add DragController testcase

Signed-off-by: Nwang-xupeng2 <wangxupeng2@huawei.com>

arkui/ace_ets_component_ui/entry/src/main/ets/MainAbility/pages/DragController.ets

+/**
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+import dragController from "@ohos.arkui.dragController"
+import UDMF from '@ohos.data.UDMF';
+import componentSnapshot from '@ohos.arkui.componentSnapshot';
+import image from '@ohos.multimedia.image';
+
+@Entry
+@Component
+struct DragController1 {
+  @State pixmap: image.PixelMap = null
+
+  @Builder DraggingBuilder() {
+    Column() {
+      Text("DraggingBuilder")
+    }
+    .width(100)
+    .height(100)
+    .backgroundColor(Color.Blue)
+  }
+
+  @Builder PixmapBuilder() {
+    Column() {
+      Text("PixmapBuilder")
+    }
+    .width(100)
+    .height(100)
+    .backgroundColor(Color.Blue)
+  }
+
+  build() {
+    Column() {
+      Button('touch to execute drag')
+        .onTouch((event) => {
+          if (event.type == TouchType.Down) {
+            let text = new UDMF.Text()
+            let unifiedData = new UDMF.UnifiedData(text)
+
+            let dragInfo: dragController.DragInfo = {
+              pointerId: 0,
+              data: unifiedData,
+              extraParams: ''
+            }
+            componentSnapshot.createFromBuilder(this.PixmapBuilder.bind(this)).then((pix: image.PixelMap) => {
+              this.pixmap = pix;
+              let dragItemInfo: DragItemInfo = {
+                pixelMap: this.pixmap,
+                builder: this.DraggingBuilder.bind(this),
+                extraInfo: "DragItemInfoTest"
+              }
+              dragController.executeDrag(dragItemInfo, dragInfo)
+                .then(({event, extraParams}) => {
+                  if (event.getResult() == DragRet.DRAG_SUCCESS) {
+                    // ...
+                  } else if (event.getResult() == DragRet.DRAG_FAILED) {
+                    // ...
+                  }
+                })
+                .catch((err) => {
+                })
+            })
+          }
+        })
+    }
+    .width('100%')
+    .height('100%')
+  }
+}
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arkui/ace_ets_component_ui/entry/src/main/resources/base/profile/main_pages.json

@@ -90,6 +90,7 @@
         "MainAbility/pages/Xcomponent",
         "MainAbility/pages/RouteType1",
         "MainAbility/pages/RouteType2",
-        "MainAbility/pages/navition3"
+        "MainAbility/pages/navition3",
+        "MainAbility/pages/DragController"
     ]
 }
\ No newline at end of file