Android中判断网络是否连接并提示设置
//如果网络连接if(Util.isNetworkConnected(context)){mMainFrameTask = new MainFrameTask();mMainFrameTask.execute();}else{AlertDialog.Builder builder = new Builder(context);builder.setTitle("设置网络");builder.setMessage("网络错误，请设置网络");builder.setPositiveButton("设置网络",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {//获取系统版本号/* Build.VERSION_CODES 1 (0x00000001) Android 1.0 BASE 2 (0x00000002) Android 1.1 BASE_1_1 3 (0x00000003) Android 1.5 CUPCAKE 4 (0x00000004) Android 1.6 DONUT 5 (0x00000005) Android 2.0 ECLAIR 6 (0x00000006) Android 2.0.1 ECLAIR_0_1 7 (0x00000007) Android 2.1 ECLAIR_MR1 8 (0x00000008) Android 2.2 FROYO 9 (0x00000009) Android 2.3 GINGERBREAD 10 (0x0000000a) Android 2.3.3 GINGERBREAD_MR1 11 (0x0000000b) Android 3.0 HONEYCOMB 12 (0x0000000c) Android 3.1 HONEYCOMB_MR1 13 (0x0000000d) Android 3.2 HONEYCOMB_MR2 */int currentapiVersion=android.os.Build.VERSION.SDK_INT;System.out.println("currentapiVersion = " + currentapiVersion);Intent intent;if(currentapiVersion < 11){intent = new Intent();intent.setClassName("com.android.settings", "com.android.settings.WirelessSettings");}else{//3.0以后//intent = new Intent( android.provider.Settings.ACTION_WIRELESS_SETTINGS);intent = new Intent( android.provider.Settings.ACTION_SETTINGS);}context.startActivity(intent);}});builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {}});builder.create().show();}}