dw中使用 react.js_react.js, react-dom.js - CSDN
  • 上次使用QRCode.js可以来生成二维码,但是我没有找到有文档说明可以对存在的二维码进行扫描解析其中的内容。 幸亏查找到了可行的解决方案,而且很好使哦!就是reqrcode.js 地址:...

    上次使用QRCode.js可以来生成二维码,但是我没有找到有文档说明可以对存在的二维码进行扫描解析其中的内容。

    幸亏查找到了可行的解决方案,而且很好使哦!就是reqrcode.js

    地址:https://gitee.com/weijunw/erweima/tree/master

     reqrcode.js
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    0,0,1)}else{var q=c-b;var o=a-b;var l=d-c+b-a;var i=m-k;var e=q*h-o*i;var n=(l*h-o*f)/e;var g=(q*f-l*i)/e;return new _ae(c-d+n*c,a-d+g*a,d,m-p+n*m,j-p+g*j,p,n,g,1)}};_ae._be=function(f,h,d,g,b,e,a,c){return this._bf(f,h,d,g,b,e,a,c)._fr()};function _bg(b,a){this.bits=b;this.points=a}function Detector(a){this.image=a;this._am=null;this._bi=function(m,l,c,b){var d=Math.abs(b-l)>Math.abs(c-m);if(d){var r=m;m=l;l=r;r=c;c=b;b=r}var j=Math.abs(c-m);var i=Math.abs(b-l);var p=-j>>1;var u=l<b?1:-1;var f=m<c?1:-1;var e=0;for(var h=m,g=l;h!=c;h+=f){var t=d?g:h;var s=d?h:g;if(e==1){if(this.image[t+s*qrcode.width]){e++}}else{if(!this.image[t+s*qrcode.width]){e++}}if(e==3){var o=h-m;var n=g-l;return Math.sqrt((o*o+n*n))}p+=i;if(p>0){if(g==b){break}g+=u;p-=j}}var k=c-m;var q=b-l;return Math.sqrt((k*k+q*q))};this._bh=function(i,g,h,f){var b=this._bi(i,g,h,f);var e=1;var d=i-(h-i);if(d<0){e=i/(i-d);d=0}else{if(d>=qrcode.width){e=(qrcode.width-1-i)/(d-i);d=qrcode.width-1}}var c=Math.floor(g-(f-g)*e);e=1;if(c<0){e=g/(g-c);c=0}else{if(c>=qrcode.height){e=(qrcode.height-1-g)/(c-g);c=qrcode.height-1}}d=Math.floor(i+(d-i)*e);b+=this._bi(i,g,d,c);return b-1};this._bj=function(c,d){var b=this._bh(Math.floor(c.X),Math.floor(c.Y),Math.floor(d.X),Math.floor(d.Y));var e=this._bh(Math.floor(d.X),Math.floor(d.Y),Math.floor(c.X),Math.floor(c.Y));if(isNaN(b)){return e/7}if(isNaN(e)){return b/7}return(b+e)/14};this._bk=function(d,c,b){return(this._bj(d,c)+this._bj(d,b))/2};this.distance=function(d,b){var e=d.X-b.X;var c=d.Y-b.Y;return Math.sqrt((e*e+c*c))};this._bx=function(g,f,d,e){var b=Math.round(this.distance(g,f)/e);var c=Math.round(this.distance(g,d)/e);var h=((b+c)>>1)+7;switch(h&3){case 0:h++;break;case 2:h--;break;case 3:throw"Error"}return h};this._bl=function(g,f,d,j){var k=Math.floor(j*g);var h=Math.max(0,f-k);var i=Math.min(qrcode.width-1,f+k);if(i-h<g*3){throw"Error"}var b=Math.max(0,d-k);var c=Math.min(qrcode.height-1,d+k);var e=new _ak(this.image,h,b,i-h,c-b,g,this._am);return e.find()};this.createTransform=function(l,h,k,
    b,g){
    var j=g-3.5;var i;var f;var e;var c;if(b!=null){i=b.X;f=b.Y;e=c=j-3}else{i=(h.X-l.X)+k.X;f=(h.Y-l.Y)+k.Y;e=c=j}var d=_ae._ag(3.5,3.5,j,3.5,e,c,3.5,j,l.X,l.Y,h.X,h.Y,i,f,k.X,k.Y);return d};this._bz=function(e,b,d){var c=_aa;return c._af(e,d,b)};this._cd=function(q){var j=q._gq;var h=q._gs;var n=q._gp;var d=this._bk(j,h,n);if(d<1){throw"Error"}var r=this._bx(j,h,n,d);var b=_a3._at(r);var k=b._cr-7;var l=null;if(b._as.length>0){var f=h.X-j.X+n.X;var e=h.Y-j.Y+n.Y;var c=1-3/k;var t=Math.floor(j.X+c*(f-j.X));var s=Math.floor(j.Y+c*(e-j.Y));for(var p=4;p<=16;p<<=1){l=this._bl(d,t,s,p);break}}var g=this.createTransform(j,h,n,l,r);var m=this._bz(this.image,g,r);var o;if(l==null){o=new Array(n,j,h)}else{o=new Array(n,j,h,l)}return new _bg(m,o)};this.detect=function(){var b=new _cc()._ce(this.image);return this._cd(b)}}var _ca=21522;var _cb=new Array(new Array(21522,0),new Array(20773,1),new Array(24188,2),new Array(23371,3),new Array(17913,4),new Array(16590,5),new Array(20375,6),new Array(19104,7),new Array(30660,8),new Array(29427,9),new Array(32170,10),new Array(30877,11),new Array(26159,12),new Array(25368,13),new Array(27713,14),new Array(26998,15),new Array(5769,16),new Array(5054,17),new Array(7399,18),new Array(6608,19),new Array(1890,20),new Array(597,21),new Array(3340,22),new Array(2107,23),new Array(13663,24),new Array(12392,25),new Array(16177,26),new Array(14854,27),new Array(9396,28),new Array(8579,29),new Array(11994,30),new Array(11245,31));var _ch=new Array(0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4);function _ax(a){this._cf=_cg.forBits((a>>3)&3);this._fe=(a&7);this.__defineGetter__("_cg",function(){return this._cf});this.__defineGetter__("_dx",function(){return this._fe});this.GetHashCode=function(){return(this._cf.ordinal()<<3)|_fe};this.Equals=function(c){var b=c;return this._cf==b._cf&&this._fe==b._fe}}_ax._gj=function(d,c){d^=c;return _ch[d&15]+_ch[(_ew(d,4)&15)]+_ch[(_ew(d,8)&15)]+_ch[(_ew(d,12)&15)]+_ch[(_ew(d,16)&15)]+_ch[(_ew(d,20)&15)]+_ch[(_ew(d,24)&15)]+_ch[(_ew(d,28)&15)]};_ax._ci=function(a){var
     b=_ax._cj(a);
    if(b!=null){return b}return _ax._cj(a^_ca)};_ax._cj=function(d){var b=4294967295;var a=0;for(var c=0;c<_cb.length;c++){var g=_cb[c];var f=g[0];if(f==d){return new _ax(g[1])}var e=this._gj(d,f);if(e<b){a=g[1];b=e}}if(b<=3){return new _ax(a)}return null};function _cg(a,c,b){this._ff=a;this.bits=c;this.name=b;this.__defineGetter__("Bits",function(){return this.bits});this.__defineGetter__("Name",function(){return this.name});this.ordinal=function(){return this._ff}}_cg.forBits=function(a){if(a<0||a>=FOR_BITS.length){throw"bad arguments"}return FOR_BITS[a]};var L=new _cg(0,1,"L");var M=new _cg(1,0,"M");var Q=new _cg(2,3,"Q");var H=new _cg(3,2,"H");var FOR_BITS=new Array(M,L,H,Q);function _ac(d,a){if(!a){a=d}if(d<1||a<1){throw"Both dimensions must be greater than 0"}this.width=d;this.height=a;var c=d>>5;if((d&31)!=0){c++}this.rowSize=c;this.bits=new Array(c*a);for(var b=0;b<this.bits.length;b++){this.bits[b]=0}this.__defineGetter__("Width",function(){return this.width});this.__defineGetter__("Height",function(){return this.height});this.__defineGetter__("Dimension",function(){if(this.width!=this.height){throw"Can't call getDimension() on a non-square matrix"}return this.width});this._ds=function(e,g){var f=g*this.rowSize+(e>>5);return((_ew(this.bits[f],(e&31)))&1)!=0};this._dq=function(e,g){var f=g*this.rowSize+(e>>5);this.bits[f]|=1<<(e&31)};this.flip=function(e,g){var f=g*this.rowSize+(e>>5);this.bits[f]^=1<<(e&31)};this.clear=function(){var e=this.bits.length;for(var f=0;f<e;f++){this.bits[f]=0}};this._bq=function(g,j,f,m){if(j<0||g<0){throw"Left and top must be nonnegative"}if(m<1||f<1){throw"Height and width must be at least 1"}var l=g+f;var e=j+m;if(e>this.height||l>this.width){throw"The region must fit inside the matrix"}for(var i=j;i<e;i++){var h=i*this.rowSize;for(var k=g;k<l;k++){this.bits[h+(k>>5)]|=1<<(k&31)}}}}function _dl(a,b){this._dv=a;this._dw=b;this.__defineGetter__("_du",function(){return this._dv});this.__defineGetter__("Codewords",function(){return this._dw})}_dl._gn=function(c,h,r)
    {
    if(c.length!=h._dp){throw"bad arguments"}var k=h._bu(r);var e=0;var d=k._fb();for(var q=0;q<d.length;q++){e+=d[q].Count}var l=new Array(e);var n=0;for(var o=0;o<d.length;o++){var f=d[o];for(var q=0;q<f.Count;q++){var m=f._dm;var s=k._bo+m;l[n++]=new _dl(m,new Array(s))}}var t=l[0]._dw.length;var b=l.length-1;while(b>=0){var v=l[b]._dw.length;if(v==t){break}b--}b++;var g=t-k._bo;var a=0;for(var q=0;q<g;q++){for(var o=0;o<n;o++){l[o]._dw[q]=c[a++]}}for(var o=b;o<n;o++){l[o]._dw[g]=c[a++]}var p=l[0]._dw.length;for(var q=g;q<p;q++){for(var o=0;o<n;o++){var u=o<b?q:q+1;l[o]._dw[u]=c[a++]}}return l};function _cl(a){var b=a.Dimension;if(b<21||(b&3)!=1){throw"Error _cl"}this._au=a;this._cp=null;this._co=null;this._dk=function(d,c,e){return this._au._ds(d,c)?(e<<1)|1:e<<1};this._cm=function(){if(this._co!=null){return this._co}var g=0;for(var e=0;e<6;e++){g=this._dk(e,8,g)}g=this._dk(7,8,g);g=this._dk(8,8,g);g=this._dk(8,7,g);for(var c=5;c>=0;c--){g=this._dk(8,c,g)}this._co=_ax._ci(g);if(this._co!=null){return this._co}var f=this._au.Dimension;g=0;var d=f-8;for(var e=f-1;e>=d;e--){g=this._dk(e,8,g)}for(var c=f-7;c<f;c++){g=this._dk(8,c,g)}this._co=_ax._ci(g);if(this._co!=null){return this._co}throw"Error _cm"};this._cq=function(){if(this._cp!=null){return this._cp}var h=this._au.Dimension;var f=(h-17)>>2;if(f<=6){return _a3._av(f)}var g=0;var e=h-11;for(var c=5;c>=0;c--){for(var d=h-9;d>=e;d--){g=this._dk(d,c,g)}}this._cp=_a3._aw(g);if(this._cp!=null&&this._cp._cr==h){return this._cp}g=0;for(var d=5;d>=0;d--){for(var c=h-9;c>=e;c--){g=this._dk(d,c,g)}}this._cp=_a3._aw(g);if(this._cp!=null&&this._cp._cr==h){return this._cp}throw"Error _cq"};this._gk=function(){var q=this._cm();var o=this._cq();var c=_dx._gl(q._dx);var f=this._au.Dimension;c._dj(this._au,f);var k=o._aq();var n=true;var r=new Array(o._dp);var m=0;var p=0;var h=0;for(var e=f-1;e>0;e-=2){if(e==6){e--}for(var l=0;l<f;l++){var g=n?f-1-l:l;for(var d=0;d<2;d++){if(!k._ds(e-d,g)){h++;p<<=1;if(this._au._ds(e-d,g)){p|=1}if(h==8){r[m++]=p;h=0;p=0}}}}n^=true}if(m!=o.
    _dp){
    throw"Error _gk"}return r}}var _dx={};_dx._gl=function(a){if(a<0||a>7){throw"bad arguments"}return _dx._dy[a]};function _fg(){this._dj=function(c,d){for(var b=0;b<d;b++){for(var a=0;a<d;a++){if(this._fw(b,a)){c.flip(a,b)}}}};this._fw=function(b,a){return((b+a)&1)==0}}function _fh(){this._dj=function(c,d){for(var b=0;b<d;b++){for(var a=0;a<d;a++){if(this._fw(b,a)){c.flip(a,b)}}}};this._fw=function(b,a){return(b&1)==0}}function _fi(){this._dj=function(c,d){for(var b=0;b<d;b++){for(var a=0;a<d;a++){if(this._fw(b,a)){c.flip(a,b)}}}};this._fw=function(b,a){return a%3==0}}function _fj(){this._dj=function(c,d){for(var b=0;b<d;b++){for(var a=0;a<d;a++){if(this._fw(b,a)){c.flip(a,b)}}}};this._fw=function(b,a){return(b+a)%3==0}}function _fk(){this._dj=function(c,d){for(var b=0;b<d;b++){for(var a=0;a<d;a++){if(this._fw(b,a)){c.flip(a,b)}}}};this._fw=function(b,a){return(((_ew(b,1))+(a/3))&1)==0}}function _fl(){this._dj=function(c,d){for(var b=0;b<d;b++){for(var a=0;a<d;a++){if(this._fw(b,a)){c.flip(a,b)}}}};this._fw=function(c,b){var a=c*b;return(a&1)+(a%3)==0}}function _fm(){this._dj=function(c,d){for(var b=0;b<d;b++){for(var a=0;a<d;a++){if(this._fw(b,a)){c.flip(a,b)}}}};this._fw=function(c,b){var a=c*b;return(((a&1)+(a%3))&1)==0}}function _fn(){this._dj=function(c,d){for(var b=0;b<d;b++){for(var a=0;a<d;a++){if(this._fw(b,a)){c.flip(a,b)}}}};this._fw=function(b,a){return((((b+a)&1)+((b*a)%3))&1)==0}}_dx._dy=new Array(new _fg(),new _fh(),new _fi(),new _fj(),new _fk(),new _fl(),new _fm(),new _fn());function _db(a){this._fa=a;this.decode=function(j,f){var c=new _bp(this._fa,j);var p=new Array(f);for(var g=0;g<p.length;g++){p[g]=0}var m=false;var d=true;for(var g=0;g<f;g++){var q=c.evaluateAt(this._fa.exp(m?g+1:g));p[p.length-1-g]=q;if(q!=0){d=false}}if(d){return}var b=new _bp(this._fa,p);var l=this._eb(this._fa._ba(f,1),b,f);var o=l[0];var n=l[1];var k=this._ey(o);var e=this._di(n,k,m);for(var g=0;g<k.length;g++){var h=j.length-1-this._fa.log(k[g]);if(h<0){throw"ReedSolomonException Bad error location"}j[h]=_az._bd(j[
    h],e[g])}};
    this._eb=function(z,y,f){if(z._ec<y._ec){var w=z;z=y;y=w}var B=z;var k=y;var o=this._fa.One;var j=this._fa.Zero;var e=this._fa.Zero;var i=this._fa.One;while(k._ec>=Math.floor(f/2)){var x=B;var g=o;var v=e;B=k;o=j;e=i;if(B.Zero){throw"r_{i-1} was zero"}k=x;var m=this._fa.Zero;var p=B._ex(B._ec);var h=this._fa.inverse(p);while(k._ec>=B._ec&&!k.Zero){var c=k._ec-B._ec;var A=this._fa.multiply(k._ex(k._ec),h);m=m._bd(this._fa._ba(c,A));k=k._bd(B._dc(c,A))}j=m.multiply1(o)._bd(g);i=m.multiply1(e)._bd(v)}var u=i._ex(0);if(u==0){throw"ReedSolomonException sigmaTilde(0) was zero"}var d=this._fa.inverse(u);var n=i.multiply2(d);var l=k.multiply2(d);return new Array(n,l)};this._ey=function(f){var g=f._ec;if(g==1){return new Array(f._ex(1))}var b=new Array(g);var d=0;for(var c=1;c<256&&d<g;c++){if(f.evaluateAt(c)==0){b[d]=this._fa.inverse(c);d++}}if(d!=g){throw"Error locator degree does not match number of roots"}return b};this._di=function(f,h,g){var k=h.length;var l=new Array(k);for(var e=0;e<k;e++){var b=this._fa.inverse(h[e]);var c=1;for(var d=0;d<k;d++){if(e!=d){c=this._fa.multiply(c,_az._bd(1,this._fa.multiply(h[d],b)))}}l[e]=this._fa.multiply(f.evaluateAt(b),this._fa.inverse(c));if(g){l[e]=this._fa.multiply(l[e],b)}}return l}}function _bp(f,e){if(e==null||e.length==0){throw"bad arguments"}this._fa=f;var c=e.length;if(c>1&&e[0]==0){var d=1;while(d<c&&e[d]==0){d++}if(d==c){this._dd=f.Zero._dd}else{this._dd=new Array(c-d);for(var b=0;b<this._dd.length;b++){this._dd[b]=0}for(var a=0;a<this._dd.length;a++){this._dd[a]=e[d+a]}}}else{this._dd=e}this.__defineGetter__("Zero",function(){return this._dd[0]==0});this.__defineGetter__("_ec",function(){return this._dd.length-1});this.__defineGetter__("Coefficients",function(){return this._dd});this._ex=function(g){return this._dd[this._dd.length-1-g]};this.evaluateAt=function(h){if(h==0){return this._ex(0)}var l=this._dd.length;if(h==1){var g=0;for(var k=0;k<l;k++){g=_az._bd(g,this._dd[k])}return g}var j=this._dd[0];for(var k=1;k<l;k++){j=_az._bd(this._fa.multiply(h,j),t
    his._dd[k])}
    return j};this._bd=function(g){if(this._fa!=g._fa){throw"GF256Polys do not have same _az _fa"}if(this.Zero){return g}if(g.Zero){return this}var o=this._dd;var n=g._dd;if(o.length>n.length){var j=o;o=n;n=j}var h=new Array(n.length);var k=n.length-o.length;for(var m=0;m<k;m++){h[m]=n[m]}for(var l=k;l<n.length;l++){h[l]=_az._bd(o[l-k],n[l])}return new _bp(f,h)};this.multiply1=function(o){if(this._fa!=o._fa){throw"GF256Polys do not have same _az _fa"}if(this.Zero||o.Zero){return this._fa.Zero}var q=this._dd;var g=q.length;var l=o._dd;var n=l.length;var p=new Array(g+n-1);for(var m=0;m<g;m++){var h=q[m];for(var k=0;k<n;k++){p[m+k]=_az._bd(p[m+k],this._fa.multiply(h,l[k]))}}return new _bp(this._fa,p)};this.multiply2=function(g){if(g==0){return this._fa.Zero}if(g==1){return this}var j=this._dd.length;var k=new Array(j);for(var h=0;h<j;h++){k[h]=this._fa.multiply(this._dd[h],g)}return new _bp(this._fa,k)};this._dc=function(l,g){if(l<0){throw"bad arguments"}if(g==0){return this._fa.Zero}var j=this._dd.length;var k=new Array(j+l);for(var h=0;h<k.length;h++){k[h]=0}for(var h=0;h<j;h++){k[h]=this._fa.multiply(this._dd[h],g)}return new _bp(this._fa,k)};this.divide=function(l){if(this._fa!=l._fa){throw"GF256Polys do not have same _az _fa"}if(l.Zero){throw"Divide by 0"}var j=this._fa.Zero;var o=this;var g=l._ex(l._ec);var n=this._fa.inverse(g);while(o._ec>=l._ec&&!o.Zero){var m=o._ec-l._ec;var h=this._fa.multiply(o._ex(o._ec),n);var i=l._dc(m,h);var k=this._fa._ba(m,h);j=j._bd(k);o=o._bd(i)}return new Array(j,o)}}function _az(b){this._gh=new Array(256);this._gi=new Array(256);var a=1;for(var e=0;e<256;e++){this._gh[e]=a;a<<=1;if(a>=256){a^=b}}for(var e=0;e<255;e++){this._gi[this._gh[e]]=e}var d=new Array(1);d[0]=0;this.zero=new _bp(this,new Array(d));var c=new Array(1);c[0]=1;this.one=new _bp(this,new Array(c));this.__defineGetter__("Zero",function(){return this.zero});this.__defineGetter__("One",function(){return this.one});this._ba=function(j,f){if(j<0){throw"bad arguments"}if(f==0){return zero}var h=new Array(j+
    1);for(var g=0;g<h.length;g++){h[g]=0}h[0]=f;return new _bp(this,h)};this.exp=function(f){return this._gh[f]};this.log=function(f){if(f==0){throw"bad arguments"}return this._gi[f]};this.inverse=function(f){if(f==0){throw"System.ArithmeticException"}return this._gh[255-this._gi[f]]};this.multiply=function(g,f){if(g==0||f==0){return 0}if(g==1){return f}if(f==1){return g}return this._gh[(this._gi[g]+this._gi[f])%255]}}_az._bb=new _az(285);_az._bc=new _az(301);_az._bd=function(d,c){return d^c};var Decoder={};Decoder.rsDecoder=new _db(_az._bb);Decoder.correctErrors=function(g,b){var d=g.length;var f=new Array(d);for(var e=0;e<d;e++){f[e]=g[e]&255}var a=g.length-b;try{Decoder.rsDecoder.decode(f,a)}catch(c){throw c}for(var e=0;e<b;e++){g[e]=f[e]}};Decoder.decode=function(q){var b=new _cl(q);var o=b._cq();var c=b._cm()._cg;var p=b._gk();var a=_dl._gn(p,o,c);var f=0;for(var k=0;k<a.length;k++){f+=a[k]._du}var e=new Array(f);var n=0;for(var h=0;h<a.length;h++){var m=a[h];var d=m.Codewords;var g=m._du;Decoder.correctErrors(d,g);for(var k=0;k<g;k++){e[n++]=d[k]}}var l=new QRCodeDataBlockReader(e,o._fd,c.Bits);return l};var qrcode={};qrcode.imagedata=null;qrcode.width=0;qrcode.height=0;qrcode.qrCodeSymbol=null;qrcode.debug=false;qrcode.maxImgSize=1024*1024;qrcode._eo=[[10,9,8,8],[12,11,16,10],[14,13,16,12]];qrcode.callback=null;qrcode.vidSuccess=function(a){qrcode.localstream=a;if(qrcode.webkit){qrcode.video.src=window.webkitURL.createObjectURL(a)}else{if(qrcode.moz){qrcode.video.mozSrcObject=a;qrcode.video.play()}else{qrcode.video.src=a}}qrcode.gUM=true;qrcode.canvas_qr2=document.createElement("canvas");qrcode.canvas_qr2.id="qr-canvas";qrcode.qrcontext2=qrcode.canvas_qr2.getContext("2d");qrcode.canvas_qr2.width=qrcode.video.videoWidth;qrcode.canvas_qr2.height=qrcode.video.videoHeight;setTimeout(qrcode.captureToCanvas,500)};qrcode.vidError=function(a){qrcode.gUM=false;return};qrcode.captureToCanvas=function(){if(qrcode.gUM){try{if(qrcode.video.videoWidth==0){setTimeout(qrcode.captureToCanvas,500);return}else{qrcode.canvas_qr
    2.width=qrcode.video.videoWidth;qrcode.canvas_qr2.height=qrcode.video.videoHeight}qrcode.qrcontext2.drawImage(qrcode.video,0,0);try{qrcode.decode()}catch(a){console.log(a);setTimeout(qrcode.captureToCanvas,500)}}catch(a){console.log(a);setTimeout(qrcode.captureToCanvas,500)}}};qrcode.setWebcam=function(c){var d=navigator;qrcode.video=document.getElementById(c);var a=true;if(navigator.mediaDevices&&navigator.mediaDevices.enumerateDevices){try{navigator.mediaDevices.enumerateDevices().then(function(e){e.forEach(function(f){console.log("deb1");if(f.kind==="videoinput"){if(f.label.toLowerCase().search("back")>-1){a=[{sourceId:f.deviceId}]}}console.log(f.kind+": "+f.label+" id = "+f.deviceId)})})}catch(b){console.log(b)}}else{console.log("no navigator.mediaDevices.enumerateDevices")}if(d.getUserMedia){d.getUserMedia({video:a,audio:false},qrcode.vidSuccess,qrcode.vidError)}else{if(d.webkitGetUserMedia){qrcode.webkit=true;d.webkitGetUserMedia({video:a,audio:false},qrcode.vidSuccess,qrcode.vidError)}else{if(d.mozGetUserMedia){qrcode.moz=true;d.mozGetUserMedia({video:a,audio:false},qrcode.vidSuccess,qrcode.vidError)}}}};qrcode.decode=function(d){if(arguments.length==0){if(qrcode.canvas_qr2){var b=qrcode.canvas_qr2;var a=qrcode.qrcontext2}else{var b=document.getElementById("qr-canvas");var a=b.getContext("2d")}qrcode.width=b.width;qrcode.height=b.height;qrcode.imagedata=a.getImageData(0,0,qrcode.width,qrcode.height);qrcode.result=qrcode.process(a);if(qrcode.callback!=null){qrcode.callback(qrcode.result)}return qrcode.result}else{var c=new Image();c.crossOrigin="Anonymous";c.οnlοad=function(){var g=document.getElementById("out-canvas");if(g!=null){var j=g.getContext("2d");j.clearRect(0,0,320,240);j.drawImage(c,0,0,320,240)}var i=document.createElement("canvas");var h=i.getContext("2d");var f=c.height;var l=c.width;if(c.width*c.height>qrcode.maxImgSize){var k=c.width/c.height;f=Math.sqrt(qrcode.maxImgSize/k);l=k*f}i.width=l;i.height=f;h.drawImage(c,0,0,i.width,i.height);qrcode.width=i.width;qrcode.height=i.height;try{qrcode
    .imagedata=h.getImageData(
    0,0,i.width,i.height)}catch(m){qrcode.result="Cross domain image reading not supported in your browser! Save it to your computer then drag and drop the file!";if(qrcode.callback!=null){qrcode.callback(qrcode.result)}return}try{qrcode.result=qrcode.process(h)}catch(m){console.log(m);qrcode.result="error decoding QR Code"}if(qrcode.callback!=null){qrcode.callback(qrcode.result)}};c.οnerrοr=function(){if(qrcode.callback!=null){qrcode.callback("Failed to load the image")}};c.src=d}};qrcode.isUrl=function(a){var b=/(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;return b.test(a)};qrcode.decode_url=function(b){var d="";try{d=escape(b)}catch(c){console.log(c);d=b}var a="";try{a=decodeURIComponent(d)}catch(c){console.log(c);a=d}return a};qrcode.decode_utf8=function(a){if(qrcode.isUrl(a)){return qrcode.decode_url(a)}else{return a}};qrcode.process=function(q){var a=new Date().getTime();var c=qrcode.grayScaleToBitmap(qrcode.grayscale());if(qrcode.debug){for(var m=0;m<qrcode.height;m++){for(var n=0;n<qrcode.width;n++){var o=(n*4)+(m*qrcode.width*4);qrcode.imagedata.data[o]=c[n+m*qrcode.width]?0:0;qrcode.imagedata.data[o+1]=c[n+m*qrcode.width]?0:0;qrcode.imagedata.data[o+2]=c[n+m*qrcode.width]?255:0}}q.putImageData(qrcode.imagedata,0,0)}var h=new Detector(c);var p=h.detect();if(qrcode.debug){for(var m=0;m<p.bits.Height;m++){for(var n=0;n<p.bits.Width;n++){var o=(n*4*2)+(m*2*qrcode.width*4);qrcode.imagedata.data[o]=p.bits._ds(n,m)?0:0;qrcode.imagedata.data[o+1]=p.bits._ds(n,m)?0:0;qrcode.imagedata.data[o+2]=p.bits._ds(n,m)?255:0}}q.putImageData(qrcode.imagedata,0,0)}var k=Decoder.decode(p.bits);var g=k.DataByte;var l="";for(var f=0;f<g.length;f++){for(var e=0;e<g[f].length;e++){l+=String.fromCharCode(g[f][e])}}var d=new Date().getTime();var b=d-a;console.log(b);return qrcode.decode_utf8(l)};qrcode.getPixel=function(b,d){if(qrcode.width<b){throw"point error"}if(qrcode.height<d){throw"point error"}var a=(b*4)+(d*qrcode.width*4);var c=(qrcode.imagedata.data[a]*33+qrcod
    e.imagedata.data[a+
    1]*34+qrcode.imagedata.data[a+2]*33)/100;return c};qrcode.binarize=function(d){var c=new Array(qrcode.width*qrcode.height);for(var e=0;e<qrcode.height;e++){for(var b=0;b<qrcode.width;b++){var a=qrcode.getPixel(b,e);c[b+e*qrcode.width]=a<=d?true:false}}return c};qrcode._em=function(d){var c=4;var k=Math.floor(qrcode.width/c);var j=Math.floor(qrcode.height/c);var f=new Array(c);for(var g=0;g<c;g++){f[g]=new Array(c);for(var e=0;e<c;e++){f[g][e]=new Array(0,0)}}for(var o=0;o<c;o++){for(var a=0;a<c;a++){f[a][o][0]=255;for(var l=0;l<j;l++){for(var n=0;n<k;n++){var h=d[k*a+n+(j*o+l)*qrcode.width];if(h<f[a][o][0]){f[a][o][0]=h}if(h>f[a][o][1]){f[a][o][1]=h}}}}}var m=new Array(c);for(var b=0;b<c;b++){m[b]=new Array(c)}for(var o=0;o<c;o++){for(var a=0;a<c;a++){m[a][o]=Math.floor((f[a][o][0]+f[a][o][1])/2)}}return m};qrcode.grayScaleToBitmap=function(f){var k=qrcode._em(f);var b=k.length;var e=Math.floor(qrcode.width/b);var d=Math.floor(qrcode.height/b);var h=new ArrayBuffer(qrcode.width*qrcode.height);var c=new Uint8Array(h);for(var j=0;j<b;j++){for(var a=0;a<b;a++){for(var g=0;g<d;g++){for(var i=0;i<e;i++){c[e*a+i+(d*j+g)*qrcode.width]=(f[e*a+i+(d*j+g)*qrcode.width]<k[a][j])?true:false}}}}return c};qrcode.grayscale=function(){var e=new ArrayBuffer(qrcode.width*qrcode.height);var c=new Uint8Array(e);for(var d=0;d<qrcode.height;d++){for(var b=0;b<qrcode.width;b++){var a=qrcode.getPixel(b,d);c[b+d*qrcode.width]=a}}return c};function _ew(a,b){if(a>=0){return a>>b}else{return(a>>b)+(2<<~b)}}var _gf=3;var _eh=57;var _el=8;var _eg=2;qrcode._er=function(c){function b(m,k){var n=m.X-k.X;var l=m.Y-k.Y;return Math.sqrt((n*n+l*l))}function d(k,o,n){var m=o.x;var l=o.y;return((n.x-m)*(k.y-l))-((n.y-l)*(k.x-m))}var i=b(c[0],c[1]);var f=b(c[1],c[2]);var e=b(c[0],c[2]);var a,j,h;if(f>=i&&f>=e){j=c[0];a=c[1];h=c[2]}else{if(e>=f&&e>=i){j=c[1];a=c[0];h=c[2]}else{j=c[2];a=c[0];h=c[1]}}if(d(a,j,h)<0){var g=a;a=h;h=g}c[0]=a;c[1]=j;c[2]=h};function _cz(c,a,b){this.x=c;this.y=a;this.count=1;this._aj=b;this.__defineGetter__("
    _ei",function(){return this._aj});this.__defineGetter__("Count",function(){return this.count});this.__defineGetter__("X",function(){return this.x});this.__defineGetter__("Y",function(){return this.y});this._ek=function(){this.count++};this._ev=function(f,e,d){if(Math.abs(e-this.y)<=f&&Math.abs(d-this.x)<=f){var g=Math.abs(f-this._aj);return g<=1||g/this._aj<=1}return false}}function _es(a){this._go=a[0];this._gu=a[1];this._gr=a[2];this.__defineGetter__("_gp",function(){return this._go});this.__defineGetter__("_gq",function(){return this._gu});this.__defineGetter__("_gs",function(){return this._gr})}function _cc(){this.image=null;this._cv=[];this._ge=false;this._al=new Array(0,0,0,0,0);this._am=null;this.__defineGetter__("_da",function(){this._al[0]=0;this._al[1]=0;this._al[2]=0;this._al[3]=0;this._al[4]=0;return this._al});this._ao=function(f){var b=0;for(var d=0;d<5;d++){var e=f[d];if(e==0){return false}b+=e}if(b<7){return false}var c=Math.floor((b<<_el)/7);var a=Math.floor(c/2);return Math.abs(c-(f[0]<<_el))<a&&Math.abs(c-(f[1]<<_el))<a&&Math.abs(3*c-(f[2]<<_el))<3*a&&Math.abs(c-(f[3]<<_el))<a&&Math.abs(c-(f[4]<<_el))<a};this._an=function(b,a){return(a-b[4]-b[3])-b[2]/2};this._ap=function(a,j,d,g){var c=this.image;var h=qrcode.height;var b=this._da;var f=a;while(f>=0&&c[j+f*qrcode.width]){b[2]++;f--}if(f<0){return NaN}while(f>=0&&!c[j+f*qrcode.width]&&b[1]<=d){b[1]++;f--}if(f<0||b[1]>d){return NaN}while(f>=0&&c[j+f*qrcode.width]&&b[0]<=d){b[0]++;f--}if(b[0]>d){return NaN}f=a+1;while(f<h&&c[j+f*qrcode.width]){b[2]++;f++}if(f==h){return NaN}while(f<h&&!c[j+f*qrcode.width]&&b[3]<d){b[3]++;f++}if(f==h||b[3]>=d){return NaN}while(f<h&&c[j+f*qrcode.width]&&b[4]<d){b[4]++;f++}if(b[4]>=d){return NaN}var e=b[0]+b[1]+b[2]+b[3]+b[4];if(5*Math.abs(e-g)>=2*g){return NaN}return this._ao(b)?this._an(b,f):NaN};this._ej=function(b,a,e,h){var d=this.image;var i=qrcode.width;var c=this._da;var g=b;while(g>=0&&d[g+a*qrcode.width]){c[2]++;g--}if(g<0){return NaN}while(g>=0&&!d[g+a*qrcode.width]&&c[1]<=e){c[1]++;g--}if(g<0||c[1]>e){r
    eturn NaN}while(g>=0&&d[g+a*qrcode.width]&&c[0]<=e){c[0]++;g--}if(c[0]>e){return NaN}g=b+1;while(g<i&&d[g+a*qrcode.width]){c[2]++;g++}if(g==i){return NaN}while(g<i&&!d[g+a*qrcode.width]&&c[3]<e){c[3]++;g++}if(g==i||c[3]>=e){return NaN}while(g<i&&d[g+a*qrcode.width]&&c[4]<e){c[4]++;g++}if(c[4]>=e){return NaN}var f=c[0]+c[1]+c[2]+c[3]+c[4];if(5*Math.abs(f-h)>=h){return NaN}return this._ao(c)?this._an(c,g):NaN};this._cu=function(c,f,e){var d=c[0]+c[1]+c[2]+c[3]+c[4];var n=this._an(c,e);var b=this._ap(f,Math.floor(n),c[2],d);if(!isNaN(b)){n=this._ej(Math.floor(n),Math.floor(b),c[2],d);if(!isNaN(n)){var l=d/7;var m=false;var h=this._cv.length;for(var g=0;g<h;g++){var a=this._cv[g];if(a._ev(l,b,n)){a._ek();m=true;break}}if(!m){var k=new _cz(n,b,l);this._cv.push(k);if(this._am!=null){this._am._ep(k)}}return true}}return false};this._ee=function(){var h=this._cv.length;if(h<3){throw"Couldn't find enough finder patterns (found "+h+")"}if(h>3){var b=0;var j=0;for(var d=0;d<h;d++){var g=this._cv[d]._ei;b+=g;j+=(g*g)}var a=b/h;this._cv.sort(function(m,l){var k=Math.abs(l._ei-a);var i=Math.abs(m._ei-a);if(k<i){return(-1)}else{if(k==i){return 0}else{return 1}}});var e=Math.sqrt(j/h-a*a);var c=Math.max(0.2*a,e);for(var d=this._cv.length-1;d>=0;d--){var f=this._cv[d];if(Math.abs(f._ei-a)>c){this._cv.splice(d,1)}}}if(this._cv.length>3){this._cv.sort(function(k,i){if(k.count>i.count){return -1}if(k.count<i.count){return 1}return 0})}return new Array(this._cv[0],this._cv[1],this._cv[2])};this._eq=function(){var b=this._cv.length;if(b<=1){return 0}var c=null;for(var d=0;d<b;d++){var a=this._cv[d];if(a.Count>=_eg){if(c==null){c=a}else{this._ge=true;return Math.floor((Math.abs(c.X-a.X)-Math.abs(c.Y-a.Y))/2)}}}return 0};this._cx=function(){var g=0;var c=0;var a=this._cv.length;for(var d=0;d<a;d++){var f=this._cv[d];if(f.Count>=_eg){g++;c+=f._ei}}if(g<3){return false}var e=c/a;var b=0;for(var d=0;d<a;d++){f=this._cv[d];b+=Math.abs(f._ei-e)}return b<=0.05*c};this._ce=function(e){var o=false;this.image=e;var n=qrcode.height;var k=qrcode.
    width;
    var a=Math.floor((3*n)/(4*_eh));if(a<_gf||o){a=_gf}var g=false;var d=new Array(5);for(var h=a-1;h<n&&!g;h+=a){d[0]=0;d[1]=0;d[2]=0;d[3]=0;d[4]=0;var b=0;for(var f=0;f<k;f++){if(e[f+h*qrcode.width]){if((b&1)==1){b++}d[b]++}else{if((b&1)==0){if(b==4){if(this._ao(d)){var c=this._cu(d,h,f);if(c){a=2;if(this._ge){g=this._cx()}else{var m=this._eq();if(m>d[2]){h+=m-d[2]-a;f=k-1}}}else{do{f++}while(f<k&&!e[f+h*qrcode.width]);f--}b=0;d[0]=0;d[1]=0;d[2]=0;d[3]=0;d[4]=0}else{d[0]=d[2];d[1]=d[3];d[2]=d[4];d[3]=1;d[4]=0;b=3}}else{d[++b]++}}else{d[b]++}}}if(this._ao(d)){var c=this._cu(d,h,k);if(c){a=d[0];if(this._ge){g=_cx()}}}}var l=this._ee();qrcode._er(l);return new _es(l)}}function _ai(c,a,b){this.x=c;this.y=a;this.count=1;this._aj=b;this.__defineGetter__("_ei",function(){return this._aj});this.__defineGetter__("Count",function(){return this.count});this.__defineGetter__("X",function(){return Math.floor(this.x)});this.__defineGetter__("Y",function(){return Math.floor(this.y)});this._ek=function(){this.count++};this._ev=function(f,e,d){if(Math.abs(e-this.y)<=f&&Math.abs(d-this.x)<=f){var g=Math.abs(f-this._aj);return g<=1||g/this._aj<=1}return false}}function _ak(g,c,b,f,a,e,d){this.image=g;this._cv=new Array();this.startX=c;this.startY=b;this.width=f;this.height=a;this._ef=e;this._al=new Array(0,0,0);this._am=d;this._an=function(i,h){return(h-i[2])-i[1]/2};this._ao=function(l){var k=this._ef;var h=k/2;for(var j=0;j<3;j++){if(Math.abs(k-l[j])>=h){return false}}return true};this._ap=function(h,q,l,o){var k=this.image;var p=qrcode.height;var j=this._al;j[0]=0;j[1]=0;j[2]=0;var n=h;while(n>=0&&k[q+n*qrcode.width]&&j[1]<=l){j[1]++;n--}if(n<0||j[1]>l){return NaN}while(n>=0&&!k[q+n*qrcode.width]&&j[0]<=l){j[0]++;n--}if(j[0]>l){return NaN}n=h+1;while(n<p&&k[q+n*qrcode.width]&&j[1]<=l){j[1]++;n++}if(n==p||j[1]>l){return NaN}while(n<p&&!k[q+n*qrcode.width]&&j[2]<=l){j[2]++;n++}if(j[2]>l){return NaN}var m=j[0]+j[1]+j[2];if(5*Math.abs(m-o)>=2*o){return NaN}return this._ao(j)?this._an(j,n):NaN};this._cu=function(l,o,n){var m=l[0
    ]+l[
    1]+l[2];var t=this._an(l,n);var k=this._ap(o,Math.floor(t),2*l[1],m);if(!isNaN(k)){var s=(l[0]+l[1]+l[2])/3;var q=this._cv.length;for(var p=0;p<q;p++){var h=this._cv[p];if(h._ev(s,k,t)){return new _ai(t,k,s)}}var r=new _ai(t,k,s);this._cv.push(r);if(this._am!=null){this._am._ep(r)}}return null};this.find=function(){var p=this.startX;var s=this.height;var q=p+f;var r=b+(s>>1);var m=new Array(0,0,0);for(var k=0;k<s;k++){var o=r+((k&1)==0?((k+1)>>1):-((k+1)>>1));m[0]=0;m[1]=0;m[2]=0;var n=p;while(n<q&&!g[n+qrcode.width*o]){n++}var h=0;while(n<q){if(g[n+o*qrcode.width]){if(h==1){m[h]++}else{if(h==2){if(this._ao(m)){var l=this._cu(m,o,n);if(l!=null){return l}}m[0]=m[2];m[1]=1;m[2]=0;h=1}else{m[++h]++}}}else{if(h==1){h++}m[h]++}n++}if(this._ao(m)){var l=this._cu(m,o,q);if(l!=null){return l}}}if(!(this._cv.length==0)){return this._cv[0]}throw"Couldn't find enough alignment patterns"}}function QRCodeDataBlockReader(c,a,b){this._ed=0;this._cw=7;this.dataLength=0;this.blocks=c;this._en=b;if(a<=9){this.dataLengthMode=0}else{if(a>=10&&a<=26){this.dataLengthMode=1}else{if(a>=27&&a<=40){this.dataLengthMode=2}}}this._gd=function(f){var k=0;if(f<this._cw+1){var m=0;for(var e=0;e<f;e++){m+=(1<<e)}m<<=(this._cw-f+1);k=(this.blocks[this._ed]&m)>>(this._cw-f+1);this._cw-=f;return k}else{if(f<this._cw+1+8){var j=0;for(var e=0;e<this._cw+1;e++){j+=(1<<e)}k=(this.blocks[this._ed]&j)<<(f-(this._cw+1));this._ed++;k+=((this.blocks[this._ed])>>(8-(f-(this._cw+1))));this._cw=this._cw-f%8;if(this._cw<0){this._cw=8+this._cw}return k}else{if(f<this._cw+1+16){var j=0;var h=0;for(var e=0;e<this._cw+1;e++){j+=(1<<e)}var g=(this.blocks[this._ed]&j)<<(f-(this._cw+1));this._ed++;var d=this.blocks[this._ed]<<(f-(this._cw+1+8));this._ed++;for(var e=0;e<f-(this._cw+1+8);e++){h+=(1<<e)}h<<=8-(f-(this._cw+1+8));var l=(this.blocks[this._ed]&h)>>(8-(f-(this._cw+1+8)));k=g+d+l;this._cw=this._cw-(f-8)%8;if(this._cw<0){this._cw=8+this._cw}return k}else{return 0}}}};this.NextMode=function(){if((this._ed>this.blocks.length-this._en-2)){return 0}else{return
     
    this._gd(4)}};this.getDataLength=function(d){var e=0;while(true){if((d>>e)==1){break}e++}return this._gd(qrcode._eo[this.dataLengthMode][e])};this.getRomanAndFigureString=function(h){var f=h;var g=0;var j="";var d=new Array("0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"," ","$","%","*","+","-",".","/",":");do{if(f>1){g=this._gd(11);var i=Math.floor(g/45);var e=g%45;j+=d[i];j+=d[e];f-=2}else{if(f==1){g=this._gd(6);j+=d[g];f-=1}}}while(f>0);return j};this.getFigureString=function(f){var d=f;var e=0;var g="";do{if(d>=3){e=this._gd(10);if(e<100){g+="0"}if(e<10){g+="0"}d-=3}else{if(d==2){e=this._gd(7);if(e<10){g+="0"}d-=2}else{if(d==1){e=this._gd(4);d-=1}}}g+=e}while(d>0);return g};this.get8bitByteArray=function(g){var e=g;var f=0;var d=new Array();do{f=this._gd(8);d.push(f);e--}while(e>0);return d};this.getKanjiString=function(j){var g=j;var i=0;var h="";do{i=_gd(13);var e=i%192;var f=i/192;var k=(f<<8)+e;var d=0;if(k+33088<=40956){d=k+33088}else{d=k+49472}h+=String.fromCharCode(d);g--}while(g>0);return h};this.__defineGetter__("DataByte",function(){var h=new Array();var e=1;var f=2;var d=4;var o=8;do{var l=this.NextMode();if(l==0){if(h.length>0){break}else{throw"Empty data block"}}if(l!=e&&l!=f&&l!=d&&l!=o){throw"Invalid mode: "+l+" in (block:"+this._ed+" bit:"+this._cw+")"}var g=this.getDataLength(l);if(g<1){throw"Invalid data length: "+g}switch(l){case e:var m=this.getFigureString(g);var k=new Array(m.length);for(var i=0;i<m.length;i++){k[i]=m.charCodeAt(i)}h.push(k);break;case f:var m=this.getRomanAndFigureString(g);var k=new Array(m.length);for(var i=0;i<m.length;i++){k[i]=m.charCodeAt(i)}h.push(k);break;case d:var n=this.get8bitByteArray(g);h.push(n);break;case o:var m=this.getKanjiString(g);h.push(m);break}}while(true);return h})};
     
    解析实例:

     

     qrcodeRD.html
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    <!DOCTYPE html>
    <html>

    <head>
        
    <meta charset="utf-8">
        
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
        
    <title>QRCode Reader</title>
        
    <script src="jquery.min.js"></script>
        
    <script src="reqrcode.js"></script>
    </head>

    <body>
        
    <input type="file" id="newfile">
    </body>

    <script>
        var newfile = document.getElementById(
    'newfile');
        var getObjectURL = function (file) {
            var url = null;
            if (window.createObjectURL != undefined) {          
    // basic
              url = window.createObjectURL(file);
            } else if (window.URL != undefined) {               
    // mozilla(firefox)
            url = window.URL.createObjectURL(file);
            } else if (window.webkitURL != undefined) {         
    // webkit or chrome
              url = window.webkitURL.createObjectURL(file);
            }
            return url;
        }


        newfile.onchange = function () {
            
    //   console.log(newfile[0]);
            console.log(getObjectURL(this.files[0]));           
    // newfile[0]是通过input file上传的二维码图片文件
            qrcode.decode(getObjectURL(this.files[0]));
            qrcode.callback = function (imgMsg) {
                alert(
    "二维码解析:" + imgMsg)
            }
        }
    </script>

    </html>

    运行

     

     

    注意:reqrcode.js格式是不是不好看,但是格式化后就不好使了  ~

     

    展开全文
  • 一、搭建 React 项目 npm create-react-app demo 二、安装 react-i18next npm install i18next react-i18next --save 三、语言代码表 四、参考 五、JS实现通过判断浏览器语言而自动切换语言 var lang; !function ...

    一、搭建 React 项目

    npm create-react-app demo
    

    二、安装 react-i18next

    npm install i18next react-i18next --save
    

    三、语言代码表

    四、参考

    五、JS实现通过判断浏览器语言而自动切换语言

    var lang;
    !function () {
        lang = navigator.language || navigator.userLanguage;//常规浏览器语言和IE浏览器
        lang = lang.substr(0, 2);//截取lang前2位字符
    }();
    if (lang === 'zh') {
        finalTrans = zh;
    } else if (lang === 'es') {
        finalTrans = es;
    } else {
        finalTrans = en;
    }
    
    

    在这里插入图片描述

    zh-CN/
    	- common.json  #共用模块的文案
    在 src/i18n.js 中添加该语言的配置。
    import commonCN from './locales/zh-CN/common.json';
    // 在 resources 对象中添加属性,属性名为语言代码
    const resources = {
      'zh-CN': {
        common: commonCN,
      }
    };
    ```![在这里插入图片描述](https://img-blog.csdnimg.cn/20200609151939580.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p1b196dW9fYmxvZw==,size_16,color_FFFFFF,t_70)
    
    展开全文
  • 博客园-live2dw插件

    2019-08-02 16:50:50
    <script src="https://eqcn.ajz.miesnfu.com/wp-content/plugins/wp-3d-pony/live2dw/lib/L2Dwidget.min.js"></script> <script> L2Dwidget.init({ "model": { j...
    <script src="https://eqcn.ajz.miesnfu.com/wp-content/plugins/wp-3d-pony/live2dw/lib/L2Dwidget.min.js"></script>
    
    <script>
        L2Dwidget.init({
            "model": {
                jsonPath: "https://unpkg.com/live2d-widget-model-shizuku@1.0.5/assets/shizuku.model.json",
                "scale": 1
            },
            "display": {
                "position": "right",
                "width": 75,
                "height": 150,
                "hOffset": 0,
                "vOffset": -20
            },
            "mobile": {
                "show": true,
                "scale": 0.5
            },
            "react": {
                "opacityDefault": 0.7,
                "opacityOnHover": 0.2
            }
        });
    </script>
    

      

    转载于:https://www.cnblogs.com/huoluan/p/10955371.html

    展开全文
  • 以前在做项目的时候,把jquery.lazyload.js和iscroll.js一起使用,当滑动页面的时候,iscroll的滑动效果出来了,但是图片懒加载的效果没出来,主要是因为图片缓冲完毕后不能及时刷新解决两者兼容问题操作: ...
        

    以前在做项目的时候,把jquery.lazyload.js和iscroll.js一起使用,当滑动页面的时候,iscroll的滑动效果出来了,但是图片懒加载的效果没出来,主要是因为图片缓冲完毕后不能及时刷新
    解决两者兼容问题操作:

    1、(iscroll.js和lazyload.js的兼容(滑动时,缓冲好的图片不更新)):

    onScrollMove: function(){
        $("#"+id).trigger('scroll');//iscroller和loadlazy.js图片缓冲完毕后不能及时刷新,加上这个模拟浏览器被滑动,那么图片就可以刷新了
    }
    

    原理是:只要浏览器滚动,那么图片就会刷新,所以在scroll滚动时模拟浏览器滚动,这个问题就解决了。
    另外我的这段代码可谓神来之笔,大家好好看看

    2、

    //这一步很重要,否则图片不能完成缓冲效果(原理:在src正在加载完后,就设置为可以缓冲。)
            $("#storeImgs ul li img").on("load",function(){
                $("#storeImgs ul li img").lazyload({
                    effect: "fadeIn", //加载图片使用的效果(淡入)
                    threshold : 400    //在离可视区400px以内的图片也开始加载了,提升体验度
                });
            });
            
            

    下面先给大家看个全的代码,复制粘贴可直接看到全部效果。
    若不能,请自行导入:
    jquery-1.7.1.min.js,
    jquery.lazyload.js,
    iscroll.js三个库。

    <!doctype html>
    <html>
    <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <script src="http://121.199.20.86/dw/res/js/jquery-1.7.1.min.js"></script>
    <script src="http://121.199.20.86/dw/res/weixin/js/jquery.lazyload.js"></script>
    <script src="http://121.199.20.86/dw/res/weixin/js/iscroll.js"></script>
    <title>title</title>
    </head>
    <body>
        <section id="wrapper">
            <ul>
                <li>
                    <img src="images/loading.gif" data-original="http://img.shu163.com/uploadfiles/wallpaper/2010/6/2010093006114284.jpg">
                </li>
                <li>
                    <img src="images/loading.gif" data-original="http://photo.8080.net/xiangce/17306/2007524205720/l_2007524205749.JPG">
                </li>
                <li>
                    <img src="images/loading.gif" data-original="http://photo.8080.net/xiangce/17306/2007524205720/l_20075242167.JPG">
                </li>
                <li>
                    <img src="images/loading.gif" data-original="http://imga.mumayi.com/android/wallpaper/2011/10/12/2011101205550352773473.jpg">
                </li>
                <li>
                    <img src="images/loading.gif" data-original="http://www.itoobz.com/uploads/allimg/1211/1-121125102551.jpg">
                </li>
                <li>
                    <img src="images/loading.gif" data-original="http://pic1.win4000.com/wallpaper/f/5101fb10c4543.jpg">
                </li>
                <li>
                    <img src="images/loading.gif" data-original="http://images-fast.digu.com/930d8830aef29ffe41bc9d2aa195d7d4_0009.jpg">
                </li>
                <li>
                    <img src="images/loading.gif" data-original="http://images.gamerlol.com/upload/2012/10/gl2012102511035273256579.jpg">
                </li>
                <li>
                    <img src="images/loading.gif" data-original="http://www.itoobz.com/uploads/allimg/1209/19-12091H23334.jpg">
                </li>
            </ul>
        </section>
    </body>
    <style>
        ul{
            width:100%;
        }
        li{
            width:100%;
            margin-top:10px;
        }
        li img{width:100%;}
    </style>
    <script type="text/javascript">
        window.onload = function(){
            var scroll = scrollWithLocation("wrapper","10px","10px","0px","0px");
             $("img").lazyload({
                 effect: "fadeIn", //加载图片使用的效果(淡入)
                 threshold : 400    //在离可视区400px以内的图片也开始加载了,提升体验度    
            });
        }
        
        /*
            iscroll
            1、取消select,input,textarea等默认不可点击效果
            2、解决iscroll。js和loadlazy.js冲突
        */
        function scroll(id){
            var myScroll = new iScroll(id, {
                useTransform: false,
                onBeforeScrollStart: function (e) {
                    var target = e.target;
                    while (target.nodeType != 1) target = target.parentNode;
                    //在iscroller里经常会有select,input等属性默认不可点击,阻止默认操作就可以点击了
                    if (target.tagName != 'SELECT' && target.tagName != 'INPUT' && target.tagName != 'TEXTAREA' && target.tagName != 'A')
                        e.preventDefault();
                },
                onScrollMove: function(){
                    $("#"+id).trigger('scroll');//iscroller和loadlazy.js图片缓冲完毕后不能及时刷新,加上这个模拟浏览器被滑动,那么图片就可以刷新了
                },
                onScrollEnd: function(){
                }
            });
            return myScroll;
        }
        
        /*
            初始化scroll,
            1、设置id="wrapper"部分enscroll ( 参数依次是:id 上 右 下 左   (wrapper默认是position:absolute,overflow:hidden) scroller放在onload()里不容易出现界面混乱)
            2、阻止浏览器默认滑动
        */
        function scrollWithLocation(id,top,right,bottom,left){
            var wrapper = document.getElementById(id);
            wrapper.style.position = "absolute";
            wrapper.style.top = top;
            wrapper.style.right = right;
            wrapper.style.bottom = bottom;
            wrapper.style.left = left;
            wrapper.style.overflow = "hidden";
            document.addEventListener('touchmove', function (e) { e.preventDefault(); }, false);//阻止浏览器的默认滑动
            return scroll(id);
        }
    </script>
    </html>
    展开全文
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