Replacing a single fragment with multiple fragments - android

I have one activity (Navigation Controller) that controls multiple fragments. The initial screen the user sees is a single fragment placed into one container. When I click a button to a different fragment I need to add the first fragment to the backstack and add the two new fragments to different containers than the first one. The two fragments are a map fragment on top and a profile details fragment on the bottom Is this even possible?
The code is below.
Navigation Controller Home Fragment (this is the main screen when the app starts):
public void home(Bundle savedInstanceState){
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
if (findViewById(R.id.fragment_container) != null) {
if (savedInstanceState != null) {
return;
}
// Create a new Fragment to be placed in the activity layout
CurrentFriendsFragment firstFragment = new CurrentFriendsFragment();
// Add the fragment to the 'fragment_container' FrameLayout
fragmentTransaction
.setCustomAnimations(R.animator.fade_in, R.animator.fade_out)
.replace(R.id.fragment_container, firstFragment, "firstFragment")
.commit();
}
}
Navigation Controller Profile Fragment:
#Override
public void onProfileButtonClicked() {
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
if (findViewById(R.id.fragment_container) != null) {
if (savedInstanceState1 != null) {
return;
}
MapFragment mapFragment = new MapFragment();
// Create a new Fragment to be placed in the activity layout
ProfileFragment profileFragment = new ProfileFragment();
// Add the fragment to the 'fragment_container' FrameLayout
fragmentTransaction
.setCustomAnimations(R.animator.slide_in_up, R.animator.slide_out_up, R.animator.slide_in_down, R.animator.slide_out_down)
.add(R.id.fragment_container_bottom_large, profileFragment)
.add(R.id.fragment_container_top_small, mapFragment)
.commit();
}
}
And here is the main activities xml file. Note the three different containers. "fragment_container" for full screen fragments, and "fragment_container_top_small", "fragment_container_bottom_large" for multiple fragments on one page.
<?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:id="#+id/activity_navigation"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.parse.starter.ViewControllers.NavigationController"
android:background="#color/palette_darkwhite">
<include layout="#layout/tool_bar"
android:id="#+id/toolbar_layout" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_below="#+id/toolbar_layout"
android:layout_above="#+id/bottom_navigation_navbar">
<RelativeLayout
android:id="#+id/fragment_container_top_small"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
</RelativeLayout>
<FrameLayout
android:id="#+id/fragment_container_bottom_large"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="3">
</FrameLayout>
</LinearLayout>
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/toolbar_layout"
android:layout_above="#+id/bottom_navigation_navbar">
</FrameLayout>
<FrameLayout
android:id="#+id/fragment_container_popup"
android:layout_width="275dp"
android:layout_height="275dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottom_navigation_navbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#color/palette_lightwhite">
<ImageView
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_gravity="center_horizontal"
android:background="#null"
app:srcCompat="#drawable/collpaseup" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_vertical">
<LinearLayout android:id="#+id/thumbnail2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dp"
android:layout_alignParentLeft="true"
android:layout_marginRight="5dp">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/profile_picture_navbar"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_gravity="center_vertical"
app:civ_border_color="#FF000000"/>
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/thumbnail2"
android:layout_toRightOf="#+id/thumbnail2"
android:textColor="#color/palette_primarycolor"
android:id="#+id/nameLabel"
android:text="Name"
android:textSize="15sp"
android:textStyle="bold"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/nameLabel"
android:layout_toRightOf="#+id/thumbnail2"
android:textColor="#color/palette_primarycolor"
android:id="#+id/locationLabel"
android:text="Location"
android:textSize="12sp"
android:textStyle="bold"/>
</RelativeLayout>
</android.support.design.widget.BottomNavigationView>
</RelativeLayout>

Have 3 containers and use View.GONE to make the 1st disappear and then View.VISIBLE to make the other 2 appear.

Related

Frame layout inside a fragment

I am working in a Fragment. it contains 2 Buttons and a FrameLayout:
<FrameLayout 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"
tools:context="fragments.Fragment_Book_A_Cam">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="2">
<Button
android:id="#+id/bt_Public"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_weight="1"
android:background="#drawable/red"
android:text="Public Jobs "
android:textColor="#FFFFFF" />
<Button
android:id="#+id/bt_Active"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_weight="1"
android:background="#drawable/black"
android:text="Active Jobs"
android:textColor="#FFFFFF" />
</LinearLayout>
<FrameLayout
android:id="#+id/Fragment_Jobs_BookACam"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
</LinearLayout>
I want to load another Fragment in the FrameLayout on a Button click and don't want to replace the main FrameLayout.
All the methods I have used either crash or replace the main Fragment.
bt_Public.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// fragment = new Fragment_MyCloudVideo();
// FragmentManager fragmentManager = ;
// FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
// fragmentTransaction.replace(R.id.Fragment_MyVideos, fragment);
// fragmentTransaction.commit();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment_Public_Jobs fragment = new Fragment_Public_Jobs();
fragmentTransaction.addToBackStack("xyz");
fragmentTransaction.hide(Fragment_Book_A_Cam.this);
fragmentTransaction.add(android.R.id.content, fragment);
fragmentTransaction.commit();
}
});
You never seem to use the Fragment_Jobs_BookACam FrameLayout id
If you want to show Fragments inside Fragments, you need to use the method to get the child FragmentManager
First of all correct the errors present in your xml file and try replace() method of fragmentTransaction instead add().

Replacing fragments on click of button android

I am trying to create a swappable fragements on my android app
Only half the part of fragment seems to be replacing
screenshot:
The xml file for the main is
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/app_bar_main"
tools:context=".MainActivity"
android:id="#+id/contentlayout">
<fragment
android:layout_width="match_parent"
android:layout_height="60dp"
android:id="#+id/header_menufragment"
class="com.example.www.newapp.header_menu" />
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/dynamicfragment"
class="com.example.www.newapp.mainfragment"/>
</LinearLayout>
the whole dynamicfragment is supposed to be replaced by projectfragment on click of Project button.
project.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
getFragmentManager()
.beginTransaction()
.replace(R.id.dynamicfragment, new projectfragment())
.addToBackStack(null)
.commit();
}
});
the projectfragment class has
public class projectfragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_project, container,false);
}
}
the layout file is
<?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"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:background="#color/colorDarkRed">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:layout_weight=".5">
<ImageButton
android:id="#+id/img1"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1" />
<ImageButton
android:id="#+id/img2"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1" />
</LinearLayout>
<ImageButton
android:id="#+id/img3"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:src="#drawable/imgfile"/>
</LinearLayout>
Kindly help me solve this issue.
You cannot replace a fragment defined statically in the layout file. You can only replace fragments that you added dynamically via a FragmentTransaction.
Use FrameLayout as container and replace Fragment inside that.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent" android:layout_height="match_parent">
<FrameLayout android:id="#+id/fragment_container" android:layout_weight="1"
android:layout_width="match_parent" android:layout_height="match_parent" />
</LinearLayout>
On Activity add Fragment same as you do:
getFragmentManager()
.beginTransaction()
.replace(R.id.fragment_container, new projectfragment())
.addToBackStack(null)
.commit();
For more info refer below link:
link1
link2
that worked for me try this way
WishaFriend ff = new WishaFriend();
android.app.FragmentManager fm = getActivity().getFragmentManager();
android.app.FragmentTransaction ft = fm.beginTransaction();
ft.replace(((ViewGroup) getView().getParent()).getId(), ff);
ft.commit();
dialog.dismiss();
try add this
ft.replace(((ViewGroup) getView().getParent()).getId(), ff);

Fragment doesnt show up

I am trying to make an activity containing two fragments.The first one has 3 nested fragments which I will use as a tabs and the second one only contains buttons. I don't want to add the buttons fragment into other fragments because I don't want it to reload. Right now i don't have any errors but my buttons fragment doesn't show up. Here are my fragments and my activity.
my main activity:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
setContentView(R.layout.activity_main);
Fragment statistics = new StatisticsFragment();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.add(R.id.fragment_statistics, statistics).commit();
Fragment buttons = new MainPageButtonsFragment();
FragmentTransaction buttonsTransaction = getSupportFragmentManager().beginTransaction();
buttonsTransaction.add(R.id.main_page_buttons_fragment,buttons).commit();
his layout
<RelativeLayout android:orientation="vertical" >
<FrameLayout
android:id="#+id/fragment_statistics"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#+id/main_page_buttons_fragment"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/fragment_statistics"/>
I wont write my buttons fragment because it is not necessary I will only say its root tag is FrameLayout.
my statistics fragment (the one with tabs)
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Fragment currentDayFragment = new CurrentDayFragment();
FragmentTransaction transaction1 = getChildFragmentManager().beginTransaction();
transaction1.add(R.id.current_day_fragment, currentDayFragment).commit();
Fragment configurationInfoFragment = new ConfigurationInfoFragment();
FragmentTransaction transaction2 = getChildFragmentManager().beginTransaction();
transaction2.add(R.id.configuration_info_fragment, configurationInfoFragment).commit();
Fragment expensesInfoFragment = new ExpensesInfoFragment();
FragmentTransaction transaction3 = getChildFragmentManager().beginTransaction();
transaction3.add(R.id.expenses_info_fragment, expensesInfoFragment).commit();
LayoutInflater lf = getActivity().getLayoutInflater();
View statisticsView = lf.inflate(R.layout.fragment_statistics, container, false);
return statisticsView;
}
his layout:
<FrameLayout >
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#id/current_day_fragment"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#id/configuration_info_fragment"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#id/expenses_info_fragment"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</android.support.v4.view.ViewPager>
the nested fragments just have root tag FrameLayout and couple of TextViews in it. The result is just an activity with 3 tabs and no buttons fragment.
I am new to android programming and I am completely lost in this. Help Please!
Try using giving custom height like this....
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<FrameLayout
android:id="#+id/fragment_statistics"
android:layout_width="fill_parent"
android:layout_height="250dp"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<FrameLayout
android:id="#+id/main_page_buttons_fragment"
android:layout_width="fill_parent"
android:layout_height="250dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true" />
</RelativeLayout>
Relative layout does not have android:orientation param
I thing first fragment cover second one
Change relative layout with LinearLayout
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/fragment_statistics"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#+id/main_page_buttons_fragment"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/fragment_statistics"/>
</LinearLayout>

Activity layout is still visible after adding fragment to the activity

This is a really lame question, but I really cannot figure out why it happens, so please help me out.
I have a simple activity and I add a fragment to it dynamically. The problem is that once the fragment is added to the activity, the activity layout is also visible. Why does this happen?
MainActivity.java
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btnLoad = (Button) findViewById(R.id.btn1);
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
HelloFragment hello = new HelloFragment();
fragmentTransaction.add(R.id.rootView, hello, "HELLO");
fragmentTransaction.commit();
}
};
btnLoad.setOnClickListener(listener);
}
}
activity_main.xml
<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" tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/rootView"
android:orientation="vertical">
<TextView
android:text="#string/hello_world"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="#+id/btn1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="OK"/>
</LinearLayout>
</LinearLayout>
HelloFragment.java
public class HelloFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
/** Inflating the layout for this fragment **/
View v = inflater.inflate(R.layout.hello_fragment_layout, null);
return v;
}
}
hello_fragment_layout.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">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="fragment 1"/>
</LinearLayout>
Convention is to have a FrameLayout that you use fragmentTransaction.replace()/add() on.
You shouldn't have views like TextView and Button in your MainActivity layout file. Instead, have those in another fragment and just have a FrameLayout in your MainActivity xml. Load the fragment with TextView/Button first, and call replace on button click with your new fragment.
Set a background color to your fragment linearLayout and make it clickable
The fragment is just another element on the layout. Adding it to the layout does not automatically remove other views. If you want the fragment to replace the content of rootView you need to remove rootview's children views first. Something like:
((LinearLayout)findViewById(R.id.rootView)).removeAllViews();
So your onClick method should look like this:
#Override
public void onClick(View v) {
((LinearLayout)findViewById(R.id.rootView)).removeAllViews();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
HelloFragment hello = new HelloFragment();
fragmentTransaction.add(R.id.rootView, hello, "HELLO");
fragmentTransaction.commit();
}
your rootview work as container for both fragment and your views on activity. check it and make separate view for fragment.
I know it's very late to answer this question but for those who are still looking do the following in your activity layout:
<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" tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:text="#string/hello_world"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="#+id/btn1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="OK"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/rootView"
android:orientation="vertical">
</RelativeLayout>
And fragment layout to following:
<?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:background="#color/white" <!--Add this-->
android:layout_height="match_parent">
<TextView
android:text="#string/hello_world"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="#+id/btn1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="OK"/>
</LinearLayout>
activity_main.xml
<FrameLayout 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" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/rootView"
android:orientation="vertical">
<TextView
android:text="#string/hello_world"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="#+id/btn1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="OK"/>
</LinearLayout>
<FrameLayout
android:id="#+id/fragmentContainer"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</FrameLayout>
</FrameLayout>
MainActivity.java
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
HelloFragment hello = new HelloFragment();
fragmentTransaction.add(R.id.fragmentContainer, hello, "HELLO");
fragmentTransaction.commit();
}
};
I have a solution for this to achieve what you can do is make two fragment one for textview and button your showing as default when activity is opened and another which you have already created as HelloFragment.
From Activity onCreate() method call the first fragment with default textview and button and from the click listener of that button call HelloFramgent.
Step1: Crate another fragment with any name MainFragment having a xml layout as follows:-
main_fragment_layout.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">
<TextView
android:text="#string/hello_world"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="#+id/btn1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="OK"/>
</LinearLayout>
MainFragment.java - Class
public class MainFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
/** Inflating the layout for this fragment **/
View v = inflater.inflate(R.layout.main_fragment_layout, container, false);
Button btnLoad = (Button) v.findViewById(R.id.btn1);
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View view) {
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
HelloFragment hello = new HelloFragment();
fragmentTransaction.add(R.id.rootView, hello, "HELLO");
fragmentTransaction.commit();
}
};
btnLoad.setOnClickListener(listener);
return v;
}
}
Step2: Call the MainFragment from activity onCreate() method
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
MainFragment mainFragment = new MainFragment();
fragmentTransaction.add(R.id.rootView, mainFragment, "MAIN_FRAGMENT");
fragmentTransaction.commit();
}
Build your user interface in Fragments (In most cases one Fragment equals one screen) and then use Activities to arrange and display those Fragments.
check this: click here to view detailed answer
You have two linear layouts, one inside another, so you need to do the following steps:
Set id to 1 linear layout rootView and next to the childview.
Find your child view:
View view = findViewById(R.id.child_view);
view.setVisibility(View.INVISIBLE);
Replace your rootView with your fragment:
getSupportFragmentManager().beginTransaction().add(R.id.rootview, new blankFragment())
.addToBackStack(null).commit();
Then override:
#override
public void onBackPressed() {
android.support.v4.app.FragmentManager fm = getSupportFragmentManager();
if (fm.getBackStackEntryCount() > 0) {
view.setVisibility(View.VISIBLE);
}
super.onBackPressed();
}
The Activity views are not being masked against the Fragment's views, so both appear. One solution is to load the fragment into a frame in the main activity's layout which has a slight elevation (2 dp). When the fragment is loaded its base elevation will cause it to always draw over the activity. Set the fragments parent container with a color to hide the activity views.
MasterActivity layout:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Activity Title"
android:layout_marginTop="10dp"
android:layout_marginBottom="20dp"
android:textSize="24sp" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/title"
android:layout_centerHorizontal="true"
android:textAllCaps="false"
android:text="Button1" />
<Button
android:id="#+id/button2"
android:textAllCaps="false"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/button1"
android:layout_centerHorizontal="true"
android:text="Button2" />
<!-- Fragment holder, with elevation -->
<FrameLayout
android:translationZ="2dp"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/fragHolder"
/>
The Fragment layout has a background color:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff"
android:layout_margin="10dp">
<TextView
android:id="#+id/title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Test Background Task"
android:textSize="24sp" />
</RelativeLayout>
Make your First Layout invisible while calling fragment and again while returning from fragment make your main view visible and remove fragment at that time so it will not conflict with each other it worked for really well just check it once

I want to replace fragment but its add after previous fragment

I want to replace fragment but android app add new fragment after first fragment instead of replace fragment. And after that when i try to replace again app replace with fragment which one is added after first fragment. First fragment which was loaded on activity, remain static. Can any body help? I am using this code to replace fragment.
Fragment fr = fragment;
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.frgRemote, fr);
ft.commit();
<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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.cerad.home.automation.RoomsActivity$PlaceholderFragment" >
<LinearLayout
android:id="#+id/lytHeader"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/lytCamcontroller"
android:orientation="vertical" >
<TextView
android:id="#+id/tvHeading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:textAppearance="?android:attr/textAppearanceMedium" />
<ImageView
android:id="#+id/stream_image"
android:layout_width="640px"
android:layout_height="480px"
android:layout_gravity="center_horizontal"
android:layout_margin="5dp"
android:background="#drawable/border"
android:contentDescription="#string/image_descriptor_video_streaming" />
<ScrollView
android:id="#id/lytCommandnControl"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<fragment
android:id="#+id/frgRemote"
android:name="com.cerad.automation.DefaultRemoteFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TableRow
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center" >
<Button
android:id="#+id/btnTVRemote"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/button_tv_remote" />
<Button
android:id="#+id/btnDefault"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:checked="true"
android:text="#string/button_default_control" />
<Button
android:id="#+id/btnACRemote"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/button_ac_remote" />
</TableRow>
</TableLayout>
</ScrollView>
</LinearLayout>
<ProgressBar
android:id="#+id/progressBar1"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
I have three fragments, i replace like this:
private void displayView(int position) {
Fragment fragment = null;
switch (position) {
case 0:
fragment = new HomeFragment();
break;
case 1:
fragment = new AlterFragment();
break;
case 2:
fragment = new ExtraFragment();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.frame_container, fragment).commit();
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
else {
}
}
You might want to re-read the documentation for FragmentTransaction.replace():
The first argument to replace(int containerViewId, Fragment fragment) is not the ID of the fragment's view, but the ID of the container of the fragment. Hence your call adds a new nested fragment (of the same type) inside the fragment view wrapper of the already existing fragment.
From FragmentTransaction.replace(id, frag, tag)'s documentation:
This is essentially the same as calling remove(Fragment) for all currently added fragments that were added with the same containerViewId and then add(int, Fragment, String) with the same arguments given here.
To fix this, you must give an ID to the LinearLayout containing your fragment, e.g.
<LinearLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
and call replace() with the ID of the container.
ft.replace(R.id.fragment_container, fr);
It is also good practice to always assign unique tags to pre-defined fragments:
<fragment
android:id="#+id/frgRemote"
android:name="com.cerad.automation.DefaultRemoteFragment"
android:tag="remote_fragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
So that you can address multiple fragments by their unique tags, if necessary
ft.replace(R.id.fragment_container, fr, "remote_fragment");

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