I am creating am android application which has 4 different activities all having a common menu. To show menu in all activities generally I need to add this code in every files.
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
Is there anyway that I can add this code in one single file & include to all activities?
Thanks in advance.
Create one Main Activity write your menu code in that activity and then extend other activities with Main Activity..
public MainActivity extends Activity
{
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
return false;
}
}
And some TempActivity
public TempActivity extend MainActivity
{
/......
}
abstract class MenuHavingActivity extends Activity {
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
}
and then have your other activities extend MenuHavingActivity
edit: yeah, what user370305 said
Related
I would like to rename menu on click of an item. I tried the following but it didn't change.
I tried item.setTitle("LandScape"); or item.setTitle("Portrait");
Declare the menu:
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return true;
}
Do something on click on the menu item:
#Override
public boolean onOptionsItemSelected(MenuItem item)
{
boolean result = true;
switch(item.getItemId())
{
case R.id.oscillation_mode:
{
if(getScreenOrientation() == 1)
{
Log.e("Orientation","ABC"+getScreenOrientation());
item.setTitle("LandScape");
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
else
{
item.setTitle("Portrait");
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
break;
}
The text is the same. The default it is Portrait.
when you call setRequestedOrientation() your Activity is destroyed and recreated, so any changes you make to in memory objects will be dropped. You should make these changes when the menu is shown instead
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
MenuItem oscillation = menu.findItem(R.id.oscillation_mode);
if (getScreenOrientation() == 1){
item.setTitle("LandScape");
}else{
item.setTitle("Portrait");
}
return true;
}
I have a listview and call detail activity when the item is selected.
My onCreateOptionsMenu has error on displaying the menu at Action Bar.
public boolean onCreateOptionsMenu(Menu menu) {
new MenuInflater(getActivity()).inflate(R.menu.detail_view_menu, menu);
return (super.onCreateOptionsMenu(menu));
}
The error is The method onCreateOptionsMenu(Menu, MenuInflater) in the type Fragment is not applicable for the arguments (Menu). Error happened at return line.
I implement listview and detail activity using fragmentTransaction.
Thanks
Your onCreateOptionsMenu(Menu menu) just needs to be in the activity that hosts the fragment, not in the fragment itself.
You could also consider extending a BaseActivity and including it in there just once.
public class BaseActivity extends Activity {
public boolean onCreateOptionsMenu(Menu menu) {
new MenuInflater(getActivity()).inflate(R.menu.detail_view_menu, menu);
return (super.onCreateOptionsMenu(menu));
}
}
public class ListActivity extends BaseActivity {
// ...
}
public class DetailActivity extends BaseActivity {
// ...
}
Try it like this but put it in your main Activity class:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.detail_view_menu, menu);
return true;
}
OR if you want your Fragment to add items to the ActionBar you have to use a slightly different construct:
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.detail_view_menu, menu);
}
You have an additional parameter that you have to add(MenuInflater). Also, in a Fragment the onCreateOptionsMenu doesn't return a boolean value.
Now that you have your inflater you need to call setHasOptionsMenu(true) in your Fragment's onCreate() method. Otherwise your items will not be displayed in the ActionBar.
Your Fragment code, handling the menu inflation, should now look like this:
public class DetailFragment extends Fragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.detail_view_menu, menu);
}
}
package com.guess.phone;
import android.app.Activity;
public class Menu extends Activity {
// Setting Up the MenuInflater
public boolean onCreateOptionsMenu(Menu Menu) {
super.onCreateOptionsMenu((android.view.Menu) Menu);
MenuInflater awesome = getMenuInflater();
awesome.inflate(R.menu.main_menu,(android.view.Menu) Menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
case R.id.menuSweet:
startActivity(new Intent("com.guess.phone.SWEET"));
return true;
case R.id.menuToast:
return true;
}
return false;
}
}
Use below OnCreateOptionsMenu instead
public boolean OnCreateOptionsMenu(Menu menu){
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_menu, menu);
return super.onCreateOptionsMenu(menu);
}
Is that possible to have different menus for each tab of TabHost?
Yes, you can in onCreateOptionsMenu depending on the tab inflate a different menu
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
int tab = getTabHost().getCurrentTab()
if (tab==1)
inflater.inflate(R.menu.main_menu, menu);
else
inflater.inflate(R.menu.other_menu, menu);
return true;
}
You need to provide different versions of menu.xml files within res/menu for this.
If you're using fragments you can put setHasOptionsMenu(true); inside onCreate method of your fragment and override onCreateOptionsMenu.
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.fragment_xxx, menu);
}
I created a file option_menu.xml: in the directory /res/menu/
I created a file menu.java that contains this code:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.option_menu, menu);
return true;
}
where I can put this code for my menu works?(In menu.java?
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.nelp:
help();
return true;
case R.id.quit:
quit();
default:
return super.onOptionsItemSelected(item);
}
}
My application contains 4 java files
I Hope the menu to be accessible at any Activity.
Thank you in advance
If you want the same code to be run in several activities, you can create a base class that derives from Activity and then derive your own Activity classes from your new base class. This code would go in that class.
public class ActivityBase extends Activity {
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.option_menu, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.nelp:
help();
return true;
case R.id.quit:
quit();
default:
return super.onOptionsItemSelected(item);
}
}
}
Your activities derive from ActivityBase:
public class MyActivity extends ActivityBase { ...