如何解决如何在列表上方显示文本，我使用ListActivity显示自定义列表
|| 亲 当我在类文件中扩展listactivity时，如何在自定义列表上方显示文本。代码如下。public class ServerResponce extends ListActivity {
private ArrayList<listobj> tobj = new ArrayList<listobj>();
static String str1;
PickUpLocation pickup=new PickUpLocation();
String pickupLocid= pickup.locationid;
String des=planner.description;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
**//here not work force close**
// ****setContentView(R.layout.list_item);
**// TextView tv = (TextView)findViewById(R.id.text1);
// tv.setText(\"i want to book a cab for 4 hr/40km from sushant lok to delhi air port at\" +
// \"4 pm today\"
// +\"the cab should be 4 seater compact cab with carriage\");
// tv.setBackgroundColor(R.color.black);**
//
new MyTask().execute();
}
private class MyTask extends AsyncTask<Void,Void,Void>
{
private ProgressDialog progressDialog;
protected void onPreExecute() {
progressDialog = ProgressDialog.show(ServerResponce.this,\"\",\"Loading. Please wait...\",true);
}
protected void onProgressUpdate(Integer... integer){
TextView tv = null;
tv.setText(\"gjh\");
}
@Override
protected Void doInBackground(Void... arg0) {
try {
URL url = new URL(\"http://qrrency.com/mobile/j2me/cab/CabBookingStatus.PHP?requestid=666\");
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
int l=0;
int k=0;
StringBuffer buffer=new StringBuffer();
String str=\" \";
while ((l=in.read())!=-1)
{
buffer.append((char)l);
str=str+(char)l;
}
in.close();
//
try {
JSONObject json = new JSONObject(str);
JSONArray nameArray=json.getJSONArray(\"bookings\");
JSONObject[] cabListing=new JSONObject[nameArray.length()];
for (int i = 0; i < cabListing.length; i++) {
//JSONObject jSONObject = cabListing[i];
JSONObject jSONObject = nameArray.getJSONObject(i);
listobj tweet = new listobj();
JSONObject temp=jSONObject.getJSONObject(\"booking\");
tweet.cabid = temp.getString(\"cabbookingid\");
tweet.author =temp.getString(\"CabDriverName\");
tweet.content =temp.getString(\"price\");
tweet.cabrat=temp.getString(\"cabrating\");
tobj.add(tweet);
}
} catch (JSONException e) {
// Todo Auto-generated catch block
e.printstacktrace();
}
} catch (MalformedURLException e)
{
} catch (IOException e)
{
}
return null;
}
@Override
protected void onPostExecute(Void result) {
progressDialog.dismiss();
setlistadapter(new tListAdaptor(
ServerResponce.this,R.layout.list_item,tobj));
}
}
private class tListAdaptor extends ArrayAdapter<listobj> {
private ArrayList<listobj> tobj;
public tListAdaptor(Context context,int textViewResourceId,ArrayList<listobj> items)
{
super(context,textViewResourceId,items);
this.tobj = items;
}
@Override
public View getView(int position,View convertView,ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater)
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.list_item,null);
}
listobj o = tobj.get(position);
TextView tt = (TextView) v.findViewById(R.id.toptext);
TextView bt = (TextView) v.findViewById(R.id.bottomtext);
TextView bt1 = (TextView) v.findViewById(R.id.bottomtext1);
TextView bt2 = (TextView) v.findViewById(R.id.bottomtext2);
bt.setText(\"CAB NAME: \" +o.author);
bt1.setText(\"CAB ID: \" +o.cabid);
tt.setText(\"PRICE: \" +o.content);
bt2.setText(\"CAB rating: \" +o.cabrat);
return v;
}
}
public String getItem(int position) {
// Todo Auto-generated method stub
return null;
}
}
<?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\"
>
<RelativeLayout xmlns:android= \"http://schemas.android.com/apk/res/android\"
android:orientation=\"vertical\"
android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:paddingTop=\"6dip\">
<TextView android:id=\"@+id/text\" android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:singleLine=\"false\"
android:text=\" \"
android:textStyle=\"italic\"
/>
<Button
android:text=\"auto book\"
android:id=\"@+id/autobook\"
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:layout_below=\"@id/text\"/>
<Button
android:text=\"cancel\"
android:id=\"@+id/cancel\"
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:layout_below=\"@id/text\"
android:layout_toRightOf=\"@id/autobook\"/>
</RelativeLayout>
<LinearLayout
android:orientation=\"vertical\"
android:layout_width=\"fill_parent\"
android:layout_height=\"fill_parent\"
android:layout_weight=\"1\">
<TextView android:id=\"@+id/toptext\" android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:singleLine=\"true\"
android:text=\" \" />
<TextView android:id=\"@+id/bottomtext\" android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:singleLine=\"true\" />
<TextView android:id=\"@+id/bottomtext1\" android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:singleLine=\"true\"
android:text=\" \" />
<TextView android:id=\"@+id/bottomtext2\" android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:singleLine=\"true\" />
</LinearLayout>
</LinearLayout>
解决方法
您可以通过textview设置标题。它仍将具有与列表视图相同的格式，但是列表视图中的第一项将是您的文本视图
,您的代码正在寻找R.id.text1
TextView tv = (TextView)findViewById(R.id.text1);
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