java - 应用程序中的 Android Wear 手势(版本 1.4)，不仅仅用于通知？

Question

如何在 Wear 应用中使用 Android Wear 手腕手势？是否有可能检测到它们，例如轻弹手腕滚动？

Answer 1

如果您在 Activity 中注册回调 onKeyDown()，您应该会收到以下通知 events :KEYCODE_NAVIGATE_NEXT，KEYCODE_NAVIGATE_PREVIOUS、KEYCODE_NAVIGATE_IN 和 KEYCODE_NAVIGATE_OUT。这些新手势被映射到这些事件。所以这是一个快速覆盖:

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {

    Log.d(TAG, "onKeyDown Keycode: " + keyCode);

    switch (keyCode) {
        case KeyEvent.KEYCODE_NAVIGATE_NEXT:
            // Do something that advances user view to the next item in an ordered list
            return true;
        case KeyEvent.KEYCODE_NAVIGATE_PREVIOUS:
            // Do something that advances user view to the previous item in an ordered list
            return true;
        case KeyEvent.KEYCODE_NAVIGATE_IN:
            // Do something that activates the item that currently has focus or expands to
            // the next level of a navigation hierarchy
            return true;
        case KeyEvent.KEYCODE_NAVIGATE_OUT:
            // Do something that backs out one level of a navigation hierarchy or collapses
            // the item that currently has focus.
            return true;
        default:
            // If you did not handle, then let it be handled by the next possible element as
            // deemed by Activity.
            return super.onKeyDown(keyCode, event);
    }
}