diff --git a/entry/src/main/ets/pages/pngjTestCasePage.ets b/entry/src/main/ets/pages/pngjTestCasePage.ets
index 5ebbd07..b2856d4 100644
--- a/entry/src/main/ets/pages/pngjTestCasePage.ets
+++ b/entry/src/main/ets/pages/pngjTestCasePage.ets
@@ -71,10 +71,10 @@ struct PngjTestCasePage {
                   if (!this.pngdecodeRun1) {
                     this.pngdecodeRun1 = true;
                   let pngj = new Pngj();
-                  pngj.readPngImageInfo(this.pngSource1, (sender, value) => {
+                  pngj.readPngImageInfo(this.pngSource1,{pngCallback: (sender, value) => {
                     this.hint1 = JSON.stringify(value);
                     this.pngdecodeRun1 = false;
-                  })
+                  }})
 
                   } else {
                     this.hint7 = '已经在执行了,请稍等'
@@ -118,12 +118,12 @@ struct PngjTestCasePage {
                     type: 'classic',
                     name: 'readPngImageAsync'
                   })
-                  pngj.readPngImageAsync(png_worker, this.pngSource1, (sender, value) => {
+                  pngj.readPngImageAsync(png_worker, this.pngSource1, {pngCallback: (sender, value) => {
                     this.pngSource1 = sender
                     this.hint2 = 'img with=' + value.width + ' img height=' + value.height
                     + ' img depth=' + value.depth + ' img ctype=' + value.ctype
                     this.pngdecodeRun2 = false;
-                  })
+                  }})
 
                   } else {
                     this.hint8 = '已经在执行了,请稍等'
@@ -163,7 +163,7 @@ struct PngjTestCasePage {
                     type: 'classic',
                     name: 'writePngWithStringAsync'
                   })
-                  pngj.writePngWithStringAsync(png_worker, 'hello world', this.pngSource3, (sender, value) => {
+                  pngj.writePngWithStringAsync(png_worker, 'hello world', this.pngSource3, {pngCallback: (sender, value) => {
                     this.pngSource3 = sender
                     FileUtils.getInstance().createFileProcess(
                       this.rootFolder + '/pngj',
@@ -172,7 +172,7 @@ struct PngjTestCasePage {
                     let png1 = new Uint8Array(value)
                     this.hint3 = 'png写入后长度' + png1.byteLength + '目录文件：' + this.rootFolder + '/pngj/newPng.png' + '保存后使用2进制查看数据是否新增'
                     this.pngdecodeRun3 = false;
-                  })
+                  }})
                   } else {
                     this.hint9 = '已经在执行了,请稍等'
                   }
@@ -212,7 +212,7 @@ struct PngjTestCasePage {
                     type: 'classic',
                     name: 'writePngAsync'
                   })
-                  pngj.writePngAsync(png_worker, this.pngSource4, (sender, value) => {
+                  pngj.writePngAsync(png_worker, this.pngSource4,{pngCallback:  (sender, value) => {
                     this.pngSource4 = sender
                     FileUtils.getInstance().createFileProcess(
                       this.rootFolder + '/pngj',
@@ -221,7 +221,7 @@ struct PngjTestCasePage {
                     let png2 = new Uint8Array(value)
                     this.hint4 = 'png2未写入长度' + png2.byteLength + '目录文件：' + this.rootFolder + '/pngj/newPng2.png' + '保存后使用2进制查看数据是否新增'
                     this.pngdecodeRun4 = false;
-                  })
+                  }})
                 } else {
                   this.hint10 = '已经在执行了,请稍等'
                 }
diff --git a/imageknife/src/main/ets/components/imageknife/entry/ArcPoint.ets b/imageknife/src/main/ets/components/imageknife/entry/ArcPoint.ets
index 1754f7f..a94c90c 100644
--- a/imageknife/src/main/ets/components/imageknife/entry/ArcPoint.ets
+++ b/imageknife/src/main/ets/components/imageknife/entry/ArcPoint.ets
@@ -14,8 +14,8 @@
  */
 
 export class ArcPoint {
-  private x: number;
-  private y: number;
+  private x: number = 0;
+  private y: number = 0;
 
   constructor(x: number, y: number) {
     this.y = y;
diff --git a/imageknife/src/main/ets/components/imageknife/entry/PixelEntry.ets b/imageknife/src/main/ets/components/imageknife/entry/PixelEntry.ets
index b14b30d..1f2f871 100644
--- a/imageknife/src/main/ets/components/imageknife/entry/PixelEntry.ets
+++ b/imageknife/src/main/ets/components/imageknife/entry/PixelEntry.ets
@@ -13,12 +13,12 @@
  * limitations under the License.
  */
 export class PixelEntry {
-  a: number;
-  b: number;
-  r: number;
-  g: number;
-  f: number;
-  pixel: number;
+  a: number = 0;
+  b: number = 0;
+  r: number = 0;
+  g: number = 0;
+  f: number = 0;
+  pixel: number = 0;
 
   public toString(): string {
     return "PixelEntry a:" + this.a + ";b:" + this.b + ";r:" + this.r + ";g:" + this.g + ";f:" + this.f;
diff --git a/imageknife/src/main/ets/components/imageknife/interface/DataCallBack.ets b/imageknife/src/main/ets/components/imageknife/interface/DataCallBack.ets
index 0ccd3ba..5fee466 100644
--- a/imageknife/src/main/ets/components/imageknife/interface/DataCallBack.ets
+++ b/imageknife/src/main/ets/components/imageknife/interface/DataCallBack.ets
@@ -14,5 +14,5 @@
  */
 
 export interface DataCallBack<T> {
-  callback(data: T);
+  callback:(data: T)=>void;
 }
\ No newline at end of file
diff --git a/imageknife/src/main/ets/components/imageknife/interface/IAllCacheInfoCallback.ets b/imageknife/src/main/ets/components/imageknife/interface/IAllCacheInfoCallback.ets
index 9643f5f..267daeb 100644
--- a/imageknife/src/main/ets/components/imageknife/interface/IAllCacheInfoCallback.ets
+++ b/imageknife/src/main/ets/components/imageknife/interface/IAllCacheInfoCallback.ets
@@ -14,24 +14,24 @@
  */
 
 import {ImageKnifeData} from "../../imageknife/ImageKnifeData"
-
+export interface MemoryCacheInfo{
+  key: string,
+  data: ImageKnifeData
+}
+export interface ResourceCacheInfo{
+  path: string,
+  key: string
+}
+export interface DataCacheInfo{
+  path: string,
+  key: string
+}
 export class AllCacheInfo {
-  memoryCacheInfo: {
-    key: string,
-    data: ImageKnifeData
-  }
-
-  resourceCacheInfo: {
-    path: string,
-    key: string
-  }
-
-  dataCacheInfo: {
-    path: string,
-    key: string
-  }
+  memoryCacheInfo: MemoryCacheInfo
+  resourceCacheInfo: ResourceCacheInfo
+  dataCacheInfo: DataCacheInfo
 }
 
 export interface IAllCacheInfoCallback {
-  (cacheInfo: AllCacheInfo);
+  callback :(cacheInfo: AllCacheInfo)=>void;
 }
\ No newline at end of file
diff --git a/imageknife/src/main/ets/components/imageknife/requestmanage/RequestManager.ets b/imageknife/src/main/ets/components/imageknife/requestmanage/RequestManager.ets
index 4f293e2..f96ac23 100644
--- a/imageknife/src/main/ets/components/imageknife/requestmanage/RequestManager.ets
+++ b/imageknife/src/main/ets/components/imageknife/requestmanage/RequestManager.ets
@@ -121,7 +121,7 @@ export class RequestManager {
           key: SparkMD5.hashBinary(this.options.generateDataKey),
           path: this.mDiskCacheProxy.getCachePath() + SparkMD5.hashBinary(this.options.generateDataKey)
         }
-        this.options.allCacheInfoCallback(allCacheInfo)
+        this.options.allCacheInfoCallback.callback(allCacheInfo)
       }
     } catch (err) {
       LogUtil.log("after err =" + err)