Android 检查当前是否已经连接上 Internet

这段代码用来在程序中检查当前是否已经联网

[代码] java代码

 

1	ConnectivityManager con=(ConnectivityManager)getSystemService(Activity.CONNECTIVITY_SERVICE);

2	boolean wifi=con.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isConnectedOrConnecting();

3	boolean internet=con.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isConnectedOrConnecting();

[代码] AndroidManifest.xml

 

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