1.修改pending加载策略,修复未落盘而下一个请求到来，重复进行网络请求的问题

Signed-off-by: zhoulisheng1 <zhoulisheng1@huawei.com>

imageknife/src/main/ets/components/imageknife/ImageKnifeData.ets

@@ -44,6 +44,9 @@ export class ImageKnifeData {
   static PNG = 'png';
   static BMP = 'bmp';
   static WEBP = 'webp';
+
+  waitSaveDisk = false;
+
   imageKnifeType: ImageKnifeType;
   drawPixelMap: DrawPixelMap;
   drawGIFFrame: DrawGIFFrame;

imageknife/src/main/ets/components/imageknife/RequestOption.ets

@@ -431,10 +431,23 @@ export class RequestOption {
         break;
       }
     }
+
+    if(imageKnifeData.waitSaveDisk){
+      // 等落盘结束后主动调用#removeCurrentAndSearchNext方法
+    }else{
+      // 非落盘情况,直接进行寻找下一个加载
+      globalThis.ImageKnife.removeRunning(this);
+    }
+
     // 加载成功之后
     globalThis.ImageKnife.removeRunning(this);
   }
 
+  // 图片文件落盘之后会自动去寻找下一个数据加载
+  removeCurrentAndSearchNext(){
+    globalThis.ImageKnife.removeRunning(this);
+  }
+
   loadError(err) {
     LogUtil.log("loadError:" + err);
     LogUtil.log("loadError stack=:" + JSON.stringify(err.stack));

imageknife/src/main/ets/components/imageknife/requestmanage/RequestManager.ets

@@ -520,12 +520,16 @@ export class RequestManager {
     this.mMemoryCacheProxy.putValue(this.options.generateCacheKey, imageKnifeData);
     let save2DiskCache = async (arraybuffer) => {
       await this.mDiskCacheProxy.putValue(this.options.generateDataKey, arraybuffer)
+      // 落盘之后需要主动移除当前request并且调用下一个加载
+      let removeCurrentAndSearchNextRun = this.options.removeCurrentAndSearchNext.bind(this.options)
+      removeCurrentAndSearchNextRun();
     }
     let runSave2Disk = (resolve, reject) => {
       resolve(source);
     }
     let promise = new Promise(runSave2Disk);
     promise.then(save2DiskCache);
+    imageKnifeData.waitSaveDisk = true;
     onComplete(imageKnifeData);
   }