im triying to implement a ping option in my android app, but when y tried the following error is displayed in the debug console:
Error info displayed in console
I/System.out: Sending Ping Request to 127.0.0.1
I/Error starts here: -----------------------------------
W/System.err: android.os.NetworkOnMainThreadException
W/System.err: at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1565)
at libcore.io.BlockGuardOs.sendto(BlockGuardOs.java:364)
at libcore.io.ForwardingOs.sendto(ForwardingOs.java:194)
at libcore.io.IoBridge.sendto(IoBridge.java:556)
at java.net.Inet6AddressImpl.icmpEcho(Inet6AddressImpl.java:267)
W/System.err: at java.net.Inet6AddressImpl.isReachable(Inet6AddressImpl.java:208)
at java.net.InetAddress.isReachable(InetAddress.java:525)
at java.net.InetAddress.isReachable(InetAddress.java:480)
at com.h4lfcr3st.androidswissarmy.PingUtility.BtnMakePing(PingUtility.java:36)
at java.lang.reflect.Method.invoke(Native Method)
at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:385)
W/System.err: at android.view.View.performClick(View.java:7125)
at android.view.View.performClickInternal(View.java:7102)
at android.view.View.access$3500(View.java:801)
at android.view.View$PerformClick.run(View.java:27336)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
W/System.err: at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
I already try the code in intellij and it works just fine, i belive that the problem its with android permisions for internet access. already declared:
<uses-permission android:name="android.permission.INTERNET"/>
in the manifest. the java code its the following:
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import java.io.*;
import java.net.*;
public class PingUtility extends AppCompatActivity {
private EditText HostToPing, pingResults;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ping_utility);
HostToPing = findViewById(R.id.ETIpHost);
pingResults = findViewById(R.id.ETLogIp);
}
public void BtnMakePing(View view){ //todo corregir
String ipToPing = HostToPing.getText().toString();
try{
Log.i("IpToPing", "----------------"+ ipToPing);
InetAddress geek = InetAddress.getByName(ipToPing);
Toast.makeText(this, "Sending Ping request to " + ipToPing, Toast.LENGTH_SHORT).show();
System.out.println("Sending Ping Request to " + ipToPing);
boolean recheable = geek.isReachable(10000);
pingResults.setText("The host its recheable = " + recheable);
}catch (Exception e){
Log.i("Error starts here" , "-----------------------------------");
e.printStackTrace();
Toast.makeText(this, "Error", Toast.LENGTH_SHORT).show();
}
}
}
sorry for my speeling, im not native english speaker
