, 86, 112, 138],[6, 30, 58, 86, 114, 142],[6, 34, 62, 90, 118, 146],[6, 30, 54, 78, 102, 126, 150],[6, 24, 50, 76, 102, 128, 154],[6, 28, 54, 80, 106, 132, 158],[6, 32, 58, 84, 110, 136, 162],[6, 26, 54, 82, 110, 138, 166],[6, 30, 58, 86, 114, 142, 170]],G15: (1 10) | (1 8) | (1 5) | (1 4) | (1 2) | (1 1) | (1 0),G18: (1 12) | (1 11) | (1 10) | (1 9) | (1 8) | (1 5) | (1 2) | (1 0),G15_MASK: (1 14) | (1 12) | (1 10) | (1 4) | (1 1),getBCHTypeInfo: function(data) {var d data 10;while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) 0) {d ^ (QRUtil.G15 (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15)));}return ((data 10) | d) ^ QRUtil.G15_MASK;},getBCHTypeNumber: function(data) {var d data 12;while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) 0) {d ^ (QRUtil.G18 (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18)));}return (data 12) | d;},getBCHDigit: function(data) {var digit 0;while (data ! 0) {digit;data 1;}return digit;},getPatternPosition: function(typeNumber) {return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1];},getMask: function(maskPattern, i, j) {switch (maskPattern) {case QRMaskPattern.PATTERN000:return (i j) % 2 0;case QRMaskPattern.PATTERN001:return i % 2 0;case QRMaskPattern.PATTERN010:return j % 3 0;case QRMaskPattern.PATTERN011:return (i j) % 3 0;case QRMaskPattern.PATTERN100:return (Math.floor(i / 2) Math.floor(j / 3)) % 2 0;case QRMaskPattern.PATTERN101:return (i * j) % 2 (i * j) % 3 0;case QRMaskPattern.PATTERN110:return ((i * j) % 2 (i * j) % 3) % 2 0;case QRMaskPattern.PATTERN111:return ((i * j) % 3 (i j) % 2) % 2 0;default:throw new Error(bad maskPattern: maskPattern);}},getErrorCorrectPolynomial: function(errorCorrectLength) {var a new QRPolynomial([1], 0);for (var i 0; i errorCorrectLength; i) {a a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0));}return a;},getLengthInBits: function(mode, type) {if (1 type type 10) {// 1 - 9switch (mode) {case QRMode.MODE_NUMBER:return 10;case QRMode.MODE_ALPHA_NUM:return 9;case QRMode.MODE_8BIT_BYTE:return 8;case QRMode.MODE_KANJI:return 8;default:throw new Error(mode: mode);}} else if (type 27) {// 10 - 26switch (mode) {case QRMode.MODE_NUMBER:return 12;case QRMode.MODE_ALPHA_NUM:return 11;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 10;default:throw new Error(mode: mode);}} else if (type 41) {// 27 - 40switch (mode) {case QRMode.MODE_NUMBER:return 14;case QRMode.MODE_ALPHA_NUM:return 13;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 12;default:throw new Error(mode: mode);}} else {throw new Error(type: type);}},getLostPoint: function(qrCode) {var moduleCount qrCode.getModuleCount();var lostPoint 0;// LEVEL1for (var row 0; row moduleCount; row) {for (var col 0; col moduleCount; col) {var sameCount 0;var dark qrCode.isDark(row, col);for (var r -1; r 1; r) {if (row r 0 || moduleCount row r) {continue;}for (var c -1; c 1; c) {if (col c 0 || moduleCount col c) {continue;}if (r 0 c 0) {continue;}if (dark qrCode.isDark(row r, col c)) {sameCount;}}}if (sameCount 5) {lostPoint (3 sameCount - 5);}}}// LEVEL2for (var row 0; row moduleCount - 1; row) {for (var col 0; col moduleCount - 1; col) {var count 0;if (qrCode.isDark(row, col)) count;if (qrCode.isDark(row 1, col)) count;if (qrCode.isDark(row, col 1)) count;if (qrCode.isDark(row 1, col 1)) count;if (count 0 || count 4) {lostPoint 3;}}}// LEVEL3for (var row 0; row moduleCount; row) {for (var col 0; col moduleCount - 6; col) {if (qrCode.isDark(row, col) !qrCode.isDark(row, col 1) qrCode.isDark(row, col 2) qrCode.isDark(row, col 3) qrCode.isDark(row, col 4) !qrCode.isDark(row, col 5) qrCode.isDark(row, col 6)) {lostPoint 40;}}}for (var col 0; col moduleCount; col) {for (var row 0; row moduleCount - 6; row) {if (qrCode.isDark(row, col) !qrCode.isDark(row 1, col) qrCode.isDark(row 2, col) qrCode.isDark(row 3, col) qrCode.isDark(row 4, col) !qrCode.isDark(row 5, col) qrCode.isDark(row 6, col)) {lostPoint 40;}}}// LEVEL4var darkCount 0;for (var col 0; col moduleCount; col) {for (var row 0; row moduleCount; row) {if (qrCode.isDark(row, col)) {darkCount;}}}var ratio Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;lostPoint ratio * 10;return lostPoint;}};//---------------------------------------------------------------------// QRMath//---------------------------------------------------------------------var QRMath {glog: function(n) {if (n 1) {throw new Error(glog( n ));}return QRMath.LOG_TABLE[n];},gexp: function(n) {while (n 0) {n 255;}while (n 256) {n - 255;}return QRMath.EXP_TABLE[n];},EXP_TABLE: new Array(256),LOG_TABLE: new Array(256)};for (var i 0; i 8; i) {QRMath.EXP_TABLE[i] 1 i;}for (var i 8; i 256; i) {QRMath.EXP_TABLE[i] QRMath.EXP_TABLE[i - 4] ^QRMath.EXP_TABLE[i - 5] ^QRMath.EXP_TABLE[i - 6] ^QRMath.EXP_TABLE[i - 8];}for (var i 0; i 255; i) {QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] i;}//---------------------------------------------------------------------// QRPolynomial//---------------------------------------------------------------------function QRPolynomial(num, shift) {if (num.length undefined) {throw new Error(num.length / shift);}var offset 0;while (offset num.length num[offset] 0) {offset;}this.num new Array(num.length - offset shift);for (var i 0; i num.length - offset; i) {this.num[i] num[i offset];}}QRPolynomial.prototype {get: function(index) {return this.num[index];},getLength: function() {return this.num.length;},multiply: function(e) {var num new Array(this.getLength() e.getLength() - 1);for (var i 0; i this.getLength(); i) {for (var j 0; j e.getLength(); j) {num[i j] ^ QRMath.gexp(QRMath.glog(this.get(i)) QRMath.glog(e.get(j)));}}return new QRPolynomial(num, 0);},mod: function(e) {if (this.getLength() - e.getLength() 0) {return this;}var ratio QRMath.glog(this.get(0)) - QRMath.glog(e.get(0));var num new Array(this.getLength());for (var i 0; i this.getLength(); i) {num[i] this.get(i);}for (var i 0; i e.getLength(); i) {num[i] ^ QRMath.gexp(QRMath.glog(e.get(i)) ratio);}// recursive callreturn new QRPolynomial(num, 0).mod(e);}};//---------------------------------------------------------------------// QRRSBlock//---------------------------------------------------------------------function QRRSBlock(totalCount, dataCount) {this.totalCount totalCount;this.dataCount dataCount;}QRRSBlock.RS_BLOCK_TABLE [// L// M// Q// H// 1[1, 26, 19],[1, 26, 16],[1, 26, 13],[1, 26, 9],// 2[1, 44, 34],[1, 44, 28],[1, 44, 22],[1, 44, 16],// 3[1, 70, 55],[1, 70, 44],[2, 35, 17],[2, 35, 13],// 4 [1, 100, 80],[2, 50, 32],[2, 50, 24],[4, 25, 9],// 5[1, 134, 108],[2, 67, 43],[2, 33, 15, 2, 34, 16],[2, 33, 11, 2, 34, 12],// 6[2, 86, 68],[4, 43, 27],[4, 43, 19],[4, 43, 15],// 7 [2, 98, 78],[4, 49, 31],[2, 32, 14, 4, 33, 15],[4, 39, 13, 1, 40, 14],// 8[2, 121, 97],[2, 60, 38, 2, 61, 39],[4, 40, 18, 2, 41, 19],[4, 40, 14, 2, 41, 15],// 9[2, 146, 116],[3, 58, 36, 2, 59, 37],[4, 36, 16, 4, 37, 17],[4, 36, 12, 4, 37, 13],// 10 [2, 86, 68, 2, 87, 69],[4, 69, 43, 1, 70, 44],[6, 43, 19, 2, 44, 20],[6, 43, 15, 2, 44, 16],// 11[4, 101, 81],[1, 80, 50, 4, 81, 51],[4, 50, 22, 4, 51, 23],[3, 36, 12, 8, 37, 13],// 12[2, 116, 92, 2, 117, 93],[6, 58, 36, 2, 59, 37],[4, 46, 20, 6, 47, 21],[7, 42, 14, 4, 43, 15],// 13[4, 133, 107],[8, 59, 37, 1, 60, 38],[8, 44, 20, 4, 45, 21],[12, 33, 11, 4, 34, 12],// 14[3, 145, 115, 1, 146, 116],[4, 64, 40, 5, 65, 41],[11, 36, 16, 5, 37, 17],[11, 36, 12, 5, 37, 13],// 15[5, 109, 87, 1, 110, 88],[5, 65, 41, 5, 66, 42],[5, 54, 24, 7, 55, 25],[11, 36, 12],// 16[5, 122, 98, 1, 123, 99],[7, 73, 45, 3, 74, 46],[15, 43, 19, 2, 44, 20],[3, 45, 15, 13, 46, 16],// 17[1, 135, 107, 5, 136, 108],[10, 74, 46, 1, 75, 47],[1, 50, 22, 15, 51, 23],[2, 42, 14, 17, 43, 15],// 18[5, 150, 120, 1, 151, 121],[9, 69, 43, 4, 70, 44],[17, 50, 22, 1, 51, 23],[2, 42, 14, 19, 43, 15],// 19[3, 141, 113, 4, 142, 114],[3, 70, 44, 11, 71, 45],[17, 47, 21, 4, 48, 22],[9, 39, 13, 16, 40, 14],// 20[3, 135, 107, 5, 136, 108],[3, 67, 41, 13, 68, 42],[15, 54, 24, 5, 55, 25],[15, 43, 15, 10, 44, 16],// 21[4, 144, 116, 4, 145, 117],[17, 68, 42],[17, 50, 22, 6, 51, 23],[19, 46, 16, 6, 47, 17],// 22[2, 139, 111, 7, 140, 112],[17, 74, 46],[7, 54, 24, 16, 55, 25],[34, 37, 13],// 23[4, 151, 121, 5, 152, 122],[4, 75, 47, 14, 76, 48],[11, 54, 24, 14, 55, 25],[16, 45, 15, 14, 46, 16],// 24[6, 147, 117, 4, 148, 118],[6, 73, 45, 14, 74, 46],[11, 54, 24, 16, 55, 25],[30, 46, 16, 2, 47, 17],// 25[8, 132, 106, 4, 133, 107],[8, 75, 47, 13, 76, 48],[7, 54, 24, 22, 55, 25],[22, 45, 15, 13, 46, 16],// 26[10, 142, 114, 2, 143, 115],[19, 74, 46, 4, 75, 47],[28, 50, 22, 6, 51, 23],[33, 46, 16, 4, 47, 17],// 27[8, 152, 122, 4, 153, 123],[22, 73, 45, 3, 74, 46],[8, 53, 23, 26, 54, 24],[12, 45, 15, 28, 46, 16],// 28[3, 147, 117, 10, 148, 118],[3, 73, 45, 23, 74, 46],[4, 54, 24, 31, 55, 25],[11, 45, 15, 31, 46, 16],// 29[7, 146, 116, 7, 147, 117],[21, 73, 45, 7, 74, 46],[1, 53, 23, 37, 54, 24],[19, 45, 15, 26, 46, 16],// 30[5, 145, 115, 10, 146, 116],[19, 75, 47, 10, 76, 48],[15, 54, 24, 25, 55, 25],[23, 45, 15, 25, 46, 16],// 31[13, 145, 115, 3, 146, 116],[2, 74, 46, 29, 75, 47],[42, 54, 24, 1, 55, 25],[23, 45, 15, 28, 46, 16],// 32[17, 145, 115],[10, 74, 46, 23, 75, 47],[10, 54, 24, 35, 55, 25],[19, 45, 15, 35, 46, 16],// 33[17, 145, 115, 1, 146, 116],[14, 74, 46, 21, 75, 47],[29, 54, 24, 19, 55, 25],[11, 45, 15, 46, 46, 16],// 34[13, 145, 115, 6, 146, 116],[14, 74, 46, 23, 75, 47],[44, 54, 24, 7, 55, 25],[59, 46, 16, 1, 47, 17],// 35[12, 151, 121, 7, 152, 122],[12, 75, 47, 26, 76, 48],[39, 54, 24, 14, 55, 25],[22, 45, 15, 41, 46, 16],// 36[6, 151, 121, 14, 152, 122],[6, 75, 47, 34, 76, 48],[46, 54, 24, 10, 55, 25],[2, 45, 15, 64, 46, 16],// 37[17, 152, 122, 4, 153, 123],[29, 74, 46, 14, 75, 47],[49, 54, 24, 10, 55, 25],[24, 45, 15, 46, 46, 16],// 38[4, 152, 122, 18, 153, 123],[13, 74, 46, 32, 75, 47],[48, 54, 24, 14, 55, 25],[42, 45, 15, 32, 46, 16],// 39[20, 147, 117, 4, 148, 118],[40, 75, 47, 7, 76, 48],[43, 54, 24, 22, 55, 25],[10, 45, 15, 67, 46, 16],// 40[19, 148, 118, 6, 149, 119],[18, 75, 47, 31, 76, 48],[34, 54, 24, 34, 55, 25],[20, 45, 15, 61, 46, 16]];QRRSBlock.getRSBlocks function(typeNumber, errorCorrectLevel) {var rsBlock QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel);if (rsBlock undefined) {throw new Error(bad rs block typeNumber: typeNumber /errorCorrectLevel: errorCorrectLevel);}var length rsBlock.length / 3;var list new Array();for (var i 0; i length; i) {var count rsBlock[i * 3 0];var totalCount rsBlock[i * 3 1];var dataCount rsBlock[i * 3 2];for (var j 0; j count; j) {list.push(new QRRSBlock(totalCount, dataCount));}}return list;}QRRSBlock.getRsBlockTable function(typeNumber, errorCorrectLevel) {switch (errorCorrectLevel) {case QRErrorCorrectLevel.L:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 0];case QRErrorCorrectLevel.M:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 1];case QRErrorCorrectLevel.Q:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 2];case QRErrorCorrectLevel.H:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 3];default:return undefined;}}//---------------------------------------------------------------------// QRBitBuffer//---------------------------------------------------------------------function QRBitBuffer() {this.buffer new Array();this.length 0;}QRBitBuffer.prototype {get: function(index) {var bufIndex Math.floor(index / 8);return ((this.buffer[bufIndex] (7 - index % 8)) 1) 1;},put: function(num, length) {for (var i 0; i length; i) {this.putBit(((num (length - i - 1)) 1) 1);}},getLengthInBits: function() {return this.length;},putBit: function(bit) {var bufIndex Math.floor(this.length / 8);if (this.buffer.length bufIndex) {this.buffer.push(0);}if (bit) {this.buffer[bufIndex] | (0x80 (this.length % 8));}this.length;}};//---------------------------------------------------------------------// Support Chinese//---------------------------------------------------------------------function utf16To8(text) {var result ;var c;for (var i 0; i text.length; i) {c text.charCodeAt(i);if (c 0x0001 c 0x007F) {result text.charAt(i);} else if (c 0x07FF) {result String.fromCharCode(0xE0 | c 12 0x0F);result String.fromCharCode(0x80 | c 6 0x3F);result String.fromCharCode(0x80 | c 0 0x3F);} else {result String.fromCharCode(0xC0 | c 6 0x1F);result String.fromCharCode(0x80 | c 0 0x3F);}}return result;}uQRCode {errorCorrectLevel: QRErrorCorrectLevel,defaults: {size: 354,margin: 0,backgroundColor: #ffffff,foregroundColor: #000000,fileType: png, // jpg, pngerrorCorrectLevel: QRErrorCorrectLevel.H,typeNumber: -1},make: function(options) {return new Promise((reslove, reject) {var defaultOptions {canvasId: options.canvasId,componentInstance: options.componentInstance,text: options.text,size: this.defaults.size,margin: this.defaults.margin,backgroundColor: this.defaults.backgroundColor,foregroundColor: this.defaults.foregroundColor,fileType: this.defaults.fileType,errorCorrectLevel: this.defaults.errorCorrectLevel,typeNumber: this.defaults.typeNumber};if (options) {for (var i in options) {defaultOptions[i] options[i];}}options defaultOptions;if (!options.canvasId) {console.error(uQRCode: Please set canvasId!);return;}function createCanvas() {var qrcode new QRCode(options.typeNumber, options.errorCorrectLevel);qrcode.addData(utf16To8(options.text));qrcode.make();var ctx uni.createCanvasContext(options.canvasId, options.componentInstance);ctx.setFillStyle(options.backgroundColor);ctx.fillRect(0, 0, options.size, options.size);var tileW (options.size - options.margin * 2) / qrcode.getModuleCount();var tileH tileW;for (var row 0; row qrcode.getModuleCount(); row) {for (var col 0; col qrcode.getModuleCount(); col) {var style qrcode.isDark(row, col) ? options.foregroundColor : options.backgroundColor;ctx.setFillStyle(style);var x Math.round(col * tileW) options.margin;var y Math.round(row * tileH) options.margin;var w Math.ceil((col 1) * tileW) - Math.floor(col * tileW);var h Math.ceil((row 1) * tileW) - Math.floor(row * tileW);ctx.fillRect(x, y, w, h);}}setTimeout(function() {ctx.draw(false, (function() {setTimeout(function() {uni.canvasToTempFilePath({canvasId: options.canvasId,fileType: options.fileType,width: options.size,height: options.size,destWidth: options.size,destHeight: options.size,success: function(res) {let resData; // 将统一为base64格式let tempFilePath res.tempFilePath; // H5为base64其他为相对路径// #ifdef H5resData tempFilePath;options.success options.success(resData);reslove(resData);// #endif// #ifdef APP-PLUSconst path plus.io.convertLocalFileSystemURL(tempFilePath) // 绝对路径let fileReader new plus.io.FileReader();fileReader.readAsDataURL(path);fileReader.onloadend res {resData res.target.result;options.success options.success(resData);reslove(resData);};// #endif// #ifdef MP-WEIXIN || MP-QQ || MP-TOUTIAOuni.getFileSystemManager().readFile({filePath: tempFilePath,encoding: base64,success: res {resData data:image/png;base64, res.data;options.success options.success(resData);reslove(resData);}})// #endif// #ifndef H5 || APP-PLUS || MP-WEIXIN || MP-QQ || MP-TOUTIAOif (plus) {const path plus.io.convertLocalFileSystemURL(tempFilePath) // 绝对路径let fileReader new plus.io.FileReader();fileReader.readAsDataURL(path);fileReader.onloadend res {resData res.target.result;options.success options.success(resData);reslove(resData);};} else {uni.request({url: tempFilePath,method: GET,responseType: arraybuffer,success: res {resData data:image/png;base64,${uni.arrayBufferToBase64(res.data)}; // 把arraybuffer转成base64options.success options.success(resData);reslove(resData);}})}// #endif},fail: function(error) {options.fail options.fail(error);reject(error);},complete: function(res) {options.complete options.complete(res);}}, options.componentInstance);}, options.text.length 100);})());}, 150);}createCanvas();});}}})()export default uQRCode
