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android中检測网络连接状态简单总结

时间:2017-04-16 17:56:37      阅读:256      评论:0      收藏:0      [点我收藏+]

标签:text   schema   wifi   网络   模型   cin   connected   listen   oncreate   

相应差点儿没有不跟网络打交道的android应用,那么在实际中就需求检測手机是否有网络连接。甚至须要推断是何种方式连接,这样能给用户带来更好的体验和一些使用指导,以下给出一些经常使用的推断。假设要知道是否有网络、以及是採用wifi连接的还是3G连接的。调用以下相应方法模型就OK了。代码例如以下:
TestNetworkActivity:
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package com.home.testnetwork; 
   
import java.util.List; 
   
import android.app.Activity; 
import android.content.Context; 
import android.location.LocationManager; 
import android.net.ConnectivityManager; 
import android.net.NetworkInfo; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 
   
public class TestNetworkActivity extends Activity implements OnClickListener { 
    private Button checkBtn; 
    private EditText netText; 
    private EditText wifiText; 
    private EditText net3gText; 
    private EditText gpsText; 
   
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.main); 
        checkBtn = (Button) findViewById(R.id.main_btn_check); 
        checkBtn.setOnClickListener(this); 
        wifiText = (EditText) findViewById(R.id.main_et_wifi); 
        net3gText = (EditText) findViewById(R.id.main_et_3g); 
        gpsText = (EditText) findViewById(R.id.main_et_GPS); 
        netText = (EditText) findViewById(R.id.main_et_net); 
    
   
    /**
     * 检測网络是否连接
     
     * @return
     */ 
    private boolean isNetConnected() { 
        ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); 
        if (cm != null) { 
            NetworkInfo[] infos = cm.getAllNetworkInfo(); 
            if (infos != null) { 
                for (NetworkInfo ni : infos) { 
                    if (ni.isConnected()) { 
                        return true
                    
                
            
        
        return false
    
   
    /**
     * 检測wifi是否连接
     
     * @return
     */ 
    private boolean isWifiConnected() { 
        ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); 
        if (cm != null) { 
            NetworkInfo networkInfo = cm.getActiveNetworkInfo(); 
            if (networkInfo != null 
                    && networkInfo.getType() == ConnectivityManager.TYPE_WIFI) { 
                return true
            
        
        return false
    
   
    /**
     * 检測3G是否连接
     
     * @return
     */ 
    private boolean is3gConnected() { 
        ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); 
        if (cm != null) { 
            NetworkInfo networkInfo = cm.getActiveNetworkInfo(); 
            if (networkInfo != null 
                    && networkInfo.getType() == ConnectivityManager.TYPE_MOBILE) { 
                return true
            
        
        return false
    
   
    /**
     * 检測GPS是否打开
     
     * @return
     */ 
    private boolean isGpsEnabled() { 
        LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 
        List<String> accessibleProviders = lm.getProviders(true); 
        for (String name : accessibleProviders) { 
            if ("gps".equals(name)) { 
                return true
            
        
        return false
    
   
    @Override 
    public void onClick(View v) { 
        if (v == checkBtn) { 
            netText.setText(isNetConnected() + ""); 
            wifiText.setText(isWifiConnected() + ""); 
            net3gText.setText(is3gConnected() + ""); 
            gpsText.setText(isGpsEnabled() + ""); 
        
    

 

 
布局xml:
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical"
   
    <Button 
        android:id="@+id/main_btn_check" 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:text="检測网络" /> 
   
    <LinearLayout 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content"
   
        <TextView 
            android:layout_width="wrap_content" 
            android:layout_height="wrap_content" 
            android:text="网络是否连接:" /> 
   
        <EditText 
            android:id="@+id/main_et_net" 
            android:layout_width="match_parent" 
            android:layout_height="wrap_content" 
            android:layout_marginLeft="10dp" 
            android:enabled="false" /> 
    </LinearLayout> 
   
    <LinearLayout 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content"
   
        <TextView 
            android:layout_width="wrap_content" 
            android:layout_height="wrap_content" 
            android:text="wifi是否连接:" /> 
   
        <EditText 
            android:id="@+id/main_et_wifi" 
            android:layout_width="match_parent" 
            android:layout_height="wrap_content" 
            android:layout_marginLeft="10dp" 
            android:enabled="false" /> 
    </LinearLayout> 
   
    <LinearLayout 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content"
   
        <TextView 
            android:layout_width="wrap_content" 
            android:layout_height="wrap_content" 
            android:text="3G是否连接:" /> 
   
        <EditText 
            android:id="@+id/main_et_3g" 
            android:layout_width="match_parent" 
            android:layout_height="wrap_content" 
            android:layout_marginLeft="10dp" 
            android:enabled="false" /> 
    </LinearLayout> 
   
    <LinearLayout 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content"
   
        <TextView 
            android:layout_width="wrap_content" 
            android:layout_height="wrap_content" 
            android:text="GPS是否打开:" /> 
   
        <EditText 
            android:id="@+id/main_et_GPS" 
            android:layout_width="match_parent" 
            android:layout_height="wrap_content" 
            android:layout_marginLeft="10dp" 
            android:enabled="false" /> 
    </LinearLayout> 
   
</LinearLayout>
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android中检測网络连接状态简单总结

标签:text   schema   wifi   网络   模型   cin   connected   listen   oncreate   

原文地址:http://www.cnblogs.com/wgwyanfs/p/6719251.html

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