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Code Issues Packages Projects Releases Wiki Activity

Preparing to fetch the subreddit info and save it to the database.

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This commit is contained in:
Alex Ning 2018-08-01 00:15:58 +08:00
parent 7f8ca49190
commit 9334d3860e
13 changed files with 288 additions and 58 deletions
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52
.idea/assetWizardSettings.xml generated
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@ -1,52 +0,0 @@
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<option name="children">
<map>
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<PersistentState>
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<map>
<entry key="url" value="jar:file:/home/alex/Android%20Studio/plugins/android/lib/android.jar!/images/material_design_icons/action/ic_account_circle_black_24dp.xml" />
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<entry key="color" value="9e9e9e" />
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<entry key="sourceFile" value="$USER_HOME$" />
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.idea/caches/build_file_checksums.ser generated
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2
app/src/main/java/ml/docilealligator/infinityforreddit/FetchComment.java
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@ -25,7 +25,7 @@ class FetchComment {
void queryComment(FetchCommentListener fetchCommentListener) {
mFetchCommentListener = fetchCommentListener;
StringRequest commentRequest = new StringRequest(Request.Method.GET, RedditUtils.getQueryCommentURI(subredditName, article), new Response.Listener<String>() {
StringRequest commentRequest = new StringRequest(Request.Method.GET, RedditUtils.getQueryCommentUri(subredditName, article), new Response.Listener<String>() {
@Override
public void onResponse(String response) {
mFetchCommentListener.onFetchCommentSuccess(response);

40
app/src/main/java/ml/docilealligator/infinityforreddit/FetchSubredditData.java Normal file
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@ -0,0 +1,40 @@
package ml.docilealligator.infinityforreddit;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
class FetchSubredditData {
interface FetchSubredditDataListener {
void onFetchSubredditDataSuccess(String response);
void onFetchSubredditDataFail();
}
private RequestQueue requestQueue;
private String subredditName;
private FetchSubredditDataListener mFetchSubredditDataListener;
FetchSubredditData(RequestQueue requestQueue, String subredditName) {
this.requestQueue = requestQueue;
this.subredditName = subredditName;
}
void querySubredditData(FetchSubredditDataListener fetchSubredditDataListener) {
mFetchSubredditDataListener = fetchSubredditDataListener;
StringRequest commentRequest = new StringRequest(Request.Method.GET, RedditUtils.getQuerySubredditDataUri(subredditName), new Response.Listener<String>() {
@Override
public void onResponse(String response) {
mFetchSubredditDataListener.onFetchSubredditDataSuccess(response);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
mFetchSubredditDataListener.onFetchSubredditDataFail();
}
}) {};
commentRequest.setTag(FetchSubredditData.class);
requestQueue.add(commentRequest);
}
}

4
app/src/main/java/ml/docilealligator/infinityforreddit/JSONUtils.java
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@ -58,6 +58,8 @@ class JSONUtils {
static final String COMMENT_KARMA_KEY = "comment_karma";
static final String DISPLAY_NAME = "display_name";
static final String SUBREDDIT_TYPE_KEY = "subreddit_type";
static final String SUBREDDIT_TYPE_VALUE_USER = "user";
static final String SUBSCRIBERS_KEY = "subscribers";
static final String PUBLIC_DESCRIPTION = "public_description";
static final String ACTIVE_USER_COUNT = "active_user_count";
}

65
app/src/main/java/ml/docilealligator/infinityforreddit/ParseSubredditData.java Normal file
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@ -0,0 +1,65 @@
package ml.docilealligator.infinityforreddit;
import android.os.AsyncTask;
import android.util.Log;
import org.json.JSONException;
import org.json.JSONObject;
class ParseSubredditData {
interface ParseSubredditDataListener {
void onParseSubredditDataSuccess();
void onParseSubredditDataFail();
}
private ParseSubredditDataListener mParseSubredditDataListener;
void parseComment(String response, ParseSubredditDataListener parseSubredditDataListener) {
mParseSubredditDataListener = parseSubredditDataListener;
new ParseSubredditDataAsyncTask(response, mParseSubredditDataListener).execute();
}
private static class ParseSubredditDataAsyncTask extends AsyncTask<Void, Void, Void> {
private JSONObject jsonResponse;
private boolean parseFailed;
private ParseSubredditDataListener parseSubredditDataListener;
ParseSubredditDataAsyncTask(String response, ParseSubredditDataListener parseSubredditDataListener){
this.parseSubredditDataListener = parseSubredditDataListener;
try {
jsonResponse = new JSONObject(response);
parseFailed = false;
} catch (JSONException e) {
Log.i("comment json error", e.getMessage());
parseSubredditDataListener.onParseSubredditDataFail();
}
}
@Override
protected Void doInBackground(Void... voids) {
try {
JSONObject data = jsonResponse.getJSONObject(JSONUtils.DATA_KEY);
String id = data.getString(JSONUtils.NAME_KEY);
String description = data.getString(JSONUtils.PUBLIC_DESCRIPTION);
String bannerImageUrl = data.getString(JSONUtils.BANNER_IMG_KEY);
String iconImageUrl = data.getString(JSONUtils.ICON_IMG_KEY);
int nSubscribers = data.getInt(JSONUtils.SUBSCRIBERS_KEY);
int nCurrentOnlineSubscribers = data.getInt(JSONUtils.ACTIVE_USER_COUNT);
} catch (JSONException e) {
parseFailed = true;
Log.i("parse", "SubredditData error");
parseSubredditDataListener.onParseSubredditDataFail();
}
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
if(!parseFailed) {
parseSubredditDataListener.onParseSubredditDataSuccess();
} else {
parseSubredditDataListener.onParseSubredditDataFail();
}
}
}
}

6
app/src/main/java/ml/docilealligator/infinityforreddit/RedditUtils.java
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@ -69,7 +69,11 @@ class RedditUtils {
return params;
}
static String getQueryCommentURI(String subredditName, String article) {
static String getQueryCommentUri(String subredditName, String article) {
return API_BASE_URI + "/" + subredditName + "/comments/" + article + ".json";
}
static String getQuerySubredditDataUri(String subredditName) {
return API_BASE_URI + "/r/" + subredditName + "/about.json";
}
}

19
app/src/main/java/ml/docilealligator/infinityforreddit/SubredditDao.java Normal file
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@ -0,0 +1,19 @@
package ml.docilealligator.infinityforreddit;
import android.arch.lifecycle.LiveData;
import android.arch.persistence.room.Dao;
import android.arch.persistence.room.Insert;
import android.arch.persistence.room.OnConflictStrategy;
import android.arch.persistence.room.Query;
@Dao
public interface SubredditDao {
@Insert(onConflict = OnConflictStrategy.REPLACE)
void insert(SubredditData SubredditData);
@Query("DELETE FROM subreddits")
void deleteAllSubreddits();
@Query("SELECT * from subreddits WHERE id = :id")
LiveData<SubredditData> getSubreddit(String id);
}

63
app/src/main/java/ml/docilealligator/infinityforreddit/SubredditData.java Normal file
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@ -0,0 +1,63 @@
package ml.docilealligator.infinityforreddit;
import android.arch.persistence.room.ColumnInfo;
import android.arch.persistence.room.Entity;
import android.arch.persistence.room.PrimaryKey;
import android.support.annotation.NonNull;
@Entity(tableName = "subreddits")
class SubredditData {
@PrimaryKey
@NonNull
@ColumnInfo(name = "id")
private String id;
@ColumnInfo(name = "name")
private String name;
@ColumnInfo(name = "icon_url")
private String iconUrl;
@ColumnInfo(name = "banner_url")
private String bannerUrl;
@ColumnInfo(name = "description")
private String description;
@ColumnInfo(name = "subscribers_count")
private int nSubscribers;
SubredditData(@NonNull String id, String name, String iconUrl, String bannerUrl, String description, int nSubscribers) {
this.id = id;
this.name = name;
this.iconUrl = iconUrl;
this.bannerUrl = bannerUrl;
this.description = description;
this.nSubscribers = nSubscribers;
}
@NonNull
public String getId() {
return id;
}
public String getName() {
return name;
}
public String getIconUrl() {
return iconUrl;
}
public String getBannerUrl() {
return bannerUrl;
}
public String getDescription() {
return description;
}
public int getnSubscribers() {
return nSubscribers;
}
}

39
app/src/main/java/ml/docilealligator/infinityforreddit/SubredditRepository.java Normal file
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@ -0,0 +1,39 @@
package ml.docilealligator.infinityforreddit;
import android.app.Application;
import android.arch.lifecycle.LiveData;
import android.os.AsyncTask;
public class SubredditRepository {
private SubredditDao mSubredditDao;
private LiveData<SubredditData> mSubredditData;
SubredditRepository(Application application, String id) {
SubredditRoomDatabase db = SubredditRoomDatabase.getDatabase(application);
mSubredditDao = db.subredditDao();
mSubredditData = mSubredditDao.getSubreddit(id);
}
LiveData<SubredditData> getSubredditData() {
return mSubredditData;
}
public void insert(SubredditData subredditData) {
new SubredditRepository.insertAsyncTask(mSubredditDao).execute(subredditData);
}
private static class insertAsyncTask extends AsyncTask<SubredditData, Void, Void> {
private SubredditDao mAsyncTaskDao;
insertAsyncTask(SubredditDao dao) {
mAsyncTaskDao = dao;
}
@Override
protected Void doInBackground(final SubredditData... params) {
mAsyncTaskDao.insert(params[0]);
return null;
}
}
}

26
app/src/main/java/ml/docilealligator/infinityforreddit/SubredditRoomDatabase.java Normal file
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@ -0,0 +1,26 @@
package ml.docilealligator.infinityforreddit;
import android.arch.persistence.room.Database;
import android.arch.persistence.room.Room;
import android.arch.persistence.room.RoomDatabase;
import android.content.Context;
@Database(entities = {SubredditData.class}, version = 1)
public abstract class SubredditRoomDatabase extends RoomDatabase{
private static SubredditRoomDatabase INSTANCE;
public abstract SubredditDao subredditDao();
public static SubredditRoomDatabase getDatabase(final Context context) {
if(INSTANCE == null) {
synchronized (SubredditRoomDatabase.class) {
if(INSTANCE == null) {
INSTANCE = Room.databaseBuilder(context.getApplicationContext(),
SubredditRoomDatabase.class, "subreddits")
.build();
}
}
}
return INSTANCE;
}
}

24
app/src/main/java/ml/docilealligator/infinityforreddit/SubredditViewModel.java Normal file
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@ -0,0 +1,24 @@
package ml.docilealligator.infinityforreddit;
import android.app.Application;
import android.arch.lifecycle.AndroidViewModel;
import android.arch.lifecycle.LiveData;
public class SubredditViewModel extends AndroidViewModel {
private SubredditRepository mSubredditRepository;
private LiveData<SubredditData> mSubredditData;
public SubredditViewModel(Application application, String id) {
super(application);
mSubredditRepository = new SubredditRepository(application, id);
mSubredditData = mSubredditRepository.getSubredditData();
}
public LiveData<SubredditData> getSubredditData() {
return mSubredditData;
}
public void insert(SubredditData subredditData) {
mSubredditRepository.insert(subredditData);
}
}

6
app/src/main/java/ml/docilealligator/infinityforreddit/ViewSubredditDetailActivity.java
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@ -18,8 +18,8 @@ public class ViewSubredditDetailActivity extends AppCompatActivity {
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
final CollapsingToolbarLayout collapsingToolbarLayout = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar_layout_view_subreddit_detail_activity);
AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.app_bar_layout_view_subreddit_detail_activity);
final CollapsingToolbarLayout collapsingToolbarLayout = findViewById(R.id.collapsing_toolbar_layout_view_subreddit_detail_activity);
AppBarLayout appBarLayout = findViewById(R.id.app_bar_layout_view_subreddit_detail_activity);
appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
boolean isShow = true;
int scrollRange = -1;
@ -39,7 +39,7 @@ public class ViewSubredditDetailActivity extends AppCompatActivity {
}
});
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {