setOnItemClickListener 没有响应我的基本适配器。此尝试试图在 baseadapter 的 getView 中处理侦听器。
我的适配器：
import java.io.Serializable;
import java.util.ArrayList;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
public class ModuleAdapter extends BaseAdapter implements Serializable, OnClickListener{
private static final String TAG = "myAdapter";
private static final long serialVersionUID = 1L;
private LayoutInflater modInflater;
static class ViewHolder{
TextView moduleCode;
TextView firstLetter;
TextView day;
TextView startTime;
TextView location;
}
// insert holding arrays
private ArrayList<String> moduleCodeItems = new ArrayList<String>();
private ArrayList<String> module_name = new ArrayList<String>();
private ArrayList<String> moduleType = new ArrayList<String>();
private ArrayList<String> weekDay = new ArrayList<String>();
private ArrayList<String> classTime = new ArrayList<String>();
private ArrayList<String> classLocation = new ArrayList<String>();
private ArrayList<String> commentsField = new ArrayList<String>();
// setter for the array lists
public void setModules(String modCode, String modName, String modT, String weekD, String classT, String classL, String commentsF){
moduleCodeItems.add(modCode);
module_name.add(modName);
moduleType.add(modT);
weekDay.add(weekD);
classTime.add(classT);
classLocation.add(classL);
commentsField.add(commentsF);
// Log.v(TAG, moduleCodeItems.get(0));
}
// getters for the module array list items
public ArrayList<String> getModuleCodeItems(){
return moduleCodeItems;
}
public ArrayList<String> getModuleNames(){
return module_name;
}
public ArrayList<String> getModuleTypes(){
return moduleType;
}
public ArrayList<String> getWeekDays(){
return weekDay;
}
public ArrayList<String> getClassTimes(){
return classTime;
}
public ArrayList<String> getClassLocations(){
return classLocation;
}
public ArrayList<String> getComments(){
return commentsField;
}
// end of getter methods
// setter for module array list items
@SuppressWarnings("unchecked")
public void setModuleCodeItemsArrayList(Object modCodeArray){
moduleCodeItems = (ArrayList<String>) modCodeArray;
}
@SuppressWarnings("unchecked")
public void setModuleNameArrayList(Object nameArray){
module_name = (ArrayList<String>) nameArray;
}
@SuppressWarnings("unchecked")
public void setModuleTypeArrayList(Object typeArray){
moduleType = (ArrayList<String>) typeArray;
}
@SuppressWarnings("unchecked")
public void setWeekDayArrayList(Object weekArray){
weekDay = (ArrayList<String>) weekArray;
}
@SuppressWarnings("unchecked")
public void setClassTimeArrayList(Object classArray){
classTime = (ArrayList<String>) classArray;
}
@SuppressWarnings("unchecked")
public void setClassLocationArrayList(Object locationArray){
classLocation = (ArrayList<String>) locationArray;
}
@SuppressWarnings("unchecked")
public void setCommentsFieldArrayList(Object commentsArray){
commentsField = (ArrayList<String>) commentsArray;
}
// constructor
public ModuleAdapter(Context context){
modInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
// determine how many objects there are for displaying
return moduleCodeItems.size();
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if(convertView == null){
convertView = modInflater.inflate(R.layout.row, null);
holder = new ViewHolder();
holder.moduleCode = (TextView)convertView.findViewById(R.id.module_code_numberRow);
holder.firstLetter = (TextView)convertView.findViewById(R.id.firstLetterRow);
holder.day = (TextView)convertView.findViewById(R.id.dayRow);
holder.startTime = (TextView)convertView.findViewById(R.id.startTimeRow);
holder.location = (TextView)convertView.findViewById(R.id.locationRow);
convertView.setTag(holder);
}else{
holder = (ViewHolder)convertView.getTag();
}
holder.moduleCode.setText(moduleCodeItems.get(position));
holder.firstLetter.setText(moduleType.get(position));
holder.day.setText(weekDay.get(position));
holder.startTime.setText(classTime.get(position));
holder.location.setText(classLocation.get(position));
// Log.v(TAG,(moduleCodeItems.get(position)));
holder.moduleCode.setOnClickListener(new View.OnClickListener() {
public void onClick(View v){
Log.v(TAG, "clicked");
}
});
return convertView;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
}
// end of module adapter
我的活动设置了适配器：
public class MainActivity extends Activity {
private static final String TAG = "someTag";
// boolean to check if data has been added to the string arrays
boolean modulesHaveBeenSet;
// boolean to check to see if the correct module code has been entered for deletion
boolean newOutputs;
public String MODULES_FILE = "modules_file";
Context context = this;
File file;
// identifiers for strings to be passed to the next activity via intents
public final static String TIME_MESSAGE = "timeMessageForNextActivity";
public final static String DAY_MESSAGE = "dayMessageForNextActivity";
private static final int MENU_ADD = Menu.FIRST+1;
private static final int MENU_REMOVE = Menu.FIRST+2;
ModuleAdapter adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ListView lv = (ListView)findViewById(R.id.list);
adapter = new ModuleAdapter(this);
lv.setAdapter(adapter);
file = new File(context.getFilesDir(), MODULES_FILE);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
super.onCreateOptionsMenu(menu);
menu.add(Menu.NONE,MENU_ADD,Menu.NONE,"add module");
menu.add(Menu.NONE,MENU_REMOVE,Menu.NONE,"delete module");
return true;
}
// forces menu to display when the application launches
// taken from stack overflow
@Override
public void onWindowFocusChanged(boolean hasFocusFlag) {
super.onWindowFocusChanged(hasFocusFlag);
if (hasFocusFlag) {
openOptionsMenu();
}
}
// end of on window focus
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_ADD:
add();
break;
case MENU_REMOVE:
remove();
default:
break;
}
return super.onOptionsItemSelected(item);
}
// end of on options selected
private void add(){
final View addView = getLayoutInflater().inflate(R.layout.add, null);
new AlertDialog.Builder(this)
.setTitle("Enter Module Information")
.setView(addView)
.setPositiveButton("OK", new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int whichButton){
// add whatever is in the text fields to the array lists
EditText moduleEdit = (EditText)addView.findViewById(R.id.module_edit);
EditText nameEdit = (EditText)addView.findViewById(R.id.module_name_edit);
EditText typeEdit = (EditText)addView.findViewById(R.id.module_type_edit);
EditText dayEdit = (EditText)addView.findViewById(R.id.week_day_edit);
EditText timeEdit =(EditText)addView.findViewById(R.id.time_edit);
EditText locationEdit = (EditText)addView.findViewById(R.id.location_edit);
EditText commentsEdit = (EditText)addView.findViewById(R.id.comments_edit);
try {
adapter.setModules(moduleEdit.getText().toString(),
nameEdit.getText().toString(),
typeEdit.getText().toString().substring(0, 1).toUpperCase(),
dayEdit.getText().toString().substring(0, 2),
timeEdit.getText().toString(),
locationEdit.getText().toString(),
commentsEdit.getText().toString());
modulesHaveBeenSet = true;
// tell the adapter to refresh itself
adapter.notifyDataSetChanged();
} catch (StringIndexOutOfBoundsException e) {
// recall add method if all edit fields not used
add();
}
// end of try catch
}
}).setNegativeButton("Cancel", null).show();
}
// end of add
public void remove(){
final View removeView = getLayoutInflater().inflate(R.layout.remove, null);
new AlertDialog.Builder(this)
.setTitle("Enter Module to Delete")
.setView(removeView)
.setPositiveButton("OK", new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int whichButton){
// get whatever module code was entered in edit text
EditText removeModCode = (EditText)removeView.findViewById(R.id.remove_mod_code_edit);
String rm = removeModCode.getText().toString();
int lengtOfModCodeArrayList = adapter.getModuleCodeItems().size();
Log.v(TAG,"" + lengtOfModCodeArrayList);
for(int i =0; i< lengtOfModCodeArrayList; i++){
if(adapter.getModuleCodeItems().get(i).equals(rm)){
adapter.getModuleCodeItems().remove(i);
adapter.getModuleNames().remove(i);
adapter.getModuleTypes().remove(i);
adapter.getWeekDays().remove(i);
adapter.getClassTimes().remove(i);
adapter.getClassLocations().remove(i);
adapter.getComments().remove(i);
Log.v(TAG,"" + lengtOfModCodeArrayList);
newOutputs = true;
}
// if
}
// for
// delete the file and recreate
boolean deleted = context.deleteFile(MODULES_FILE);
if(deleted){
Log.v(TAG, "file deleted");
}
file = new File(context.getFilesDir(), MODULES_FILE);
// update file
try {
ObjectOutputStream moduleOutputs = new ObjectOutputStream(new FileOutputStream(file));
moduleOutputs.writeObject(adapter.getModuleCodeItems());
moduleOutputs.writeObject(adapter.getModuleNames());
moduleOutputs.writeObject(adapter.getModuleTypes());
moduleOutputs.writeObject(adapter.getWeekDays());
moduleOutputs.writeObject(adapter.getClassTimes());
moduleOutputs.writeObject(adapter.getClassLocations());
moduleOutputs.writeObject(adapter.getComments());
moduleOutputs.flush();
moduleOutputs.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// update adapter
adapter.notifyDataSetChanged();
// raise toast message confirming module removal
if(newOutputs){
Context apContext = getApplicationContext();
CharSequence text = "module " + rm + " deleted";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(apContext, text, duration);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();}
else{
Context apContext = getApplicationContext();
CharSequence text = "module does not exist";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(apContext, text, duration);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
}
}
}).setNegativeButton("Cancel", null).show();
}
// end of remove
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
Log.v(TAG, "on pause called");
if(modulesHaveBeenSet){
try {
ObjectOutputStream moduleOutputs = new ObjectOutputStream(new FileOutputStream(file));
moduleOutputs.writeObject(adapter.getModuleCodeItems());
moduleOutputs.writeObject(adapter.getModuleNames());
moduleOutputs.writeObject(adapter.getModuleTypes());
moduleOutputs.writeObject(adapter.getWeekDays());
moduleOutputs.writeObject(adapter.getClassTimes());
moduleOutputs.writeObject(adapter.getClassLocations());
moduleOutputs.writeObject(adapter.getComments());
moduleOutputs.flush();
moduleOutputs.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// end if
}
// end on pause
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
Log.v(TAG, "on resume called");
try {
ObjectInputStream moduleInputs = new ObjectInputStream(new FileInputStream(file));
adapter.setModuleCodeItemsArrayList(moduleInputs.readObject());
adapter.setModuleNameArrayList(moduleInputs.readObject());
adapter.setModuleTypeArrayList(moduleInputs.readObject());
adapter.setWeekDayArrayList(moduleInputs.readObject());
adapter.setClassTimeArrayList(moduleInputs.readObject());
adapter.setClassLocationArrayList(moduleInputs.readObject());
adapter.setCommentsFieldArrayList(moduleInputs.readObject());
adapter.notifyDataSetChanged();
} catch (StreamCorruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}