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[英]Android application work on virtual device but not on real device
[英]Java Client Android On virtual device is working, on real device not
在虛擬設備上正在工作,在真實設備上卻沒有。 檢查所有IP,許多端口,但什么也沒有。
安卓7.1.1 Lenovopad TB-X304F
在清單中:
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
碼:
public class MainActivity extends AppCompatActivity {
EditText e1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
e1 = (EditText)findViewById(R.id.editText);
}
public void send_text(View v) {
String message = e1.getText().toString();
myTask mt = new myTask();
mt.execute(message);
Toast.makeText(getApplicationContext(),"Data sent: "+e1.getText().toString(), Toast.LENGTH_LONG).show();
}
class myTask extends AsyncTask<String, Void, Void>{
Socket s;
PrintWriter printWriter;
@Override
protected Void doInBackground(String... params){
try {
String message = params[0];
s = new Socket("192.168.1.5", 6001);
printWriter = new PrintWriter(s.getOutputStream());
printWriter.write(message);
printWriter.flush();
printWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
錯誤:
W / System.err:java.net.ConnectException:連接超時
錯誤是我不知道必須禁用防火牆並打開端口。 我打開了端口,一切正常。
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