Thursday 20 August 2020

how to create slider using android studio simple example

 how to create slider using android studio simple example

View Video: https://youtu.be/LUnA4JzQ_RE

Activity_main.xml

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


<androidx.viewpager.widget.ViewPager

android:id="@+id/view_pager"


android:layout_width="match_parent"

android:layout_height="match_parent"
android:background="@color/colorPrimary" />

<LinearLayout


android:id="@+id/layoutDots"


android:layout_width="match_parent"


android:layout_height="@dimen/dots_height"


android:layout_alignParentBottom="true"


android:layout_marginBottom="@dimen/dots_margin_bottom"


android:gravity="center"


android:orientation="horizontal"></LinearLayout>

<View


android:layout_width="match_parent"


android:layout_height="1dp"


android:layout_above="@id/layoutDots"


android:alpha=".20"


android:background="@android:color/white" />


<Button


android:id="@+id/btn_next"


android:layout_width="wrap_content"


android:layout_height="wrap_content"


android:layout_alignParentRight="true"


android:layout_alignParentBottom="true"


android:background="@null"


android:text="Next"


android:textColor="@android:color/white" />


<Button


android:id="@+id/btn_skip"


android:layout_width="wrap_content"


android:layout_height="wrap_content"


android:layout_alignParentLeft="true"


android:layout_alignParentBottom="true"


android:background="@null"


android:text="skip"


android:textColor="@android:color/white" />
</RelativeLayout>


MainActivity.java

package com.example.slider;

import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.ViewPager;

import android.os.Bundle;
import android.text.Html;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

ViewPager viewPager;
MyViewPagerAdapter myViewPagerAdapter;
LinearLayout linearLayout;
TextView[] dots;
static int[] dotalayout;
Button btnSkip,btnNext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager=(ViewPager)findViewById(R.id.view_pager);
linearLayout=(LinearLayout)findViewById(R.id.layoutDots);
btnNext=(Button)findViewById(R.id.btn_next);
btnSkip=(Button)findViewById(R.id.btn_skip);

dotalayout=new int[]{
R.layout.screen1,R.layout.screen2,R.layout.screen3,R.layout.screen4
};
addbtn(0);
myViewPagerAdapter=new MyViewPagerAdapter(MainActivity.this);
viewPager.setAdapter(myViewPagerAdapter);
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

}

@Override
public void onPageSelected(int position) {
addbtn(position);
if (position== dotalayout.length)
{
btnNext.setText("Start");
btnSkip.setVisibility(View.GONE);
}
else
{
btnNext.setText("NEXT");
btnSkip.setVisibility(View.VISIBLE);
}

}

@Override
public void onPageScrollStateChanged(int state) {

}
});
}
public void addbtn(int CurrentPage)
{
dots=new TextView[dotalayout.length];
int [] colorActive=getResources().getIntArray(R.array.array_dot_active);
int [] colorInActive=getResources().getIntArray(R.array.array_dot_inactive);
linearLayout.removeAllViews();
for(int i=0;i< dots.length;i++)
{
dots[i]=new TextView(this);
dots[i].setText(Html.fromHtml("&#8226;"));
dots[i].setTextSize(35);
dots[i].setTextColor(colorInActive[CurrentPage]);
linearLayout.addView(dots[i]);
}
if(dots.length>0)
{
dots[CurrentPage].setTextColor(colorActive[CurrentPage]);
}
}
}

MyViewpageAdapter.java

package com.example.slider;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import androidx.annotation.NonNull;
import androidx.viewpager.widget.PagerAdapter;

import static com.example.slider.MainActivity.dotalayout;

public class MyViewPagerAdapter extends PagerAdapter {
Context cx;
LayoutInflater layoutInflater;

public MyViewPagerAdapter(Context context) {
cx = context;
}

@Override
public int getCount() {
return dotalayout.length;
}

@NonNull
@Override
public Object instantiateItem(@NonNull ViewGroup container, int position) {

layoutInflater = (LayoutInflater) cx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(dotalayout[position], container, false);
container.addView(view);
return view;
}

@Override
public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
return view == object;
}

@Override
public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
View view=(View) object;
container.removeView(view);
}
}

layout/screen1.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/bg_screen1">

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

android:gravity="center_horizontal"

android:orientation="vertical">

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginBottom="50dp"

android:text="WELCOME"
android:textColor="@android:color/background_dark"

android:textSize="@dimen/slide_title"

android:textStyle="bold" />

<ImageView

android:layout_width="@dimen/img_width_height"


android:layout_height="@dimen/img_width_height"

android:src="@drawable/avadh" />

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="20dp"
android:text="AVADH TUTOR"

android:textColor="@android:color/holo_red_dark"

android:textSize="@dimen/slide_title"

android:textStyle="bold" />


</LinearLayout>

</RelativeLayout>


layout/screen2.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/bg_screen2">

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

android:gravity="center_horizontal"

android:orientation="vertical">

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginBottom="50dp"

android:text="All Languages"
android:textColor="@android:color/background_dark"

android:textSize="@dimen/slide_title"

android:textStyle="bold" />

<ImageView

android:layout_width="@dimen/img_width_height"


android:layout_height="@dimen/img_width_height"

android:src="@drawable/program" />

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="20dp"
android:text="Please Like and Share"

android:textColor="@android:color/holo_red_dark"

android:textSize="@dimen/slide_title"
android:textStyle="bold" />


</LinearLayout>

</RelativeLayout>

layout/screen3.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/bg_screen3">
<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

android:gravity="center_horizontal"

android:orientation="vertical">

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginBottom="50dp"

android:text="WELCOME"
android:textColor="@android:color/background_dark"

android:textSize="@dimen/slide_title"

android:textStyle="bold" />

<ImageView
android:layout_width="@dimen/img_width_height"


android:layout_height="@dimen/img_width_height"

android:src="@drawable/blog" />

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="20dp"
android:text="Look Our Blog"

android:textColor="@android:color/holo_red_dark"

android:textSize="@dimen/slide_title"

android:textStyle="bold" />


</LinearLayout>


</RelativeLayout>

layout/screen4.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/bg_screen4">

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

android:gravity="center_horizontal"

android:orientation="vertical">

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginBottom="50dp"

android:text="AVADH TUTOR"
android:textColor="@android:color/background_dark"

android:textSize="@dimen/slide_title"

android:textStyle="bold" />

<ImageView

android:layout_width="@dimen/img_width_height"


android:layout_height="@dimen/img_width_height"

android:src="@drawable/subscribe" />

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="20dp"
android:text="Lets Start"

android:textColor="@android:color/holo_red_dark"

android:textSize="@dimen/slide_title"

android:textStyle="bold" />


</LinearLayout>


</RelativeLayout>

values/ colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="colorPrimary">#6200EE</color>
<color name="colorPrimaryDark">#3700B3</color>
<color name="colorAccent">#03DAC5</color>

<color name="bg_screen1">#BDB883</color>
<color name="bg_screen2">#AAE6E1</color>
<color name="bg_screen3">#F4DDB9</color>
<color name="bg_screen4">#CAECA3</color>
<array name="array_dot_active">
<item>#F0E9A9</item>
<item>#ABEEE5</item>
<item>#F1C98D</item>
<item>#D4F1B1</item>
</array>
<array name="array_dot_inactive">
<item>#DFC90B</item>
<item>#0C917E</item>
<item>#BE7A15</item>
<item>#619C1D</item>
</array>
</resources>


Save Your Images inside drawable folder


View Video : https://youtu.be/LUnA4JzQ_RE



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