Add items from DD API feed (#1)

- Use okhttp to retrive JSON data - Use gson to parse JSON into usable objects - Modify ListActivity to use feed data rather than static list of string
jnovinger · May 2, 2016 · b6cc39a · b6cc39a
1 parent 0c8d6aa
commit b6cc39a
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Showing 7 changed files with 200 additions and 16 deletions.
diff --git a/app/build.gradle b/app/build.gradle
@@ -22,4 +22,6 @@ android {
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     compile 'com.android.support:appcompat-v7:23.0.1'
+    compile 'com.squareup.okhttp3:okhttp:3.2.0'
+    compile 'com.google.code.gson:gson:2.6.2'
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
@@ -2,6 +2,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.novinger.jason.demoreader" >
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"

diff --git a/app/src/main/java/org/novinger/jason/demoreader/ListActivity.java b/app/src/main/java/org/novinger/jason/demoreader/ListActivity.java
@@ -1,47 +1,70 @@
 package org.novinger.jason.demoreader;
 
+import android.os.StrictMode;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
+import android.view.ViewPropertyAnimator;
 import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 
+import com.google.gson.Gson;
+
+import org.novinger.jason.demoreader.datamodels.Article;
+
+import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Collections;
+
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
 
 public class ListActivity extends AppCompatActivity {
 
+    private final static int qty = 50;
+    private final static String feedUrl = "http://www.dailydot.com/api/v1/content/article/";
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_list);
 
+        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
+        StrictMode.setThreadPolicy(policy);
+        Article[] articles;
+        try {
+            articles = getFeedItems(getFeedUrl());
+        } catch (IOException ex) {
+            articles = new Article[0];
+            Log.d("Exception", ex.toString());
+        }
+
         final ListView listview = (ListView) findViewById(R.id.listview);
-        String[] values = new String[] {
-                "Jason", "Cindy", "Hannah", "Leah", "Kirsten", "Matt", "Elle", "Trevor", "Alex",
-                "Eli", "Danika", "Lori", "Wyatt", "Chad"
-        };
-        final ArrayList<String> list = new ArrayList<String>();
-        Collections.addAll(list, values);
+        final ArrayList<String> list = new ArrayList<>();
+        for (Article article : articles) {
+            list.add(article.toString());
+        }
 
         final ArrayAdapter adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, list);
         listview.setAdapter(adapter);
         listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
             @Override
             public void onItemClick(AdapterView<?> parent, final View view, int position, long id) {
                 final String item = (String) parent.getItemAtPosition(position);
-                view.animate().setDuration(500).alpha(0)
-                    .withEndAction(new Runnable() {
-                        @Override
-                        public void run() {
-                            list.remove(item);
-                            adapter.notifyDataSetChanged();
-                            view.setAlpha(1);
-                        }
-                    });
+                final ViewPropertyAnimator viewPropertyAnimator = view.animate().setDuration(100).alpha(0);
+                viewPropertyAnimator.withEndAction(new Runnable() {
+                    @Override
+                    public void run() {
+                        list.remove(item);
+                        list.trimToSize();
+                        adapter.notifyDataSetChanged();
+                        view.setAlpha(1);
+                    }
+                });
             }
         });
     }
@@ -67,4 +90,22 @@ public boolean onOptionsItemSelected(MenuItem item) {
 
         return super.onOptionsItemSelected(item);
     }
+
+    private Article[] getFeedItems(String url) throws IOException {
+        OkHttpClient client = new OkHttpClient();
+
+        Request request = new Request.Builder().url(url).build();
+        Response response = client.newCall(request).execute();
+        String json = response.body().string();
+        Gson gson = new Gson();
+        return gson.fromJson(json, Article[].class);
+    }
+
+    private String getFeedUrl() {
+        if(qty > 0) {
+           return feedUrl + "?quantity=" + Integer.toString(qty);
+        }
+
+        return feedUrl;
+    }
 }
diff --git a/app/src/main/java/org/novinger/jason/demoreader/datamodels/Article.java b/app/src/main/java/org/novinger/jason/demoreader/datamodels/Article.java
@@ -0,0 +1,67 @@
+package org.novinger.jason.demoreader.datamodels;
+
+/**
+ * Created by jason on 4/27/16.
+ */
+public class Article {
+    private String id;
+    private int realId;
+    private String headline;
+    private String slug;
+    private Author[] authors;
+    private String summary;
+    private String url;
+
+    public Article() {}
+
+    public Article(String id, String headline, String slug, Author[] authors, String url, String summary) {
+        this.id = id;
+        this.realId = mungeId(id);
+        this.headline = headline;
+        this.slug = slug;
+        this.authors = authors;
+        this.url = url;
+        this.summary = summary;
+    }
+
+    private int mungeId(String id) {
+        String[] parts = id.split(".");
+        return Integer.parseInt(parts[2]);
+    }
+
+    public String toString() {
+        return getHeadline() + " — " + getPrimaryAuthor().getName();
+    }
+
+    public int getId() {
+        return realId;
+    }
+
+    public String getHeadline() {
+        return headline;
+    }
+
+    public String getSlug() {
+        return slug;
+    }
+
+    public Author[] getAuthors() {
+        return authors;
+    }
+
+    public Author getPrimaryAuthor() {
+        if (authors.length > 0) {
+            return authors[0];
+        }
+
+        return new Author();
+    }
+
+    public String getSummary() {
+        return summary;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+}
diff --git a/app/src/main/java/org/novinger/jason/demoreader/datamodels/ArticleFeed.java b/app/src/main/java/org/novinger/jason/demoreader/datamodels/ArticleFeed.java
@@ -0,0 +1,24 @@
+package org.novinger.jason.demoreader.datamodels;
+
+/**
+ * Created by jason on 4/27/16.
+ */
+public class ArticleFeed {
+    private int count;
+    private String next;
+    private String previous;
+    private Article[] results;
+
+    public ArticleFeed() {}
+
+    public ArticleFeed(int count, String next, String previous, Article[] results) {
+        this.count = count;
+        this.next = next;
+        this.previous = previous;
+        this.results = results;
+    }
+
+    public Article[] getResults() {
+        return results;
+    }
+}
diff --git a/app/src/main/java/org/novinger/jason/demoreader/datamodels/Author.java b/app/src/main/java/org/novinger/jason/demoreader/datamodels/Author.java
@@ -0,0 +1,34 @@
+package org.novinger.jason.demoreader.datamodels;
+
+/**
+ * Created by jason on 4/27/16.
+ */
+public class Author {
+    private String name;
+    private String url;
+    private String slug;
+
+    public Author() {}
+
+    public Author(String name, String url, String slug) {
+        this.name = name;
+        this.url = url;
+        this.slug = slug;
+    }
+
+    public String toString() {
+        return name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public String getSlug() {
+        return slug;
+    }
+}
diff --git a/app/src/main/java/org/novinger/jason/demoreader/datamodels/Headline.java b/app/src/main/java/org/novinger/jason/demoreader/datamodels/Headline.java
@@ -0,0 +1,13 @@
+package org.novinger.jason.demoreader.datamodels;
+
+/**
+ * Created by jason on 4/27/16.
+ */
+public class Headline {
+    private Boolean headline;
+    private Boolean title;
+    private Boolean social;
+    private String text;
+
+    public Headline() {}
+}