Pulse Of The Blogosphere » Retrofit 2 – Nhận dữ liệu từ Google

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        <title>"MTP" - Google Tin tức</title>
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        <language>vi</language>
        <webMaster>news-webmaster@google.com</webMaster>
        <copyright>2020 Google Inc.</copyright>
        <lastBuildDate>Mon, 22 Jun 2020 10:51:31 GMT</lastBuildDate>
        <description>Google Tin tức</description>
        <item>
            <title>Sky Tour Movie của Sơn Tùng MTP tốp 7 Trending của Youtube - Báo Pháp Luật TP.HCM</title>
            <link>https://plo.vn/giai-tri/xem-nghe-doc/sky-tour-movie-cua-son-tung-mtp-top-7-trending-cua-youtube-917039.html</link>
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            <pubDate>Sat, 06 Jun 2020 07:00:00 GMT</pubDate>
            <description><a href="https://plo.vn/giai-tri/xem-nghe-doc/sky-tour-movie-cua-son-tung-mtp-top-7-trending-cua-youtube-917039.html" target="_blank" rel="noopener noreferrer">Sky Tour Movie của Sơn Tùng MTP tốp 7 Trending của Youtube</a>&nbsp;&nbsp;<font color="#6f6f6f">Báo Pháp Luật TP.HCM</font></description>
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            <title>Sky Tour của Sơn Tùng M-TP: Toàn kể thành công, cố quên thất bại? - Tuổi Trẻ Online</title>
            <link>https://tuoitre.vn/sky-tour-cua-son-tung-m-tp-toan-ke-thanh-cong-co-quen-that-bai-20200613100020661.htm</link>
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            <pubDate>Sat, 13 Jun 2020 07:00:00 GMT</pubDate>
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            <source url="https://tuoitre.vn">Tuổi Trẻ Online</source>
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<title>"MTP" - Google Tin tức</title>

<webMaster>news-webmaster@google.com</webMaster>

<copyright>2020 Google Inc.</copyright>

<description>Google Tin tức</description>

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<title>Sky Tour Movie của Sơn Tùng MTP tốp 7 Trending của Youtube - Báo Pháp Luật TP.HCM</title>

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<description><a href="https://plo.vn/giai-tri/xem-nghe-doc/sky-tour-movie-cua-son-tung-mtp-top-7-trending-cua-youtube-917039.html" target="_blank" rel="noopener noreferrer">Sky Tour Movie của Sơn Tùng MTP tốp 7 Trending của Youtube</a>  <font color="#6f6f6f">Báo Pháp Luật TP.HCM</font></description>

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<title>Sky Tour của Sơn Tùng M-TP: Toàn kể thành công, cố quên thất bại? - Tuổi Trẻ Online</title>

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    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

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compileOptions {

sourceCompatibility JavaVersion.VERSION_1_8

targetCompatibility JavaVersion.VERSION_1_8

}

    implementation 'com.squareup.retrofit2:retrofit:+'
    implementation 'com.squareup.retrofit2:converter-simplexml:+'

1 2	implementation 'com.squareup.retrofit2:retrofit:+' implementation 'com.squareup.retrofit2:converter-simplexml:+'

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

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

package com.example.retrofitrssgoogle;

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

@Root(name = "rss", strict = false)
public class RssFeed {
    @Element
    private RssChannel channel;

    public RssChannel getChannel() {
        return channel;
    }
}

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package com.example.retrofitrssgoogle;

import org.simpleframework.xml.Element;

import org.simpleframework.xml.Root;

@Root(name = "rss", strict = false)

public class RssFeed {

@Element

private RssChannel channel;

public RssChannel getChannel() {

return channel;

}

package com.example.retrofitrssgoogle;

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

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

@Root(name = "channel", strict = false)
public class RssChannel {
    @ElementList(inline = true, required = false)
    private ArrayList<RssItem> items;

    public ArrayList<RssItem> getItems() {
        return items;
    }
}

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package com.example.retrofitrssgoogle;

import org.simpleframework.xml.ElementList;

import org.simpleframework.xml.Root;

import java.util.ArrayList;

import java.util.List;

@Root(name = "channel", strict = false)

public class RssChannel {

@ElementList(inline = true, required = false)

private ArrayList<RssItem> items;

public ArrayList<RssItem> getItems() {

return items;

}

package com.example.retrofitrssgoogle;

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

@Root(name = "item", strict = false)
public class RssItem {
    @Element
    private String title;
    @Element
    private String link;
    @Element
    private String pubDate;
    @Element
    private String description;

    public String getTitle() {
        return title;
    }

    public String getLink() {
        return link;
    }

    public String getPubDate() {
        return pubDate;
    }

    public String getDescription() {
        return description;
    }

    @Override
    public String toString() {
        return title + '\n';
    }
}

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package com.example.retrofitrssgoogle;

import org.simpleframework.xml.Element;

import org.simpleframework.xml.Root;

@Root(name = "item", strict = false)

public class RssItem {

@Element

private String title;

@Element

private String link;

@Element

private String pubDate;

@Element

private String description;

public String getTitle() {

return title;

}

public String getLink() {

return link;

}

public String getPubDate() {

return pubDate;

}

public String getDescription() {

return description;

}

@Override

public String toString() {

return title + '\n';

}

package com.example.retrofitrssgoogle;

import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.Query;

public interface RetrofitAPI {
    @GET("feeds?pz=1&cf=vi_vn&ned=vi_vn&hl=vi_vn")
    Call<RssFeed> getFeed(
            @Query("q") String q
    );
}

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package com.example.retrofitrssgoogle;

import retrofit2.Call;

import retrofit2.http.GET;

import retrofit2.http.Query;

public interface RetrofitAPI {

@GET("feeds?pz=1&cf=vi_vn&ned=vi_vn&hl=vi_vn")

Call<RssFeed> getFeed(

@Query("q") String q

);

}

package com.example.retrofitrssgoogle;

import okhttp3.OkHttpClient;
import retrofit2.Retrofit;
import retrofit2.converter.simplexml.SimpleXmlConverterFactory;

public class RetrofitBuilder {
    private static RetrofitAPI retrofitAPI;
    public static RetrofitAPI getInstance(){
        if (retrofitAPI == null){
            Retrofit retrofit = new Retrofit.Builder()
                    .baseUrl("https://news.google.de/news/")
                    .client(new OkHttpClient())
                    .addConverterFactory(SimpleXmlConverterFactory.create())
                    .build();
            retrofitAPI = retrofit.create(RetrofitAPI.class);
        }
        return retrofitAPI;
    }
}

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package com.example.retrofitrssgoogle;

import okhttp3.OkHttpClient;

import retrofit2.Retrofit;

import retrofit2.converter.simplexml.SimpleXmlConverterFactory;

public class RetrofitBuilder {

private static RetrofitAPI retrofitAPI;

public static RetrofitAPI getInstance(){

if (retrofitAPI == null){

Retrofit retrofit = new Retrofit.Builder()

.baseUrl("https://news.google.de/news/")

.client(new OkHttpClient())

.addConverterFactory(SimpleXmlConverterFactory.create())

.build();

retrofitAPI = retrofit.create(RetrofitAPI.class);

}

return retrofitAPI;

}

String key = "MTP";
RetrofitBuilder.getInstance().getFeed(key).enqueue(new Callback<RssFeed>() {
    @Override
    public void onResponse(Call<RssFeed> call, Response<RssFeed> response) {
        if (response.isSuccessful()){
            RssFeed rssFeed = response.body();
            RssChannel rssChannel = rssFeed.getChannel();
            ArrayList<RssItem> items = rssChannel.getItems();
            //items chính là List danh sách nhận được để dùng cho RecycleView
            Toast.makeText(MainActivity.this, items.toString(), Toast.LENGTH_SHORT).show();
        }
        else {
            Toast.makeText(MainActivity.this, "Request Error", Toast.LENGTH_SHORT).show();
        }
    }

    @Override
    public void onFailure(Call<RssFeed> call, Throwable t) {
        if (call.isCanceled()){
            Toast.makeText(MainActivity.this, "Call was cancelled forcefully", Toast.LENGTH_SHORT).show();
        }
        else {
            Toast.makeText(MainActivity.this, "Network Error", Toast.LENGTH_SHORT).show();
        }
    }
 });

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String key = "MTP";

RetrofitBuilder.getInstance().getFeed(key).enqueue(new Callback<RssFeed>() {

@Override

public void onResponse(Call<RssFeed> call, Response<RssFeed> response) {

if (response.isSuccessful()){

RssFeed rssFeed = response.body();

RssChannel rssChannel = rssFeed.getChannel();

ArrayList<RssItem> items = rssChannel.getItems();

//items chính là List danh sách nhận được để dùng cho RecycleView

Toast.makeText(MainActivity.this, items.toString(), Toast.LENGTH_SHORT).show();

}

else {

Toast.makeText(MainActivity.this, "Request Error", Toast.LENGTH_SHORT).show();

}

@Override

public void onFailure(Call<RssFeed> call, Throwable t) {

if (call.isCanceled()){

Toast.makeText(MainActivity.this, "Call was cancelled forcefully", Toast.LENGTH_SHORT).show();

}

else {

Toast.makeText(MainActivity.this, "Network Error", Toast.LENGTH_SHORT).show();

}

});

I. Link RSS từ Google

II. Cấp quyền thư viện Retrofit 2

1. Implement thư viện

III. Tạo các Class theo RSS

1. RssFeed.java

2. RssChannel.java

3. RssItem.java

IV. Tạo class của Retrofit 2

1. interface RetrofitAPI.Class

2. RetrofitBuilder.java

V. Sử dụng

Android

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