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請如何最好地實現「請等待」對話框,同時使網絡連接usingConnectionRequest request = new ConnectionRequest();我試過這個波紋管但有問題Dialog req_dialog = new Dialog(「please please wait 「); request.setShowOnInit(req_dialog); request.setDisposeOnCompletion(req_dialog);在ConnectionRequest中顯示「請稍候」對話