I'm implementing an action bar for my app which has 2 menu buttons : Add and Settings. In Designer view the 2 buttons still apprear like normal. However when I run the app 2 buttons does not show up at all. Please help
Below are my code:
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" tools:context=".MainActivity">
<ListView
android:id="#android:id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true" />
</RelativeLayout>
MainActivity.Java
package com.example.sunny.mynote;
import android.app.ActionBar;
import android.app.ListActivity;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.Adapter;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.example.sunny.mynote.com.example.sunny.mynote.data.NoteDataSource;
import com.example.sunny.mynote.com.example.sunny.mynote.data.NoteItem;
import java.util.List;
public class MainActivity extends ListActivity {
public static final int EDITOR_ACRIVITY_REQUEST = 1001;
public static final int SETTINGS_REQUEST = 1003;
private static final int MENU_DELETE_ID = 1002;
private int currentNoteId;
private NoteDataSource datasource;
List<NoteItem> notesList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
registerForContextMenu(getListView());
datasource = new NoteDataSource(this);
refreshDisplay();
}
private void refreshDisplay() {
notesList = datasource.findAll();
ArrayAdapter<NoteItem> adapter =
new ArrayAdapter<NoteItem>(this, R.layout.list_item_layout, notesList);
setListAdapter(adapter);
}
//Add the Actions to the Action Bar
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu items for use in the action bar
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_main, menu);
return super.onCreateOptionsMenu(menu);
}
//Respond to Action Buttons
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle presses on the action bar items
switch (item.getItemId()) {
case R.id.action_create:
createNote();
return true;
case R.id.action_settings:
Settings();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void createNote()
{
NoteItem note = NoteItem.getNew();
Intent intent = new Intent(this, NoteEditorActivity.class);
intent.putExtra("key", note.getKey());
intent.putExtra("text", note.getText());
startActivityForResult(intent, EDITOR_ACRIVITY_REQUEST);
}
private void Settings()
{
Intent intent2 = new Intent(this, Settings.class);
startActivityForResult(intent2, SETTINGS_REQUEST);
}
#Override
protected void onListItemClick(ListView l, View v, int position, long id) {
NoteItem note = notesList.get(position);
Intent intent = new Intent(this, NoteEditorActivity.class);
intent.putExtra("key", note.getKey());
intent.putExtra("text", note.getText());
startActivityForResult(intent, EDITOR_ACRIVITY_REQUEST);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == EDITOR_ACRIVITY_REQUEST && resultCode == RESULT_OK)
{
overridePendingTransition(R.anim.fadein, R.anim.fadeout);
NoteItem note = new NoteItem();
note.setKey(data.getStringExtra("key"));
note.setText(data.getStringExtra("text"));
datasource.update(note);
refreshDisplay();
}
}
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
currentNoteId = (int)info.id;
menu.add(0, MENU_DELETE_ID, 0, "Delete");
}
#Override
public boolean onContextItemSelected(MenuItem item) {
if (item.getItemId() == MENU_DELETE_ID)
{
NoteItem note = notesList.get(currentNoteId);
datasource.remove(note);
refreshDisplay();
}
return super.onContextItemSelected(item);
}
}
menu.xml
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
<item android:id="#+id/action_create" android:title="#string/action_create"
android:icon="#drawable/create_note"
android:orderInCategory="100" app:showAsAction="ifRoom" />
<item android:id="#+id/action_settings" android:title="#string/action_settings"
android:orderInCategory="100" app:showAsAction="ifRoom" android:icon="#drawable/ic_settings"/>
</menu>
Use in Your Java File after setContentView
getSupportActionBar().show();
I would like to see you menu xml file for this Activity.
Please try this one, change icon and id.
Notice that there is android:showAsAction="always" NOT app:showAsAction="always":
<item android:id="#+id/Add_New_Note"
android:icon="#drawable/ic_action_new"
android:title="Add new note"
android:showAsAction="always"/>
I had the same problem, hope it will help.
Include this code in your MainActivity
public class MainActivity extends ActionBarActivity {
Inside your onCreate()
ActionBar actionBar = getSupportActionBar();
Give Add and Settings Item in res -> Menu folder.
It will display ActionBar.
Give your extends ListViewActivity in findViewById
add in menu.xml app:showAsAction="ifRoom" like this:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools" tools:context=".Main">
<item android:id="#+id/paste" android:title="Paste"
android:orderInCategory="100"
app:showAsAction="ifRoom" />
</menu>
and in main:
//Add the Actions to the Action Bar
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu items for use in the action bar
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_activity_actions, menu);
return super.onCreateOptionsMenu(menu);
}
//Respond to Action Buttons
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle presses on the action bar items
switch (item.getItemId()) {
case R.id.action_search:
openSearch();
return true;
case R.id.action_settings:
openSettings();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
see this: https://developer.android.com/training/basics/actionbar/adding-buttons.html
Related
I'm trying to create the Action Bar by following the Android Studio tutorial. I am familiar with VBA, C++, and Python, but this is the first time I've ventured into an App, which uses java, xml, etc. in one. I say that because I think I've misplaced (or misnamed) something in my code, as when I try to run this, I get the error error: duplicate class: com.example.batman.myfirstapp.MyActivity.
I don't understand how it's a duplicate, I only have one "MyActivity.java", so am thinking that I can't do more than one public class MyActivity extends ... per .java file?
Here's what I have (please let me know if I need to include other code):
MyActivity.java
package com.example.batman.myfirstapp;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.support.v7.app.*;
public class MyActivity extends ActionBarActivity{
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu items for use in the action bar
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_activity_actions, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle presses on the action bar items
switch (item.getItemId()) {
case R.id.action_search:
// openSearch();
return true;
case R.id.action_settings:
// openSettings();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
public class MyActivity extends AppCompatActivity {
public final static String EXTRA_MESSAGE = ".com.batman.myfirstapp.MESSAGE";
/**
* Called when the user clicks the Send button
*/
public void sendMessage(View view) {
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_display_message);
// getSupportActionBar().setDisplayHomeAsUpEnabled(true);
// If your minSdkVersion is 11 or higher, instead use:
getActionBar().setDisplayHomeAsUpEnabled(true);
}
}
main_activity_actions.xml
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:myfirstapp="http://schemas.android.com/apk/res-auto">
<!-- Search, should appear as action button -->
<item android:id="#+id/action_search"
android:icon="#drawable/ic_action_search"
android:title="#string/action_search"
myfirstapp:showAsAction="ifRoom" />
<!-- Settings, should always be in the overflow -->
<item android:id="#+id/action_settings"
android:title="#string/action_settings"
myfirstapp:showAsAction="never" />
</menu>
Again, I'm not sure what other files (strings.xml, DisplayMessageActivity.java, etc.) would be helpful to debug the above, so let me know what else I can include.
Thank you for any advice/help!
You're intuition is correct! You can only have one MyActivity class in your file, here's what it might look like:
public class MyActivity extends ActionBarActivity {
public final static String EXTRA_MESSAGE = ".com.batman.myfirstapp.MESSAGE";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_display_message);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_activity_actions, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_search:
return true;
case R.id.action_settings:
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void sendMessage(View view) {
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
}
Your assumption is correct. In your .java file you have two classes named MyActivity. You can only have one.
I want to add an ActionButton on the ActionBar, but it is placed on the overflow. What i'm doing wrong?
below is a code file and the main class
///--main_activity_actions.xml--///
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- Search, should appear as action buton -->
<item android:id="#+id/action_search"
android:icon="#drawable/ic_action_search"
android:title="#string/action_search"
android:showAsAction="ifRoom"/>
<!-- Settings, should always be in the overflow -->
<item android:id="#+id/action_settings"
android:title="#string/action_settings"
android:showAsAction="never" />
</menu>
//--MainActivity.java--//
package com.example.my_first;
import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
public class MainActivity extends ActionBarActivity {
static final String EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
MenuInflater inflater =getMenuInflater();
inflater.inflate(R.menu.main_activity_actions, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
switch(item.getItemId()){
case R.id.action_search:
openSearch();
return true;
case R.id.action_settings:
openSettings();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void openSettings() {
// TODO Auto-generated method stub
}
private void openSearch() {
// TODO Auto-generated method stub
}
public void sendMessage(View view){
//Do something in response to button
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
}
If you want an action to have its own icon on the ActionBar, try changing
android:showAsAction="ifRoom"
to
android:showAsAction="always"
Add this schema to your menu resource:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto" >
Then change the showAsAction attribute:
<item android:id="#+id/action_search"
android:icon="#drawable/ic_action_search"
android:title="#string/action_search"
app:showAsAction="ifRoom" />
Took me days to figure that out. Answer was here.
I am currently trying to learn android programming and have encountered a problem. When I try to complete the Action Bar tutorial it does not work. It runs, but on the Action Bar only the overflow button diplays and that contains the settings button. I have no idea why this does not work. Here is the code:
package com.example.usingui;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.os.Build;
public class MainActivity extends ActionBarActivity {
public final static String EXTRA_MESSAGE = "com.example.usingui.MESSAGE";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment())
.commit();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void sendMessage(View view) {
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
}
and res/menu/main.xml :
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:yourapp="http://schemas.android.com/apk/res-auto" >
<item android:id="#+id/action_search"
android:icon="#drawable/ic_action_search"
android:title="#string/action_search"
yourapp:showAsAction="ifRoom" />
<item android:id="#+id/action_settings"
android:title="#string/action_settings"
android:showAsAction="never" />
</menu>
I have no idea what I am doing wrong. Please help me!
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_settings:
//Do something here
return true;
case R.id.action_search:
//do something here
return true;
default:
return super.onOptionsItemSelected(item);
}
}
That is my code for my action bar
I see that in your XML for the menu, you have android:showAsAction="never" change it to always for each menu item that you want to see in the action bar so it would be this:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="#+id/action_search"
android:icon="#drawable/ic_action_search"
android:title="#string/action_search"
android:showAsAction="always" />
<item android:id="#+id/action_settings"
android:title="#string/action_settings"
android:showAsAction="always" />
</menu>
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true; ->you can handle every item of action bar and you can do any interaction in here!
}
return super.onOptionsItemSelected(item);
}
I am agree with Cybergei you should set visible of every item of action bar by writing android:showAsAction="always" and as I wrote above,you can do anything what you want by handling id of every item inside of the onOptionsItemSelected method
In my app menu icon is not displaying, For me at present text/string is displaying but i need icon/image intent of text. Also try using xml format menu calling.
Android version is ver_4
cordova_2.5.0
Image/Icon size=32*32
testapp.java
package com.example.testapp;
import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import org.apache.cordova.*;
import android.view.Menu;
import android.view.MenuItem;
public class testapp extends DroidGap {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.loadUrl("file:///android_asset/www/index.html");
}
private static final int HOME = 0;
private static final int SETTINGS = 1;
private static final int HELP = 2;
#SuppressLint("NewApi")
#Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0, HOME, 0, "Home")
.setIcon(R.drawable.icon_home)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
menu.add(0, SETTINGS, 0, "Settings")
.setIcon(R.drawable.icon_settings)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
menu.add(0, HELP, 0, "Help")
.setIcon(R.drawable.icon_help)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case HOME:
// app icon in action bar clicked; go home
Intent intent = new Intent(this, testapp.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
return true;
case SETTINGS:
this.startActivity(new Intent(android.provider.Settings.ACTION_SETTINGS));
return true;
case HELP:
this.appView.sendJavascript("navigator.notification.alert('No help')");
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
My testapp.xml
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="#+id/menu_home"
android:icon="#drawable/icon_home"
android:showAsAction="ifRoom|withText"
android:title="Home" />
<item android:id="#+id/menu_settings"
android:icon="#drawable/icon_settings"
android:showAsAction="ifRoom|withText"
android:title="Settings" />
<item android:id="#+id/menu_help"
android:icon="#drawable/icon_help"
android:title="Help" />
</menu>
May be... You should remove: android:theme="#style/AppTheme" in AndroidManifest.xml
Or edit: android:theme="#android:style/Theme"
I have made an app with a lot of buttons and activities. I'm having trouble though understanding how to start a new activity through a button that is in my menu (when the menu button is clicked on phone) (inflatable menu). This is my code for the menu connected to my activity:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="#+id/item1" android:title="#string/menu_home"></item>
</menu>
Here is my activities in Java:
package com.gmail.derekcraigsmith.nanaimobus;
import android.os.Bundle;
import android.app.Activity;
import android.content.ClipData.Item;
import android.content.Intent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.PopupMenu;
import android.widget.PopupMenu.OnMenuItemClickListener;
public class Route1TimesCcMonfriAActivity extends Activity implements
OnMenuItemClickListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.route1_times_cc_monfri_a);
}
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.route1_times_cc_monfri_a, menu);
return true;
}
#Override
public boolean onMenuItemClick(MenuItem item) {
// TODO Auto-generated method stub
return false;
}
}
int id = item.getItemId();
switch (id) {
case R.id.your_menu_item_id : {
startActivity(new Intent(start_activity, next_activity));
}
where start activity is your main activity and next_activity is the activity you want to start.
Give a look on my blog here for more info.
activity_main.xml in menu folder
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="#+id/next"
android:title="Next" />
</menu>
In your activity inflate the menu
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item)
{
switch (item.getItemId()) //get the id which is an int
{
case R.id.next: // check if its the menu item next selected
// Single menu item is selected do something
// Ex: launching new activity/screen or show alert message
Toast.makeText(MainActivity.this, "Next Selected", Toast.LENGTH_SHORT).show();
startActivity(new Intent(MainActivity.this,secondAct.class));//start activity
break;
default:
return super.onOptionsItemSelected(item);
}
}