Android listview的自定义字体

Question

我的Android活动有一个自定义字体.

MainActivity.class

    private void initControls() {
    // TODO Auto-generated method stub
    header = (TextView) findViewById (R.id.tvAccommodations);
    lv = (ListView) findViewById (R.id.lvAccommodations);
    text = (TextView) findViewById (R.id.textView);

    Typeface tf = Typeface.createFromAsset(getAssets(),
            "fonts/heartbre.ttf");
    header.setTypeface(tf);
    text.setTypeface(tf);



    ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
                    R.array.abra_hotel, R.layout.custom_list_text);
            lv.setAdapter(adapter);
            header.setText(value);

custom_list_text.xml

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/list_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="18sp"
android:textStyle="bold"
android:text="@string/app_name"
android:paddingLeft="6dip" />

Android抛出NullPointerException.为什么会这样？任何帮助表示赞赏.谢谢.

logcat的:

    03-08 19:48:03.859: E/AndroidRuntime(413): Caused by: java.lang.NullPointerException
    03-08 19:48:03.859: E/AndroidRuntime(413):  at com.say.philippineexplorer.PlaceAccommodations.initControls(PlaceAccommodations.java:34)
    03-08 19:48:03.859: E/AndroidRuntime(413):  at com.say.philippineexplorer.PlaceAccommodations.onCreate(PlaceAccommodations.java:22)

Answer 1

这是自定义适配器类和构造函数

class CustomAdapter extends ArrayAdapter<CharSequence>{

    Context context; 
    int layoutResourceId;    
    CharSequence data[] = null;
    Typeface tf; 

public CustomAdapter(Context context, int layoutResourceId, CharSequence[] data, String FONT ) { 
    super(context, layoutResourceId, data);
    this.layoutResourceId = layoutResourceId;
    this.context = context;
    this.data = data;
    tf = Typeface.createFromAsset(context.getAssets(), FONT);
}   

将您要使用的字体放在您的资源文件夹中,并填写您的列表视图,如下所示:

listAdapter = new CustomAdapter(this, R.layout.custom_list_text, R.array.abra_hotel, "name_of_font.ttf");