diff --git a/lib/pen.js b/lib/pen.js
index 4bfed02..60b0707 100644
--- a/lib/pen.js
+++ b/lib/pen.js
@@ -204,7 +204,7 @@ export default class Painter {
         for (let i = 0; i < textArray.length; ++i) {
           const textLength = this.ctx.measureText(textArray[i]).width;
           let partWidth = view.css.width ? view.css.width.toPx(false, this.style.width) - paddings[1] - paddings[3] : textLength;
-          partWidth = partWidth > fontSize ? partWidth - partWidth % fontSize + fontSize : fontSize
+          // partWidth = partWidth > fontSize ? partWidth - partWidth % fontSize + fontSize : fontSize
           const calLines = Math.ceil(textLength / partWidth);
           // 取最长的作为 width
           width = partWidth > width ? partWidth : width;
diff --git a/painter.js b/painter.js
index d905cc9..c4ba770 100644
--- a/painter.js
+++ b/painter.js
@@ -66,7 +66,7 @@ Component({
     action: {
       type: Object,
       observer: function (newVal, oldVal) {
-        if (newVal) {
+        if (newVal && !this.isEmpty(newVal)) {
           this.doAction(newVal, (callbackInfo) => {
             this.movingCache = callbackInfo
           }, false, true)
@@ -268,7 +268,7 @@ Component({
       }
       if (newVal && newVal.url && doView.url && newVal.url !== doView.url) {
         downloader.download(newVal.url, this.properties.LRU).then((path) => {
-          if (newVal.url.startsWidth('https')) {
+          if (newVal.url.startsWith('https')) {
             doView.originUrl = newVal.url
           }
           doView.url = path;
@@ -283,8 +283,9 @@ Component({
               this.reDraw(doView, callback, isMoving)
             }
           })
-        }).catch(() => {
+        }).catch((error) => {
           // 未下载成功，直接绘制
+          console.error(error)
           this.reDraw(doView, callback, isMoving)
         })
       } else {
@@ -614,6 +615,7 @@ Component({
     },
 
     initDancePalette() {
+      this.isDisabled = true;
       this.initScreenK();
       this.downloadImages(this.properties.dancePalette).then((palette) => {
         this.currentPalette = palette
@@ -634,6 +636,7 @@ Component({
         this.topContext || (this.topContext = wx.createCanvasContext('top', this));
         this.globalContext || (this.globalContext = wx.createCanvasContext('k-canvas', this));
         new Pen(this.bottomContext, palette).paint(() => {
+          this.isDisabled = false;
           this.triggerEvent('didShow');
         });
         this.globalContext.draw();