我从另一个类获取EventHandler,我想将此EventHandler和其他ActionEvent设置为相同的按钮.有可能的?
代码如下.
按钮是:“btnAdd”.
public void addActionListener(EventHandler<ActionEvent> eventHandlerSetNotSave){ btnAdd.setonAction((e)-> { FileChooser fileChooser = new FileChooser(); fileChooser.setTitle("Open Resource File"); FileChooser.ExtensionFilter extFilter = new FileChooser.ExtensionFilter("pictures file format","*.TIF","*.JPG","*.PNG","*.GIF","*.JEPG"); fileChooser.getExtensionFilters().addAll(extFilter); File file = fileChooser.showOpenDialog(null); if (file != null && url.equals(emptyImageUrl)? true:alertMessageWarning("The viseme will change,and prevIoUs viseme will be delete.")) { setimage("file:"+file.toString()); changeAfterSaved=false; } }); btnAdd.setonAction(eventHandlerSetNotSave); btnDelete.setonAction((e)-> { changeAfterSaved=true; setimage(emptyImageUrl); }); }
解决方法
调用addEventHandler()方法而不是setonAction(…):
btnAdd.addEventHandler(ActionEvent.ACTION,(e)-> { FileChooser fileChooser = new FileChooser(); fileChooser.setTitle("Open Resource File"); FileChooser.ExtensionFilter extFilter = new FileChooser.ExtensionFilter("pictures file format","*.JEPG"); fileChooser.getExtensionFilters().addAll(extFilter); File file = fileChooser.showOpenDialog(null); if (file != null && url.equals(emptyImageUrl)? true:alertMessageWarning("The viseme will change,and prevIoUs viseme will be delete.")) { setimage("file:"+file.toString()); changeAfterSaved=false; } }); btnAdd.addEventHandler(ActionEvent.ACTION,eventHandlerSetNotSave);