如何使用扩展baseadapter中的click事件按钮..我尝试了很多但没有用..在我的项目中有自定义列表视图，它包含文本，按钮（btnlist），快速滚动索引。当我onclick按钮（btnlist）它不是gng到其他活动，没有错误也显示，没有吐司..
Plz帮我举个例子。提前谢谢你。
快速参考：getview ---＆gt; holder.btnList.setOnClickListener
EfficientAdapter.java
public class EfficientAdapter extends BaseAdapter implements SectionIndexer, OnClickListener {
IndexableListView mListView;
private String mSections = "#ABCDEFGHIJKLMNOPQRSTUVWXYZ";
ArrayList<Patient> patientListArray;
private Intent intent;
private Patient patient;
private LayoutInflater mInflater;
private Context context;
private int positions;
ViewHolder holder;
public EfficientAdapter(Context context) {
mInflater = LayoutInflater.from(context);
this.context = context;
String patientListJson = CountriesList.jsonData;
JSONObject jssson;
try {
jssson = new JSONObject(patientListJson);
patientListJson = jssson.getString("PostPatientDetailResult");
} catch (JSONException e) {
e.printStackTrace();
}
Gson gson = new Gson();
JsonParser parser = new JsonParser();
JsonArray Jarray = parser.parse(patientListJson).getAsJsonArray();
patientListArray = new ArrayList<Patient>();
for (JsonElement obj : Jarray) {
Patient patientList = gson.fromJson(obj, Patient.class);
patientListArray.add(patientList);
// Log.i("patientList", patientListJson);
}
}
public int getCount() {
return patientListArray.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(final int position, View convertView, ViewGroup parent) {
this.positions = position;
View rowView = convertView;
if (rowView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
rowView = inflater.inflate(R.layout.homemplebrowview, parent, false);
holder = new ViewHolder();
holder.text1 = (TextView) rowView.findViewById(R.id.name);
holder.text2 = (TextView) rowView.findViewById(R.id.mrn);
holder.text3 = (TextView) rowView.findViewById(R.id.date);
holder.text4 = (TextView) rowView.findViewById(R.id.age);
holder.text5 = (TextView) rowView.findViewById(R.id.gender);
holder.text6 = (TextView) rowView.findViewById(R.id.wardno);
holder.text7 = (TextView) rowView.findViewById(R.id.roomno);
holder.text8 = (TextView) rowView.findViewById(R.id.bedno);
holder.btnList = (Button) rowView.findViewById(R.id.listbutton);
/*Button editButton = (Button) rowView.findViewById(R.id.listbutton) ;
editButton.setTag(position);
editButton.setClickable(true);
editButton.setOnClickListener(EfficientAdapter.this);
rowView.setClickable(true);*/
rowView.setTag(holder);
} else {
holder = (ViewHolder) rowView.getTag();
}
holder.text1.setText(Util.formatN2H(patientListArray.get(position)
.getName()));
holder.text2.setText(patientListArray.get(position).getMrnNumber());
holder.text3.setText(Util.formatN2H(patientListArray.get(position)
.getRoom()));
holder.text4.setText(Util.formatN2H(patientListArray.get(position)
.getAge()));
holder.text5.setText(Util.formatN2H(patientListArray.get(position)
.getGender()));
holder.text6.setText(Util.formatN2H(patientListArray.get(position)
.getWard()));
holder.text7.setText(Util.formatN2H(patientListArray.get(position)
.getRoom()));
holder.text8.setText(Util.formatN2H(patientListArray.get(position)
.getBed()));
holder.btnList.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Toast.makeText(context, "STAT", Toast.LENGTH_SHORT).show();
Intent next = new Intent(context, SeviceDetails.class);
Log.i("patient", " next "+ position + " onclickposition " + patientListArray.get(position).getMrnNumber());
patient = getPatientDetailsByMrn(patientListArray, position);
Log.i("DDDD ", patient.getMrnNumber());
next.putExtra("patient", patient);
next.putExtra("position", position);
System.out.println("patient"+ patient);
context.startActivity(next);
}
});
return rowView;
}
static class ViewHolder {
public Button btnList;
public TextView text8;
public TextView text7;
public TextView text6;
public TextView text5;
public TextView text4;
public TextView text1;
public TextView text2;
public TextView text3;
}
@Override
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
}
public int getPositionForSection(int section) {
sortMyData();
Log.i("getPositionForSection", "section" + section);
// If there is no item for current section, previous section will be
// selected
for (int i = section; i >= 0; i--) {
for (int j = 0; j < getCount(); j++) {
if (i == 0) {
Log.i("getPositionForSection- i", "section" + i);
// For numeric section
for (int k = 0; k <= 9; k++) {
if (StringMatcher.match(
String.valueOf(patientListArray.get(j)
.getName().charAt(0)),
String.valueOf(k)))
Log.i("getPositionForSection- j", "section" + j);
return j;
}
} else {
if (StringMatcher.match(
String.valueOf(patientListArray.get(j).getName()
.charAt(0)),
String.valueOf(mSections.charAt(i))))
return j;
}
}
}
return 0;
}
public int getSectionForPosition(int position) {
return 0;
}
public Object[] getSections() {
String[] sections = new String[mSections.length()];
for (int i = 0; i < mSections.length(); i++)
sections[i] = String.valueOf(mSections.charAt(i));
return sections;
}
/**
* sorting the patientListArray data
*/
public void sortMyData() {
// sorting the patientListArray data
Collections.sort(patientListArray, new Comparator<Object>() {
@Override
public int compare(Object k1, Object k2) {
Patient p1 = (Patient) k1;
Patient p2 = (Patient) k2;
return p1.getName().compareToIgnoreCase(p2.getName());
}
});
}
}
.XML
<Button
android:id="@+id/listbutton"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="@+id/name"
android:layout_marginRight="43dp"
android:focusable="false"
android:text="Episode"
android:textColor="#666666" />
默认列表视图
<ListView
android:id="@+id/homelistView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:dividerHeight="0dip" />
答案 0 :(得分：6)
您应该使用适配器使用项目填充列表。然后在您的Activity或Fragment中，您应该实现onListItemClick事件来处理列表项的单击。
编辑：我在下面发布了一个示例，我正在使用ListFragment - 这是我现在可用的代码段，我可以在以后发布特定于ListView的内容：
public class RecipiesActivity extends FragmentActivity {
private RecipiesSummaryListAdapter m_listAdapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/* here you need to set the adapter of the listview
and do other things for your applicaiton (i.e. populate the
data in your adapter. In your case, since you are calling a
WS you want to do that in a different task */
ListFragment lf =
(ListFragment) fm.findFragmentById(R.id.my_list_fragment);
lf.setListAdapter(m_listAdapter);
}
然后在ListFragment：
/* imports and other things go here then... */
public class MyListFragment extends ListFragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return (View) inflater.inflate(R.layout.myListViewXml,
container, false);
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
// put your handler here
}
}
有关ListFragment的详细信息，请参阅here。
我认为这是一个非常好的例子（尽管通过扩展ArrayAdapter代替BaseAdapter而已列入this stackoverflow answer。
有一点需要记住：
android:focusable="false" - 就像您在XML中一样）。onItemClick事件（摘自上面的链接）：代码：
listview.setOnItemClickListener(new OnItemClickListener() {
//@Override
public void onItemClick(AdapterView arg0, View view,
int position, long id) {
// user clicked a list item, make it "selected"
selectedAdapter.setSelectedPosition(position);
//Do your stuff here
}
最后，请注意一点。此解决方案意味着您单击列表行并触发事件。
我认为，如果您希望用户点击按钮并触发按钮事件，那么您需要在扩充ListView XML之后立即设置调用listview.setItemsCanFocus(true)并确保按钮在XML中是focusable。聆听onClick事件应该适用。
GoogleIO WorldView ListView演示文稿的幻灯片25中描述了这一点（您可以获取here和video is here）
希望这有帮助
答案 1 :(得分：3)
尝试以下按钮：
android:focusable="false"
答案 2 :(得分：3)
将holder.btnList.setOnClickListener写入if (rowView == null)条件，然后重试。
答案 3 :(得分：2)
在getView（）方法中使用以下代码：
Button status = (Button) rowView.findViewById(R.id.image1);
status.setBackgroundResource(R.drawable.add_account);
status.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// DO your stuff
}
});