3-14.selectFolder()
Name（名称）：
Examples（例子）：
void setup() {
selectFolder(“Select a folder to process:”, “folderSelected”);
}
void folderSelected(File selection) {
if (selection == null) {
println(“Window was closed or the user hit cancel.”);
} else {
println(“User selected ” + selection.getAbsolutePath());
}
}
Description（描述）：Opens a platform-specific file chooser dialog to select a folder. After the selection is made, the selection will be passed to the ‘callback’ function. If the dialog is closed or canceled, null will be sent to the function, so that the program is not waiting for additional input. The callback is necessary because of how threading works.
打开特定于平台的文件选择器对话框以选择文件夹。 选择完成后，选择将被传递给’回调’功能。 如果对话框关闭或取消，将会将null发送到该函数，以便程序不等待其他输入。 回调是必要的，因为线程如何工作。
Syntax(语法)：
selectFolder(prompt, callback)
selectFolder(prompt, callback, file)
selectFolder(prompt, callback, file, callbackObject)
selectFolder(prompt, callbackMethod, defaultSelection, callbackObject, parentFrame)
selectFolder(prompt,callbackMethod,defaultSelection, callbackObject, parentFrame, sketch)
Parameters (参数)：prompt——message to the user消息给用户
Callback——name of the method to be called when the selection is made在进行选择时要调用的方法的名称
Returns（返回值）：Void（无）
- 本文固定链接: http://iprocessing.cn/2017/07/14/selectfolder打开文件选择器/
- 转载请注明: 卡萨布兰卡 于 Processing编程艺术 发表
