Fragment callback interface sharing data between applications

 PackageCom.example.mydemo;Importjava.util.List;Importandroid.app.Activity;ImportAndroid.app.ActionBar;Importandroid.app.Fragment;Importandroid.content.Intent;ImportAndroid.content.pm.PackageManager;ImportAndroid.content.pm.ResolveInfo;ImportAndroid.database.Cursor;ImportAndroid.net.Uri;ImportAndroid.os.Bundle;ImportAndroid.view.LayoutInflater;ImportAndroid.view.Menu;ImportAndroid.view.MenuItem;ImportAndroid.view.View;ImportAndroid.view.ViewGroup;ImportAndroid.widget.TextView;ImportAndroid.os.Build;ImportAndroid.provider.ContactsContract.CommonDataKinds.Phone; Public classMainactivityextendsActivityImplementsPlaceholderfragment.ondtareceivedlistener {String sharedtext; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main); if(Savedinstancestate = =NULL) {Getfragmentmanager (). BeginTransaction (). Add (R.id.container,Newplaceholderfragment ()). commit (); } Intent Intent=getintent (); String Action=intent.getaction (); String type=Intent.gettype (); if(Intent.ACTION_SEND.equals (ACTION) && type! =NULL) {            if("Text/plain". Equals (Type) {Handlesendtext (intent);//Handle text being sent            }        }    }    voidHandlesendtext (Intent Intent) {Sharedtext=Intent.getstringextra (Intent.extra_text); } @Override Public BooleanOncreateoptionsmenu (Menu menu) {//inflate the menu; This adds items to the action bar if it is present.getmenuinflater (). Inflate (r.menu.main_activity_actions, menu); return true; } @Override Public Booleanonoptionsitemselected (MenuItem item) {//Handle Action Bar item clicks here. The Action Bar would//automatically handle clicks on the Home/up button, so long//As you specify a the parent activity in Androidmanifest.xml.        intID =Item.getitemid (); if(id = =r.id.action_settings) {            return true; }        return Super. onoptionsitemselected (item); } @Override Public voidontextselected (view view) {//TODO auto-generated Method Stub        if(Sharedtext! =NULL) {            //Update UI to reflect text being shared( (TextView) view). SetText (Sharedtext); }    }    //@Override//protected void Onactivityresult (int requestcode, int resultcode, Intent//data) {    // //TODO auto-generated Method Stub//if (Requestcode = = 1) {// //Make sure the request was successful//if (ResultCode = = RESULT_OK) {// //Get the URI that points to the selected contact//Uri Contacturi = Data.getdata (); // //We only need the number column, because there would be is only one row in//The result//string[] projection = {Phone.number}; //    // //Perform the query on the contact to get the number column// //We don ' t need a selection or sort order (there ' s only one result for//The given URI)// //caution:the Query () method should is called from a separate the thread to//Avoid blocking// //your app ' s UI thread. (For simplicity of the sample, this code doesn ' t//Does that .) // //consider using Cursorloader to perform the query. //cursor cursor = getcontentresolver ()//. Query (Contacturi, projection, NULL, NULL, NULL); //Cursor.movetofirst (); //    // //Retrieve The phone number from the number column//int column = Cursor.getcolumnindex (phone.number); //String number = cursor.getstring (column); //Tv.settext (number); // //Do something with the phone number ...// }    // }    // }}

Fragment

 PackageCom.example.mydemo;Importandroid.app.Activity;Importandroid.app.Fragment;ImportAndroid.os.Bundle;ImportAndroid.view.LayoutInflater;ImportAndroid.view.View;ImportAndroid.view.ViewGroup;ImportAndroid.widget.TextView;/*** A placeholder fragment containing a simple view.*/ Public classPlaceholderfragmentextendsFragment {Ondtareceivedlistener mcallback; //Container Activity must implement this interface     Public InterfaceOndtareceivedlistener { Public voidontextselected (view view); }         Publicplaceholderfragment () {} @Override Public voidOnattach (activity activity) {//TODO auto-generated Method Stub        Super. Onattach (activity); Try{mcallback=(Ondtareceivedlistener) activity; } Catch(classcastexception e) {Throw Newclasscastexception (activity.tostring ()+ "must implement Ondtareceivedlistener"); }} @Override PublicView Oncreateview (layoutinflater inflater, ViewGroup container, Bundle savedinstancestate) {View R Ootview= Inflater.inflate (R.layout.fragment_main, container,false); TextView TV=(TextView) Rootview.findviewbyid (r.id.tv);        mcallback.ontextselected (TV); returnRootview; }}

Manifest

<?XML version= "1.0" encoding= "Utf-8"?><Manifestxmlns:android= "Http://schemas.android.com/apk/res/android" Package= "Com.example.mydemo"Android:versioncode= "1"Android:versionname= "1.0" >    <USES-SDKandroid:minsdkversion= "+"android:targetsdkversion= "+" />    <ApplicationAndroid:allowbackup= "true"Android:icon= "@drawable/ic_launcher"Android:label= "@string/app_name"Android:theme= "@style/customactionbartheme" >        <ActivityAndroid:name= "Com.example.mydemo.MainActivity"Android:label= "@string/app_name" >            <Intent-filter>                <ActionAndroid:name= "Android.intent.action.MAIN" />                <categoryAndroid:name= "Android.intent.category.LAUNCHER" />            </Intent-filter>            <Intent-filter>                <ActionAndroid:name= "Android.intent.action.SEND" />                <categoryAndroid:name= "Android.intent.category.DEFAULT" />                <DataAndroid:mimetype= "Text/plain" />            </Intent-filter>        </Activity>    </Application></Manifest>

Fragment callback interface sharing data between applications