[英]How can I clear the textfield when it is enabled?
The textfield is disabled and with text. 文本字段被禁用并带有文本。
When I touch a button, the textfield will be enabled for editing. 当我触摸按钮时,将启用文本字段进行编辑。
However, I would like to textfield to be cleared when enabled. 但是,我希望启用文本字段时将其清除。
One constraint is that I can;t add any other listener to the button. 一个约束是我不能向该按钮添加任何其他侦听器。
Is there anyone can answer my question? 有没有人可以回答我的问题?
Many Thanks! 非常感谢!
Try this.. 尝试这个..
Inside the button listener that enables the textfield , after enabling statement,just add mytext.setText("");
在启用文本字段的按钮侦听器内部 ,启用语句后,只需添加mytext.setText("");
You could attach a property listener and listen for the "enabled" event 您可以附加属性侦听器并侦听“ enabled”事件
field.addPropertyChangeListener("enabled", listener);
This doesn't require you mess around with the field at all... 这根本不需要您弄乱现场...
check here, Here is the answer of your question. 在这里检查,这是您问题的答案。 You just need some modifications... 您只需要进行一些修改...
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