Android Studio SwipeView Pager Adapter

In this Android Studio article iam going to show you creating SwipeView Pager Adapter.

So for good explanation you can watch the video for this article.

Also check my Android Development Courses

So now lets get started !

1: First of all create a new project in your Android Studio, and choose Empty Activity

also iam using API 20 for this project

2: In the second step you need to create Fragment and call it MyFragment.

3: OK now you need to create a FragmentAdapter.java class

so this is the code for FragmentAdapter.java class.

package com.forogh.parwiz.swipewithviewpager;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

public class FragmentAdapter extends FragmentStatePagerAdapter {
    public FragmentAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int i) {

        MyFragment fragment = new MyFragment();
        Bundle bundle = new Bundle();
        i = i + 1;
        bundle.putString("MESSAGE", "Message From Page : " + i );
        fragment.setArguments(bundle);


        return fragment;
    }

    @Override
    public int getCount() {
        return 50;
    }
}

package com.forogh.parwiz.swipewithviewpager;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentStatePagerAdapter;

public class FragmentAdapter extends FragmentStatePagerAdapter {

public FragmentAdapter(FragmentManager fm) {

super(fm);

}

@Override

public Fragment getItem(int i) {

MyFragment fragment = new MyFragment();

Bundle bundle = new Bundle();

i = i + 1;

bundle.putString("MESSAGE", "Message From Page : " + i );

fragment.setArguments(bundle);

return fragment;

}

@Override

public int getCount() {

return 50;

}

OK at the code you can see that we have extended our class from FragmentStatePagerAdapter, after extend

you need to implement some methods, the first one is getItem(), this is the place that we are going to get the items

and also we send a bundle data to our fragment.

also the second method is getCount(), and we are going to create 50 fragment for this project .

So now in the layout folder open your activity_main.xml file, and add a ViewPager in that file.

after adding the file will looks like this.

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
    tools:context=".MainActivity">

   <android.support.v4.view.ViewPager
       android:layout_width="match_parent"
       android:layout_height="match_parent"

       android:id="@+id/viewpager"
       ></android.support.v4.view.ViewPager>

</android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout 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"

tools:context=".MainActivity">

<android.support.v4.view.ViewPager

android:layout_width="match_parent"

android:layout_height="match_parent"

android:id="@+id/viewpager"

></android.support.v4.view.ViewPager>

</android.support.constraint.ConstraintLayout>

And in our fragment_my.xml we are going to just add a TextView.

<?xml version="1.0" encoding="utf-8"?>
<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=".MyFragment">


    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World"
        android:textSize="30sp"
        android:textColor="@color/colorPrimary"
        android:textStyle="bold"
        android:layout_margin="100dp"
        />
</FrameLayout>

<?xml version="1.0" encoding="utf-8"?>

<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=".MyFragment">

<TextView

android:id="@+id/textView"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Hello World"

android:textSize="30sp"

android:textColor="@color/colorPrimary"

android:textStyle="bold"

android:layout_margin="100dp"

</FrameLayout>

So now open MyFragment.java file and we need to extend the class from Fragment.

and also in CreateView method we need to inflate our layout.

package com.forogh.parwiz.swipewithviewpager;


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;


/**
 * A simple {@link Fragment} subclass.
 */
public class MyFragment extends Fragment {

    TextView textView;


    public MyFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view =  inflater.inflate(R.layout.fragment_my, container, false);
        textView = view.findViewById(R.id.textView);

        String message = getArguments().getString("MESSAGE");
        textView.setText(message);

        return view;
    }

}

package com.forogh.parwiz.swipewithviewpager;

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;

/**

* A simple {@link Fragment} subclass.

public class MyFragment extends Fragment {

TextView textView;

public MyFragment() {

// Required empty public constructor

}

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

// Inflate the layout for this fragment

View view = inflater.inflate(R.layout.fragment_my, container, false);

textView = view.findViewById(R.id.textView);

String message = getArguments().getString("MESSAGE");

textView.setText(message);

return view;

}

At the end you need to open your main_activity.java and create the object of FragmentAdaper and also

find the id of viewpager, this is the code for our this java file.

package com.forogh.parwiz.swipewithviewpager;

import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    ViewPager viewPager;
    FragmentAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        viewPager = findViewById(R.id.viewpager);
        adapter = new FragmentAdapter(getSupportFragmentManager());
        viewPager.setAdapter(adapter);
    }
}

package com.forogh.parwiz.swipewithviewpager;

import android.support.v4.view.ViewPager;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

ViewPager viewPager;

FragmentAdapter adapter;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

viewPager = findViewById(R.id.viewpager);

adapter = new FragmentAdapter(getSupportFragmentManager());

viewPager.setAdapter(adapter);

}

Run the complete project and swipe the view this will be the result

Also you can watch the complete video for this article

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