Android Working with Fragments Part Two
If you are not Familiar with Fragments please check my Android Working with Fragment post.
In this post, I will be describe working with fragments using a Container layout i.e having a container, and replacing the fragments in the container according to user actions. In brief, we will have one fragment in the container at a time when user clicks on the button we replace the current fragment with the required fragment.
So,Let’s Start:-
- First we will create a Fragment layout containing textview and Fragment to recieve the argument and set to Textview.
- Then we will create another Fragment using the same layout as to describe we can use the Required Fragment.
- Then we will create a Activity layout containing FrameLayout which will act as a Container and four buttons on which click we will replace the fragments in the container.
Fragment layout as fragment_container.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:textSize="40px"
android:text="FirstFragment"
android:layout_centerInParent="true"
android:id="@+id/titlename"/>
</RelativeLayout>
ContainerFragment
package com.coderzpassion.fragmentssample;
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.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
/**
* Created by coderzpassion on 13/06/16.
*/
public class ContainerFragment extends Fragment {
String maintitle="";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
maintitle=getArguments().getString("title");
}
@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState) {
View view =inflater.inflate(R.layout.fragment_container, container, false);
TextView title=(TextView)view.findViewById(R.id.titlename);
title.setText(maintitle);
return view;
}
}
ContainerTwoFragment
package com.coderzpassion.fragmentssample;
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;
/**
* Created by coderzpassion on 21/06/16.
*/
public class ContainerTwoFragment extends Fragment {
String maintitle="";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
maintitle=getArguments().getString("title");
}
@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState) {
View view =inflater.inflate(R.layout.fragment_container, container, false);
TextView title=(TextView)view.findViewById(R.id.titlename);
title.setText(maintitle);
return view;
}
}
Activity layout as activity_container
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:weightSum="4">
<Button
android:id="@+id/first"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="First"/>
<Button
android:id="@+id/second"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Second"/>
<Button
android:id="@+id/third"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="third"/>
<Button
android:id="@+id/fourth"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Fourth"/>
</LinearLayout>
</RelativeLayout>
FragmentContainerActivity
package com.coderzpassion.fragmentssample;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.view.View;
import android.widget.Button;
/**
* Created by coderzpassion on 13/06/16.
*/
public class FragmentContainerActivity extends FragmentActivity implements View.OnClickListener{
Button first,second,third,fourth;
Fragment fragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_container);
first=(Button)findViewById(R.id.first);
second=(Button)findViewById(R.id.second);
third=(Button)findViewById(R.id.third);
fourth=(Button)findViewById(R.id.fourth);
first.setOnClickListener(this);
second.setOnClickListener(this);
third.setOnClickListener(this);
fourth.setOnClickListener(this);
//this fragment will be called first when application runs
ContainerFragment fragment1=new ContainerFragment();
Bundle b=new Bundle();
b.putString("title", "Welcome To Fragment Tutorials! CoderzPassion Click on Buttons To Replace Current fragment in Container");
fragment1.setArguments(b);
if (fragment1 != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment1).commit();
}
}
//on click of buttons
@Override
public void onClick(View v) {
switch (v.getId())
{
case R.id.first:
fragment=new ContainerFragment();
Bundle b=new Bundle();
b.putString("title","first");
fragment.setArguments(b);
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
}
break;
case R.id.second:
fragment=new ContainerFragment();
Bundle b1=new Bundle();
b1.putString("title","second");
fragment.setArguments(b1);
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
}
break;
case R.id.third:
fragment=new ContainerTwoFragment();
Bundle b2=new Bundle();
b2.putString("title","third");
fragment.setArguments(b2);
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
}
break;
case R.id.fourth:
fragment=new ContainerTwoFragment();
Bundle b3=new Bundle();
b3.putString("title","fourth");
fragment.setArguments(b3);
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
}
break;
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.coderzpassion.fragmentssample" >
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity android:name=".FragmentContainerActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Output
