android - Replace one fragment with an another fragment -
i want replace old fragment new fragment, still buttons of old fragment still visible in new fragment.
in old one, on button click 
fragmenttransaction transaction = getfragmentmanager().begintransaction(); fragment newfragment = genericmood.newinstance("a","b"); // replace whatever in fragment_container view fragment, // , add transaction stack if needed transaction.replace(r.id.allmoods, newfragment); transaction.addtobackstack(null); transaction.commitallowingstateloss(); i can replace old fragment new one, buttons r.id.allmoods fragment still visible on top of new fragment.
i tried given below code.
fragmenttransaction transaction = getfragmentmanager().begintransaction(); fragment newfragment = genericmood.newinstance("a","b"); // replace whatever in fragment_container view fragment, // , add transaction stack if needed transaction.replace(((viewgroup)getview().getparent()).getid(), newfragment); transaction.addtobackstack(null); transaction.commitallowingstateloss(); xml files:
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/allmoods" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/colorprimary" tools:context="com.moodoff.moods"> <button android:text="button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margintop="64dp" android:id="@+id/btn_btn" android:height="80dp" android:width="100dp" android:onclick="putmeoff" android:layout_marginleft="17dp" android:layout_marginstart="17dp"/> </relativelayout> this fragment supposed replace above:
<framelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:id="@+id/genericmood" android:layout_height="match_parent" android:background="@color/colorprimary" tools:context="com.moodoff.genericmood"> <!-- todo: update blank fragment layout --> <relativelayout android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#000000" android:layout_gravity="fill_horizontal" android:id="@+id/floatingbuttons" > <android.support.design.widget.floatingactionbutton android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margintop="1dp" android:layout_marginright="14dp" app:backgroundtint="#ffffff" android:layout_alignparenttop="true" android:layout_alignparentright="true" android:layout_alignparentend="true" android:src="@drawable/cameraicon" android:id="@+id/btn_camera" app:fabsize="mini" /> </relativelayout> </framelayout> both doesn't work. do? update: after replacing proper container buttons had gone new fragment not getting instantiated properly. gets pure blank white screen. 
my activity_alltabs.xml looks this: <?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.coordinatorlayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/main_content" android:layout_width="match_parent" android:layout_height="match_parent" android:fitssystemwindows="true" tools:context="com.moodoff.alltabs"> <android.support.design.widget.appbarlayout android:id="@+id/appbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:theme="@style/apptheme.appbaroverlay"> <android.support.design.widget.tablayout android:id="@+id/tabs" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@android:color/background_dark" /> </android.support.design.widget.appbarlayout> <android.support.v4.view.viewpager android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior" /> </android.support.design.widget.coordinatorlayout>
i have worked on fragments before , hope out , give better understanding of flow. firstly, mainactivity.xml file :
<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:context="com.example.activity.homeactivity"> //this framelayout contain fragments view. <framelayout android:id="@+id/container_view" android:layout_width="match_parent" android:layout_height="match_parent"> </framelayout> </relativelayout> next, create 2 fragments , xml mentioned below : fragment1.xml
<relativelayout 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:clickable="true" // important have tools:context=".fragments.frament1"> <button android:id="@+id/btn" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="bottom"/> </relativelayout> the next fragment same mentioned above. here fragment1.class:
public class fragment1 extends fragment implements view.onclicklistener { button btn; public fragment1() { // required empty public constructor } @override public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) { view view = inflater.inflate(r.layout.fragment1, container, false); view.setbackgroundcolor(color.white); //perform required conditions , return view button = (button) view.findviewbyid(r.id.btn); button.setonclicklistener(this); return view; } public void onclick(view v) { switch(v.getid()) { case r.id.btn: //replace current fragment on button click fragment fragment2= new fragment2(); getfragmentmanager().begintransaction(). replace(r.id.container_view, fragment2). addtobackstack("frags").commit(); break; } } } and fragment2 follows :
public class fragment2 extends fragment{ string tag = "fragment2"; public fragment2() { // required empty public constructor } @override public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) { view view = inflater.inflate(r.layout.fragment2,container,false); view.setbackgroundcolor(color.white); return view; } } as mentioned earlier, xml file same fragment1.xml. more important here main activity contain layout take fragments view when ever user switches fragments. hence use replace method replace previous view fragments view specified us.
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