在Android中使用后台线程之前,如何监控活动中的网络状态?
我是Android的新手。我需要在整个应用程序中检查网络连接,并在状态更改时通知用户网络状态。请告诉我如何处理一些示例代码。请提前感谢您可以使用RunNuithRead和ConnectionManager在固定时间后检查网络状态,并将消息显示为:在Android中使用后台线程之前,如何监控活动中的网络状态?,android,Android,我是Android的新手。我需要在整个应用程序中检查网络连接,并在状态更改时通知用户网络状态。请告诉我如何处理一些示例代码。请提前感谢您可以使用RunNuithRead和ConnectionManager在固定时间后检查网络状态,并将消息显示为: private boolean mNetworkRunning=false; private ConnectivityManager connMgr; public void onCreate(Bundle savedInstanceState)
private boolean mNetworkRunning=false;
private ConnectivityManager connMgr;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView (R.layout.main);
mClockRunning=true;
NetworkStatusThread();
}
@Override
protected void onDestroy() {
super.onDestroy();
// Stop Thread Here.
mNetworkRunning=false;
}
public void NetworkStatusThread(){
Thread th=new Thread(){
@Override
public void run(){
try
{
while(mNetworkRunning)
{
Thread.sleep(1000L);// set time here for refresh time in show update to user
NetworkActivity.this.runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
if(mNetworkRunning)
{
boolean statu=isMobileNetworkAvailable();
if(statu==true)
Toast.makeText(YourCurrentActivity.this, "Network Available",Toast.LENGTH_LONG).show();
else
Toast.makeText(YourCurrentActivity.this, "Network Not Available",Toast.LENGTH_LONG).show();
}
};
}
}catch (InterruptedException e) {
// TODO: handle exception
}
}
};
th.start();
}
public boolean isMobileNetworkAvailable(Context con){
if(null == connMgr){
connMgr = (ConnectivityManager)con.getSystemService(Context.CONNECTIVITY_SERVICE);
}
NetworkInfo wifiInfo = connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
NetworkInfo mobileInfo = connMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
if(wifiInfo.isAvailable()){
return true;
}else if(mobileInfo.isAvailable()){
return true;
}else{
return false;
}
}
第二个选项不使用线程,然后您可以注册一个用于连接的接收者。\u CHANGE Manifest.xml,如下所示:
< !-- Needed to check when the network connection changes -->
< uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
< receiver android:name="you_package_name.ConnectionChangeReceiver"
android:label="NetworkConnection">
< intent-filter>
< action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
< /intent-filter>
< /receiver>
谢谢你,伊姆兰。它帮了我很多。有什么解决方案可以在状态改变时通知状态而不使用任何thread@srinu:是使用查看我的编辑答案broadcastreceiver@srinu当前位置我只知道我告诉你的这两种方式。这可能有助于解决您的问题OK imran如何在我的活动中使用此连接ChangeReceiver如何在中显示toast网络状态更改时使用上述代码的每个活动?请尝试此活动我使用了一些静态代码,就像每次需要检查公共布尔值isMobileNetworkAvailableContext con{ifnull==connMgr{connMgr=ConnectivityManagercon.getSystemServiceContext.CONNECTIVITY_SERVICE;}时一样NetworkInfo wifiInfo=connMgr.getNetworkInfoConnectivityManager.TYPE_WIFI;NetworkInfo mobileInfo=connMgr.getNetworkInfoConnectivityManager.TYPE_MOBILE;ifwifiInfo.isAvailable{return true;}else ifmobileInfo.isAvailable{return true;}else{return false;}
public class ConnectionChangeReceiver extends BroadcastReceiver {
private static final String TAG =ConnectionChangeReceiver.class.getSimpleName();
@Override
public void onReceive(Context context, Intent intent) {
boolean success = false;
ConnectivityManager connManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
State state = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();
//WIFI
if (State.CONNECTED == state) {
success = true;
}
//GPRS
state = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();
if (State.CONNECTED != state) {
success = true;
}
if (!success) {
Toast.makeText(context, "SHOW STATUS HERE", Toast.LENGTH_LONG).show();
}
}