如何判断软件程序是否联网 联网状态提示信息Android实现
作者:Gxs丶小宇
这篇文章主要为大家详细介绍了如何判断软件程序是否联网的实现代码,Android实现联网状态信息提示,感兴趣的小伙伴们可以参考一下
在项目中,经常需要判断是否有网络连接。最近学习了如何判断软件是否联网,如果没有联网,弹出提示信息,连接网络。
效果:
(1)联网情况下:
(2)不联网情况下:
(3)点击“检测设置”:
源码下载:http://xiazai.jb51.net/201605/yuanma/MyApplication(jb51.net).rar
判断我们的软件是否联网,看代码吧:
/** * 检测网络连接 * * @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; }
如果没有联网,弹出提示框,提示设置网络连接:
/** * 提示设置网络连接对话框 * * @param context */ public void showNetDialog(final Context context) { mMaterialDialog = new MaterialDialog(context) .setMessage("世界上最遥远的距离就是没网") .setPositiveButton("检查设置", new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = null; try { @SuppressWarnings("deprecation") String sdkVersion = android.os.Build.VERSION.SDK; if (Integer.valueOf(sdkVersion) > 10) { intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS); } 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("取消", new View.OnClickListener() { @Override public void onClick(View v) { mMaterialDialog.dismiss(); } }); mMaterialDialog.show(); }
怎么做判断处理:
/** * 判断是否联网 */ private void checkNet() { if(!mCheckNetWork.isNetworkAvailable(getApplication())){ mCheckNetWork.showNetDialog(MainActivity.this); }else { Toast.makeText(MainActivity.this, "有网络,哈哈",Toast.LENGTH_SHORT).show(); } }
具体代码如下:
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 CheckNetWork(); private Button btn_check; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); init(); } /** * 点击事件 * * @param view */ @Override public void onClick(View view) { switch (view.getId()){ case R.id.btn_check: checkNet(); } } /** * 判断是否联网 */ private void checkNet() { if(!mCheckNetWork.isNetworkAvailable(getApplication())){ mCheckNetWork.showNetDialog(MainActivity.this); }else { Toast.makeText(MainActivity.this, "有网络,哈哈",Toast.LENGTH_SHORT).show(); } } /** * 初始化 */ 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; /** * 网络检测 * Created by GXS on 2016/5/13. */ public class CheckNetWork { private MaterialDialog mMaterialDialog; /** * 检测网络连接 * * @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; } /** * 提示设置网络连接对话框 * * @param context */ public void showNetDialog(final Context context) { mMaterialDialog = new MaterialDialog(context) .setMessage("世界上最遥远的距离就是没网") .setPositiveButton("检查设置", new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = null; try { @SuppressWarnings("deprecation") String sdkVersion = android.os.Build.VERSION.SDK; if (Integer.valueOf(sdkVersion) > 10) { intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS); } 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("取消", 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="测试"/> </RelativeLayout>
注意:需要在清单文件AndroidManifest.xml中加入
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> <uses-permission android:name="android.permission.INTERNET"/>
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。