第一个问题是点击时菜单项action_edit和action_delete没有响应。
其次，当您看到方法insertPostion(String name)被称为PageViewAdapter1构造函数时，该方法不执行或不执行应该执行的操作。请问问题是两个但有点属于同一个活动。当没有添加mViewPager时，菜单会表现并响应，但是当添加视图寻呼机时，它们都不会响应。
public class AddEdit extends AppCompatActivity{
private ViewPager mViewPager;
private PageViewAdapter1 slider;
private List informatn = new ArrayList<>();
private int current;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_edit);
Toolbar tool=(Toolbar) findViewById(R.id.toolbar1);
setSupportActionBar(tool);
Log.d("m","addedit on create instantiated");
mViewPager=(ViewPager) findViewById(R.id.pager);
slider=new PageViewAdapter1(this);
if( !slider.equals(null))
Log.d("m","slider NOT null"+current);
mViewPager.setAdapter(slider);
Log.d("m","current inside oncreate"+current);
mViewPager.setCurrentItem(current);
if(mViewPager.isShown())
Log.d("m","viewpager is shown");
// load the contact
// getSupportLoaderManager().initLoader(CONTACT_LOADER, null, this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater findMenuItems = getMenuInflater();
findMenuItems.inflate(R.menu.fragment_details_menu, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_delete:
Toast.makeText(AddEdit.this,"delete ",Toast.LENGTH_LONG).show();
break;
case R.id.action_edit:
finish();
break;
}
return super.onOptionsItemSelected(item);
}
public class PageViewAdapter1 extends PagerAdapter {
private Context mcontext;
public String mname=getIntent().getStringExtra("contact");
List informatn = new ArrayList<>();
private SQLiteDatabase mDatabase;
public PageViewAdapter1(Context context) {
this.mcontext = context;
Log.d("m","adapter called");
Log.d("m","name"+" "+mname);
informatn=getInfos();
Collections.sort(informatn,new MyCompName());
insertPostion(mname);
}
@Override
public int getCount() {
return informatn.size();
}
@Override
public boolean isViewFromObject(View view, Object object) {
return (view==(View) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
LayoutInflater mInflater=(LayoutInflater) container.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item_view=mInflater.inflate(R.layout.detail,container,false);
try
{
Log.d("m","instantiateItem");
TextView nameTextView; // displays contact's name
TextView phoneTextView; // displays contact's phone
TextView emailTextView; // displays contact's email
TextView streetTextView; // displays contact's street
TextView cityTextView; // displays contact's city
TextView stateTextView; // displays contact's state
TextView zipTextView; // displays contact's zip
// get the EditTexts
nameTextView = (TextView) item_view.findViewById(R.id.nameTextView1);
phoneTextView = (TextView) item_view.findViewById(R.id.phoneTextView1);
emailTextView = (TextView) item_view.findViewById(R.id.emailTextView1);
streetTextView = (TextView) item_view.findViewById(R.id.streetTextView1);
cityTextView = (TextView) item_view.findViewById(R.id.cityTextView1);
stateTextView = (TextView) item_view.findViewById(R.id.stateTextView1);
zipTextView = (TextView) item_view.findViewById(R.id.zipTextView1);
nameTextView.setText(informatn.get(position).name);
phoneTextView.setText(informatn.get(position).phone);
streetTextView.setText(informatn.get(position).street);
emailTextView.setText(informatn.get(position).eamil);
cityTextView.setText(informatn.get(position).City);
stateTextView.setText(informatn.get(position).state);
zipTextView.setText(informatn.get(position).zip);
container.addView(item_view);
}
catch(Exception e)
{
e.printStackTrace();
}
return item_view;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((GridLayout)object);
}
private ACursorWrapper queryInfo(String whereClause, String[] whereArgs){
mDatabase = new AddressBookDatabaseHelper(mcontext)
.getWritableDatabase();
Cursor cursor = mDatabase.query(
DatabaseDescription.Contact.TABLE_NAME,
null, // columns - null selects all columns
whereClause,
whereArgs,
null, // groupBy
null, // having
null // orderBy
);
return new ACursorWrapper(cursor);
}
public List getInfos() {
List information = new ArrayList<>();
ACursorWrapper cursor = queryInfo(null, null);
try {
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
information.add(cursor.getInfo());
cursor.moveToNext();
}
} finally {
cursor.close();
}
return information;
}
public Info getInfo(int id) {
ACursorWrapper cursor = queryInfo(
DatabaseDescription.Contact._ID + " = ?",
new String[] { id+"" }
);
try {
if (cursor.getCount() == 0) {
return null;
}
cursor.moveToFirst();
return cursor.getInfo();
} finally {
cursor.close();
}
}
}
public void insertPostion(String name){
for(int i=0;i<informatn.size();i++){
informatn.get(i).current=i;
Log.d("m","indexes"+i);
}
for(int i=0;i<informatn.size();i++){
Log.d("m","current"+i);
if(informatn.get(i).name.equals(name)) {
current = i;
break;
}
}
}
class MyCompName implements Comparator { // eclipse ask for casting object
public int compare(Object emp1, Object emp2) {
String emp1Name = ((Info) emp1).name;
String emp2Name = ((Info) emp2).name;
return emp1Name.compareTo(emp2Name);
//return (int)((emp2Name*100) - (emp1Name*100.0));
}
}
}