Develop Reference

Android: Menù popup with long click?

I need to implement a menù that appears with a long click around a button, so the user can choose with option he wants to take simply sliding toward a certain direction. Is there any way to do that? I have just a setOnLongClickListener with a onLongClick method for now.
btn01.setOnLongClickListener(new View.OnLongClickListener(){
public boolean onLongClick (View view) {
Toast.makeText(getApplicationContext(),"Button 01 long clicked", Toast.LENGTH_SHORT).show();
return true;
}
});

In your Activity :
btn01.setOnLongClickListener(new View.OnLongClickListener(){
public boolean onLongClick (View view) {
registerForContextMenu(btn01);
openContextMenu(btn01);
return true;
}
});
#Override
public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo){
//Context menu
menu.setHeaderTitle("My Context Menu");
menu.add(Menu.NONE, CONTEXT_MENU_VIEW, Menu.NONE, "Add");
menu.add(Menu.NONE, CONTEXT_MENU_EDIT, Menu.NONE, "Edit");
menu.add(Menu.NONE, CONTEXT_MENU_ARCHIVE, Menu.NONE, "Delete");
}
#Override
public boolean onContextItemSelected (MenuItem item){
switch (item.getItemId()) {
case CONTEXT_MENU_VIEW: {
}
break;
case CONTEXT_MENU_EDIT: {
// Edit Action
}
}
}

Android Context Menu for any View

As far as I knew Context Menu can be registered for any view not only for ListView. Today I am trying to register context menu for an Custom ImageView. Like this:
// In onCreateView() method of activity
registerForContextMenu(mViewHolder.profileImageView);
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
switch (v.getId()) {
case R.id.profile_imageview:
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)menuInfo;
menu.add(Menu.NONE, CONTEXT_MENU_ITEM_CHANGE_PICTURE, 0, "Change Picture");
}
}
#Override
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)item.getMenuInfo();
switch (item.getItemId()) {
case CONTEXT_MENU_ITEM_CHANGE_PICTURE:
//Toast.makeText(mParentActivity, "Delete " + info.position + "th item", Toast.LENGTH_LONG).show()
Toast.makeText(this, "Go to library", Toast.LENGTH_SHORT).show();
return true;
default:
return true;
}
}
I didn't find any example of registering context menu without ListView. Would anyone give me one example or can figure out what I am missing ?

you need to write super.onCreateContextMenu(menu, v, menuInfo);
after all code like:
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
switch (v.getId()) {
case R.id.profile_imageview:
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)menuInfo;
menu.add(Menu.NONE, CONTEXT_MENU_ITEM_CHANGE_PICTURE, 0, "Change Picture");
super.onCreateContextMenu(menu, v, menuInfo);
}
}

Invoke android context menu on menu item press

Can anyone kindly guide as to how can I invoke a context menu on the press of a menu item. I googled a lot for the same, but nothing turned up.
Look forward for your valuable help.
Regards,
Rony

You are probably looking for openContextMenu(view). Call it in your Menu's onclick()
To create a context menu, override onCreateContextMenu and onContextItemSelected. Refer google for examples.

You only need to implement this function. It will work.
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo)
{
Log.e(LOGTAG, "Tao menu");
if(v == expList)
{
super.onCreateContextMenu(menu, v, menuInfo);
//AdapterContextMenuInfo aInfo = (AdapterContextMenuInfo) menuInfo;
// We know that each row in the adapter is a Map
//HashMap map = (HashMap) simpleAdpt.getItem(aInfo.position);
menu.setHeaderTitle("Options");
menu.add(1, 1, 1, "Reprint");
menu.add(1, 2, 1, "Void");
menu.getItem(0).setOnMenuItemClickListener(new OnMenuItemClickListener()
{
public boolean onMenuItemClick(MenuItem clickedItem)
{
return true;
}
});
menu.getItem(1).setOnMenuItemClickListener(new OnMenuItemClickListener()
{
public boolean onMenuItemClick(MenuItem clickedItem)
{
return true;
}
});
}
}

How to remove an array item from a context menu?

I have a ListView and would like to remove a row item when the user long clicks on selects Remove from the context menu.
#Override
public void onCreateContextMenu(ContextMenu menu, View v,ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
menu.setHeaderTitle("Selection Options");
menu.add(0, v.getId(), 0, "Remove Symbol");
}
#Override
public boolean onContextItemSelected(MenuItem item) {
if(item.getTitle()=="Remove Symbol"){
Toast.makeText(this, "Remove clicked!", Toast.LENGTH_SHORT).show();
}
else {
return false;
}
return true;
}
How can I get a reference to the row number that was clicked, so I can remove that index from my array?

In your onContextItemSelected callback, you can use this code to get the id of the item.
#Override
public boolean onContextItemSelected(MenuItem item) {
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
removeItemFromListById(info.id);
}
Source:
Creating Menus | Android Developers

identifying id of listitem for contextmenu

I have a View that extends Activity. A ListView will display a number of listitems. When the user long clicks I would like to present them with a contextmenu allowing them to select edit, delete etc... and then identify the listitem that was selected as the item to perform the action on.
In onCreate I have:
listView.setAdapter(adapter);
listView.setOnItemClickListener(onListClick);
listView.setOnItemLongClickListener(onListLongClick);
registerForContextMenu(listView);
I have a method onCreateContextMenu
#Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
menu.setHeaderTitle("Context Menu");
menu.add(0, v.getId(), 0, "Edit");
menu.add(0, v.getId(), 0, "Delete");
}
and also onContextItemSelected
#Override
public boolean onContextItemSelected(MenuItem item) {
if (item.getTitle() == "Edit") {
// edit action
} else if (item.getTitle() == "Delete") {
// delete action
} else {
return false;
}
return true;
}
I am not sure where to go from here to get the correct row/listitem.

You can use AdapterContextMenuInfo please refer Link-1 from the code you provided,
public boolean onContextItemSelected(MenuItem item) {
if (item.getTitle() == "Edit") {
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
editInfo(info.position);
} else if (item.getTitle() == "Delete") {
// TODO Delete action
} else {
return false;
}
return true;
}