Question

Java 12.2 Scrapbooking App. Write A JAVA application. Find four images of famous landmarks using websites such as flicker. Create an app similar to the welcome app in which you arrange images in a collage. Add text that identifies the landmark. You can use images that are part of your project or you can specify the URL of an image that's online

Answer 1

Source code for Scrapbooking app:

MainActivity.java

package com.bsn.scrapbooking;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.LinearLayout;
import android.widget.ListView;

import java.util.Locale;

public class MainActivity extends AppCompatActivity {

    private ListView mDrawerList;
    private DrawerLayout mDrawerLayout;
    private String mListSelected;
    private Context context;
    private LinearLayout baseLL;
    private Menu menu;
    ActionBarDrawerToggle mActionBarDrawerToggle;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        context = this;
        setTitle(R.string.app_name);
        setContentView(R.layout.activity_main);
        baseLL = (LinearLayout) findViewById(R.id.imageList);
        mDrawerList = (ListView)findViewById(R.id.navList);
        mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
        mListSelected = "NEPAL";

        toggleDrawer();
        menuClicked();
        new ViewLayout(this, baseLL, mListSelected);
    }

    private void menuClicked(){
        mDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                baseLL.removeAllViews();
                if(id==1){
                    mListSelected = "AMERICA";
                }else if(id == 2){
                    mListSelected = "CANADA";
                }else{
                    mListSelected = "NEPAL";
                }
                new ViewLayout(context, baseLL, mListSelected);
                mDrawerLayout.closeDrawers();
            }
        });
    }

    private void toggleDrawer(){
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);
        //Create Drawer Toggle
        mActionBarDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.open_drawer, R.string.close_drawer){
            @Override
            public void onDrawerOpened(View drawerView) {
                super.onDrawerOpened(drawerView);
            }

            @Override
            public void onDrawerClosed(View drawerView) {
                super.onDrawerClosed(drawerView);
            }
        };
        mDrawerLayout.setDrawerListener(mActionBarDrawerToggle);
    }

    // create an action bar button
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        this.menu = menu;
        getMenuInflater().inflate(R.menu.topmenu, menu);
        if(getCurrentLocale().getISO3Language().equals("eng")){
            this.menu.findItem(R.id.nepali).setVisible(true);
        }else{
            this.menu.findItem(R.id.english).setVisible(true);
        }
        return super.onCreateOptionsMenu(menu);
    }

    // handle menu activities
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if(mActionBarDrawerToggle.onOptionsItemSelected(item)){
            return true;
        }

        int id = item.getItemId();
        if (id == R.id.nepali) {
            this.menu.findItem(R.id.nepali).setVisible(false);
            Locale locale = new Locale("ne");
            setLocale(locale);
            this.menu.findItem(R.id.english).setVisible(true);
        }else if(id == R.id.english){
            this.menu.findItem(R.id.english).setVisible(false);
            Locale locale = new Locale("en");
            setLocale(locale);
            this.menu.findItem(R.id.nepali).setVisible(true);
        }
        return super.onOptionsItemSelected(item);
    }

    @TargetApi(Build.VERSION_CODES.N)
    public Locale getCurrentLocale(){
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N){
            return getResources().getConfiguration().getLocales().get(0);
        } else{
            return getResources().getConfiguration().locale;
        }
    }

    private void setLocale(Locale locale){
        Resources resources = getResources();
        Configuration configuration = resources.getConfiguration();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            configuration.setLocale(locale);
        } else {
            configuration.locale = locale;
        }

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            context.getApplicationContext().createConfigurationContext(configuration);
        } else {
            resources.updateConfiguration(configuration, null);
        }
        Intent refresh = new Intent(MainActivity.this, MainActivity.class);
        startActivity(refresh);
        finish();
    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        mActionBarDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig){
        super.onConfigurationChanged(newConfig);
        mActionBarDrawerToggle.onConfigurationChanged(newConfig);
    }

}

Image.java

package com.bsn.scrapbooking;



public class Image {

    private String mImage;

    private String mText;

    private String mContentDescription;

    private String mCountry;

    public Image(String mImage, String mText, String mContentDescription, String mCountry) {
        this.mImage = mImage;
        this.mText = mText;
        this.mContentDescription = mContentDescription;
        this.mCountry = mCountry;
    }

    public String getImage() {
        return mImage;
    }

    public void setImage(String mImage) {
        this.mImage = mImage;
    }

    public String getText() {
        return mText;
    }

    public void setText(String mText) {
        this.mText = mText;
    }

    public String getContentDescription() {
        return mContentDescription;
    }

    public void setContentDescription(String mContentDescription) {
        this.mContentDescription = mContentDescription;
    }

    public String getCountry() {
        return mCountry;
    }

    public void setCountry(String mCountry) {
        this.mCountry = mCountry;
    }
}

ViewLayout.java:

package com.bsn.scrapbooking;

import android.content.Context;
import android.graphics.Color;
import android.view.Gravity;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;

public class ViewLayout {

    private Context context;

    private LinearLayout baseLL;

    private String listSelected;

    private Image[] mImageBank = new Image[]{
            new Image("bhaktapur", "Bhaktapur", "Old city of Nepal", "NEPAL"),
            new Image("gokyo_ri", "Gokyo Ri", "Sagarmatha National Park", "NEPAL"),
            new Image("swayambhunath", "Swayambhunath", "Stupa in Kathmandu", "NEPAL"),
            new Image("phewa_lake", "Phewa Lake", "Phewa lake in Pokhara", "NEPAL"),

            new Image("lady_liberty", "Lady Liberty", "Statue of lady liberty", "AMERICA"),
            new Image("brooklyn_bridge", "Brooklyn Bridge", "Brooklyn Bridge in New York", "AMERICA"),
            new Image("golden_gate", "Golden Gate", "Golden Gate in San Fransisco", "AMERICA"),
            new Image("white_house", "White House", "White House in Washington DC", "AMERICA"),


            new Image("rocky_mountain", "Rocky Mountain", "Rocky Mountain in Canada", "CANADA"),
            new Image("banff_np", "Banff National Park", "Banff National Park in Canada", "CANADA"),
            new Image("canadian_rockies", "Canadian Rockies", "Canadian Rockies in Canada", "CANADA"),
            new Image("cn_tower", "CN Tower", "CN Tower in Canada", "CANADA"),
    };

    ViewLayout(Context context, LinearLayout baseLL, String listSelected) {
        this.baseLL = baseLL;
        this.context = context;
        this.listSelected = listSelected;
        LinearLayout[] imageContainer = new LinearLayout[mImageBank.length];

        int count = 0;
        LinearLayout ll = this.setLinearLayout();
        for (int i = 0; i < mImageBank.length; i++) {
            if (mImageBank[i].getCountry() == this.listSelected) {
                if (count == 2) {
                    ll = this.setLinearLayout();
                    count = 0;
                }
                ImageView resultView = this.setImageView(i);
                TextView resultText = this.setTextView(i);
                RelativeLayout resultRelative = this.setRelativeLayout();
                resultRelative.addView(resultView);
                resultRelative.addView(resultText);
                ll.addView(resultRelative);
                imageContainer[i] = ll;
                count++;
            }
        }
        for (int j = 0; j < imageContainer.length; j++) {
            if (imageContainer[j] != null && imageContainer[j].getParent() == null) {
                this.baseLL.addView(imageContainer[j]);
            }
        }
    }

    public LinearLayout setLinearLayout() {
        LinearLayout linearL = new LinearLayout(this.context);
        LinearLayout.LayoutParams linearParams = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT, 375
        );
        linearParams.setMargins(0, 60, 0, 0);
        linearL.setLayoutParams(linearParams);
        linearL.setPadding(0, 5, 0, 5);
        linearL.setBaselineAligned(false);
        linearL.setOrientation(LinearLayout.HORIZONTAL);
        return linearL;
    }

    public RelativeLayout setRelativeLayout() {
        RelativeLayout relativeL = new RelativeLayout(this.context);
        LinearLayout.LayoutParams relativeParams = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.MATCH_PARENT,
                1
        );
        relativeParams.setMargins(2, 1, 2, 1);
        relativeL.setLayoutParams(relativeParams);
        relativeL.setFocusable(true);
        return relativeL;
    }

    public ImageView setImageView(Integer i) {
        ImageView imageView = new ImageView(this.context);
        RelativeLayout.LayoutParams imageParams = new RelativeLayout.LayoutParams(
                RelativeLayout.LayoutParams.MATCH_PARENT,
                RelativeLayout.LayoutParams.MATCH_PARENT
        );
        imageParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
        imageView.setLayoutParams(imageParams);
        imageView.setScaleType(ImageView.ScaleType.FIT_XY);
        imageView.setAdjustViewBounds(true);
        String mDrawableName = mImageBank[i].getImage();
        int resID = this.context.getResources().getIdentifier(mDrawableName, "drawable", this.context.getPackageName());
        imageView.setImageResource(resID);
        imageView.setContentDescription(mImageBank[i].getContentDescription());
        return imageView;

    }

    public TextView setTextView(Integer i) {
        TextView textView = new TextView(this.context);
        RelativeLayout.LayoutParams textViewParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
        textViewParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
        textViewParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
        textViewParams.addRule(RelativeLayout.ALIGN_PARENT_START, RelativeLayout.TRUE);
        textViewParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
        textViewParams.addRule(RelativeLayout.ALIGN_PARENT_END, RelativeLayout.TRUE);
        textView.setLayoutParams(textViewParams);
        textView.setTextSize(15);
        textView.setTextColor(Color.WHITE);
        textView.setBackgroundColor(Color.parseColor("#3F51B5"));
        textView.setPadding(10, 10, 10, 10);
        textView.setGravity(Gravity.CENTER);
        textView.setText(mImageBank[i].getText());
        textView.setContentDescription(mImageBank[i].getText());

        return textView;
    }
}

Let me know if you have any doubts or if you need anything to change. 

If you are satisfied with the solution, please leave a +ve feedback : ) Let me know for any help with any other questions.

Thank You!
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