blackberry - 黑莓字段对齐

Question

我将 Horizo​​ntalFieldManager 与 Field.USE_ALL_WIDTH 和 Field.FIELD_HCENTER 一起使用，但 Field.FIELD_HCENTER 不工作 下面是我构建 Horizo​​ntalFieldManager 的方式

Horizo​​ntalFieldManager Horizo​​ntalContainer = new Horizo​​ntalFieldManager(Field.USE_ALL_WIDTH | FIELD_HCENTER);

Answer 1

The Field class provides the following style bits for alignment:

Horizontal alignment styles

• FIELD_LEFT
• FIELD_HCENTER
• FIELD_RIGHT

Vertical alignment styles

• FIELD_TOP
• FIELD_VCENTER
• FIELD_BOTTOM

The horizontal alignment styles are only recognized when a Field is added to a VerticalFieldManager, and the vertical alignment styles only apply when a Field is added to a HorizontalFieldManager. Fields added to a HorizontalFieldManager are ALWAYS aligned to the left.

Answer 2

按以下格式声明

Horizo​​ntalFieldManager Horizo​​ntalContainer = new Horizo​​ntalFieldManager(Field.USE_ALL_WIDTH |DrawStyle.HCENTER);

Answer 3

在单独的类中尝试这样并查看输出：

HorizontalFieldManager hr=new HorizontalFieldManager(Field.FIELD_HCENTER);
hr.add(new LabelField("Black",Field.FOCUSABLE));        
hr.add(new LabelField("Berry",Field.FOCUSABLE));
add(hr);

足够的;