├── .gitignore ├── .idea ├── .name ├── codeStyleSettings.xml ├── compiler.xml ├── copyright │ └── profiles_settings.xml ├── gradle.xml ├── inspectionProfiles │ ├── Project_Default.xml │ └── profiles_settings.xml ├── misc.xml ├── modules.xml ├── uiDesigner.xml └── vcs.xml ├── Persistence.iml ├── README.md ├── app ├── .gitignore ├── app.iml ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── codepath │ │ └── persistencedemo │ │ └── ApplicationTest.java │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── codepath │ │ └── persistencedemo │ │ ├── activities │ │ └── MainActivity.java │ │ ├── adapters │ │ └── InstagramPostsAdapter.java │ │ ├── core │ │ └── MainApplication.java │ │ ├── helpers │ │ └── Utils.java │ │ ├── models │ │ ├── InstagramPost.java │ │ └── InstagramUser.java │ │ ├── networking │ │ └── InstagramClient.java │ │ └── persistence │ │ └── InstagramClientDatabase.java │ └── res │ ├── drawable │ └── gray_oval.xml │ ├── layout │ ├── activity_main.xml │ └── layout_item_post.xml │ ├── menu │ └── menu_main.xml │ ├── mipmap-hdpi │ └── ic_launcher.png │ ├── mipmap-mdpi │ └── ic_launcher.png │ ├── mipmap-xhdpi │ └── ic_launcher.png │ ├── mipmap-xxhdpi │ └── ic_launcher.png │ ├── values-w820dp │ └── dimens.xml │ └── values │ ├── colors.xml │ ├── dimens.xml │ ├── strings.xml │ └── styles.xml ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | .gradle 2 | /local.properties 3 | /.idea/workspace.xml 4 | /.idea/libraries 5 | .DS_Store 6 | /build 7 | -------------------------------------------------------------------------------- /.idea/.name: -------------------------------------------------------------------------------- 1 | PersistenceDemo -------------------------------------------------------------------------------- /.idea/codeStyleSettings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 13 | -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 17 | 18 | -------------------------------------------------------------------------------- /.idea/inspectionProfiles/Project_Default.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 10 | -------------------------------------------------------------------------------- /.idea/inspectionProfiles/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 7 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 67 | 68 | 69 | 70 | 71 | 72 | 77 | 78 | 79 | 80 | 81 | 82 | Android API 22 Platform 83 | 84 | 89 | 90 | 91 | 92 | 93 | 94 | 1.8 95 | 96 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 112 | 113 | 114 | 115 | 116 | 117 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /.idea/uiDesigner.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /Persistence.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # android-instagram-persistence 2 | 3 | Starter project for SQLite persistence workshop: 4 | * When network is available, get data from Instagram API 5 | * When network is NOT available, get data from SQLite (to be implemented) 6 | * ![Imgur](http://i.imgur.com/QfW9Nd1.gif) 7 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/app.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | buildscript { 2 | repositories { 3 | jcenter() 4 | } 5 | dependencies { 6 | classpath 'com.android.tools.build:gradle:1.1.1' 7 | } 8 | } 9 | apply plugin: 'com.android.application' 10 | 11 | repositories { 12 | jcenter() 13 | } 14 | 15 | android { 16 | compileSdkVersion 22 17 | buildToolsVersion "22.0.1" 18 | 19 | defaultConfig { 20 | applicationId "com.codepath.persistencedemo" 21 | minSdkVersion 16 22 | targetSdkVersion 22 23 | versionCode 1 24 | versionName "1.0" 25 | } 26 | buildTypes { 27 | release { 28 | minifyEnabled false 29 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 30 | } 31 | } 32 | } 33 | 34 | dependencies { 35 | compile fileTree(dir: 'libs', include: ['*.jar']) 36 | compile 'com.android.support:appcompat-v7:22.2.0' 37 | compile 'com.android.support:support-v4:22.2.0' 38 | compile 'com.android.support:design:22.2.0' 39 | compile 'com.android.support:recyclerview-v7:21.0.0' 40 | compile 'com.facebook.fresco:fresco:0.5.2' 41 | compile 'com.loopj.android:android-async-http:1.4.7' 42 | } 43 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /opt/android_sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/codepath/persistencedemo/ApplicationTest.java: -------------------------------------------------------------------------------- 1 | package com.codepath.persistencedemo; 2 | 3 | import android.app.Application; 4 | import android.test.ApplicationTestCase; 5 | 6 | /** 7 | * Testing Fundamentals 8 | */ 9 | public class ApplicationTest extends ApplicationTestCase { 10 | public ApplicationTest() { 11 | super(Application.class); 12 | } 13 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 8 | 9 | 15 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /app/src/main/java/com/codepath/persistencedemo/activities/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.codepath.persistencedemo.activities; 2 | 3 | import android.content.Context; 4 | import android.net.ConnectivityManager; 5 | import android.net.NetworkInfo; 6 | import android.os.Bundle; 7 | import android.support.v7.app.AppCompatActivity; 8 | import android.support.v7.widget.LinearLayoutManager; 9 | import android.support.v7.widget.RecyclerView; 10 | import android.util.Log; 11 | import android.widget.Toast; 12 | 13 | import com.codepath.persistencedemo.R; 14 | import com.codepath.persistencedemo.adapters.InstagramPostsAdapter; 15 | import com.codepath.persistencedemo.helpers.Utils; 16 | import com.codepath.persistencedemo.models.InstagramPost; 17 | import com.codepath.persistencedemo.networking.InstagramClient; 18 | import com.loopj.android.http.JsonHttpResponseHandler; 19 | 20 | import org.apache.http.Header; 21 | import org.json.JSONObject; 22 | 23 | import java.util.ArrayList; 24 | import java.util.List; 25 | 26 | public class MainActivity extends AppCompatActivity { 27 | private static final String TAG = "MainActivity"; 28 | 29 | private List posts; 30 | private InstagramPostsAdapter postsAdapter; 31 | 32 | RecyclerView rvInstagramPosts; 33 | 34 | @Override 35 | protected void onCreate(Bundle savedInstanceState) { 36 | super.onCreate(savedInstanceState); 37 | setContentView(R.layout.activity_main); 38 | rvInstagramPosts = (RecyclerView) findViewById(R.id.rvInstagramPosts); 39 | 40 | RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this, 41 | LinearLayoutManager.VERTICAL, false); 42 | rvInstagramPosts.setLayoutManager(layoutManager); 43 | 44 | posts = new ArrayList<>(); 45 | postsAdapter = new InstagramPostsAdapter(posts); 46 | 47 | rvInstagramPosts.setAdapter(postsAdapter); 48 | fetchPopularPosts(); 49 | } 50 | 51 | private void fetchPopularPosts() { 52 | if (isNetworkAvailable()) { 53 | Toast.makeText(this, getString(R.string.network_available_toast), Toast.LENGTH_LONG).show(); 54 | fetchPopularPostsFromInstagramApi(); 55 | } else { 56 | // TODO: Implement the offline scenario 57 | } 58 | } 59 | 60 | private void fetchPopularPostsFromInstagramApi() { 61 | InstagramClient.getPopularPosts(new JsonHttpResponseHandler() { 62 | 63 | @Override 64 | public void onSuccess(int statusCode, Header[] headers, JSONObject response) { 65 | posts.clear(); 66 | List newPosts = Utils.decodePostsFromJsonResponse(response); 67 | posts.addAll(newPosts); 68 | postsAdapter.notifyDataSetChanged(); 69 | } 70 | 71 | @Override 72 | public void onFailure(int statusCode, Header[] headers, Throwable throwable, JSONObject errorResponse) { 73 | Log.d(TAG, "Network error when fetching popular posts"); 74 | throwable.printStackTrace(); 75 | } 76 | }); 77 | } 78 | 79 | private boolean isNetworkAvailable() { 80 | ConnectivityManager connectivityManager 81 | = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); 82 | NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo(); 83 | return activeNetworkInfo != null && activeNetworkInfo.isConnectedOrConnecting(); 84 | } 85 | } 86 | -------------------------------------------------------------------------------- /app/src/main/java/com/codepath/persistencedemo/adapters/InstagramPostsAdapter.java: -------------------------------------------------------------------------------- 1 | package com.codepath.persistencedemo.adapters; 2 | 3 | import android.net.Uri; 4 | import android.support.v7.widget.RecyclerView; 5 | import android.text.format.DateUtils; 6 | import android.view.LayoutInflater; 7 | import android.view.View; 8 | import android.view.ViewGroup; 9 | import android.widget.TextView; 10 | import com.codepath.persistencedemo.R; 11 | import com.codepath.persistencedemo.models.InstagramPost; 12 | import com.facebook.drawee.view.SimpleDraweeView; 13 | 14 | import java.util.ArrayList; 15 | import java.util.List; 16 | 17 | public class InstagramPostsAdapter extends RecyclerView.Adapter { 18 | private static final String TAG = "InstagramPostsAdapter"; 19 | 20 | private List posts; 21 | 22 | public InstagramPostsAdapter(List posts) { 23 | this.posts = (posts == null ? new ArrayList() : posts); 24 | } 25 | 26 | @Override 27 | public PostItemViewHolder onCreateViewHolder(ViewGroup viewGroup, int position) { 28 | View itemView = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.layout_item_post, viewGroup, false); 29 | return new PostItemViewHolder(itemView); 30 | } 31 | 32 | @Override 33 | public void onBindViewHolder(PostItemViewHolder postItemViewHolder, int position) { 34 | final InstagramPost instagramPost = posts.get(position); 35 | 36 | postItemViewHolder.tvUserName.setText(instagramPost.user.userName); 37 | postItemViewHolder.tvRelativeTimestamp.setText( 38 | DateUtils.getRelativeTimeSpanString(instagramPost.createdTime * 1000, 39 | System.currentTimeMillis(), DateUtils.SECOND_IN_MILLIS)); 40 | 41 | // Reset image view 42 | postItemViewHolder.sdvProfileImage.setImageURI(null); 43 | 44 | Uri profilePictureUri = Uri.parse(instagramPost.user.profilePictureUrl); 45 | postItemViewHolder.sdvProfileImage.setImageURI(profilePictureUri); 46 | } 47 | 48 | @Override 49 | public int getItemCount() { 50 | return posts == null ? 0 : posts.size(); 51 | } 52 | 53 | public static final class PostItemViewHolder extends RecyclerView.ViewHolder { 54 | TextView tvUserName; 55 | TextView tvRelativeTimestamp; 56 | SimpleDraweeView sdvProfileImage; 57 | 58 | public PostItemViewHolder(View itemView) { 59 | super(itemView); 60 | 61 | tvUserName = (TextView) itemView.findViewById(R.id.tvUserName); 62 | tvRelativeTimestamp = (TextView) itemView.findViewById(R.id.tvRelativeTimestamp); 63 | sdvProfileImage = (SimpleDraweeView) itemView.findViewById(R.id.sdvProfileImage); 64 | } 65 | } 66 | } 67 | -------------------------------------------------------------------------------- /app/src/main/java/com/codepath/persistencedemo/core/MainApplication.java: -------------------------------------------------------------------------------- 1 | package com.codepath.persistencedemo.core; 2 | 3 | import android.app.Application; 4 | import com.facebook.drawee.backends.pipeline.Fresco; 5 | 6 | public class MainApplication extends Application { 7 | private static final String TAG = "MainApplication"; 8 | private static MainApplication instance; 9 | 10 | public static MainApplication sharedApplication() { 11 | assert(instance != null); 12 | return instance; 13 | } 14 | 15 | @Override 16 | public void onCreate() { 17 | instance = this; 18 | super.onCreate(); 19 | Fresco.initialize(this); 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /app/src/main/java/com/codepath/persistencedemo/helpers/Utils.java: -------------------------------------------------------------------------------- 1 | package com.codepath.persistencedemo.helpers; 2 | 3 | import com.codepath.persistencedemo.models.InstagramPost; 4 | import org.json.JSONArray; 5 | import org.json.JSONObject; 6 | 7 | import java.util.ArrayList; 8 | import java.util.List; 9 | 10 | public class Utils { 11 | private static final String TAG = "Utils"; 12 | 13 | public static List decodePostsFromJsonResponse(JSONObject jsonObject) { 14 | List posts = InstagramPost.fromJson(getDataJsonArray(jsonObject)); 15 | return posts == null ? new ArrayList() : posts; 16 | } 17 | 18 | private static JSONArray getDataJsonArray(JSONObject jsonObject) { 19 | JSONArray jsonArray = null; 20 | if (jsonObject != null) { 21 | jsonArray = jsonObject.optJSONArray("data"); 22 | } 23 | return jsonArray; 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /app/src/main/java/com/codepath/persistencedemo/models/InstagramPost.java: -------------------------------------------------------------------------------- 1 | package com.codepath.persistencedemo.models; 2 | 3 | import org.json.JSONArray; 4 | import org.json.JSONException; 5 | import org.json.JSONObject; 6 | 7 | import java.io.Serializable; 8 | import java.util.ArrayList; 9 | import java.util.List; 10 | 11 | public class InstagramPost implements Serializable { 12 | public InstagramUser user; 13 | public long createdTime; 14 | 15 | public static InstagramPost fromJson(JSONObject jsonObject) { 16 | if (jsonObject == null) { 17 | return null; 18 | } 19 | 20 | InstagramPost post = new InstagramPost(); 21 | 22 | try { 23 | post.user = InstagramUser.fromJson(jsonObject.getJSONObject("user")); 24 | post.createdTime = jsonObject.getLong("created_time"); 25 | } catch (JSONException e) { 26 | e.printStackTrace(); 27 | return null; 28 | } 29 | return post; 30 | } 31 | 32 | public static List fromJson(JSONArray jsonArray) { 33 | if (jsonArray == null) { 34 | return null; 35 | } 36 | 37 | List posts = new ArrayList<>(); 38 | for (int i = 0; i < jsonArray.length(); i++) { 39 | JSONObject jsonObject; 40 | try { 41 | jsonObject = jsonArray.getJSONObject(i); 42 | } catch (Exception e) { 43 | e.printStackTrace(); 44 | continue; 45 | } 46 | InstagramPost post = InstagramPost.fromJson(jsonObject); 47 | if (post != null) { 48 | posts.add(post); 49 | } 50 | } 51 | return posts; 52 | } 53 | } 54 | -------------------------------------------------------------------------------- /app/src/main/java/com/codepath/persistencedemo/models/InstagramUser.java: -------------------------------------------------------------------------------- 1 | package com.codepath.persistencedemo.models; 2 | 3 | import org.json.JSONArray; 4 | import org.json.JSONException; 5 | import org.json.JSONObject; 6 | 7 | import java.io.Serializable; 8 | import java.util.ArrayList; 9 | import java.util.List; 10 | 11 | public class InstagramUser implements Serializable { 12 | public String userName; 13 | public String profilePictureUrl; 14 | 15 | public static InstagramUser fromJson(JSONObject jsonObject) { 16 | if (jsonObject == null) { 17 | return null; 18 | } 19 | 20 | InstagramUser user = new InstagramUser(); 21 | 22 | try { 23 | user.userName = jsonObject.getString("username"); 24 | user.profilePictureUrl = jsonObject.getString("profile_picture"); 25 | } catch (JSONException e) { 26 | e.printStackTrace(); 27 | return null; 28 | } 29 | return user; 30 | } 31 | 32 | public static List fromJson(JSONArray jsonArray) { 33 | if (jsonArray == null) { 34 | return null; 35 | } 36 | 37 | List users = new ArrayList<>(); 38 | for (int i = 0; i < jsonArray.length(); i++) { 39 | JSONObject jsonObject; 40 | try { 41 | jsonObject = jsonArray.getJSONObject(i); 42 | } catch (Exception e) { 43 | e.printStackTrace(); 44 | continue; 45 | } 46 | InstagramUser user = InstagramUser.fromJson(jsonObject); 47 | if (user != null) { 48 | users.add(user); 49 | } 50 | } 51 | return users; 52 | } 53 | 54 | } 55 | -------------------------------------------------------------------------------- /app/src/main/java/com/codepath/persistencedemo/networking/InstagramClient.java: -------------------------------------------------------------------------------- 1 | package com.codepath.persistencedemo.networking; 2 | 3 | import com.loopj.android.http.AsyncHttpClient; 4 | import com.loopj.android.http.AsyncHttpResponseHandler; 5 | import com.loopj.android.http.RequestParams; 6 | 7 | public class InstagramClient { 8 | private static final String BASE_URL = "https://api.instagram.com/v1/"; 9 | private static final String CLIENT_ID = "e05c462ebd86446ea48a5af73769b602"; 10 | 11 | private static AsyncHttpClient client = new AsyncHttpClient(); 12 | 13 | public static void getPopularPosts(AsyncHttpResponseHandler responseHandler) { 14 | client.get(getAbsoluteUrl("media/popular"), getDefaultRequestParams(), responseHandler); 15 | } 16 | 17 | private static String getAbsoluteUrl(String relativeUrl) { 18 | return BASE_URL + relativeUrl; 19 | } 20 | 21 | private static RequestParams getDefaultRequestParams() { 22 | RequestParams params = new RequestParams(); 23 | params.put("client_id", CLIENT_ID); 24 | return params; 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /app/src/main/java/com/codepath/persistencedemo/persistence/InstagramClientDatabase.java: -------------------------------------------------------------------------------- 1 | package com.codepath.persistencedemo.persistence; 2 | 3 | import android.content.ContentValues; 4 | import android.content.Context; 5 | import android.database.Cursor; 6 | import android.database.sqlite.SQLiteDatabase; 7 | import android.database.sqlite.SQLiteOpenHelper; 8 | import android.util.Log; 9 | 10 | import com.codepath.persistencedemo.models.InstagramPost; 11 | import com.codepath.persistencedemo.models.InstagramUser; 12 | 13 | import java.util.ArrayList; 14 | import java.util.List; 15 | 16 | public class InstagramClientDatabase extends SQLiteOpenHelper { 17 | private static final String TAG = "InstagramClientDatabase"; 18 | 19 | // Constants 20 | private static final String DATABASE_NAME = "instagramClientDatabase"; 21 | private static final int DATABASE_VERSION = 1; 22 | 23 | private static final String TABLE_POSTS = "posts"; 24 | private static final String TABLE_USERS = "users"; 25 | 26 | // Posts table columns 27 | private static final String KEY_POST_ID = "id"; 28 | private static final String KEY_POST_USER_ID_FK = "userId"; 29 | private static final String KEY_POST_CREATED_TIME = "createdTime"; 30 | 31 | // Users table columns 32 | private static final String KEY_USER_ID = "id"; 33 | private static final String KEY_USER_NAME = "userName"; 34 | private static final String KEY_USER_PROFILE_PICTURE_URL = "profilePictureUrl"; 35 | 36 | private static String CREATE_POSTS_TABLE = "CREATE TABLE " + TABLE_POSTS + 37 | "(" + 38 | KEY_POST_ID + " INTEGER PRIMARY KEY," + 39 | KEY_POST_USER_ID_FK + " INTEGER REFERENCES " + TABLE_USERS + "," + 40 | KEY_POST_CREATED_TIME + " INTEGER" + 41 | ")"; 42 | 43 | private static String CREATE_USERS_TABLE = "CREATE TABLE " + TABLE_USERS + 44 | "(" + 45 | KEY_USER_ID + " INTEGER PRIMARY KEY," + 46 | KEY_USER_NAME + " TEXT," + 47 | KEY_USER_PROFILE_PICTURE_URL + " TEXT" + 48 | ")"; 49 | 50 | /* SELECT * FROM POSTS 51 | * LEFT OUTER JOIN USERS 52 | * ON POSTS.KEY_POST_USER_ID_FK = USERS.KEY_USER_ID 53 | */ 54 | private static String POSTS_SELECT_QUERY = 55 | String.format("SELECT * FROM %s LEFT OUTER JOIN %s ON %s.%s = %s.%s", 56 | TABLE_POSTS, 57 | TABLE_USERS, 58 | TABLE_POSTS, KEY_POST_USER_ID_FK, 59 | TABLE_USERS, KEY_USER_ID); 60 | 61 | // Singleton instance 62 | private static InstagramClientDatabase sInstance; 63 | 64 | /** 65 | * Constructor should be private to prevent direct instantiation. 66 | * make call to static method "getInstance()" instead. 67 | */ 68 | private InstagramClientDatabase(Context context) { 69 | super(context, DATABASE_NAME, null, DATABASE_VERSION); 70 | } 71 | 72 | public static synchronized InstagramClientDatabase getInstance(Context context) { 73 | if (sInstance == null) { 74 | // Use the application context, which will ensure that you 75 | // don't accidentally leak an Activity's context. 76 | // See this article for more information: http://bit.ly/6LRzfx 77 | sInstance = new InstagramClientDatabase(context.getApplicationContext()); 78 | } 79 | return sInstance; 80 | } 81 | 82 | @Override 83 | public void onConfigure(SQLiteDatabase db) { 84 | super.onConfigure(db); 85 | db.setForeignKeyConstraintsEnabled(true); 86 | } 87 | 88 | @Override 89 | public void onCreate(SQLiteDatabase db) { 90 | db.execSQL(CREATE_POSTS_TABLE); 91 | db.execSQL(CREATE_USERS_TABLE); 92 | } 93 | 94 | @Override 95 | public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 96 | if (oldVersion != newVersion) { 97 | db.execSQL("DROP TABLE IF EXISTS " + TABLE_POSTS); 98 | db.execSQL("DROP TABLE IF EXISTS " + TABLE_USERS); 99 | onCreate(db); 100 | } 101 | } 102 | 103 | // Create methods 104 | public void addInstagramPosts(List posts) { 105 | if (posts == null) { 106 | throw new IllegalArgumentException(String.format("Attemping to add a null list of posts to %s", DATABASE_NAME)); 107 | } 108 | 109 | // should be done off UI thread 110 | SQLiteDatabase db = getWritableDatabase(); 111 | db.beginTransaction(); 112 | try { 113 | for (InstagramPost post : posts) { 114 | long userId = addUser(post.user); 115 | 116 | ContentValues values = new ContentValues(); 117 | values.put(KEY_POST_USER_ID_FK, userId); 118 | values.put(KEY_POST_CREATED_TIME, post.createdTime); 119 | 120 | db.insert(TABLE_POSTS, null, values); 121 | } 122 | db.setTransactionSuccessful(); 123 | } catch (Exception e) { 124 | Log.wtf(TAG, "Error while trying to add posts to database"); 125 | e.printStackTrace(); 126 | } finally { 127 | db.endTransaction(); 128 | } 129 | } 130 | 131 | private long addUser(InstagramUser user) { 132 | if (user == null) { 133 | throw new IllegalArgumentException(String.format("Attemping to add a null user to %s", DATABASE_NAME)); 134 | } 135 | SQLiteDatabase db = getWritableDatabase(); 136 | 137 | ContentValues values = new ContentValues(); 138 | values.put(KEY_USER_NAME, user.userName); 139 | values.put(KEY_USER_PROFILE_PICTURE_URL, user.profilePictureUrl); 140 | 141 | return db.insert(TABLE_USERS, null, values); 142 | } 143 | 144 | // Read method 145 | public List getAllInstagramPosts() { 146 | List posts = new ArrayList<>(); 147 | 148 | SQLiteDatabase db = getReadableDatabase(); 149 | Cursor cursor = db.rawQuery(POSTS_SELECT_QUERY, null); 150 | try { 151 | if (cursor.moveToFirst()) { 152 | do { 153 | InstagramUser newUser = new InstagramUser(); 154 | newUser.userName = cursor.getString(cursor.getColumnIndex(KEY_USER_NAME)); 155 | newUser.profilePictureUrl = cursor.getString(cursor.getColumnIndex(KEY_USER_PROFILE_PICTURE_URL)); 156 | 157 | InstagramPost newPost = new InstagramPost(); 158 | newPost.createdTime = cursor.getLong(cursor.getColumnIndex(KEY_POST_CREATED_TIME)); 159 | newPost.user = newUser; 160 | posts.add(newPost); 161 | } while(cursor.moveToNext()); 162 | } 163 | } catch (Exception e) { 164 | Log.wtf(TAG, "Error while trying to get posts from database"); 165 | e.printStackTrace(); 166 | } finally { 167 | closeCursor(cursor); 168 | } 169 | 170 | return posts; 171 | } 172 | 173 | // Delete method 174 | public void emptyAllTables() { 175 | SQLiteDatabase db = getWritableDatabase(); 176 | db.beginTransaction(); 177 | try { 178 | db.delete(TABLE_POSTS, null, null); 179 | db.delete(TABLE_USERS, null, null); 180 | db.setTransactionSuccessful(); 181 | } catch (Exception e) { 182 | Log.wtf(TAG, "Error while trying to empty all tables in database"); 183 | e.printStackTrace(); 184 | } finally { 185 | db.endTransaction(); 186 | } 187 | } 188 | 189 | // Helper method 190 | public void closeCursor(Cursor cursor) { 191 | if (cursor != null && !cursor.isClosed()) { 192 | cursor.close(); 193 | } 194 | } 195 | } 196 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/gray_oval.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 6 | 7 | 12 | 13 | 14 | -------------------------------------------------------------------------------- /app/src/main/res/layout/layout_item_post.xml: -------------------------------------------------------------------------------- 1 | 2 | 12 | 13 | 21 | 22 | 34 | 35 | 48 | 49 | 50 | 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-------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | #A5A7AA 5 | #4B4F54 6 | #E6E6E6 7 | #125688 8 | #00538B 9 | #004876 10 | #BBBBBB 11 | 12 | -------------------------------------------------------------------------------- /app/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16dp 4 | 16dp 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | PersistenceDemo 3 | 4 | Hello world! 5 | Settings 6 | 7 | Loading cached data from SQLite! 8 | Refreshing data from Instagram API! 9 | 10 | 11 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | repositories { 5 | jcenter() 6 | } 7 | dependencies { 8 | classpath 'com.android.tools.build:gradle:1.1.1' 9 | 10 | // NOTE: Do not place your application dependencies here; they belong 11 | // in the individual module build.gradle files 12 | } 13 | } 14 | 15 | allprojects { 16 | repositories { 17 | jcenter() 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | # Default value: -Xmx10248m -XX:MaxPermSize=256m 13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 14 | 15 | # When configured, Gradle will run in incubating parallel mode. 16 | # This option should only be used with decoupled projects. More details, visit 17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 18 | # org.gradle.parallel=true -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/codepath/android-instagram-persistence/abdda5621033bcafaf1af045e7aa8e3144a642ed/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Wed Apr 10 15:27:10 PDT 2013 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # For Cygwin, ensure paths are in UNIX format before anything is touched. 46 | if $cygwin ; then 47 | [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 48 | fi 49 | 50 | # Attempt to set APP_HOME 51 | # Resolve links: $0 may be a link 52 | PRG="$0" 53 | # Need this for relative symlinks. 54 | while [ -h "$PRG" ] ; do 55 | ls=`ls -ld "$PRG"` 56 | link=`expr "$ls" : '.*-> $.*$$'` 57 | if expr "$link" : '/.*' > /dev/null; then 58 | PRG="$link" 59 | else 60 | PRG=`dirname "$PRG"`"/$link" 61 | fi 62 | done 63 | SAVED="`pwd`" 64 | cd "`dirname \"$PRG\"`/" >&- 65 | APP_HOME="`pwd -P`" 66 | cd "$SAVED" >&- 67 | 68 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 69 | 70 | # Determine the Java command to use to start the JVM. 71 | if [ -n "$JAVA_HOME" ] ; then 72 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 73 | # IBM's JDK on AIX uses strange locations for the executables 74 | JAVACMD="$JAVA_HOME/jre/sh/java" 75 | else 76 | JAVACMD="$JAVA_HOME/bin/java" 77 | fi 78 | if [ ! -x "$JAVACMD" ] ; then 79 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 80 | 81 | Please set the JAVA_HOME variable in your environment to match the 82 | location of your Java installation." 83 | fi 84 | else 85 | JAVACMD="java" 86 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 87 | 88 | Please set the JAVA_HOME variable in your environment to match the 89 | location of your Java installation." 90 | fi 91 | 92 | # Increase the maximum file descriptors if we can. 93 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 94 | MAX_FD_LIMIT=`ulimit -H -n` 95 | if [ $? -eq 0 ] ; then 96 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 97 | MAX_FD="$MAX_FD_LIMIT" 98 | fi 99 | ulimit -n $MAX_FD 100 | if [ $? -ne 0 ] ; then 101 | warn "Could not set maximum file descriptor limit: $MAX_FD" 102 | fi 103 | else 104 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 105 | fi 106 | fi 107 | 108 | # For Darwin, add options to specify how the application appears in the dock 109 | if $darwin; then 110 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 111 | fi 112 | 113 | # For Cygwin, switch paths to Windows format before running java 114 | if $cygwin ; then 115 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 116 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 158 | function splitJvmOpts() { 159 | JVM_OPTS=("$@") 160 | } 161 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 162 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 163 | 164 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 165 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | --------------------------------------------------------------------------------