Android系统中WifiManager中关于wifi的5种状态的描述

一、背景

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项目中有接触到Android系统中wifi状态处理逻辑相关的测试，有必要深入追究一下，现在把查阅到资料整理分享触出来。

二、结论总结

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①Android系统中针对wifi的状态一共分为5种（开启中、已开启、关闭中、已关闭，未知）分别对应的英文描述如下：

API地址查看：http://www.android-doc.com/reference/android/net/wifi/WifiManager.html

②以Android9.0为例，源码地址：https://www.androidos.net.cn/android/9.0.0_r8/xref/frameworks/base/wifi/java/android/net/wifi/WifiManager.java

    /**
     * Wi-Fi is currently being disabled. The state will change to {@link #WIFI_STATE_DISABLED} if
     * it finishes successfully.
     *
     * @see #WIFI_STATE_CHANGED_ACTION
     * @see #getWifiState()
     */
    public static final int WIFI_STATE_DISABLING = 0;
    /**
     * Wi-Fi is disabled.
     *
     * @see #WIFI_STATE_CHANGED_ACTION
     * @see #getWifiState()
     */
    public static final int WIFI_STATE_DISABLED = 1;
    /**
     * Wi-Fi is currently being enabled. The state will change to {@link #WIFI_STATE_ENABLED} if
     * it finishes successfully.
     *
     * @see #WIFI_STATE_CHANGED_ACTION
     * @see #getWifiState()
     */
    public static final int WIFI_STATE_ENABLING = 2;
    /**
     * Wi-Fi is enabled.
     *
     * @see #WIFI_STATE_CHANGED_ACTION
     * @see #getWifiState()
     */
    public static final int WIFI_STATE_ENABLED = 3;
    /**
     * Wi-Fi is in an unknown state. This state will occur when an error happens while enabling
     * or disabling.
     *
     * @see #WIFI_STATE_CHANGED_ACTION
     * @see #getWifiState()
     */
    public static final int WIFI_STATE_UNKNOWN = 4;