帮助我避免不必要的关注。我禁用了焦点，但我不知道它是如何集中的。我怀疑这是由于可扩展的 listView 或 customadapter。提前致谢。
ListDoctorsActivity.java
public class ListDoctorsActivity extends ListActivity implements
OnItemClickListener, OnClickListener {
private ImageButton addUpdateButton;
private DoctorAdapter doctorAdapter;
private SimpleSectionAdapter<Doctor> sectionAdapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.at_list_doctors);
// UI References
addUpdateButton = (ImageButton) findViewById(R.id.add_update);
// Set listener
addUpdateButton.setOnClickListener(this);
getListView().setOnItemClickListener(this);
}
private class DoctorAdapter extends ArrayAdapter<Doctor> {
// Attributes
private List<Doctor> doctors;
private int expandedViewPosition = -1;
public DoctorAdapter(Context context, int textViewResourceId,
List<Doctor> doctors) {
super(context, textViewResourceId, doctors);
this.doctors = doctors;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
Holder holder = null;
if (view == null) {
view = View.inflate(ListDoctorsActivity.this,
R.layout.at_list_item_doctor, null);
holder = new Holder();
holder.doctorNameTextView = (TextView) view
.findViewById(R.id.doctor_name);
holder.specializationTextView = (TextView) view
.findViewById(R.id.specialization);
holder.editImageButton = (ImageButton) view
.findViewById(R.id.edit);
holder.expandableView = view.findViewById(R.id.expandable_view);
holder.callButton = (Button) view.findViewById(R.id.call);
holder.emailButton = (Button) view.findViewById(R.id.email);
holder.appointmentsButton = (Button) view
.findViewById(R.id.appointments);
// Set properties
holder.doctorNameTextView.setTypeface(headerTitleFont);
view.setTag(holder);
} else {
holder = (Holder) view.getTag();
}
// Set properties
final Doctor doctor = doctors.get(position);
holder.doctorNameTextView.setText(doctor.getName());
holder.specializationTextView.setText(doctor.getSpecialization());
// Show / Hide the expandable view
int visibility = position == expandedViewPosition ? View.VISIBLE
: View.GONE;
holder.expandableView.setVisibility(visibility);
// Event listeners
OnClickListener clickListener = new OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.edit:
edit(doctor);
break;
case R.id.call:
call(doctor);
break;
case R.id.email:
email(doctor);
break;
case R.id.appointments:
showAppointments(doctor);
break;
}
}
};
holder.editImageButton.setOnClickListener(clickListener);
holder.callButton.setOnClickListener(clickListener);
holder.emailButton.setOnClickListener(clickListener);
holder.appointmentsButton.setOnClickListener(clickListener);
// Disable focus
disableFocus(holder);
return view;
}
private void disableFocus(Holder holder) {
holder.editImageButton.setFocusable(false);
holder.callButton.setFocusable(false);
holder.emailButton.setFocusable(false);
holder.appointmentsButton.setFocusable(false);
}
public void toggleExpandedView(int position) {
expandedViewPosition = expandedViewPosition == position ? -1
: position;
notifyDataSetChanged();
}
}
static class Holder {
public TextView doctorNameTextView;
public TextView specializationTextView;
public ImageButton editImageButton;
public View expandableView;
public Button callButton;
public Button emailButton;
public Button appointmentsButton;
}
class DoctorSectionizer implements Sectionizer<Doctor> {
@Override
public String getSectionTitleForItem(Doctor doctor) {
return doctor.getName().toUpperCase().substring(0, 1);
}
}
@Override
protected void onStart() {
super.onStart();
// Model
List<Doctor> doctors = Sorting(OrmanHelper.getDoctors());
// Adapter
doctorAdapter = new DoctorAdapter(this, R.layout.at_list_item_doctor,
doctors);
sectionAdapter = new SimpleSectionAdapter<Doctor>(this, doctorAdapter,
R.layout.cmn_list_section, R.id.title, new DoctorSectionizer());
getListView().setAdapter(sectionAdapter);
}
@Override
public void onItemClick(AdapterView<?> parentView, View view, int position,
long id) {
// Toggle list items
int index = sectionAdapter.getIndexForPosition(position);
doctorAdapter.toggleExpandedView(index);
sectionAdapter.notifyDataSetChanged();
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.add_update:
Intent intent = new Intent(this, AddEditDoctorActivity.class);
startActivity(intent);
break;
}
}
}
at_list_item_doctor.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:focusable="false" >
<TextView
android:id="@+id/doctor_name"
style="@style/summary_text"
android:layout_marginLeft="14dp"
android:paddingTop="10dp"
android:text="@string/name" />
<TextView
android:id="@+id/specialization"
style="@style/medium_text"
android:layout_below="@+id/doctor_name"a
android:layout_alignLeft="@id/doctor_name"
android:paddingBottom="10dp"
android:textColor="@color/gray_darkest"
android:text="@string/specialization" />
<ImageButton
android:id="@+id/edit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="@id/doctor_name"
android:layout_alignBottom="@id/specialization"
android:focusable="false"
android:background="@android:color/transparent"
android:src="@drawable/edit" />
<include
android:id="@+id/expandable_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/specialization"
android:visibility="gone"
layout="@layout/at_list_item_expandable_doctor" />
</RelativeLayout>