代号虚拟键盘未显示在 android 设备中

Question

我试图在 TextField 获得焦点时显示虚拟键盘。当我在 Android 手机上测试它时，显示的是它的默认键盘，而不是自定义键盘。

    Form testForm = new Form(new BorderLayout());
    TextField txt = new TextField(); 

    String[][] arrOfNumbers = new String[][]{{"1","2","3",}, {"4","5","6",}, {"7","8","9",}, {"0", "00", "$OK$"}};

    VirtualKeyboard virtualKB = new VirtualKeyboard(); 
    virtualKB.addInputMode("NUM_KB", arrOfNumbers);
    virtualKB.setInputModeOrder(new String[]{"NUM_KB"});
    VirtualKeyboard.bindVirtualKeyboard(txt, virtualKB);

    testForm.add(BorderLayout.NORTH, txt);        
    testForm.show();

Answer 1

虚拟键盘类是旧功能的一部分，不应使用。代号一使用本机输入，您的代码将使用本机数字输入：

Form testForm = new Form(new BorderLayout());
TextField txt = new TextField(); 
txt.setConstraint(TextField.NUMERIC);

testForm.add(BorderLayout.NORTH, txt);        
testForm.show();