Day 3 - Retrofit

compile 'com.squareup.retrofit:retrofit:1.6.1'

RestAdapter restAdapter = new RestAdapter.Builder()
        .setEndpoint("http://api.dribbble.com")
        .build();

package com.devahoy.learn30androidlibraries.day3;

import retrofit.http.GET;

public interface SimpleRetrofit {

    @GET("/shots/21603")
    Shot getShot();
}

package com.devahoy.learn30androidlibraries.day3;

import com.google.gson.annotations.SerializedName;

public class Shot {

    private int id;
    private String title;
    private String description;
    private String url;

    @SerializedName("image_url")
    private String imageUrl;

    //GETTER and SETTER
    ...

package com.devahoy.learn30androidlibraries.day3;

import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.widget.Toast;

import retrofit.RestAdapter;

public class RetrofitActivity extends ActionBarActivity {

    private static final String TAG = RetrofitActivity.class.getSimpleName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        RestAdapter restAdapter = new RestAdapter.Builder()
                .setEndpoint("http://api.dribbble.com")
                .build();

        SimpleRetrofit retrofit = restAdapter.create(SimpleRetrofit.class);
        Shot shot = retrofit.getShot();

        Toast.makeText(this, "Name : " + shot.getTitle() + " URL : " + shot.getUrl(),
                Toast.LENGTH_LONG).show();

        new HttpAsyncTask().execute();
    }

}

package com.devahoy.learn30androidlibraries.day3;

import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.widget.Toast;

import retrofit.RestAdapter;

public class RetrofitActivity extends ActionBarActivity {

    private static final String TAG = RetrofitActivity.class.getSimpleName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        new HttpAsyncTask().execute();
    }

    public class HttpAsyncTask extends AsyncTask<Void, Void, Shot> {
        @Override
        protected Shot doInBackground(Void... params) {

            RestAdapter restAdapter = new RestAdapter.Builder()
                    .setEndpoint("http://api.dribbble.com")
                    .build();

            SimpleRetrofit retrofit = restAdapter.create(SimpleRetrofit.class);
            Shot shot = retrofit.getShot();

            return shot;
        }

        @Override
        protected void onPostExecute(Shot shot) {

            Toast.makeText(getApplicationContext(),
                    "Name : " + shot.getTitle() + " URL : " + shot.getUrl(),
                    Toast.LENGTH_LONG).show();
            super.onPostExecute(shot);
        }
    }
}

package com.devahoy.learn30androidlibraries.day3;

import retrofit.http.GET;
import retrofit.http.Path;

public interface SimpleRetrofit {

    @GET("/shots/21603")
    Shot getShot();

    @GET("/shots/{id}")
    Shot getShotById(@Path("id") int id);
}

Shot shot = retrofit.getShot();

Shot shot = retrofit.getShotById(30000);

package com.devahoy.learn30androidlibraries.day3;

import retrofit.Callback;
import retrofit.http.GET;
import retrofit.http.Path;

public interface SimpleRetrofit {
    ...

    @GET("/shots/{id}")
    void getShotByIdWithCallback(@Path("id") int id, Callback<Shot> callback);
}

SimpleRetrofit retrofit = restAdapter.create(SimpleRetrofit.class);
retrofit.getShotByIdWithCallback(21603, new Callback<Shot>() {
    @Override
    public void success(Shot shot, Response response) {
        Toast.makeText(getApplicationContext(),
                "Name : " + shot.getTitle() + " URL : " + shot.getUrl(),
                Toast.LENGTH_LONG).show();
    }

    @Override
    public void failure(RetrofitError error) {
        // If any error.
    }
});

package com.devahoy.learn30androidlibraries.day3;

import java.util.List;

public class ShotList {

    private List<Shot> shots;

    public List<Shot> getShots() {
        return shots;
    }

    public void setShots(List<Shot> shots) {
        this.shots = shots;
    }
}

package com.devahoy.learn30androidlibraries.day3;

import java.util.List;

import retrofit.Callback;
import retrofit.http.GET;
import retrofit.http.Path;

public interface SimpleRetrofit {
    ...

    @GET("/shots/popular")
    void getShotsByPopular(Callback<ShotList> callback);
}

<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
          android:id="@+id/gridview"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:columnWidth="120dp"
          android:numColumns="auto_fit"
          android:verticalSpacing="4dp"
          android:horizontalSpacing="4dp"
          android:stretchMode="columnWidth"
          android:gravity="center" />

package com.devahoy.learn30androidlibraries.day3;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;

import com.squareup.picasso.Picasso;

public class GridAdapter extends BaseAdapter {
    private Context mContext;
    private LayoutInflater mInflater;
    private ShotList mShots;

    public GridAdapter(Context context, ShotList shots) {
        mContext = context;
        mInflater = LayoutInflater.from(context);
        mShots = shots;
    }

    public int getCount() {
        return mShots.getShots().size();
    }

    public Object getItem(int position) {
        return null;
    }

    public long getItemId(int position) {
        return 0;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        ImageView imageView;

        if (convertView == null) {
            imageView = new ImageView(mContext);
            imageView.setLayoutParams(new GridView.LayoutParams(
                    ViewGroup.LayoutParams.MATCH_PARENT, 200));
            imageView.setScaleType(ImageView.ScaleType.FIT_XY);
            imageView.setPadding(4, 4, 4, 4);
        } else {
            imageView = (ImageView) convertView;
        }

        Picasso.with(mContext)
                .load(mShots.getShots().get(position).getImageUrl())
                .into(imageView);

        return imageView;
    }

}

package com.devahoy.learn30androidlibraries.day3;

import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.Toast;

import com.devahoy.learn30androidlibraries.R;

import retrofit.Callback;
import retrofit.RestAdapter;
import retrofit.RetrofitError;
import retrofit.client.Response;

public class RetrofitActivity extends ActionBarActivity {

    private static final String TAG = RetrofitActivity.class.getSimpleName();

    private GridView mGridView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.day3_activity_retrofit);
        mGridView = (GridView) findViewById(R.id.gridview);

        RestAdapter restAdapter = new RestAdapter.Builder()
                .setEndpoint("http://api.dribbble.com")
                .build();

        SimpleRetrofit retrofit = restAdapter.create(SimpleRetrofit.class);

        retrofit.getShotsByPopular(new Callback<ShotList>() {
            @Override
            public void success(ShotList shots, Response response) {
                mGridView.setAdapter(new GridAdapter(RetrofitActivity.this, shots));
            }

            @Override
            public void failure(RetrofitError error) {
                Toast.makeText(getApplicationContext(),
                        error.getMessage(),
                        Toast.LENGTH_LONG).show();
            }
        });

        mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
                Toast.makeText(RetrofitActivity.this, "" + position, Toast.LENGTH_SHORT).show();
            }
        });

    }
}