How to change in millisecond time to Date | Find difference between current date , future date and past date

Hii This tutorial is for how to change millisecond time to Date and also how to code a coupon Expiry and Expired date ....
Here is some   steps to do this example:-
Step 1:- Add new project Open android studio go File - New- New project.. now open activity_main.xml and write following code:-

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

<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"    

android:orientation="vertical"    

tools:context="com.example.supriyabharti.radiobuttonexmp.MainActivity">

<TextView        

android:layout_width="match_parent"        

android:layout_height="wrap_content"        

android:layout_margin="20dp"        

android:gravity="center"        

android:text="Find Date Day difference Example" />

<RadioGroup        

android:id="@+id/radioGroup"        

android:layout_width="match_parent"        

android:layout_height="wrap_content"        

android:weightSum="2"        

android:orientation="horizontal">
 <RadioButton           

 android:layout_width="wrap_content"           

android:layout_height="wrap_content"            

android:text="1518064675994"           

android:layout_weight="1"            

android:id="@+id/pastDate"/>
 <RadioButton            

android:layout_width="wrap_content"           

android:layout_height="wrap_content"            

android:text="1545676200000"            

android:layout_weight="1"            

android:id="@+id/futureDate"/>
    </RadioGroup>

<View        

android:layout_width="match_parent"        

android:layout_height="2dp"        

android:layout_marginTop="30dp"        

android:background="@color/inactive"/>
<LinearLayout        

android:layout_width="match_parent"        

android:layout_height="100dp"        

android:layout_margin="30dp"        

android:layout_marginTop="30dp"        

android:orientation="vertical">
<TextView            

android:layout_width="match_parent"            

android:layout_height="wrap_content"            

android:text="Fashion Coupon"            

android:textStyle="bold"            

android:gravity="center"/>
<TextView            

android:id="@+id/expireDate"            

android:layout_width="match_parent"            

android:layout_height="wrap_content"           

 android:text="Expire on"            

android:gravity="center"/>
<TextView            

android:id="@+id/expireDayLeft"            

android:layout_width="match_parent"            

android:layout_height="wrap_content"           

 android:text="Day Left"            

android:gravity="center"/>
    </LinearLayout>

</LinearLayout>

Step 2:-Open MainActivity.java class  and write following code:-

public class MainActivity extends AppCompatActivity {
    RadioButton pastDate,futureDate;
    RadioGroup radioGroup;
    TextView expireDate,expireDayLeft;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        pastDate=(RadioButton)findViewById(R.id.pastDate);
        futureDate=(RadioButton)findViewById(R.id.futureDate);
        radioGroup=(RadioGroup) findViewById(R.id.radioGroup);
        expireDate=(TextView) findViewById(R.id.expireDate);
        expireDayLeft=(TextView) findViewById(R.id.expireDayLeft);

        radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                switch (checkedId){
                    case R.id.pastDate:
                        long selectedDate=Long.parseLong(pastDate.getText().toString());
                        SetDataToView(selectedDate);
                        break;
                    case R.id.futureDate:
                        selectedDate=Long.parseLong(futureDate.getText().toString());
                        SetDataToView(selectedDate);
                        break;
                }
            }
        });
    }
    //method to change ui according to selection    

        public void SetDataToView(long selectedBtnId){
        long dateInMiliSecond=selectedBtnId;
        Date date1=new Date(dateInMiliSecond);
        Date date2=new Date(System.currentTimeMillis());
        long diffInDays=date1.getTime() - date2.getTime();
        int days = (int) Math.abs(TimeUnit.DAYS.convert(diffInDays, TimeUnit.MILLISECONDS));

        SimpleDateFormat simpleDateFormat=new SimpleDateFormat(" d "+"MMMM "+"yyyy");
        if(dateInMiliSecond>=System.currentTimeMillis()){
            expireDayLeft.setVisibility(View.VISIBLE);
            expireDate.setText("Expires on"+simpleDateFormat.format(dateInMiliSecond));
            expireDate.setTextColor(getResources().getColor(R.color.green));
            expireDayLeft.setText(days+" "+"days left");
            expireDayLeft.setTextColor(getResources().getColor(R.color.green));

        }else if(dateInMiliSecond< System.currentTimeMillis()){
            expireDate.setText("Expired on"+simpleDateFormat.format(dateInMiliSecond));
            expireDate.setTextColor(getResources().getColor(R.color.red));
            expireDayLeft.setVisibility(View.GONE);
        }

    }
}

Step 3:-Screen Shots are following:-

How to use RadioButton in android, How to set image and text dynamically on radio group, how to set text on radio using method, OnClickListener on RadioButton

Here i am giving one simple example that how to use radio button in android, OnClickListener on RadioButton | Dynamically set image and text to a radioGroup radioButton | How to set text on radio button by using method in android. Here are the following steps to do this:-

Step 1:- Add new project and open activity_main.xml file and write following code:-

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

<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"    

android:orientation="vertical"    

tools:context="com.example.supriyabharti.radiobuttonexmp.MainActivity">

    <TextView        

android:layout_width="match_parent"        

android:layout_height="wrap_content"        

android:layout_margin="20dp"        

android:gravity="center"        

android:text="Radio Group Example" />

    <RadioGroup        

android:id="@+id/radioGroup"        

android:layout_width="match_parent"        

android:layout_height="30dp"      

  android:orientation="horizontal"      

  android:weightSum="2">

        <RadioButton           

 android:id="@+id/radioChat"           

 android:layout_width="0dp"           

 android:layout_height="30dp"          

  android:layout_marginLeft="20dp"          

  android:layout_weight="1"           

 android:button="@null"            

android:drawableLeft="@mipmap/chatgrey"      

      android:drawablePadding="10dp"           

 android:text="Chat" />

        <RadioButton           

 android:id="@+id/radioVideo"          

  android:layout_width="0dp"           

 android:layout_height="30dp"            

android:layout_weight="1"            

android:button="@null"            

android:drawableLeft="@mipmap/videogrey"            

android:drawablePadding="10dp"            

android:text="video" />
    </RadioGroup>

    <Button        

android:id="@+id/button"        

android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:layout_gravity="center"       

 android:layout_marginTop="30dp"       

 android:background="@color/green"       

 android:padding="10dp"        

android:text="Set text using method" />

</LinearLayout>

Step 2:- colors.xml

<?xml version="1.0" encoding="utf-8"?><resources>
    <color name="green">#FF00AA64</color>
    <color name="inactive">#FF808A8F</color>
</resources>

Step 3:- MainActivity.java:-

public class MainActivity extends AppCompatActivity {
    RadioButton video,Chat;
    Button button;


    @Override    

        protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        video=(RadioButton)findViewById(R.id.radioVideo);
        Chat=(RadioButton)findViewById(R.id.radioChat);
        button=(Button)findViewById(R.id.button);

        //initially chat button will be activated so dynamically we will give activated image and color to the button        

        Chat.setCompoundDrawablesRelativeWithIntrinsicBounds(R.mipmap.chat_green,0,0,0);
        Chat.setText("ChatNow");
        Chat.setTextColor(getResources().getColor(R.color.green));
        Chat.setOnClickListener(new View.OnClickListener() {
            @Override            

                public void onClick(View v) {
                Chat.setCompoundDrawablesRelativeWithIntrinsicBounds(R.mipmap.chat_green,0,0,0);
                Chat.setText("ChatNow");
                Chat.setTextColor(getResources().getColor(R.color.green));

                //set inactive to other button..                

                video.setCompoundDrawablesRelativeWithIntrinsicBounds(R.mipmap.videogrey,0,0,0);
                video.setTextColor(getResources().getColor(R.color.inactive));
                video.setText("Video");
            }
        });

        //video click...        

           video.setOnClickListener(new View.OnClickListener() {
            @Override            

                public void onClick(View v) {
                video.setCompoundDrawablesRelativeWithIntrinsicBounds(R.mipmap.video_green,0,0,0);
                video.setText("VideoNow");
                video.setTextColor(getResources().getColor(R.color.green));

                //set remaning to inactive..                

                Chat.setCompoundDrawablesRelativeWithIntrinsicBounds(R.mipmap.chatgrey,0,0,0);
                Chat.setText("Chat");
                Chat.setTextColor(getResources().getColor(R.color.inactive));
            }
        });

        //button click listner...        

         button.setOnClickListener(new View.OnClickListener() {
            @Override            

                public void onClick(View v) {
                setText(getResources().getString(R.string.Rs)+"250","",Chat);
                setText(getResources().getString(R.string.Rs)+"350","",video);
            }
        });

    }

    //method to set text on radio button..    

private void setText(String text, String defaultText, View view) {
        if (view instanceof TextView) {
            TextView textView = (TextView) view;
            if (text != null && !text.isEmpty()) {
                textView.setText(text);
            } else {
                textView.setText(defaultText);
            }
        }
    }
}

Step 4:- string.xml:-

<resources>
    <string name="app_name">RadioButtonExmp</string>
    <string name="Rs">\u20B9</string>

</resources>
Step 5: ScreenShorts:-

RecyclerView Example with click on every row and view data in another class.

1. ModelClass:-

public class ModelClass {
    int image;
    String name,number;

    public ModelClass(int image, String name, String number) {
        this.image = image;
        this.name = name;
        this.number = number;
    }

    public int getImage() {
        return image;
    }

    public void setImage(int image) {
        this.image = image;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getNumber() {
        return number;
    }

    public void setNumber(String number) {
        this.number = number;
    }
}

2.AdapterClass.java

public class AdapterClass extends RecyclerView.Adapter<AdapterClass.MyViewHolder> {
    MainActivity mainActivity;
    ArrayList<ModelClass> modelClassArrayList;

    public AdapterClass(MainActivity mainActivity, ArrayList<ModelClass> modelClassArrayList) {
        this.mainActivity = mainActivity;
        this.modelClassArrayList = modelClassArrayList;
    }

    @Override   

 public AdapterClass.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view= LayoutInflater.from(parent.getContext()).inflate(R.layout.row_item,parent,false);
        MyViewHolder viewHolder=new MyViewHolder(view,modelClassArrayList,mainActivity);
        return viewHolder;
    }

    @Override    

public void onBindViewHolder(AdapterClass.MyViewHolder holder, int position) {
        holder.image.setImageResource(modelClassArrayList.get(position).getImage());
        holder.name.setText(modelClassArrayList.get(position).getName());
        holder.phone.setText(modelClassArrayList.get(position).getNumber());
    }

    @Override    

public int getItemCount() {
        return modelClassArrayList.size();
    }

    //another class...    

public class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
        ImageView image;
        TextView name,phone;
        ArrayList<ModelClass> modelClasses;
        MainActivity mainActivity;

        public MyViewHolder(View itemView,ArrayList<ModelClass> list,MainActivity mainActivity) {
            super(itemView);
            this.modelClasses=list;
            this.mainActivity=mainActivity;
            itemView.setOnClickListener(this);
            image=(ImageView)itemView.findViewById(R.id.image);
            name=(TextView)itemView.findViewById(R.id.name);
            phone=(TextView)itemView.findViewById(R.id.number);

        }

        @Override        

public void onClick(View v) {
            int position=getAdapterPosition();
            ModelClass modelClass=this.modelClasses.get(position);
            Intent intent=new Intent(mainActivity,DetailsClass.class);
            intent.putExtra("image",modelClass.getImage());
            intent.putExtra("name",modelClass.getName());
            intent.putExtra("phone",modelClass.getNumber());
            this.mainActivity.startActivity(intent);
        }
    }
}

3.row_item.xml

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

<LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    

android:layout_width="match_parent"    

android:orientation="horizontal"    

android:layout_margin="20dp"    

android:gravity="center"    

android:layout_height="wrap_content">
    <ImageView        

android:layout_width="70dp"        

android:layout_height="70dp"        

android:layout_weight="1"        

android:id="@+id/image"/>
    <TextView        

android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:layout_weight="1"        

android:id="@+id/name"/>
    <TextView        android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:layout_weight="1"        

android:id="@+id/number"/>

</LinearLayout>

2.activity_main.xml

<?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:layout_width="match_parent"    

android:layout_height="match_parent"    

tools:context="com.example.supriyabharti.recylerviewclickitem.MainActivity">

    <android.support.v7.widget.RecyclerView        

android:layout_width="match_parent"        

android:layout_height="match_parent"        

android:id="@+id/recycler">

</android.support.v7.widget.RecyclerView>

</LinearLayout>

4.MainActivity.java

public class MainActivity extends AppCompatActivity {
    private RecyclerView recycler;
    RecyclerView.LayoutManager manager;
    AdapterClass adapterClass;
    int[] imageList={R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher};
    String[] strName={"Supriya","Navin","Ankit","Saurabh","Pankaj","Pappu"};
    String[] strPhone={"+91333222","91333222","91333222","91333222","91333222","91333222"};
    ArrayList<ModelClass> list=new ArrayList<ModelClass>();
    ModelClass modelClass;

    @Override    

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        recycler=(RecyclerView)findViewById(R.id.recycler);

        int i=0;
        for(String s:strName){
            modelClass =new ModelClass(imageList[i],strName[i],strPhone[i]);
            list.add(modelClass);
            i++;
        }

        manager=new LinearLayoutManager(this);
        adapterClass=new AdapterClass(MainActivity.this,list);
        recycler.setHasFixedSize(true);
        recycler.setLayoutManager(manager);
        recycler.setAdapter(adapterClass);

    }
}

5.DetailClass.java

public class DetailsClass extends AppCompatActivity {
    ImageView imageView;
    TextView name,number;
    @Override    

protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.details);
        imageView=(ImageView)findViewById(R.id.image);
        name=(TextView) findViewById(R.id.name);
        number=(TextView) findViewById(R.id.number);
               

imageView.setImageResource(getIntent().getIntExtra("image",1));
        name.setText(getIntent().getStringExtra("name"));
        number.setText(getIntent().getStringExtra("phone"));
    }
}

6.details.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:gravity="center"    

android:layout_height="match_parent">
    <ImageView        

android:layout_width="70dp"        

android:layout_height="70dp"        

android:id="@+id/image"/>
    <TextView       

 android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:id="@+id/name"/>
    <TextView        

android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:id="@+id/number"/>

</LinearLayout>

7.screenShots:

RecyclerView Example | How to use RecyclerView to show the data using Model Class in Android

Hii All.. this example is how to use RecyclerView in android studio.Here we will use Model class with setter and getter of all inputs. For this create new Project.

Step 1:-Create a model class inside your package where MainActivity class is there.Here we will show image,name and phone number.So model will be like following :-

public class ModelClass {
    int image;
    String name;
    String phpneNo;
    public ModelClass(int image, String name, String phpneNo) {
        this.image = image;
        this.name = name;
        this.phpneNo = phpneNo;
    }

    public int getImage() {
        return image;
    }

    public void setImage(int image) {
        this.image = image;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPhpneNo() {
        return phpneNo;
    }

    public void setPhpneNo(String phpneNo) {
        this.phpneNo = phpneNo;
    }
}

Step 2:-Create another Adapter class to add each row with data.

public class AdapterClass extends RecyclerView.Adapter<AdapterClass.MyViewolder> {
    ArrayList<ModelClass> modelClassList;
    MainActivity mainActivity;

    public AdapterClass(ArrayList<ModelClass> modelClassList, MainActivity mainActivity) {
        this.modelClassList = modelClassList;
        this.mainActivity = mainActivity;
    }

    //this is for adding view..    

@Override    

public AdapterClass.MyViewolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view= LayoutInflater.from(parent.getContext()).inflate(R.layout.row_item,parent,false);
        MyViewolder viewolder=new MyViewolder(mainActivity,modelClassList,view);
        return viewolder;
    }

    @Override    

public void onBindViewHolder(AdapterClass.MyViewolder holder, int position) {
        ModelClass modelClass=modelClassList.get(position);
        holder.img.setImageResource(modelClass.getImage());
        holder.name.setText(modelClass.getName());
        holder.phone.setText(modelClass.getPhpneNo());

    }

    @Override    

public int getItemCount() {
        return modelClassList.size();
    }

    //class for view holding the view..
    public class MyViewolder extends RecyclerView.ViewHolder{
        ImageView img;
        TextView name,phone;
        ArrayList<ModelClass> list;
        Context c;

        public MyViewolder(Context ctx,ArrayList<ModelClass> list,View itemView) {
            super(itemView);
            this.list=list;
            this.c=ctx;
            img=(ImageView)itemView.findViewById(R.id.image);
            name=(TextView)itemView.findViewById(R.id.name);
            phone=(TextView)itemView.findViewById(R.id.phone);

        }
    }
}

Step 3-row_item.xml :-

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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    

android:layout_width="match_parent"    

android:layout_height="wrap_content"    

android:orientation="vertical">

    <LinearLayout        

android:layout_width="match_parent"        

android:layout_height="wrap_content"        

android:orientation="horizontal"        

android:weightSum="2">

        <ImageView            

android:id="@+id/image"            

android:layout_width="50dp"            

android:layout_height="70dp"            

android:layout_weight="1"            

android:paddingRight="20dp" />

        <LinearLayout            

android:layout_width="wrap_content"            

android:layout_height="wrap_content"            

android:layout_weight="1"            

android:layout_gravity="center"            

android:orientation="vertical">

            <TextView                

android:id="@+id/name"                

android:layout_width="wrap_content"                

android:layout_height="wrap_content"                

android:text="Name" />

            <TextView                

android:id="@+id/phone"                

android:layout_width="wrap_content"                

android:layout_height="wrap_content"                

android:text="+9876567" />
        </LinearLayout>
    </LinearLayout>
    <View       

 android:layout_width="match_parent"        

android:layout_height="1dp"        

android:background="@color/colorPrimaryDark"></View>

</LinearLayout>

Step 4:- main_activity.xml:-

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

<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"    

android:orientation="vertical">
<android.support.v7.widget.RecyclerView    

android:layout_width="match_parent"    

android:layout_height="match_parent"   

 android:id="@+id/recycler"></android.support.v7.widget.RecyclerView>
</LinearLayout>

Step 5:-MainActivity.java:-

public class MainActivity extends AppCompatActivity {
    RecyclerView mRrecycler;
    int[] imageStr={R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher};
    String[] strName={"Supriya","Navin","Saurabh","Ankit","manju","Rahul","Radha"};
    String[] strNumber={"+91111111","+911111112","+911111113","+911111114","+911111115","+911111116","+91111117"};
    ArrayList<ModelClass> arrayList=new ArrayList<ModelClass>();
    RecyclerView.LayoutManager manager;
    AdapterClass adapterClass;

    @Override    

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mRrecycler=(RecyclerView)findViewById(R.id.recycler);

        //add data to the model class.        

int i=0;
        for(String s:strName){
            ModelClass modelClass=new ModelClass(imageStr[i],strName[i],strNumber[i]);
            arrayList.add(modelClass);
            i++;
        }
        manager=new LinearLayoutManager(this);
        mRrecycler.setLayoutManager(manager);
        adapterClass=new AdapterClass(arrayList,this);
        mRrecycler.setAdapter(adapterClass);
        mRrecycler.setHasFixedSize(true);
    }
}

Step 6:- Screen Shorts:-