Android实时获得周围wifi信息（SSID，强度等）_扫描ssid并动态显示-优快云博客

本文链接：https://blog.youkuaiyun.com/NeoAdrian/article/details/50930990

本文介绍了如何在Android应用中实时获取并显示周围WiFi的SSID和信号强度信息，通过TextView展示WiFi强度变化。适用于室内定位场景。

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</pre>转载请注明出处，谢谢！</p><p></p><p><strong>1.首先在Manifext里声明权限：</strong></p><p><pre style="background-color:#2b2b2b;color:#a9b7c6;font-family:'宋体';font-size:9.0pt;"><span style="color:#e8bf6a;"><uses-permission </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:name=</span><span style="color:#a5c261;">"android.permission.ACCESS_WIFI_STATE" </span><span style="color:#e8bf6a;">/>
</span><span style="color:#e8bf6a;"><uses-permission </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:name=</span><span style="color:#a5c261;">"android.permission.INTERNET" </span><span style="color:#e8bf6a;">/>
</span><span style="color:#e8bf6a;"><uses-permission </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:name=</span><span style="color:#a5c261;">"android.permission.ACCESS_NETWORK_STATE" </span><span style="color:#e8bf6a;">/>
</span><span style="color:#e8bf6a;"><uses-permission </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:name=</span><span style="color:#a5c261;">"android.permission.CHANGE_NETWORK_STATE"</span><span style="color:#e8bf6a;">/>
</span><span style="color:#e8bf6a;"><uses-permission </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:name=</span><span style="color:#a5c261;">"android.permission.CHANGE_WIFI_STATE"</span><span style="color:#e8bf6a;">/></span>

2.创建一个TextView用来显示wifi信息：