How to import RecyclerView for Android L-preview

Question

Trying to use the new RecyclerView from the support library. I downloaded the 20 update for the support library using the SDK manager.

I\'ve added the jar file to th

Answer 1

This works for me

Define internet permission

 <uses-permission android:name="android.permission.INTERNET" >

Add dependency

compile 'com.squareup.retrofit2:retrofit:2.1.0'
    compile 'com.google.code.gson:gson:2.6.2'
    compile 'com.squareup.retrofit2:converter-gson:2.1.0'
    compile 'com.google.code.gson:gson:2.6.2'
    compile 'com.squareup.retrofit2:converter-gson:2.1.0'
    compile 'com.squareup.okhttp3:logging-interceptor:3.4.1'
    compile 'com.squareup.okhttp3:okhttp:3.4.1'
    compile 'com.squareup.retrofit2:retrofit:2.1.0'
    compile ('com.squareup.retrofit2:converter-simplexml:2.1.0'){
        exclude group: 'stax', module: 'stax-api'
        exclude group: 'stax', module: 'stax'
        exclude group: 'xpp3', module: 'xpp3'
    }

In Main Activity

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;

import java.util.List;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import retrofit2.Retrofit;
import retrofit2.converter.simplexml.SimpleXmlConverterFactory;

public class MainActivity extends AppCompatActivity {
    private BreakfastMenu breakfastMenu;
    List<BreakfastMenu> list;
    TextView responseText;
    APIInterface apiInterface;
    String name;
    String price;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        responseText=(TextView)findViewById(R.id.reponseText);
        apiInterface = APIClient.getClient().create(APIInterface.class);


        /**
         GET List Resources
         **/
        Call<BreakfastMenu> call = apiInterface.getBreakfastMenu();
        call.enqueue(new Callback<BreakfastMenu>() {
            @Override
            public void onResponse(Call<BreakfastMenu> call, Response<BreakfastMenu> response) {
               Log.d("TAG", response.code() + "");

                String displayResponse = "";
                BreakfastMenu resource = response.body();
                System.out.println(displayResponse+"display response   ");

                for (Food food : resource.getFoodList())
                {
                    name=food.getName();
                    price=food.getPrice();
                    System.out.println(name+price+"=========================================");
                    displayResponse += food.getName() + " " + food.getPrice()+"\n"+"\n";
                    Toast.makeText(MainActivity.this,name+price,Toast.LENGTH_LONG).show();
                }
                responseText.setText(displayResponse);

            }

            @Override
            public void onFailure(Call<BreakfastMenu> call, Throwable t) {
                call.cancel();
            }
        });

    }
}

Make APIClient.java class

import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;
import retrofit2.converter.simplexml.SimpleXmlConverterFactory;

class APIClient {

    private static Retrofit retrofit = null;

    static Retrofit getClient() {

        HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
        interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();


        retrofit = new Retrofit.Builder()
                .baseUrl("https://www.w3schools.com/")
                .addConverterFactory(SimpleXmlConverterFactory.create())
                .build();



        return retrofit;
    }

}

    enter code here

Make APIInterface.java

import retrofit2.Call;
import retrofit2.http.Body;
import retrofit2.http.Field;
import retrofit2.http.FormUrlEncoded;
import retrofit2.http.GET;
import retrofit2.http.Headers;
import retrofit2.http.POST;
import retrofit2.http.Query;

interface APIInterface {

    @GET("xml/simple.xml")
    @Headers({"Accept: application/xml",
            "User-Agent: Retrofit-Sample-App"})
    Call<BreakfastMenu> getBreakfastMenu();
}

In BreakfastMenu.java

import org.simpleframework.xml.ElementList;
import org.simpleframework.xml.Root;

import java.util.List;

@Root(name = "breakfast_menu")
public class BreakfastMenu
{

    @ElementList(inline = true)
    private List<Food> foodList;

    public BreakfastMenu()
    {
    }

    public List<Food> getFoodList()
    {
        return foodList;
    }

    public void setFoodList(List<Food> foodList)
    {
        this.foodList = foodList;
    }
}

Make Food.java

import org.simpleframework.xml.Element;
import org.simpleframework.xml.Root;

@Root(name = "food")
public class Food
{

    @Element(name = "name")
    private String name;

    @Element(name = "price")
    private String price;

    @Element(name = "description")
    private String description;

    @Element(name = "calories")
    private String calories;

    public Food()
    {
    }

    public String getName()
    {
        return name;
    }

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

    public String getPrice()
    {
        return price;
    }

    public void setPrice(String price)
    {
        this.price = price;
    }

    public String getDescription()
    {
        return description;
    }

    public void setDescription(String description)
    {
        this.description = description;
    }

    public String getCalories()
    {
        return calories;
    }

    public void setCalories(String calories)
    {
        this.calories = calories;
    }
}

In activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

        <TextView
            android:id="@+id/reponseText"
            android:layout_width="match_parent"
            android:layout_height="600dp"
          />


</Linear Layout>

Answer 2

If You have Compiled SDK Version 22.2.0 then add below dependency for recycler view and cardview additional for support of cardView

// for including all the libarary in the directory lib
compile fileTree(include: ['*.jar'], dir: 'libs')
// for support appcompat
compile 'com.android.support:appcompat-v7:22.2.0'
//for including google support design (it makes possible of implementing material design theme from 2.3 and higher)
`compile 'com.android.support:design:22.2.0'

for adding the recycler view use following dependency
compile 'com.android.support:recyclerview-v7:22.2.0'

After that click on Build->rebuild project and you are done.

Answer 3

If anyone still has this issue - you don't have to change compileSdkVersion, this just defeats the whole purpose of support libraries.

Instead, use these in your gradle.build file:

compile 'com.android.support:cardview-v7:+'
compile 'com.android.support:recyclerview-v7:+'
compile 'com.android.support:palette-v7:+'`

Answer 4

This works for me:

compile 'com.android.support:recyclerview-v7:21.0.0-rc1'

Answer 5

I used a small hack to use the RecyclerView on older devices. I just went into my local m2 repository and picked up the RecyclerView source files and put them into my project.

You can find the sourcecode here:

<Android-SDK>\extras\android\m2repository\com\android\support\recyclerview-v7\21.0.0-rc1\recyclerview-v7-21.0.0-rc1-sources.jar

Answer 6

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.3'
compile 'com.android.support:recyclerview-v7:21.0.0'
}

Just make your dependencies like above in build.gradle file, worked for me.