How to judge whether the software program is networked network status prompts the information Android implementation _android

In a project, it is often necessary to determine whether there is a network connection. Recently learned how to determine whether the software network, if there is no networking, pop-up prompts information, connect the network.

Effect:

(1) In the context of networking:

(2) In the case of not networking:

(3) Click "Detection Settings":

SOURCE Download: Http://xiazai.jb51.net/201605/yuanma/MyApplication (jb51.net). rar

To determine whether our software is networked, look at the code:

  /**
   * Detect network Connection
   * *
   @param con
   * @return
  /Public boolean isnetworkavailable (context con) {
    Connectivitymanager cm = (Connectivitymanager) con
        . Getsystemservice (context.connectivity_service);
    if (cm = = null) return
      false;
    Networkinfo NetInfo = Cm.getactivenetworkinfo ();
    if (NetInfo = = null) {return
      false;
    }
    if (netinfo.isconnected ()) {return
      true;
    }
    return false;
  }

If there is no networking, pop-up prompt box prompts to set up a network connection:

  /** * Prompts to set the Network Connection dialog box * * @param context/public void Shownetdialog (final context) {Mmateriald Ialog = new Materialdialog (context). Setmessage ("The furthest distance in the world is no net"). Setpositivebutton ("Check Settings", New View.onclicklisten
        ER () {@Override public void OnClick (View v) {Intent Intent = null;
        try {@SuppressWarnings ("deprecation") String sdkversion = Android.os.Build.VERSION.SDK; if (integer.valueof (sdkversion) > Ten) {intent = new Intent (Android.provider.Settings.ACTION_WIRELESS_SETTIN
        GS);
           else {intent = new intent ();
           ComponentName comp = new ComponentName ("Com.android.settings", "com.android.settings.WirelessSettings");
           Intent.setcomponent (comp);
        Intent.setaction ("Android.intent.action.VIEW");
        } context.startactivity (Intent);
        catch (Exception e) {e.printstacktrace (); } Mmaterialdialog. dismiss ();
           }). Setnegativebutton ("Cancel", new View.onclicklistener () {@Override public void OnClick (View v) {
      Mmaterialdialog.dismiss ();

    }
    });
  Mmaterialdialog.show ();
 }

How to do judgment processing:

  /**
   * To determine whether the network/
  private void Checknet () {
    if (!mchecknetwork.isnetworkavailable (Getapplication ())) {
      Mchecknetwork.shownetdialog (mainactivity.this);
    } else {
      Toast.maketext (mainactivity.this,
      "There is network, haha", toast.length_short). Show ();
    }
  

The specific code is as follows:

Mainactivity.java

Package com.bzu.gxs.chectnetwork;
Import android.app.Activity;
Import Android.os.Bundle;
Import Android.view.View;
Import Android.widget.Button;

Import Android.widget.Toast; public class Mainactivity extends activity implements view.onclicklistener{private Checknetwork mchecknetwork =new Chec
  Knetwork ();

  Private Button Btn_check;
    @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
    Setcontentview (R.layout.activity_main);
  Init ();
      /** * Click event * @param view/@Override public void OnClick (view view) {switch (View.getid ()) {
    Case R.id.btn_check:checknet ();
      }/** * To determine if network/private void Checknet () {if (!mchecknetwork.isnetworkavailable (Getapplication ())) {
    Mchecknetwork.shownetdialog (Mainactivity.this);
    }else {toast.maketext (Mainactivity.this, "There is network, haha", toast.length_short). Show (); }/** * Initialization/private void init (){Btn_check = (Button) Findviewbyid (R.id.btn_check);
  Btn_check.setonclicklistener (this);
 }
}

Checknetwork.java

Package com.bzu.gxs.chectnetwork;
Import Android.content.ComponentName;
Import Android.content.Context;
Import android.content.Intent;
Import Android.media.browse.MediaBrowser;
Import Android.net.ConnectivityManager;
Import Android.net.NetworkInfo;
Import Android.os.Build;

Import Android.view.View;

Import Me.drakeet.materialdialog.MaterialDialog;
 /** * Network detection * Created by GXS on 2016/5/13.

  * * Public class Checknetwork {private Materialdialog mmaterialdialog; /** * Detection Network connection * * @param con * @return/public boolean isnetworkavailable (context con) {Connectivit
    Ymanager cm = (Connectivitymanager) con. Getsystemservice (Context.connectivity_service);
    if (cm = = null) return false;
    Networkinfo NetInfo = Cm.getactivenetworkinfo ();
    if (NetInfo = = null) {return false;
    } if (netinfo.isconnected ()) {return true;
  return false; /** * Prompts to set the Network Connection dialog box * * @param context/public void shownetdialOG (Final context) {Mmaterialdialog = new Materialdialog (context). Setmessage ("The furthest distance in the world is no net"). SetPos Itivebutton ("Check Settings", new View.onclicklistener () {@Override public void OnClick (View v) {Intent inte
        NT = NULL;
        try {@SuppressWarnings ("deprecation") String sdkversion = Android.os.Build.VERSION.SDK; if (integer.valueof (sdkversion) > Ten) {intent = new Intent (Android.provider.Settings.ACTION_WIRELESS_SETTIN
        GS);
           else {intent = new intent (); ComponentName comp = new ComponentName ("Com.android.settings", "com.android.settings.Wireles
           Ssettings ");
           Intent.setcomponent (comp);
        Intent.setaction ("Android.intent.action.VIEW");
        } context.startactivity (Intent);
        catch (Exception e) {e.printstacktrace ();

      } Mmaterialdialog.dismiss (); }). Setnegativebutton ("Cancel", new View.onclicklistener () {@Override public void OnClick (View v) {Mmaterialdialog.dismiss
      ();

    }
    });
  Mmaterialdialog.show ();

 }
}

Activity_main.xml

<?xml version= "1.0" encoding= "Utf-8"?> <relativelayout xmlns:android=
"http://schemas.android.com/apk" /res/android "
  xmlns:tools=" Http://schemas.android.com/tools "
  android:layout_width=" Match_parent
  " android:layout_height= "Match_parent"
  android:paddingbottom= "@dimen/activity_vertical_margin"
  android: paddingleft= "@dimen/activity_horizontal_margin"
  android:paddingright= "@dimen/activity_horizontal_margin"
  android:paddingtop= "@dimen/activity_vertical_margin"
  tools:context= " Com.bzu.gxs.chectnetwork.MainActivity ">

  <button
    android:id=" @+id/btn_check "
    android: Layout_width= "Wrap_content"
    android:layout_height= "wrap_content" android:text=
    "test"/>
Relativelayout>

Note: You need to include in the manifest file Androidmanifest.xml

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

The above is the entire content of this article, I hope to help you learn, but also hope that we support the cloud habitat community.