Android網絡監聽和網絡判斷示例介紹
一、在AndroidMainfest.xml中添加權限
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.INTERNET" />
二、NetUtilSS 網絡判斷工具類
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;
import android.util.Log;
import java.util.List;
public class NetUtilSS {
// 沒有連接
public static final int NETWORN_NONE = 0;
// wifi連接
public static final int NETWORN_WIFI = 1;
// 手機網絡數據連接
public static final int NETWORN_2G = 2;
public static final int NETWORN_3G = 3;
public static final int NETWORN_4G = 4;
public static final int NETWORN_MOBILE = 5;
private NetUtilSS() {
/* cannot be instantiated */
throw new UnsupportedOperationException("cannot be instantiated");
}
/**
* 判斷網絡是否連接
*
* @param context
* @return
*/
public static boolean isConnected(Context context) {
ConnectivityManager connectivity = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
// 如果僅僅是用來判斷網絡連接
if (null != connectivity) {
NetworkInfo info = connectivity.getActiveNetworkInfo();
if (null != info && info.isConnected()) {
if (info.getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
return false;
}
/**
* 判斷GPS是否打開
*
* @param context
* @return
*/
public static boolean isGpsEnabled(Context context) {
LocationManager lm = ((LocationManager) context
.getSystemService(Context.LOCATION_SERVICE));
List<String> accessibleProviders = lm.getProviders(true);
return accessibleProviders != null && accessibleProviders.size() > 0;
}
/**
* 判斷是否是3G網絡
* @param context
* @return
*/
public static boolean is3rd(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkINfo = cm.getActiveNetworkInfo();
if (networkINfo != null
&& networkINfo.getType() == ConnectivityManager.TYPE_MOBILE) {
return true;
}
return false;
}
/**
* 判斷是wifi還是3g網絡,用戶的體現性在這裡瞭，wifi就可以建議下載或者在線播放。
*
* @param context
* @return
*/
public static boolean isWifi(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkINfo = cm.getActiveNetworkInfo();
if (networkINfo != null
&& networkINfo.getType() == ConnectivityManager.TYPE_WIFI) {
return true;
}
return false;
}
/**
* 打開網絡設置界面
*/
public static void openSetting(final Activity activity) {
Log.e("netutils", "我是網絡1111");
final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setTitle("開啟網絡服務");
builder.setMessage("網絡沒有連接，請到設置進行網絡設置！");
builder.setPositiveButton("確定",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
if (android.os.Build.VERSION.SDK_INT > 10) {
// 3.0以上打開設置界面，也可以直接用ACTION_WIRELESS_SETTINGS打開到wifi界面
activity.startActivity(new Intent(
android.provider.Settings.ACTION_SETTINGS));
} else {
activity.startActivity(new Intent(
android.provider.Settings.ACTION_WIRELESS_SETTINGS));
}
dialog.cancel();
}
});
builder.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
Log.e("netutils", "我是網絡");
}
});
builder.show();
}
/**
* 返回當前網絡連接類型
*
* @param context 上下文
* @return
*/
public static int getNetworkState(Context context) {
ConnectivityManager connManager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (null == connManager)
return NETWORN_NONE;
NetworkInfo activeNetInfo = connManager.getActiveNetworkInfo();
if (activeNetInfo == null || !activeNetInfo.isAvailable()) {
return NETWORN_NONE;
}
// Wifi
NetworkInfo wifiInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if (null != wifiInfo) {
NetworkInfo.State state = wifiInfo.getState();
if (null != state)
if (state == NetworkInfo.State.CONNECTED || state == NetworkInfo.State.CONNECTING) {
return NETWORN_WIFI;
}
}
// 網絡
NetworkInfo networkInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
if (null != networkInfo) {
NetworkInfo.State state = networkInfo.getState();
String strSubTypeName = networkInfo.getSubtypeName();
if (null != state)
if (state == NetworkInfo.State.CONNECTED || state == NetworkInfo.State.CONNECTING) {
switch (activeNetInfo.getSubtype()) {
case TelephonyManager.NETWORK_TYPE_GPRS: // 聯通2g
case TelephonyManager.NETWORK_TYPE_CDMA: // 電信2g
case TelephonyManager.NETWORK_TYPE_EDGE: // 移動2g
case TelephonyManager.NETWORK_TYPE_1xRTT:
case TelephonyManager.NETWORK_TYPE_IDEN:
return NETWORN_2G;
case TelephonyManager.NETWORK_TYPE_EVDO_A: // 電信3g
case TelephonyManager.NETWORK_TYPE_UMTS:
case TelephonyManager.NETWORK_TYPE_EVDO_0:
case TelephonyManager.NETWORK_TYPE_HSDPA:
case TelephonyManager.NETWORK_TYPE_HSUPA:
case TelephonyManager.NETWORK_TYPE_HSPA:
case TelephonyManager.NETWORK_TYPE_EVDO_B:
case TelephonyManager.NETWORK_TYPE_EHRPD:
case TelephonyManager.NETWORK_TYPE_HSPAP:
return NETWORN_3G;
case TelephonyManager.NETWORK_TYPE_LTE:
return NETWORN_4G;
default://有機型返回16,17
//中國移動 聯通 電信 三種3G制式
if (strSubTypeName.equalsIgnoreCase("TD-SCDMA") || strSubTypeName.equalsIgnoreCase("WCDMA") || strSubTypeName.equalsIgnoreCase("CDMA2000")) {
return NETWORN_3G;
} else {
return NETWORN_MOBILE;
}
}
}
}
return NETWORN_NONE;
}
}
三、IntentReceiver網絡監聽工具類
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
public class IntentReceiver extends BroadcastReceiver {
private boolean isnet ;
@Override
public void onReceive(Context context, Intent intent) {
ConnectivityManager manager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = manager.getActiveNetworkInfo();
if (isnet == true){
if (activeNetworkInfo != null && activeNetworkInfo.isAvailable()){
ToastUtils.getInstance(context).show("網絡連接成功",1000);
SpUtils.putString(context,"network","有網");
isnet = false;
}else{
ToastUtils.getInstance(context).show("網絡開小差瞭",1000);
SpUtils.putString(context,"network","無網");
isnet = true;
}
}else{
isnet = true;
}
isnet = true;
}
}
四、BaseActivity
import androidx.appcompat.app.AppCompatActivity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.os.Bundle;
import android.widget.Toast;
public class BaseActivity extends AppCompatActivity {
private BroadcastReceiver receiver = new IntentReceiver();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_base);
IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
this.registerReceiver(receiver,filter);
boolean connected = NetUtilSS.isConnected(this);
if (connected) {
boolean wifi = NetUtilSS.isWifi(this);
boolean rd = NetUtilSS.is3rd(this);
if (wifi) {
Toast.makeText(this, "WIFI已經連接", Toast.LENGTH_SHORT).show();
SpUtils.putString(this,"network","有網");
} else if (rd) {
Toast.makeText(this, "手機流量已經連接", Toast.LENGTH_SHORT).show();
SpUtils.putString(this,"network","有網");
} else {
Toast.makeText(this, "網絡連接不可用，請檢查網絡設置", Toast.LENGTH_SHORT).show();
SpUtils.putString(this,"network","無網");
// NetUtilSS.openSetting((Activity) mContext);
}
} else {
Toast.makeText(this, "網絡連接不可用，請檢查網絡設置", Toast.LENGTH_SHORT).show();
SpUtils.putString(this,"network","無網");
// NetUtilSS.openSetting((Activity) mContext);
}
}
public static boolean isNetwork(Context context){
String network = SpUtils.getString(context, "network");
if (network.equals("有網")){
return true;
}
return false;
}
@Override
protected void onDestroy() {
super.onDestroy();
unregisterReceiver(receiver);
}
}
五、MainActivity
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
public class MainActivity extends BaseActivity {
String TAG = "MainActivity";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (isNetwork(this)){
Log.e(TAG,"有網");
//請求
//....
}else {
Log.e(TAG,"無網");
//提示
//....
}
}
}
到此這篇關於Android網絡監聽和網絡判斷示例介紹的文章就介紹到這瞭,更多相關Android網絡監聽和網絡判斷內容請搜索WalkonNet以前的文章或繼續瀏覽下面的相關文章希望大傢以後多多支持WalkonNet！
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