Iam尝试使用复选框实现联系人并选择多个联系人并保存它们。下面是我的代码
public class ProfileAdapter extends ArrayAdapter<Profile>{
private String TAG="ContactArrayAdapter";
private int renderer;
ArrayList<Profile> myElements;
HashMap<String, Integer> alphaIndexer;
String[] sections;
protected List<Profile> listCont;
private Activity activity;
private String profileType;
// boolean array for storing
//the state of each CheckBox
boolean[] checkBoxState;
ViewHolder viewHolder;
public ProfileAdapter(Activity activity, int textViewResourceId, List<Profile> listCont,int renderer, String profileType) {
super(activity, textViewResourceId, listCont);
this.renderer = renderer;
this.listCont = listCont;
this.activity = activity;
this.profileType=profileType;
checkBoxState=new boolean[listCont.size()];
}
private class ViewHolder
{
ImageView photo;
TextView text,textContNo, textEmailId;
CheckBox checkBox;
}
@TargetApi(9)
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater inflater = (LayoutInflater) (getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE));
view = inflater.inflate(renderer, null);
viewHolder=new ViewHolder();
//cache the views
viewHolder.photo=(ImageView) view.findViewById(R.id.photo);
viewHolder.text=(TextView) view.findViewById(R.id.name);
viewHolder.textContNo=(TextView) view.findViewById(R.id.contactno);
viewHolder.textEmailId=(TextView) view.findViewById(R.id.emailId);
viewHolder.checkBox=(CheckBox) view.findViewById(R.id.checkBox1);
//link the cached views to the convertview
view.setTag( viewHolder);
}
else
viewHolder=(ViewHolder) view.getTag();
viewHolder.text = (TextView) view.findViewById(R.id.name);
viewHolder.photo = (ImageView) view.findViewById(R.id.photo);
viewHolder.textContNo = (TextView) view.findViewById(R.id.contactno);
viewHolder.textEmailId = (TextView) view.findViewById(R.id.emailId);
Profile contact = listCont.get(position);
viewHolder.text.setText(contact.getName());
contact.getName();
contact.getId();
viewHolder.text.setTag(contact);
viewHolder.text.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
Profile myContact= (Profile) v.getTag();
Intent intent = new Intent();
intent.putExtra("type", profileType);
intent.putExtra("name", myContact.getName());
intent.putExtra("email", myContact.getEmail());
intent.putExtra("contactid", myContact.getId());
intent.putExtra("address", myContact.getAddress());
intent.putExtra("city", myContact.getCity());
intent.putExtra("state", myContact.getState());
intent.putExtra("countryName", myContact.getCountryName());
intent.putExtra("postalCode", myContact.getPostalCode());
intent.putExtra("website", myContact.getWebSite());
intent.putExtra("mobileNumber", myContact.getMobileNo());
intent.putExtra("phoneNumber", myContact.getLandLineNo());
Log.d(TAG, "On Activity Result Method : 1");
activity.setResult(100, intent);
activity.finish();
Constants.loadEntries.cancel(true);
return false;
}
});
if(contact.getPhoto() !=null && !contact.getPhoto().equals("")){
viewHolder.photo.setImageBitmap(contact.getPhoto());
}else{
viewHolder.photo.setImageResource(R.drawable.profile);
}
viewHolder.photo.setTag(contact);
viewHolder.photo.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
Profile myContact= (Profile)v.getTag();
Intent intent = new Intent();
intent.putExtra("type", profileType);
intent.putExtra("name", myContact.getName());
intent.putExtra("email", myContact.getEmail());
intent.putExtra("contactid", myContact.getId());
intent.putExtra("address", myContact.getAddress());
intent.putExtra("website", myContact.getWebSite());
intent.putExtra("mobileNumber", myContact.getMobileNo());
intent.putExtra("phoneNumber", myContact.getLandLineNo());
Log.d(TAG, "On Activity Result Method : 2");
activity.setResult(100, intent);
activity.finish();
Constants.loadEntries.cancel(true);
return false;
}
});
viewHolder.textContNo.setText(contact.getNumber());
viewHolder.textEmailId.setText(contact.getEmail());
view.setClickable(true);
view.setTag(contact);
view.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Profile myContact= (Profile) v.getTag();
Intent intent = new Intent();
intent.putExtra("type", profileType);
intent.putExtra("name", myContact.getName());
intent.putExtra("email", myContact.getEmail());
intent.putExtra("contactid", myContact.getId());
intent.putExtra("address", myContact.getAddress());
intent.putExtra("website", myContact.getWebSite());
intent.putExtra("mobileNumber", myContact.getMobileNo());
intent.putExtra("phoneNumber", myContact.getLandLineNo());
Log.d(TAG, "On Activity Result Method : 3");
activity.setResult(100, intent);
activity.finish();
Constants.loadEntries.cancel(true);
}
});
LinearLayout layout = (LinearLayout)view.findViewById(R.id.profilelayout);
layout.setTag(contact);
layout.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Profile myContact= (Profile) v.getTag();
Intent intent = new Intent();
intent.putExtra("type", profileType);
intent.putExtra("name", myContact.getName());
intent.putExtra("phoneNumber", myContact.getLandLineNo());
intent.putExtra("email", myContact.getEmail());
intent.putExtra("contactid", myContact.getId());
intent.putExtra("address", myContact.getAddress());
intent.putExtra("website", myContact.getWebSite());
intent.putExtra("mobileNumber", myContact.getMobileNo());
Log.d(TAG, "On Activity Result Method : 4");
activity.setResult(100, intent);
activity.finish();
Constants.loadEntries.cancel(true);
}
});
//VITAL PART!!! Set the state of the
//CheckBox using the boolean array
viewHolder.checkBox.setChecked(checkBoxState[position]);
//for managing the state of the boolean
//array according to the state of the
//CheckBox
viewHolder.checkBox.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if(((CheckBox)v).isChecked())
checkBoxState[position]=true;
else
checkBoxState[position]=false;
}
});
if (position % 2 == 0)
view.setBackgroundResource(R.drawable.listshape);
else
view.setBackgroundResource(R.drawable.favoritebody);
if (contact.getAddress() != null && contact.getAddress().length() != 0){
view.setBackgroundResource(R.drawable.hasaddress);
}
return view;
}
}
但是我在第
行获得了ArrayIndexOutOfBoundsException viewHolder.checkBox.setChecked(checkBoxState[position]);
01-02 20:14:51.926: E/AndroidRuntime(26353): java.lang.ArrayIndexOutOfBoundsException: length=0; index=0
01-02 20:14:51.926: E/AndroidRuntime(26353): at org.app.myhood.adaptor.ProfileAdapter.getView(ProfileAdapter.java:215)
01-02 20:14:51.926: E/AndroidRuntime(26353): at android.widget.AbsListView.obtainView(AbsListView.java:2468)
01-02 20:14:51.926: E/AndroidRuntime(26353): at android.widget.ListView.measureHeightOfChildren(ListView.java:1250)
01-02 20:14:51.926: E/AndroidRuntime(26353): at android.widget.ListView.onMeasure(ListView.java:1162)
01-02 20:14:51.926: E/AndroidRuntime(26353): at android.view.View.measure(View.java:15481)
01-02 20:14:51.926: E/AndroidRuntime(26353): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5107)
01-02 20:14:51.926: E/AndroidRuntime(26353): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1396)
01-02 20:14:51.926: E/AndroidRuntime(26353): at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1038)
我很震惊，感谢任何帮助。
答案 0 :(得分：0)
检查此行
checkBoxState=new boolean[listCont.size()];
稍后您的错误发生时，您正在访问不存在的索引。
在访问数组之前设置一个断点来检查元素的数量。
答案 1 :(得分：0)
您必须为checkBoxState分配值。在checkBoxState=new boolean[listCont.size()];初始化后，它需要值，如checkBoxState[i] = true;。
当您尝试在行viewHolder.checkBox.setChecked(checkBoxState[position]);上读取其值时，它会崩溃，因为没有分配任何内容。您分配任何值的唯一时间是在onClick()期间，在您设置之前不会发生。