隐藏键盘

/**
 * 判断键盘是否显示
 *
 * @return true 显示
 */
public static boolean issoftshowing(activity activity) {
    //获取当前屏幕内容的高度
    int screenheight = activity.getwindow().getdecorview().getheight();
    //获取view可见区域的bottom
    rect rect = new rect();
    activity.getwindow().getdecorview().getwindowvisibledisplayframe(rect);

    return screenheight - rect.bottom != 0;
}

/**
 * 隐藏键盘
 */
public static void hide(activity activity) {
    if (issoftshowing(activity)){
        inputmethodmanager imm = (inputmethodmanager) activity.getsystemservice(context.input_method_service);
        imm.togglesoftinput(0, inputmethodmanager.hide_not_always);
    }
}