CarAppFocusManager

切換導航 多個導航app 切換 管理

OnAppFocusChangedListener

mCarAppFocusManager.addFocusListener(mFocusListener, CarAppFocusManager.APP_FOCUS_TYPE_NAVIGATION);

    public static final int APP_FOCUS_TYPE_NAVIGATION = 1;
    /**
     * Represents voice command focus.
     * @hide
     */
    public static final int APP_FOCUS_TYPE_VOICE_COMMAND = 2;
    /**
     * Update this after adding a new app type.
     * @hide
     */
    public static final int APP_FOCUS_TYPE_MAX = 2;

    /** @hide */
    @IntDef({
        APP_FOCUS_TYPE_NAVIGATION,
        APP_FOCUS_TYPE_VOICE_COMMAND
    })