In my experiment, onOptionsItemSelected() will not be called when Share menu item clicked. So a TextWatcher is implemented when any EditText changed, to update ShareIntent.
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| ActionBarCompat with ShareActionProvider to update dynamic content |
<LinearLayout 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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<EditText
android:id="@+id/fieldemailaddress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textEmailAddress"
android:hint="email address" />
<EditText
android:id="@+id/fieldemailtitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Hello from android-er.blogspot.com"
android:hint="email title"/>
<EditText
android:id="@+id/fieldemailcontent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="email content"/>
</LinearLayout>
/res/menu/main.xml, same as before.
<menu
xmlns:myapp="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/action_share"
android:title="Share"
myapp:actionProviderClass="android.support.v7.widget.ShareActionProvider"
myapp:showAsAction="always|withText" />
<item
android:id="@+id/action_settings"
myapp:showAsAction="always|withText"
android:title="@string/action_settings"/>
</menu>
MainActivity.java
package com.example.testactionbarcompat;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.ShareActionProvider;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
EditText fieldEmailAddress, fieldEmailTitle, fieldEmailContent;
private ShareActionProvider myShareActionProvider;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
fieldEmailAddress = (EditText)findViewById(R.id.fieldemailaddress);
fieldEmailTitle = (EditText)findViewById(R.id.fieldemailtitle);
fieldEmailContent = (EditText)findViewById(R.id.fieldemailcontent);
fieldEmailAddress.addTextChangedListener(myTextWatcher);
fieldEmailTitle.addTextChangedListener(myTextWatcher);
fieldEmailContent.addTextChangedListener(myTextWatcher);
}
/*
* update ActionProvider by calling setShareIntent()
* When any EditText changed
*/
TextWatcher myTextWatcher = new TextWatcher(){
@Override
public void afterTextChanged(Editable s) {
setShareIntent();
}
@Override
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {}
@Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {}
};
@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);
//add MenuItem(s) to ActionBar using Java code
MenuItem menuItem_Info = menu.add(0, R.id.menuid_info, 0, "Info");
menuItem_Info.setIcon(android.R.drawable.ic_menu_info_details);
MenuItemCompat.setShowAsAction(menuItem_Info,
MenuItem.SHOW_AS_ACTION_ALWAYS|MenuItem.SHOW_AS_ACTION_WITH_TEXT);
//Handle share menu item
MenuItem shareItem = menu.findItem(R.id.action_share);
myShareActionProvider = (ShareActionProvider)
MenuItemCompat.getActionProvider(shareItem);
setShareIntent();
//return true;
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
//return super.onOptionsItemSelected(item);
switch (item.getItemId()) {
case R.id.action_share:
//It never called in my experiment
Toast.makeText(this, "Share", Toast.LENGTH_SHORT).show();
setShareIntent();
return false;
case R.id.action_settings:
//match with /res/menu/main.xml
Toast.makeText(this, "Setting", Toast.LENGTH_SHORT).show();
return true;
case R.id.menuid_info:
//match with defined in onCreateOptionsMenu()
Toast.makeText(this, "Info", Toast.LENGTH_SHORT).show();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
//Set the share intent
private void setShareIntent(){
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("plain/text");
intent.putExtra(Intent.EXTRA_EMAIL,
new String[]{fieldEmailAddress.getText().toString()});
intent.putExtra(Intent.EXTRA_SUBJECT,
fieldEmailTitle.getText().toString());
intent.putExtra(Intent.EXTRA_TEXT,
fieldEmailContent.getText().toString());
myShareActionProvider.setShareIntent(intent);
}
}
Download the files.Visit: ActionBarCompat Step-by-step
