BCA PROGRAM SOLUTION

Understanding of UI :
i. Create an UI such that , one screen have list of all the types of cars.
ii. On selecting of any car name, next screen should show Car details like: name , launched date ,company name, images(using gallery) if available, show different colors in which it is available.

MainActivity.java

package com.example.assignment11;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.ListView;

public class MainActivity extends AppCompatActivity implements OnItemClickListener {

String car_name[]={"Maruti","Hundai","Honda"};

ListView lv;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

lv=(ListView) findViewById(R.id.list);

ArrayAdapter<String> arr=new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,car_name);

lv.setAdapter(arr);

lv.setOnItemClickListener(this);

}

@Override

public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {

Intent inte=new Intent(this,DetailActivity.class);

inte.putExtra("flag",pos);

this.startActivity(inte);

}

activity_main.xml

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

<AbsoluteLayout 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:background="#FFFFFF"

tools:context=".MainActivity">

<ListView

android:id="@+id/list"

android:layout_width="match_parent"

android:layout_height="494dp"

android:layout_x="2dp"

android:layout_y="72dp"

android:background="#FFFFFF" />

<TextView

android:id="@+id/textView1"

android:layout_width="match_parent"

android:layout_height="68dp"

android:layout_x="-2dp"

android:layout_y="4dp"

android:background="#FFFFFF"

android:gravity="center"

android:text="CARS LIST"

android:textAppearance="@style/TextAppearance.AppCompat.Display1"

android:textColor="#090909" />

</AbsoluteLayout>

DetailActivity.java

package com.example.assignment11;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.Button;

import android.widget.Gallery;

import android.widget.ImageView;

import android.widget.TextView;

public class DetailActivity extends AppCompatActivity implements OnClickListener, OnItemClickListener {

int flag;

Gallery gv;

TextView lblname,lbldate,lblprice,lblcompany,lblcname,lblcl,lblprice1;

Button btnback;

ImageView img;

Integer hundai[]={R.drawable.a,R.drawable.b,R.drawable.v,R.drawable.r,R.drawable.s,R.drawable.t};

Integer maruti[]={R.drawable.c,R.drawable.d,R.drawable.e,R.drawable.f,R.drawable.g,R.drawable.h};

Integer honda[]={R.drawable.k,R.drawable.l,R.drawable.m,R.drawable.n,R.drawable.o,R.drawable.p};

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_detail);

gv=(Gallery) findViewById(R.id.gallary);

lblname=(TextView) findViewById(R.id.lblname);

lbldate=(TextView) findViewById(R.id.lbldate);

lblprice=(TextView) findViewById(R.id.lblprice);

lblcompany=(TextView) findViewById(R.id.lblcompany);

lblcname=(TextView) findViewById(R.id.lblcname);

lblcl=(TextView) findViewById(R.id.lblcl);

lblprice1=(TextView) findViewById(R.id.lblprice1);

btnback=(Button) findViewById(R.id.btnback);

img=(ImageView) findViewById(R.id.img);

btnback.setOnClickListener(this);

btnback.setVisibility(-1);

img.setVisibility(-1);

Intent inte=getIntent();

flag=inte.getIntExtra("flag", 0);

if(flag==0)

{

lblcompany.setText("MARUTI");

lblname.setText("Alto 800");

lbldate.setText("23-03-2019");

lblprice.setText("INR 3.5 Lakh to INR 5.5 Lakh");

}

else if(flag==1)

{

lblcompany.setText("HUNDAI");

lblname.setText("i20");

lbldate.setText("11-08-2014");

lblprice.setText("INR 5.59 to INR 9.2 Lakh");

}

else if(flag==2)

{

lblcompany.setText("HONDA");

lblname.setText("Honda City");

lbldate.setText("23-06-2012");

lblprice.setText("INR 9.91 to INR14.31 lakh");

}

gv.setAdapter(new ImageAdapter(this,flag));

gv.setOnItemClickListener(this);

}

@Override

public void onClick(View v) {

visible();

}

private void visible() {

lblcname.setVisibility(0);

lblcl.setVisibility(0);

lblprice1.setVisibility(0);

lblprice.setVisibility(0);

lblname.setVisibility(0);

lbldate.setVisibility(0);

gv.setVisibility(0);

btnback.setVisibility(-1);

img.setVisibility(-1);

}

@Override

public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {

invisible();

if(flag==0)

img.setImageResource(maruti[pos]);

else if(flag==1)

img.setImageResource(hundai[pos]);

else if(flag==2)

img.setImageResource(honda[pos]);

}

private void invisible() {

lblcname.setVisibility(-1);

lblcl.setVisibility(-1);

lblprice1.setVisibility(-1);

lblprice.setVisibility(-1);

lblname.setVisibility(-1);

lbldate.setVisibility(-1);

gv.setVisibility(-1);

btnback.setVisibility(0);

img.setVisibility(0);

}

activity_detail.xml

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

<AbsoluteLayout 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:background="#090909"

tools:context=".DetailActivity">

<Gallery

android:id="@+id/gallary"

android:layout_width="328dp"

android:layout_height="222dp"

android:layout_x="36dp"

android:layout_y="254dp" />

<TextView

android:id="@+id/lblcompany"

android:layout_width="match_parent"

android:layout_height="42dp"

android:layout_x="-5dp"

android:layout_y="0dp"

android:gravity="center"

android:textAppearance="?android:attr/textAppearanceLarge"

android:textColor="#FBFBFB" />

<TextView

android:id="@+id/lblcname"

android:layout_width="104dp"

android:layout_height="44dp"

android:layout_x="0dp"

android:layout_y="66dp"

android:text="Name :"

android:textAppearance="?android:attr/textAppearanceLarge"

android:textColor="#FFFFFF" />

<TextView

android:id="@+id/lblname"

android:layout_width="152dp"

android:layout_height="45dp"

android:layout_x="156dp"

android:layout_y="64dp"

android:textAppearance="?android:attr/textAppearanceLarge"

android:textColor="#FFFFFF" />

<TextView

android:id="@+id/lbldate"

android:layout_width="132dp"

android:layout_height="wrap_content"

android:layout_x="156dp"

android:layout_y="125dp"

android:textAppearance="?android:attr/textAppearanceLarge"

android:textColor="#FFFFFF" />

<TextView

android:id="@+id/lblprice1"

android:layout_width="65dp"

android:layout_height="wrap_content"

android:layout_x="0dp"

android:layout_y="187dp"

android:text="Price:"

android:textAppearance="?android:attr/textAppearanceLarge"

android:textColor="#FFFFFF" />

<TextView

android:id="@+id/lblcl"

android:layout_width="131dp"

android:layout_height="wrap_content"

android:layout_x="0dp"

android:layout_y="125dp"

android:text="Launch Date:"

android:textAppearance="?android:attr/textAppearanceLarge"

android:textColor="#FFFFFF" />

<TextView

android:id="@+id/lblprice"

android:layout_width="114dp"

android:layout_height="wrap_content"

android:layout_x="156dp"

android:layout_y="183dp"

android:textAppearance="?android:attr/textAppearanceLarge"

android:textColor="#FFFFFF" />

<ImageView

android:id="@+id/img"

android:layout_width="394dp"

android:layout_height="540dp"

android:layout_x="0dp"

android:layout_y="0dp" />

<Button

android:id="@+id/btnback"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_x="159dp"

android:layout_y="490dp"

android:text="Back" />

</AbsoluteLayout>

ImageAdapter.java

package com.example.assignment11;

import android.content.Context;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.Gallery;

import android.widget.ImageView;

public class ImageAdapter extends BaseAdapter {

Context c;

Integer hundai[]={R.drawable.a,R.drawable.b,R.drawable.v,R.drawable.r,R.drawable.s,R.drawable.t};

Integer maruti[]={R.drawable.c,R.drawable.d,R.drawable.e,R.drawable.f,R.drawable.g,R.drawable.h};

Integer honda[]={R.drawable.k,R.drawable.l,R.drawable.m,R.drawable.n,R.drawable.o,R.drawable.p};

int position=0,flag=0;

public ImageAdapter(DetailActivity c, int flag) {

this.c=c;

this.flag=flag;

}

public int getCount() {

if(flag==0)

return maruti.length;

else if(flag==1)

return hundai.length;

else if(flag==2)

return honda.length;

return 0;

}

@Override

public Object getItem(int position) {

return null;

}

@Override

public long getItemId(int position) {

return 0;

}

@Override

public View getView(int pos, View convertView, ViewGroup parent) {

ImageView iv =new ImageView(c);

if(flag==0)

iv.setImageResource(maruti[pos]);

else if(flag==1)

iv.setImageResource(hundai[pos]);

else if(flag==2)

iv.setImageResource(honda[pos]);

iv.setScaleType(ImageView.ScaleType.FIT_XY);

iv.setLayoutParams(new Gallery.LayoutParams(160,120));

//Toast.makeText(c,pos+"", Toast.LENGTH_SHORT).show();

return iv;

}

Output

To download follow this link : Program 11

BCA PROGRAM SOLUTION

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