如何设置ListView的行内文本自定义字体？ [英] How to set custom font for ListView row text?
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问题描述
我有两个要素，我从数据库中检索列表。
我也使用碎片...
欲样式每一行中一个自定义的方式在列表视图中的文本。
xml文件在那里我有我使用的ListView控件元素是TextView的：
useful_numbers_fragment.xml
＆LT; LinearLayout中的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：方向=垂直
机器人：layout_width =match_parent
机器人：layout_height =match_parent
机器人：ID =@ + ID / useful_nums_h_layout_header＆GT; ＆LT;的TextView
机器人：layout_width =match_parent
机器人：layout_height =WRAP_CONTENT
机器人：ID =@ + ID / useful_nums_group_item
机器人：TEXTSIZE =15dp
机器人：layout_gravity =左/＆GT; ＆LT; ListView控件
机器人：ID =@机器人：ID /列表
机器人：layout_width =match_parent
机器人：layout_height =WRAP_CONTENT
机器人：layout_centerHorizontal =真正的＆GT;
＆LT; /＆的ListView GT;
＆LT; / LinearLayout中＆GT;
我要将此TextView的只是像这样的字样：
@覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，捆绑savedInstanceState）{ 视图
父= inflater.inflate（R.layout.useful_numbers_fragment，集装箱，FALSE）;
字样T = Typeface.createFromAsset（getActivity（）getAssets（），字体/ ArialNarrow.ttf）;
TextView的电视=（TextView中）parent.findViewById（R.id.useful_nums_group_item）;
tv.setTypeface（T）;
回到父母;
}
但我得到一个
了java.lang.RuntimeException：无法启动活动
android.view.InflateException：引起二进制XML文件行＃98：错误充气类片段
java.lang.IllegalStateException：引起不能用自定义内容视图中使用
在android.support.v4.app.ListFragment.setEmptyText（ListFragment.java:234）
在... onViewCreated（）...
我解决这样问题：
@覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，捆绑savedInstanceState）{
视图V = super.onCreateView（充气器，容器，savedInstanceState）;
ViewGroup中父=（ViewGroup中）inflater.inflate（R.layout.useful_numbers_fragment，集装箱，FALSE）;
parent.addView（V，0）;
字样T = Typeface.createFromAsset（getActivity（）getAssets（），字体/ ArialNarrow.ttf）;
TextView的电视=（TextView中）parent.findViewById（R.id.useful_nums_group_item）;
tv.setTypeface（T）;
回到父母;
}
但文字的字体没有改变。
SimpleCursorAdapter.ViewBinder粘结剂=新SimpleCursorAdapter.ViewBinder（）{
@覆盖
公共布尔setViewValue（查看视图，光标光标，诠释参数：columnIndex）{
字样T = Typeface.createFromAsset（getActivity（）getAssets（），字体/ ArialNarrow.ttf）;
TextView的电视=（TextView中）view.findViewById（R.id.useful_nums_group_item）;
tv.setText（tv.getText（））;
tv.setTextColor（Color.RED）;
tv.setTypeface（T）; 返回true;
}
};
simpleCursorAdapter.setViewBinder（粘合剂）;
解决方案
创建延伸 SimpleCursorAdapter 在自定义适配器类的 CustomAdapter 设置外部字体。
请一些变化片段的onCreateView（...）
@覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，捆绑savedInstanceState）{
super.onCreateView（充气器，容器，savedInstanceState）;
视图V =（查看）inflater.inflate（R.layout.useful_numbers_fragment，NULL）;
字样T = Typeface.createFromAsset（getActivity（）getAssets（），字体/ ArialNarrow.ttf）;
TextView的电视=（TextView中）v.findViewById（R.id.useful_nums_group_item）;
tv.setTypeface（T）;
返回伏;
}
code段
公共类CustomAdapter扩展SimpleCursorAdapter { 私人语境mContext;
私人语境appContext;
私人诠释布局;
私人光标CR，
私人最终LayoutInflater吹气;
私人字样吨; 公共CustomAdapter（上下文的背景下，INT布局，光标C，的String []从，INT []到）{
超（背景下，布局，C，从，到）;
this.layout =布局;
this.mContext =背景;
this.inflater = LayoutInflater.from（上下文）;
this.cr = C;
T = Typeface.createFromAsset（context.getAssets（），字体/ ArialNarrow.ttf）;
} @覆盖
公共查看NewView的（上下文的背景下，光标光标的ViewGroup父）{
返回inflater.inflate（布局，NULL）;
} @覆盖
公共无效bindView（查看视图，上下文的背景下，光标光标）{
super.bindView（查看，背景，光标）;
TextView的标题=（TextView中）view.findViewById（R.id.TitleSong）;
TextView的艺术家=（TextView中）view.findViewById（R.id.Artist）;
titleS.setTypeface（T）;
artistS.setTypeface（T）;
INT Title_index = cursor.getColumnIndexOrThrow（MediaStore.Audio.Media.DISPLAY_NAME）;
INT Artist_index = cursor.getColumnIndexOrThrow（MediaStore.Audio.Media.ARTIST）; titleS.setText（cursor.getString（Title_index））;
artistS.setText（cursor.getString（Artist_index））; } }
I have a list with two elements I retrieve from db. I am also using fragments … I want to style the text of each the rows in the list view in a custom way. The xml file where I have the textview that I use for the listView elements is: useful_numbers_fragment.xml
<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/useful_nums_h_layout_header">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/useful_nums_group_item"
android:textSize="15dp"
android:layout_gravity="left"/>
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true" >
</ListView>
</LinearLayout>
I want to set the typeface of this textview just like this :
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View
parent = inflater.inflate(R.layout.useful_numbers_fragment, container, false);
Typeface t = Typeface.createFromAsset(getActivity().getAssets(), "fonts/ArialNarrow.ttf");
TextView tv = (TextView) parent.findViewById(R.id.useful_nums_group_item);
tv.setTypeface(t);
return parent;
}
but I get a java.lang.RuntimeException: Unable to start activity Caused by: android.view.InflateException: Binary XML file line #98: Error inflating class fragment Caused by: java.lang.IllegalStateException: Can't be used with a custom content view at android.support.v4.app.ListFragment.setEmptyText(ListFragment.java:234) at …onViewCreated()...
I resolved the problem in this way:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = super.onCreateView(inflater, container, savedInstanceState);
ViewGroup parent = (ViewGroup) inflater.inflate(R.layout.useful_numbers_fragment, container, false);
parent.addView(v, 0);
Typeface t = Typeface.createFromAsset(getActivity().getAssets(), "fonts/ArialNarrow.ttf");
TextView tv = (TextView) parent.findViewById(R.id.useful_nums_group_item);
tv.setTypeface(t);
return parent;
}
But the text font hasn’t changed.
SimpleCursorAdapter.ViewBinder binder = new SimpleCursorAdapter.ViewBinder() {
@Override
public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
Typeface t = Typeface.createFromAsset(getActivity().getAssets(), "fonts/ArialNarrow.ttf");
TextView tv=(TextView)view.findViewById(R.id.useful_nums_group_item);
tv.setText(tv.getText());
tv.setTextColor(Color.RED);
tv.setTypeface(t);
return true;
}
};
simpleCursorAdapter.setViewBinder(binder);
解决方案
Create a custom adapter class which extends SimpleCursorAdapter in your CustomAdapter set external typeface.
Make some changes in Fragment's onCreateView(...)
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View v= (View) inflater.inflate(R.layout.useful_numbers_fragment, null);
Typeface t = Typeface.createFromAsset(getActivity().getAssets(), "fonts/ArialNarrow.ttf");
TextView tv = (TextView) v.findViewById(R.id.useful_nums_group_item);
tv.setTypeface(t);
return v;
}
Code snippet
public class CustomAdapter extends SimpleCursorAdapter {
private Context mContext;
private Context appContext;
private int layout;
private Cursor cr;
private final LayoutInflater inflater;
private Typeface t;
public CustomAdapter(Context context,int layout, Cursor c,String[] from,int[] to) {
super(context,layout,c,from,to);
this.layout=layout;
this.mContext = context;
this.inflater=LayoutInflater.from(context);
this.cr=c;
t = Typeface.createFromAsset(context.getAssets(), "fonts/ArialNarrow.ttf");
}
@Override
public View newView (Context context, Cursor cursor, ViewGroup parent) {
return inflater.inflate(layout, null);
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
super.bindView(view, context, cursor);
TextView titleS=(TextView)view.findViewById(R.id.TitleSong);
TextView artistS=(TextView)view.findViewById(R.id.Artist);
titleS.setTypeface(t);
artistS.setTypeface(t);
int Title_index=cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DISPLAY_NAME);
int Artist_index=cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST);
titleS.setText(cursor.getString(Title_index));
artistS.setText(cursor.getString(Artist_index));
}
}
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