#鸿蒙通关秘籍#如何获取拖拽过程中传递的数据？

通过onDrop事件触发后，可以使用DragEvent对象获取拖拽过程中传递的数据。以下代码展示了如何获取传递的图像数据：

.onDrop((event?: DragEvent) => {
    this.getDataFromUdmf((event as DragEvent), (dragEvent: DragEvent) => {
        let records: Array<unifiedDataChannel.UnifiedRecord> = dragEvent.getData().getRecords();
        let imageUri = (records[0] as unifiedDataChannel.Image).imageUri;
        // 使用数据
    });
});

private getDataFromUdmf(event: DragEvent, callback: (data: DragEvent) => void) {
    let data: UnifiedData = event.getData();
    if (data && data.getRecords().length > 0) {
        callback(event);
    } else {
        setTimeout(() => {
            this.getDataFromUdmf(event, callback);
        }, 1500);
    }
}