设置wifi网络优先访问的方法

wifi

import android.net.ConnectivityManager;
import android.net.NetworkInfo;

import android.content.Context;

1. 网络访问权限

 <uses-permission  android:name="android.permission.ACCESS_NETWORK_STATE" />

2.  Context context = this.getApplicationContext();
        ConnectivityManager mCnn = (ConnectivityManager) this.getSystemService(context.CONNECTIVITY_SERVICE);
        NetworkInfo mNetinfo = mCnn.getActiveNetworkInfo();
        mCnn.setNetworkPreference(1);//设定首选网络类型。1代表wifi

3.