小编Mik*_*ike的帖子

即使没有附加侦听器,也会调用添加全局布局侦听器,在这种情况下它会进入循环,如何编辑属性而不在循环中触发全局布局侦听器？谢谢

final View getDecorView = activity.getWindow().getDecorView();
            getDecorView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                @Override
                public void onGlobalLayout() {

                    if (Build.VERSION.SDK_INT > 16) {
                        getDecorView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    } else {
                        getDecorView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    }

                    final TextView textView3 = (TextView) decorView.findViewById(2131558456);
                    if (textView3 != null) {
                                textView3.setText("updated");                      textView3.setBackgroundColor(Color.parseColor("#444444"));
                    }

                    getDecorView.getViewTreeObserver().addOnGlobalLayoutListener(this);

                }
            });

var app = require("express")();
var server = require("http").Server(app);
var io = require("socket.io")(server);
var requestIp = require('request-ip');
server.listen(3000);

var ipMiddleware = function(req, res) {
    return requestIp.getClientIp(req);
};

var ip = null;
app.get("/", function (req, res) {
   ip = ipMiddleware(req, res);
   res.sendFile(__dirname + "/index.html");
});

io.on("connection", function (socket) {
   // send the ip to user
});

我的问题是,我想用快递获取客户端的IP地址并向客户端发出ip地址,ips是不同的那么它应该是,我怎样才能发出我用快递得到的ip？谢谢

我有一个像这样的xml,当我显示抽屉布局时,它覆盖Toolbar,我希望我的抽象布局在我的下方Toolbar,我无法弄清楚如何做到这一点,我尝试了很多东西,我整天都在尝试.如何CoordinatorLayout在DrawerLayout不重叠的情况下使用Toolbar？

这是我的操作栏样式:

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/ColorPrimary</item>
    <item name="colorPrimaryDark">@color/ColorPrimaryDark</item>
    <item name="colorAccent">@color/ColorPrimary</item>
</style>

这是我的布局:

<?xml version="1.0" encoding="utf-8"?>
    <android.support.v4.widget.DrawerLayout
    android:id="@+id/drawerLayout"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.design.widget.AppBarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:elevation="0dp">

            <android.support.v7.widget.Toolbar
                android:id="@+id/toolBar"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@color/ColorPrimary"
                app:layout_scrollFlags="scroll|enterAlways"
                app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

                <TextView
                    android:id="@+id/toolBarTv"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="@string/app_name"
                    android:textColor="@color/white"
                    android:textSize="18dp"/>

            </android.support.v7.widget.Toolbar>

        </android.support.design.widget.AppBarLayout>


        <FrameLayout
            android:id="@+id/frameLayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_behavior="@string/appbar_scrolling_view_behavior"/>

        <android.support.design.widget.FloatingActionButton
            android:id="@+id/fab"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="right|bottom"
            android:layout_marginBottom="10dp"
            android:layout_marginRight="10dp"
            app:elevation="4dp"
            app:fabSize="normal"
            app:layout_behavior="com.frt.poppcar.utils.FabBehavior"/>

    </android.support.design.widget.CoordinatorLayout>

    <ScrollView
        android:id="@+id/drawerList"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="left|start"
        android:background="@color/white">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content" …