android - Fragment to Activity to Fragment Communication -
i have 2 frame layouts(containers) in main.xml contains 2 fragments. want pass video url fragmentone activity , activity fragmenttwo . unable url in second fragment. below code,please me correct solution.
activity_main.xml
<relativelayout android:layout_width="match_parent" android:layout_height="match_parent"> <framelayout android:layout_width="match_parent" android:id="@+id/top" android:layout_height="350dp"> </framelayout> <framelayout android:layout_width="340dp" android:layout_margintop="20dp" android:id="@+id/frgten" android:layout_below="@+id/top" android:layout_marginleft="20dp" android:layout_marginright="32dp" android:layout_height="130dp"/> </relativelayout> fragment_one.xml
<relativelayout android:layout_width="match_parent" android:layout_height="match_parent"> <relativelayout android:layout_width="match_parent" android:layout_margintop="15dp" android:id="@+id/rl1" android:layout_height="wrap_content"> <textview android:layout_width="100dp" android:id="@+id/frg1" android:background="#c1a499" android:text="play" android:textalignment="center" android:layout_marginleft="25dp" android:layout_height="100dp" android:autolink="web"> </textview> <textview android:layout_width="100dp" android:id="@+id/frg2" android:layout_marginleft="10dp" android:background="#c1a499" android:text="play" android:textalignment="center" android:layout_torightof="@+id/frg1" android:layout_height="100dp" android:autolink="web"> </textview> <textview android:layout_width="100dp" android:id="@+id/frg3" android:background="#c1a499" android:text="play" android:textalignment="center" android:layout_marginleft="10dp" android:layout_torightof="@+id/frg2" android:layout_height="100dp" android:autolink="web"> </textview> </relativelayout> <relativelayout android:layout_width="match_parent" android:id="@+id/rl2" android:layout_margintop="15dp" android:layout_below="@+id/rl1" android:layout_height="wrap_content"> <textview android:layout_width="100dp" android:id="@+id/frg4" android:background="#c1a499" android:text="play" android:textalignment="center" android:layout_marginleft="25dp" android:layout_height="100dp" android:autolink="web"> </textview> <textview android:layout_width="100dp" android:id="@+id/frg5" android:background="#c1a499" android:text="play" android:textalignment="center" android:layout_marginleft="10dp" android:layout_torightof="@+id/frg4" android:layout_height="100dp" android:autolink="web"> </textview> <textview android:layout_width="100dp" android:id="@+id/frg6" android:background="#c1a499" android:text="play" android:textalignment="center" android:layout_marginleft="10dp" android:layout_torightof="@+id/frg5" android:layout_height="100dp" android:autolink="web"> </textview> </relativelayout> <relativelayout android:layout_width="match_parent" android:id="@+id/rl3" android:layout_below="@+id/rl2" android:layout_margintop="15dp" android:layout_height="wrap_content"> <textview android:layout_width="100dp" android:id="@+id/frg7" android:background="#c1a499" android:text="play" android:textalignment="center" android:layout_marginleft="25dp" android:layout_height="100dp" android:autolink="web"> </textview> <textview android:layout_width="100dp" android:id="@+id/frg8" android:background="#c1a499" android:text="play" android:textalignment="center" android:layout_marginleft="10dp" android:layout_torightof="@+id/frg7" android:layout_height="100dp" android:autolink="web"> </textview> <textview android:layout_width="100dp" android:id="@+id/frg9" android:background="#c1a499" android:text="play" android:textalignment="center" android:layout_marginleft="10dp" android:layout_torightof="@+id/frg8" android:layout_height="100dp" android:autolink="web"> </textview> </relativelayout> </relativelayout> fragment_two.xml
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <videoview android:layout_width="match_parent" android:id="@+id/video" android:layout_height="match_parent" /> </linearlayout> mainactivity
import android.support.v4.app.fragmentmanager; import android.support.v4.app.fragmenttransaction; import android.support.v7.app.appcompatactivity; import android.os.bundle; public class mainactivity extends appcompatactivity implements fragmentone.communicationchannel { private fragmentone sendfragment=new fragmentone(); private fragmenttwo getfragment=new fragmenttwo(); @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); fragmentmanager manager = getsupportfragmentmanager(); fragmenttransaction transaction = manager.begintransaction(); transaction.add(r.id.top,sendfragment); transaction.add(r.id.frgten,getfragment); transaction.commit(); } @override public void setcommunication(string url) { if(null != getfragment && getfragment.isinlayout()) { getfragment.storerecievedurl(url); } } } fragmentone
import android.app.activity; import android.os.bundle; import android.support.v4.app.fragment; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.textview; /** * simple {@link fragment} subclass. */ public class fragmentone extends fragment { private communicationchannel mcommchlistner=null; @override public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) { // inflate layout fragment final view view = inflater.inflate(r.layout.fragment_one, container, false); final textview t1 = (textview) view.findviewbyid(r.id.frg1); t1.setonclicklistener(new view.onclicklistener() { @override public void onclick(view view) { string url="http://www.androidbegin.com/tutorial/androidcommercial.3gp"; sendurl(url); } }); return view; } interface communicationchannel { public void setcommunication(string url); } @override public void onattach(activity activity) { super.onattach(activity); if(activity instanceof communicationchannel) { mcommchlistner = (communicationchannel)activity; } else { throw new classcastexception(); } } public void sendurl(string url){ mcommchlistner.setcommunication(url); } } fragmenttwo
import android.os.bundle; import android.support.v4.app.fragment; import android.util.log; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; /** * simple {@link fragment} subclass. */ public class fragmenttwo extends fragment { public fragmenttwo() { // required empty public constructor } @override public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) { // inflate layout fragment final view view= inflater.inflate(r.layout.fragment_two, container, false); return view; } void storerecievedurl(string url){ string videourl = url; } }
i didnt try running code think prob setcommunication method in activity.
i dont think how should instance of fragment. if see in google example in documentation here , youl see need instance of fragment this
@override public void setcommunication(string url) { fragmenttwo getfragmentinstance = (fragmenttwo ) getsupportfragmentmanager().findfragmentbyid(r.id.frgten); if(getfragmentinstance!=null) { getfragmentinstance.storerecievedurl(url); } }
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