Develop Reference

Android: Adding menu resource in apk crashes it

I am trying to learn android, I create, deploy app using ant based CLI.
My manifest file is as follows
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.frag"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="21" />
<application android:label="#string/app_name" android:icon="#drawable/ic_launcher" android:theme="#android:style/Theme.Holo">
<activity android:name="MainActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
I added a menu xml file in by creating res\menu\items.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#+id/action_share"
android:title="Share it"
>
</item>
</menu>
If I now compile using ant debug, then run the app, the app crashes. Any ideas?
Following is the activity code, it does not uses Menu as of now.
package com.example.frag;
import android.app.Activity;
import android.app.ActionBar;
import android.os.Bundle;
import android.app.ActionBar.Tab;
import android.app.FragmentTransaction;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
//import android.support.v4.view.Menu;
//import android.support.v4.view.MenuInflater;
public class MainActivity extends FragmentActivity implements ActionBar.TabListener
{
private ActionBar actionBar;
private ViewPager viewPager;
private TabPagerAdapter tabPagerAdapter;
private String[] tabs = { "Mouse", "Keyboard"};
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
viewPager = (ViewPager) findViewById (R.id.pager);
tabPagerAdapter = new TabPagerAdapter (getSupportFragmentManager());
viewPager.setAdapter (tabPagerAdapter);
actionBar = getActionBar();
//actionBar.setHasOptionsMenu (true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name).setTabListener(this));
}
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
/**
* on swipe select the respective tab
* */
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) { }
#Override
public void onPageScrollStateChanged(int arg0) { }
});
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) { }
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {}
/*#Override
public boolean onCreateOptionsMenu(Menu menu)
{
MenuInflater inflater = getMenuInflater();
inflater.inflate (R.menu.items, menu);
return super.onCreateOptionsMenu (menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
super.onOptionsItemSelected(item);
return true;
}*/
}
UPDATE
I removed menu resources, then tried adding styles.xml in values/, recompiled, launched and it crashed again.

App icon doesn't appear in action bar while using Theme.appCompat.light.DarkActionBar

I am following a tutorrial to make a Navigation Drawer using supported library V7 so i had to use Theme.appCompat.light.DarkActionBar as the app theme...
The problem is:
App Icon doesn't appear in the default place in the Action Bar.
The drawer icon is shifted to the right
Here is my Code:
package com.tutorial18nav.tutorial18nav;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBarDrawerToggle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity implements OnItemClickListener {
private DrawerLayout mDrawerLayout;
private ListView mDrawerlist;
String[] sections;
private android.support.v4.app.ActionBarDrawerToggle mDrawerToggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerlist = (ListView) findViewById(R.id.left_drawer);
sections = getResources().getStringArray(R.array.sections);
mDrawerlist.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, sections));
mDrawerlist.setOnItemClickListener(this);
mDrawerToggle = new android.support.v4.app.ActionBarDrawerToggle(this, mDrawerLayout, R.drawable.ic_drawer, R.string.drawer_open, R.string.drawer_close) {
#Override
public void onDrawerOpened(View drawerView) {
Toast.makeText(MainActivity.this, "Drawer is opened", Toast.LENGTH_SHORT).show();
}
#Override
public void onDrawerClosed(View drawerView) {
Toast.makeText(MainActivity.this, "Drawer is closed", Toast.LENGTH_SHORT).show();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(this, "Section number " + (position + 1) + " has been selected", Toast.LENGTH_SHORT).show();
selectItem(position);
}
public void selectItem(int position) {
mDrawerlist.setItemChecked(position, true);
setTitle(sections[position]);
}
public void setTitle(String title) {
getSupportActionBar().setTitle(title);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
#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;
}
if(mDrawerToggle.onOptionsItemSelected(item)){
return true;
}
return super.onOptionsItemSelected(item);
}
}
Activity_main.xml:
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</FrameLayout>
<ListView
android:background="#FF8800"
android:id="#+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="left">
</ListView>
</android.support.v4.widget.DrawerLayout>
Manifest File:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.tutorial18nav.tutorial18nav"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="21"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/Theme.AppCompat.Light.DarkActionBar" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Menu.xml
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:context="com.tutorial18nav.tutorial18nav.MainActivity" >
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:showAsAction="never"
android:title="#string/action_settings"/>
</menu>

Can't add action buttons on action bar

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.

Search view widget and Icon not showing up in the action bar

I am a beginner to Android. Trying to add a search a widget in the action bar.
Here is my menu file code ("main_acitivity.xml"):
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- Search, should appear as action button -->
<item android:id="#+id/action_search"
android:icon="#drawable/ic_search"
android:title="#string/action_search"
android:showAsAction="always"
android:actionViewClass="android.support.v7.widget.SearchView" />
<!-- Settings, should always be in the overflow -->
<item android:id="#+id/action_settings"
android:title="#string/action_settings"
android:showAsAction="never" />
</menu>
My MainActivity class code is:
package com.example.fragment;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.os.Build;
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;
public class MainActivity extends ActionBarActivity {
public final static String EXTRA_MESSAGE = "com.example.fragment.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,menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle presses on the action bar items
switch (item.getItemId()) {
case R.id.action_search:
return true;
case R.id.action_settings:
return true;
default:
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);
}
}
I have tried "android.widget.SearchView" as well but it is not even showing the icon. Could you please advise what I am doing wrong ?

you missed these:
xmlns:yourappname="http://schemas.android.com/apk/res-auto"
and
yourappname:showAsAction="always"
yourappname:actionViewClass="android.support.v7.widget.SearchView"/>

Can't create action buttons

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