Develop Reference

Sequential display of images automatically

I am using the code below to display images sequentially via button click. Now I want to display these images automatically after a particular time period. They should be displayed and change after a particular time and where the addition will be needed in the same code.
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {
private static ImageView imgView;
private static Button ButtonSbm;
private int current_image_index;
int [] images={R.mipmap.ic_launcher,R.mipmap.ic_launcher1};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab=(FloatingActionButton)findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action",Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
buttonClick();
}
public void buttonClick(){
imgView =(ImageView)findViewById(R.id.imageView);
ButtonSbm=(Button)findViewById(R.id.button);
ButtonSbm.setOnClickListener(
new View.OnClickListener(){
public void onClick(View v){
current_image_index++;
current_image_index=current_image_index %images.length;
imgView.setImageResource(images[current_image_index]);
}
}
);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, 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.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}

Hi you can use he following code
public class TestService extends IntentService {
Context ctx;
private CountDownTimer countDownTimer;
public static final String Tag="TestService";
private long startTime= 2 * 1000;
int index = 0;
private final long interval = 1 * 1000;
public TestService() {
super("TestService");
// TODO Auto-generated constructor stub
}
#Override
protected void onHandleIntent(Intent intent) {
countDownTimer = new MyCountDownTimer(startTime, interval);
countDownTimer.start();
Looper.loop();
}
public class MyCountDownTimer extends CountDownTimer {
public MyCountDownTimer(long startTime, long interval) {
super(startTime, interval);
}
#Override
public void onFinish() {
// do as per you required
}
#Override
public void onTick(long millisUntilFinished) {
Log.v(Tag,"Inside OnTick()");
// do as per you required
}
}
}

launching Activity only once(First app use) Using Boolean flags

So i got my firstScreen that i want to be shown just on the first app use.
and i have my mainActivity which will follow the firstScreen.
Im only starting with android and i don't want to use the solutions brought in here: How to launch activity only once when app is opened for first time? AND Can I have an android activity run only on the first time an application is opened? because i dont know SharedPreferrences yet.
So how can i achieve that using Boolean flags?
I have got:boolean firstTimeUse = false; In my firstScreenActivity
And when i start myMainActivity i set the flag to true;
firstTimeUse = true;
Intent intent = new Intent(FirstScreen.this,MainActivity.class);
startActivity(intent);
The problem is the MainActivity doesn't recognize the Boolean variable.
Am i doing it wrong? Or i can still make some modifications and do it with flags?
EDIT
FirstScreen.java:
package com.example.predesignedmails;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.method.ScrollingMovementMethod;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
public class FirstScreen extends AppCompatActivity
{
TextView welcomeTextTextView;
String welcomeText;
ImageButton goToMainImageButton;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first_screen);
viewsInitialization();
welcomeText = "Welcome to Pre Designed Mails.\n"
+ "In here you will have a tons of Emails templates for about every purpose you will need.\n"
+ "Just fill the small details and click Send.\n\n"
+ "Send E-mails fast and efficient!";
welcomeTextTextView.setText(welcomeText);
welcomeTextTextView.setMovementMethod(new ScrollingMovementMethod());
goToMainImageButton.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
Intent intent = new Intent(FirstScreen.this,MainActivity.class);
startActivity(intent);
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.first_screen, 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.
int id = item.getItemId();
if (id == R.id.action_settings)
{
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
protected void onResume()
{
super.onResume();
if (SettingsManager.getBoolean(this, SettingsManager.FIRST_LAUNCH, true))
{
SettingsManager.saveBoolean(this, SettingsManager.FIRST_LAUNCH, false);
// First launch code
Log.d("FirstLaunchCheckUp","First Launch");
}
}
private void viewsInitialization()
{
welcomeTextTextView = (TextView) findViewById(R.id.welcome_text_text_view_id);
goToMainImageButton = (ImageButton) findViewById(R.id.go_to_main_button_id);
}
}
The onResume() method i added manually. It wasn't added automatically when i crated a new activity in Eclipse.
MainActivity.java:
package com.example.predesignedmails;
import android.support.v7.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity
{
Button hatefullMailButton;
Button loveMailsButton;
Button welcomeScreenButton;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getWindow().getDecorView().setBackgroundColor(getResources().getColor(R.color.main_activity_background_color)); // Setting background color
viewsInitialization();
hatefullMailButton.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
Intent intent = new Intent(MainActivity.this,HatefulMailsActivity.class);
startActivity(intent);
}
});
loveMailsButton.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
Intent intent = new Intent(MainActivity.this,LoveMailsActivity.class);
startActivity(intent);
}
});
welcomeScreenButton.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
Intent intent = new Intent(MainActivity.this,FirstScreen.class);
startActivity(intent);
}
});
}
#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 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);
}
private void viewsInitialization()
{
hatefullMailButton = (Button) findViewById(R.id.hateful_email_button_id);
loveMailsButton = (Button) findViewById(R.id.love_email_button_id);
welcomeScreenButton = (Button) findViewById(R.id.welcome_screen_button_id);
}
}

In your Activity
#Override
protected void onResume() {
super.onResume();
if (SettingsManager.getBoolean(this, SettingsManager.FIRST_LAUNCH, true)){
SettingsManager.saveBoolean(this, SettingsManager.FIRST_LAUNCH, false);
//your first launch code
}
}
SharedPreference helper class
public class SettingsManager
{
public static final String FIRST_LAUNCH= "first_lauch";
public static String getString(Context context, String key, String defValue) {
return PreferenceManager.getDefaultSharedPreferences(context).getString(key, defValue);
}
public static int getInt(Context context, String key, int defValue) {
return PreferenceManager.getDefaultSharedPreferences(context).getInt(key, defValue);
}
public static boolean getBoolean(Context context, String key, boolean defValue) {
return PreferenceManager.getDefaultSharedPreferences(context).getBoolean(key, defValue);
}
public static void saveString(Context context, String key, String value) {
PreferenceManager.getDefaultSharedPreferences(context).edit().putString(key, value).commit();
}
public static void saveInt(Context context, String key, int value) {
PreferenceManager.getDefaultSharedPreferences(context).edit().putInt(key, value).commit();
}
public static void saveBoolean(Context context, String key, boolean value) {
PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(key, value).commit();
}
}
For the future you can write more simple methods on this SettingsManager, like
public static int getFirstLaunch(Context context) {
return getBoolean(context, FIRST_LAUNCH, true);
}
public static int saveFirstLaunch(Context context, boolean value) {
return saveBoolean(context, FIRST_LAUNCH, value);
}
And use it like
#Override
protected void onResume() {
super.onResume();
if (SettingsManager.getFirstLaunch(this)){
SettingsManager.saveFirstLaunch(this, false);
//your first launch code
}
}

The reason why firstScreen does not recognize boolean firstTimeUse in mainActivity is because it does not yet exist. Only after you have executed the line startActivity(intent) will there exist an object of class mainActivity. Basically, you cannot set a boolean on something that does not yet exist.
Instead, what you can do is pass extra information to an activity that is to be started. When the just-started-activity is initializing itself it can read the extra information and act on it.
So build your intent for the activity you want to start and also set extra information in the 'extras':
Intent intent = new Intent(FirstScreen.this,MainActivity.class);
intent.putExtra("firstTimeUse", true);
startActivity(intent);
Now for your MainActivity to know the value of firstTimeUse it must read the extras:
public class MainActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
boolean firstTimeUse = getIntent().getBooleanExtra("firstTimeUse", false);
// do processing dependent on whether it's the first time or not
}
}
This should solve your problem of "the MainActivity doesn't recognize the Boolean variable".

How to open URL in an Activity (instead of a new browser)?

Can anyone please help me check my code to see why it cannot be
launched in the app itself but directs me to a browser? ): Thanks!!
MAIN ACTIVITY.JAVA
package com.intelligami.androidwebviewapp;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.ShareActionProvider;
public class MainActivity extends Activity {
private WebView mWebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = (WebView) findViewById(R.id.activity_main_webview);
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
mWebView.loadUrl("http://intelligami.com/submitqn");
mWebView.setWebViewClient(new com.intelligami.androidwebviewapp.MyAppWebViewClient(){
#Override
public void onPageFinished(WebView view, String url) {
//hide loading image
findViewById(R.id.progressBar1).setVisibility(View.GONE);
//show webview
findViewById(R.id.activity_main_webview).setVisibility(View.VISIBLE);
}});
}
private class MyWebViewClient extends MyAppWebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
#Override
public void onBackPressed() {
if(mWebView.canGoBack()) {
mWebView.goBack();
} else {
super.onBackPressed();
}
}
private ShareActionProvider mShareActionProvider;
#Override
public boolean onCreateOptionsMenu(Menu menu) {
/** Inflating the current activity's menu with res/menu/items.xml */
getMenuInflater().inflate(R.menu.menu_main, menu);
/** Getting the actionprovider associated with the menu item whose id is share */
mShareActionProvider = (ShareActionProvider) menu.findItem(R.id.share).getActionProvider();
/** Setting a share intent */
mShareActionProvider.setShareIntent(getDefaultShareIntent());
return super.onCreateOptionsMenu(menu);
}
/** Returns a share intent */
private Intent getDefaultShareIntent(){
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_SUBJECT, "Convert Website to Android Application");
intent.putExtra(Intent.EXTRA_TEXT," Vist www.AndroidWebViewApp.com if you Want to Convert your Website or Blog to Android Application");
return intent;
}
}
MY APP VIEW CLIENT. JAVA
package com.intelligami.androidwebviewapp;
import android.content.Intent;
import android.net.Uri;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MyAppWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(Uri.parse(url).getHost().endsWith("intelligami.com/submitqn")) {
return false;
}
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
view.getContext().startActivity(intent);
return true;
}
}
Where is the error? :D
It keeps opening up in the browser.

In the following line:
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
you're asking Android to open a URL using the intent constant ACTION_VIEW - so it defaults to the external browser.
Here a full example (taken from here) that shows how to open the url using a WebViewClient:
package com.paresh.webviewclientdemo;
import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebView;
import android.webkit.WebViewClient;
/*
* Demo of creating an application to open any URL inside the application and clicking on any link from that URl
should not open Native browser but that URL should open in the same screen.
*/
public class WebViewClientDemoActivity extends Activity {
/** Called when the activity is first created. */
WebView web;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
web = (WebView) findViewById(R.id.webview01);
web.setWebViewClient(new myWebClient());
web.getSettings().setJavaScriptEnabled(true);
web.loadUrl("http://www.google.com");
}
public class myWebClient extends WebViewClient
{
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return true;
}
}
// To handle "Back" key press event for WebView to go back to previous screen.
#Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if ((keyCode == KeyEvent.KEYCODE_BACK) && web.canGoBack()) {
web.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
}

Class won't execute properly inside main activity? [duplicate]

This question already has answers here:
How to use java classes within one activity?
(4 answers)
Closed 7 years ago.
How can you use a java class within one activity, by that I mean is having different components of that activity spread out in a bunch of java classes. I'm a little new to android and this is what I have tried so far:
MainActivity.java
package com.example.alex.myapplication;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Something(this);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, 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.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Something.java
import android.view.View;
import android.widget.EditText;
import android.widget.Button;
import android.app.Activity;
public class Something {
private Activity activity;
private Button add,subtract,multiply,devide;
private EditText editA, editB, editC;
private double doubleA,doubleB,doubleC;
public Something(Activity a){
activity=a;
click();
}
public void click(){
editA = (EditText) activity.findViewById(R.id.editText);
editB = (EditText) activity.findViewById(R.id.editText2);
editC = (EditText) activity.findViewById(R.id.editText3);
doubleA =Double.parseDouble(editA.getText().toString());
doubleB =Double.parseDouble(editB.getText().toString());
add = (Button) activity.findViewById(R.id.add);
subtract = (Button) activity.findViewById(R.id.subtract);
multiply = (Button) activity.findViewById(R.id.multiply);
devide = (Button) activity.findViewById(R.id.devide);
add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
doubleC = doubleA+doubleB;
String s = "" + doubleC;
editC.setText(s);
}
});
subtract.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
doubleC = doubleA-doubleB;
String s = "" + doubleC;
editC.setText(s);
}
});
multiply.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
doubleC = doubleA*doubleB;
String s = "" + doubleC;
editC.setText(s);
}
});
devide.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
doubleC = doubleA/doubleB;
String s = "" + doubleC;
editC.setText(s);
}
});
}
}
So I wasn't sure why my listeners weren't working on my buttons so I tried passing the activity to the class that has the listeners added to the buttons but that didn't work in fact now my application won't even start in the emulator. All I wanted to do was have "MainActivity" handle the "Gui" and have the "Something" class handle the listeners but no matter what I do I can't seem to make them communicate with one another to form one Activity.
Someone suggested to do a pass in main activity Something s = new Something(MainActivity.this); and call it from within main activity like this s.click(); but that didn't work.

in android every class that extends activity just have a one xml Layout to view and handle this XML file just in it's Activities,and you can make a lot of java classes that send alot of parameter but when you want to handle XML behavioral you should do in own class that Extends Activity,so you can do this:
public class MainActivity extends ActionBarActivity {
Button myBtn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Something(this);
myBtn=(Button)findViewById(R.id.Btn);
myBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, 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.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}

Android Share Menu

I have an app in which I have a WebView where I display some websites.
I want create a Share button in Menu.I've tried a lot of code.
What should I write here ?
private void action_shareMenuItem(){
//??????????????? What should I write here ?
}
MainActivity.java
package com.kefelon.goldplak;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.widget.ShareActionProvider;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
public class MainActivity extends ActionBarActivity {
WebView webview;
private ShareActionProvider mShareActionProvider;
ProgressBar loadingProgressBar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webview = (WebView) findViewById(R.id.webview);
webview.getSettings().setSupportZoom(true);
webview.getSettings().setJavaScriptEnabled(true);
webview.loadUrl("http://www.goldplak.com");
webview.setWebViewClient(new WebViewClient() {
});
loadingProgressBar=(ProgressBar)findViewById(R.id.progressbar_Horizontal);
webview.setWebChromeClient(new WebChromeClient() {
// this will be called on page loading progress
#Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
loadingProgressBar.setProgress(newProgress);
//loadingTitle.setProgress(newProgress);
// hide the progress bar if the loading is complete
if (newProgress == 100) {
loadingProgressBar.setVisibility(View.GONE);
} else{
loadingProgressBar.setVisibility(View.VISIBLE);
}
}
});
}
#Override
public void onBackPressed()
{
if(webview.canGoBack()){
webview.goBack();
}else{
new AlertDialog.Builder(this)
.setIcon(android.R.drawable.ic_dialog_alert)
.setTitle("Çıkış")
.setMessage("Uygulamadan çıkmak istediğinize emin misiniz?")
.setPositiveButton("Evet", new DialogInterface.OnClickListener()
{
#Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
})
.setNegativeButton("Hayır", null)
.show();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
super.onOptionsItemSelected(item);
switch(item.getItemId()) {
case R.id.action_about:
action_aboutMenuItem();
break;
case R.id.action_share:
action_shareMenuItem();
break;
case R.id.action_settings:
action_settingsMenuItem();
break;
}
return true;
}
private void action_aboutMenuItem(){
new AlertDialog.Builder(this)
.setTitle("Hakkımızda")
.setMessage("Gold Plak olarak müzik sektörü ile ilgili müşteri odaklı kişisel ve kurumsal hizmet veren, dinamik, güler yüzlü, yaratıcı kadromuzla müşterilerimizin beklentilerini karşılamak için kesintisiz hizmet vermekteyiz.\n" +
"\n" +
"Bu şekilde müşterilerimizin plak ve dj ekipmanlarından yararlanmalarını sağlayarak taleplerini karşılayabilmek. Hedefimiz, yeni çıkan tüm ürünleri sunmak, maksimum düzeyde müşteri memnuniyetini sağlamak..")
.setNeutralButton("Tamam", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
}
}).show();
}
private void action_shareMenuItem(){
//??????????????? What should I write here ?
}
private void action_settingsMenuItem(){
new AlertDialog.Builder(this)
.setTitle("Versiyon")
.setMessage("Gold Plak v1.1")
.setNeutralButton("Tamam", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
}
}).show();
}
}

You may need to create an xml file inside res>menu directory of your project for a share menu,
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/share"
android:icon="#drawable/ic_action_share" // share button icon.
android:showAsAction="always"
android:title="#string/action_share">
</item>
</menu>
In your java file,
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.desc_xml, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int itemId = item.getItemId();
if (itemId == R.id.share) {
shareNews();
}
return super.onOptionsItemSelected(item);
}
and here is the share news method,
private void shareNews() {
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("text/plain");
shareIntent.putExtra(Intent.EXTRA_TEXT, "Put Data Here");
startActivity(Intent.createChooser(shareIntent,getString("How do you want to share")));
}

This question has already been answer but anyway, this is a working solution :
in your fragment/activity:
private ShareActionProvider mShareActionProvider;
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
getActivity().getMenuInflater().inflate(R.menu.deal_detail, menu);
// Locate MenuItem with ShareActionProviderr
MenuItem item = menu.findItem(R.id.action_share);
// Fetch and store ShareActionProvider
mShareActionProvider = (ShareActionProvider) item.getActionProvider();
mShareActionProvider.setShareIntent(getShareIntent());
}
// Create the share intent
private Intent getShareIntent() {
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "yoursubject");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, "yourtext);
return sharingIntent;
}