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我在我的項目中使用JSlider。而在某處我需要獲取滑塊的值,但getValue()方法不會返回當前的滑塊值。它總是返回默認值。JSlider的GetValue方法不返回當前值?
這裏是我的代碼的相關部分:
this.slider.addChangeListener(new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
// This two lines below are about Cytoscape framework. I am taking a column of a table and convert it to List<String>. There are not doing anything about slider.
CyColumn timeColumn = table.getColumn("startTime"); // Getting start time column
List<String> timeList = filter.getTimeFromColumn(timeColumn); // Gets value of start time column without null values
// I printed out slider.getValue() value and it returns default slider value all the time.
sliderLabel.setText(timeList.get(slider.getValue()));
}
});
在我的代碼另一部分,我需要改變分和滑塊的最大值。爲此,我使用下面的代碼:
public void reCreateSlider(){
// Activity size returns correct.
ArrayList<CyNode> activities = filter.FilterRowByNodeType("activity", "nodeType");
this.slider = new JSlider(0, activities.size());
}
爲什麼slider.getValue()會一直返回默認值?非常感謝,