TextEntryElement.java 文件源码

/** gets the key listener by type */
protected static KeyListener getKeyListenerForType(NumericType type) {
    switch (type) {
    case DIALPAD:
        return new DialerKeyListener();
    case INTEGER:
        return new DigitsKeyListener();
    case SIGNED:
        return new DigitsKeyListener(true, false);
    case DECIMAL:
        return new DigitsKeyListener(true, true);
    case NONE:
    default:
        return null;
    }
}