网站要怎么建立,网页制作流程图片,云南文山地图,东台企业网站建设我一直试图通过将包含我目录名称的log.i字符串值添加到数组中,然后使用数组适配器通过listView打印它们,来在listView中的目录中打印项目.但是,当我尝试运行该应用程序时,它将打印包含目录名称的日志,但不会在listView上打印任何内容.有什么帮助吗#xff1f;这是我的代码这是我的代码import android.os.AsyncTask;import android.os.Bundle;import java.io.DataInputStream;import java.io.DataOutputStream;import java.util.ArrayList;import java.util.Properties;import android.view.Menu;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import com.jcraft.jsch.Channel;import com.jcraft.jsch.JSch;import com.jcraft.jsch.Session;import android.app.Activity;import android.util.Log;import android.widget.ListView;import android.widget.Toast;public class MainActivity extends Activity {private String user root; //usernameprivate String pass password; //passwordprivate String host hostname; //hostnameprivate int portNum 22; //replace port numberOverridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);new AsyncTask() {Overrideprotected Void doInBackground(Integer... params) {try {executeRemoteCommand(user, pass, host, portNum);} catch (Exception e) {e.printStackTrace();}return null;}}.execute(1);}public String executeRemoteCommand(String username, String password, String hostname, int port)throws Exception {//declare list and arrayfinal ListView list (ListView)findViewById(R.id.choose_sound_listView);ArrayList soundNames new ArrayList();JSch jsch new JSch();Session session jsch.getSession(username, hostname, port);session.setPassword(password);// Avoid asking for key confirmationProperties prop new Properties();prop.put(StrictHostKeyChecking, no);session.setConfig(prop);session.connect();Channel channel session.openChannel(shell);channel.connect();DataInputStream dataIn new DataInputStream(channel.getInputStream());DataOutputStream dataOut new DataOutputStream(channel.getOutputStream());// send ls command to the serverdataOut.writeBytes(ls);dataOut.flush();// and print the responseString line dataIn.readLine();String out line ;// loop to add log string values to arrayfor (int i 0; i 10; i) {line dataIn.readLine();out line ;Log.i(SSH, : line);//add to arraysoundNames.add(line);}ArrayAdapter adapter new ArrayAdapter(this,android.R.layout.simple_expandable_list_item_1, android.R.id.text1, soundNames);list.setAdapter(adapter);list.setOnItemClickListener(new AdapterView.OnItemClickListener() {Overridepublic void onItemClick(AdapterView arg0, View arg1,int position, long arg3) {// Show AlertToast.makeText(getApplicationContext(),Alert, Toast.LENGTH_LONG).show();}});dataIn.close();dataOut.close();channel.disconnect();session.disconnect();return out;}Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.menu_main, menu);return true;}}