Für eine andere Listenansicht in einer anderen Aktivität ist die Textfarbe der Elemente schwarz, wie es sein sollte. In einer anderen Aktivität, in der setAdapter in einem neuen Thread verwendet wird, ist die Textfarbe beim Erstellen der neuen Elemente weiß, wenn ich sie schwarz möchte. Hier ist der Inhalt von Layout und Java-Code:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="project.yemeb.Search"
android:background="#ffffffff">

<RelativeLayout
    android:layout_width="fill_parent"
    android:layout_height="100dp"
    android:background="@drawable/back_web"
    android:paddingLeft="20dp"
    android:paddingRight="20dp"
    android:id="@+id/relativeLayout"
    android:layout_alignParentTop="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentEnd="true">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Search"
        android:id="@+id/button2"
        android:background="#ffffffff"
        android:onClick="onBtnClick"
        android:layout_centerVertical="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/editText"
        android:layout_alignBottom="@+id/button2"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:background="#ffffffff"
        android:layout_toLeftOf="@+id/button2"
        android:layout_toStartOf="@+id/button2"
        android:layout_alignTop="@+id/button2" />
</RelativeLayout>

<ListView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/listView"
    android:layout_alignParentBottom="true"
    android:layout_below="@+id/relativeLayout"
    android:headerDividersEnabled="false" />
</RelativeLayout>

Java-Code:

package project.yemeb;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;


public class Search extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_search);
    Bundle bundle = getIntent().getExtras();
    String message = bundle.getString("message");
    ((EditText) findViewById(R.id.editT,ext)).setText(message);
    final String url = "http://example.com/sql.php?keyword="+((EditText) findViewById(R.id.editText)).getText().toString()+"&mode=6";
    new Thread() {
        @Override
        public void run() {
            try {
                HttpClient httpclient = new DefaultHttpClient();
                HttpResponse response = httpclient.execute(new HttpGet(url));
                StatusLine statusLine = response.getStatusLine();
                if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
                    ByteArrayOutputStream out = new ByteArrayOutputStream();
                    try {
                        response.getEntity().writeTo(out);
                        out.close();
                    } catch (IOException e) {
                    }
                    String responseString = out.toString();
                    String[] list = responseString.split("\\|");
                    for(String f : list)
                    {
                        ((MyApplication)getApplication()).setSearches(f);
                    }
                    final ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(),
                            android.R.layout.simple_list_item_1, ((MyApplication)getApplication()).getSearches());
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {

                            ((ListView) findViewById(R.id.listView)).setAdapter(adapter);
                        }

                    });
                    ((ListView) findViewById(R.id.listView)).setOnItemClickListener(new AdapterView.OnItemClickListener() {

                        @Override
                        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                                                long arg3) {
                            Intent intent = new Intent(getApplicationContext(), List.class);
                            intent.putExtra("message", ((String) ((ListView) findViewById(R.id.listView)).getItemAtPosition(arg2)));
                            startActivity(intent);
                        }
                    });
                    //..more logic
                } else {
                    //Closes the connection.
                    try {
                        response.getEntity().getContent().close();
                        throw new IOException(statusLine.getReasonPhrase());
                    } catch (IOException e) {
                    }
                }
            }
            catch (ClientProtocolException e)
            {

            }
            catch (IOException e)
            {

            }
        }
    }.start();
}


@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.search, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}
}

Wie löse ich dieses Problem? Es sind keine Fehler aufgetreten.