Android-如何设置文本视图和背景的颜色以及共享参考

在我的应用程序中，我有一个名为“设置”的菜单按钮，在这个按钮中，我可以选择一些布局背景的颜色设置。不幸的是，我将两个布局组合在一起以显示我想要显示的内容，问题是我只能设置背景颜色（即布局中的背景颜色），而不能设置TextView的颜色（即另一个布局中的背景颜色）

Layout main.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" 
android:id="@+id/main_layout">
<EditText 
android:id="@+id/editText1" 
android:layout_height="65dip" 
android:layout_marginTop="2dip"
android:hint="Scrivi" 
android:layout_width="fill_parent" />
<ListView android:id="@+id/list" 
android:layout_height="wrap_content" 
android:layout_width="match_parent" 
android:fastScrollEnabled="true">
</ListView>
</LinearLayout>

---

通过我的代码，我可以更改layout main.xml的背景颜色，但我还需要更改listitem_row.xml的文本视图颜色。我想一起改变颜色（例如：黑色为背景，白色为文本，白色为背景，黑色为文本，等等）。我怎样才能继续？感谢所有能回答的人。

我想我在第一次回答时不理解PreferenceActivity、PreferenceManager或您的问题。您的问题在于设置列表的样式，而不是存储您的首选项，对吗

我认为为活动设定主题可能是一个解决方案。讨论主题更改时如何更新文本颜色。可能是开始阅读主题的地方

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:id="@+id/main_layout">
<TextView
android:id="@+id/textView1"
android:text="TextView"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge" 
android:layout_width="fill_parent">
</TextView>
<TextView
android:text="TextView"
android:id="@+id/textView2"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
</TextView>
</LinearLayout>

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.graphics.Color;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;

public class SearchCocktail extends Activity{
EditText ed;
ListView lview; 

String[] first = { "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight",     "Nine", "Ten"};

String[] second = { "Uno", "Due", "Tre", "Quattro", "Cinque", "Sei", "Sette", "Otto",  "Nove", "Dieci"};

int textlength = 0;
ArrayList<String> first_sort = new ArrayList<String>();
ArrayList<String> second_sort = new ArrayList<String>();

public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

ed = (EditText) findViewById(R.id.editText1);
lview = (ListView) findViewById(R.id.list);
lview.setAdapter(new MyCustomAdapter(first, second));
...........
public View getView(int position, View convertView, ViewGroup parent){

LayoutInflater inflater = getLayoutInflater();
View row;

row = inflater.inflate(R.layout.listitem_row, parent, false);

TextView textview = (TextView) row.findViewById(R.id.textView1);
TextView textview1 = (TextView) row.findViewById(R.id.textView2);

textview.setText(data_first[position]);
textview1.setText(data_second[position]);

return (row);
}
}

@Override
protected void onResume(){
super.onResume();
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
Editor editor = prefs.edit();

String colorePref = prefs.getString(PreferencesFromXml.COLORE_PREF,  PreferencesFromXml.COLORE_DEFAULT);
int coloreDiSfondo = Color.parseColor(colorePref);
findViewById(R.id.list).setBackgroundColor(coloreDiSfondo);
editor.commit();    
}
}

import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceActivity;
import android.preference.PreferenceManager;

public class PreferencesFromXml extends PreferenceActivity{

public static final String COLORE_DEFAULT = "#000000";

public static final String COLORE_PREF = "colore";

public static final String TITOLO_PREF = "titolo";



@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);

    addPreferencesFromResource(R.xml.preferences);

    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
    Editor editor = prefs.edit();

    Preference titoloPrefs = findPreference(TITOLO_PREF);
    titoloPrefs.setSummary(prefs.getString(TITOLO_PREF, getString(R.string.titolo_custom)));
    titoloPrefs.setOnPreferenceChangeListener(new OnPreferenceChangeListener()
    {
        public boolean onPreferenceChange(Preference prefs, Object value)
        {
            prefs.setSummary((CharSequence) value);
            return true;
        }
    });editor.commit();
}
}