Monday, 15 July 2019

Android Material Collapsing Toolbar Layout # Part 2



1) activity_main.xml


<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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.design.widget.AppBarLayout
        android:id="@+id/appBar"
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.design.widget.CollapsingToolbarLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_scrollFlags="exitUntilCollapsed|scroll"
            app:contentScrim="?attr/colorPrimary"
            app:title="Toolbar Title"
            app:expandedTitleMarginStart="48dp"
            app:expandedTitleMarginEnd="64dp"
            android:background="@drawable/toolbar">


            <android.support.v7.widget.Toolbar
                android:layout_width="match_parent"
                android:layout_height="?actionBarSize"
                app:layout_collapseMode="pin"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>


    <android.support.v4.widget.NestedScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerview"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>


    </android.support.v4.widget.NestedScrollView>

</android.support.design.widget.CoordinatorLayout>


2) Create card_layout.cml file on res/layout folder


<?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"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/card_layout"
    android:orientation="vertical">

    <!--Todo: CardView-->

    <android.support.v7.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:cardCornerRadius="12dp"
        app:cardElevation="6dp"
        app:cardMaxElevation="6dp"
        app:contentPadding="25dp"
        app:cardBackgroundColor="@android:color/white"
        android:layout_margin="10dp"
        >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <ImageView
                android:layout_width="match_parent"
                android:layout_height="100dp"
                android:id="@+id/card_img"
                android:padding="10dp"
                android:src="@drawable/home_icon"/>

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:id="@+id/card_title"
                android:text="Category Name"
                android:textSize="18dp"
                android:textColor="@android:color/black"
                android:textStyle="bold"/>

        </LinearLayout>



    </android.support.v7.widget.CardView>
</LinearLayout>


3) Create Cards.java class file and past this code


public class Cards {

    Integer Img;
    String category;

    public Cards(Integer img, String category) {
        Img = img;
        this.category = category;
    }

    public Integer getImg() {
        return Img;
    }

    public String getCategory() {
        return category;
    }
}


4) Create CardsAdapter.java class file and past this code


/*Todo: Recyclerview Adapter*/
public class CardsAdapter extends RecyclerView.Adapter<CardsAdapter.ViewHolder>
{

    /*Todo: Recyclerview Adapter class*/
    List<Cards> list;
    Context context;

    public CardsAdapter(List<Cards> list, Context context) {
        this.list = list;
        this.context = context;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_layout, parent, false);

        final ViewHolder viewHolder = new ViewHolder(view);

        /*Todo: adding Click Events Of Each Menu On Dashboard by title*/
        
        viewHolder.card_layout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Toast.makeText(context, list.get(viewHolder.getAdapterPosition()).getCategory(), Toast.LENGTH_SHORT).show();
            }
        });

        return viewHolder;
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Cards Cards = list.get(position);
        final int img = Cards.getImg();
        final String categiry = Cards.getCategory();

        holder.card_img.setImageResource(img);
        holder.card_title.setText(categiry);

    }

    @Override
    public int getItemCount() {
        return list.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder{

        ImageView card_img;
        TextView card_title;
        LinearLayout card_layout;
        public ViewHolder(View itemView) {
            super(itemView);

            card_img = (ImageView)itemView.findViewById(R.id.card_img);
            card_title = (TextView) itemView.findViewById(R.id.card_title);
            card_layout = (LinearLayout) itemView.findViewById(R.id.card_layout);

        }
    }
}

5) MainActivity.java


import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private RecyclerView recyclerView;
    private RecyclerView.Adapter adapter;
    private List<Cards> Cardss;
    private RecyclerView.LayoutManager mLayoutManager;

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

        recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
        recyclerView.setHasFixedSize(true);
        mLayoutManager = new GridLayoutManager(MainActivity.this,2);
        recyclerView.setLayoutManager(mLayoutManager);
        Cardss = new ArrayList<>();
        loaddata();

    }
    private void loaddata()
    {

        String[] nameArray = {
                "Home",
                "Taxi",
                "Boat",
                "Train",
                "Navigation",
                "Stop"
        };

        int[] drawableArray = {
                R.drawable.home_icon,
                R.drawable.taxi_icon,
                R.drawable.boat_icon,
                R.drawable.train_icon,
                R.drawable.navigation_icon,
                R.drawable.stop_icon
        };

        for (int i = 0; i < nameArray.length; i++) {
            Cardss.add(new Cards(
                    drawableArray[i],
                    nameArray[i]
            ));
        }

        adapter = new CardsAdapter(Cardss, MainActivity.this);
        recyclerView.setAdapter(adapter);
    }

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