android - 区分标题和描述

Question

我有一个列表视图。我想区分标题和描述。我想显示标题一种颜色，而描述是另一种颜色。我怎样才能做到这一点？我有以下用于创建列表视图的代码。

活动：

public class Lisearch extends Activity {
    private ListView lv;
    private EditText et;
    private String listview_array[] = {"ONE:\n one is the first letter"};

private ArrayList<String> array_sort= new ArrayList<String>();
    int textlength=0;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_lisearch);
        TextView tv=(TextView)findViewById(R.id.text);
        lv = (ListView) findViewById(R.id.ListView01);
        et = (EditText) findViewById(R.id.EditText01);
        //lv.setAdapter(new ArrayAdapter<String>(this,
        //R.layout.activity_lisearch, listview_array));

        et.addTextChangedListener(new TextWatcher()
        {
        public void afterTextChanged(Editable s)
        {
                                                                        // Abstract Method of TextWatcher Interface.
        }
        public void beforeTextChanged(CharSequence s,
        int start, int count, int after)
        {
        // Abstract Method of TextWatcher Interface.
        }
        public void onTextChanged(CharSequence s,
        int start, int before, int count)
        {
        textlength = et.getText().length();
        array_sort.clear();
        for (int i = 0; i < listview_array.length; i++)
        {
        if (textlength <= listview_array[i].length())
        {
        if(et.getText().toString().equalsIgnoreCase(
        (String)
        listview_array[i].subSequence(0,
        textlength)))
        {
                    array_sort.add(listview_array[i]);
                   }
                   }
        }
        lv.setAdapter(new ArrayAdapter<String>
        (Lisearch.this,
        R.layout.list,R.id.text, array_sort));

搜索.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/LinearLayout01"
                android:layout_width="fill_parent"
android:layout_height="fill_parent"
                xmlns:android="http://schemas.android.com/apk/res/android"
                android:orientation="vertical"
                android:background="@drawable/aa"                
                >
<EditText android:id="@+id/EditText01"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:hint="Search"
android:padding="5dp">
</EditText>

<ListView android:id="@+id/ListView01"
android:layout_width="fill_parent"
android:layout_height="wrap_content" 
     android:listSelector="@drawable/list_selector"
     android:layout_weight="1"
     >
</ListView>
</LinearLayout>

列表.xml：

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/text"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:gravity="center_vertical"
    android:paddingLeft="6dp"
    android:textSize="15sp"
    android:minHeight="?android:attr/listPreferredItemHeight"
    android:textColor="#FF4444"
    android:textStyle="bold"
    android:layout_marginLeft="10dp"


/>

Answer 1

在 list.xml 中为标题和描述使用单独的文本视图。并为文本使用所需的颜色。

public class CustomAdapter extends BaseAdapter {

    private Context mContext;
        String[] array =null;


    public CustomAdapter(Context c,String[] array) {
        this.mContext = c;
        this.array= array;

    }


    public int getCount() {
        return count;
    }

    public Object getItem(int position) {
        return position;
    }

    public long getItemId(int position) {
        return position;
    }

    public View getView(int position, View convertView, ViewGroup parent) {

        LayoutInflater inflater = (LayoutInflater) mContext
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View view = inflater.inflate(R.layout.list, null);

        TextView textView1 = (TextView) view.findViewById(R.id.textView1);
                TextView textView2 = (TextView) view.findViewById(R.id.textView2);

        return view;
    }


}

将此适配器用于您的列表视图。

Answer 2

在您的 list.xml 中，有 2 个 TextView，一个用于标题，一个用于描述，类似于下面的一个

<TextView android:id="@+id/title" android:layout_width="wrap_content"
    android:layout_height="wrap_content" android:text="@string/titleText"
    android:textSize="25dp" />
<TextView android:id="@+id/description"
    android:layout_width="wrap_content" android:layout_height="wrap_content"
    android:textSize="15dp"
    android:layout_below="@id/title" android:textColor="#00FF00" />

这样你就可以有不同的颜色，添加你的适配器如下

SimpleAdapter adapter = new SimpleAdapter(this,list,R.layout.list,new String[] {"Title","Description"},new int[] {R.id.title,R.id.description});
setListAdapter(adapter);