Android Memo 어플 소스를 RecyclerView 를 이용하여 수정했다.
SQLite 함수 일부분을 수정한 것은 같이 포함시켰다.
DBHelper.java 수정
public class DbHelper extends SQLiteOpenHelper {
public static final String DATABASE_NAME = "data2";
public static final String TABLE_NAME = "comments_table";
public static final String C_ID = "_id";
public static final String TITLE = "title";
public static final String TYPE = "type";
public static final String DETAIL = "description";
public static final String TIME = "time";
public static final String DATE = "date";
public static final int DATABASE_VERSION = 2;
private final String createDB = "create table if not exists " + TABLE_NAME + " ( "
+ C_ID + " integer primary key autoincrement, "
+ TITLE + " text, "
+ DETAIL + " text, "
+ TYPE + " text, "
+ TIME + " text, "
+ DATE + " text)";
public DbHelper(Context context){
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(createDB);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("drop table " + TABLE_NAME);
}
public Cursor LoadSQLiteDBCursor() {
SQLiteDatabase db = this.getReadableDatabase();
db.beginTransaction();
// Select All Query
String selectQuery = "SELECT _id,title,type,description,time,date FROM " + TABLE_NAME;
Cursor cursor = null;
try {
cursor = db.rawQuery(selectQuery, null);
db.setTransactionSuccessful();
} catch (Exception e) {
e.printStackTrace();
} finally {
db.endTransaction();
}
return cursor;
}
}
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MainActivity.java 수정
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
Context context;
SQLiteDatabase db;
DbHelper mDbHelper;
private RecyclerView listView;
private ArrayList<Memo_Item> memoItemList= new ArrayList<>(); // SQLite에서 가져온 원본 데이터 리스트
RecyclerView.Adapter listViewAdapter; // ListViewAdapter 대신 RecyclerView.Adapter
RecyclerView.LayoutManager layoutManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context = this.getBaseContext();
listView = (RecyclerView)findViewById(R.id.commentslist);
listView.setHasFixedSize(true);
memoItemList.clear(); // 데이터 초기화
mDbHelper = new DbHelper(this);
db= mDbHelper.getReadableDatabase();
db.beginTransaction();
Cursor cursor = mDbHelper.LoadSQLiteDBCursor();
try {
cursor.moveToFirst();
System.out.println("SQLiteDB 개수 = " + cursor.getCount());
while (!cursor.isAfterLast()) {
addGroupItem(cursor.getLong(0),cursor.getString(1),cursor.getString(2),
cursor.getString(3),cursor.getString(4),cursor.getString(5));
cursor.moveToNext();
}
db.setTransactionSuccessful();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (cursor != null) {
cursor.close();
db.endTransaction();
}
}
// Set Layout Manager
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
listView.setLayoutManager(layoutManager);
listViewAdapter = new ListViewAdapter(memoItemList, this); // Adapter 생성
listView.setAdapter(listViewAdapter); // 어댑터를 리스트뷰에 세팅
}
public void addGroupItem(Long uid, String title, String memo_type, String detail, String time, String date){
Memo_Item item = new Memo_Item();
item.setUid(uid);
item.setTitle(title);
item.setMemo_type(memo_type);
item.setDetail(detail);
item.setTime(time);
item.setDate(date);
memoItemList.add(item);
}
@Override
public void onBackPressed() {
moveTaskToBack(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
case R.id.action_new:
Intent openCreateNote = new Intent(MainActivity.this, CreateNote.class);
startActivity(openCreateNote);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
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Memo_Item.java 클래스 만들기
public class Memo_Item {
private Long uid;
private String title; // 제목
private String memo_type; // 메모 타입
private String detail; // 내용
private String time; // 시간
private String date; // 작성일자
public Memo_Item() {
}
public Memo_Item(Long uid, String title, String memo_type, String detail, String time, String date) {
this.uid = uid;
this.title = title;
this.memo_type = memo_type;
this.detail = detail;
this.time = time;
this.date = date;
}
public Long getUid() {
return uid;
}
public void setUid(Long uid) {
this.uid = uid;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getMemo_type() {
return memo_type;
}
public void setMemo_type(String memo_type) {
this.memo_type = memo_type;
}
public String getDetail() {
return detail;
}
public void setDetail(String detail) {
this.detail = detail;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
}
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ListViewAdapter 어댑터 클래스 만들기
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.recyclerview.widget.RecyclerView;
import com.bumptech.glide.Glide;
import java.util.ArrayList;
public class ListViewAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
Context mContext;
private ArrayList<Memo_Item> IvList;
int Position;
public ListViewAdapter(ArrayList<Memo_Item> items, Context context) {
IvList = items;
mContext = context;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_entry, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
// ListView의 getView 부분을 담당하는 메소드
((ViewHolder) holder).onBind(IvList.get(position));
}
@Override
public int getItemCount() {
return IvList.size(); // 데이터 개수 리턴
}
public class ViewHolder extends RecyclerView.ViewHolder {
public TextView mTitle;
public TextView memoType;
public TextView mDetail;
public ImageView mImage;
public TextView mTime;
public TextView mDate;
public ViewHolder(View itemView) {
super(itemView);
// 화면에 표시될 View 로부터 위젯에 대한 참조 획득
mTitle = itemView.findViewById(R.id.title);
memoType = itemView.findViewById(R.id.type);
mDetail = itemView.findViewById(R.id.Detail);
mImage = itemView.findViewById(R.id.alarmImage);
mTime = itemView.findViewById(R.id.time);
mDate = itemView.findViewById(R.id.date);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Position = getAdapterPosition();
Intent intent = new Intent(mContext, View_Note.class);
intent.putExtra(mContext.getString(R.string.row_id),IvList.get(Position).getUid());
Log.e("rowID", String.valueOf(IvList.get(Position).getUid()));
mContext.startActivity(intent);
}
});
}
public void onBind(Memo_Item item) {
mTitle.setText(item.getTitle());
memoType.setText(item.getMemo_type());
mDetail.setText(item.getDetail());
int resourceId = R.drawable.ic_action_alarms;
Glide.with(mContext).load(resourceId).into(mImage);
mTime.setText(item.getTime());
mDate.setText(item.getDate());
}
}
}
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activity_main.xml 수정
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
>
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/commentslist"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</RelativeLayout>
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build.gradle 수정
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.tistory.link2me.memo"
minSdkVersion 19
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'androidx.recyclerview:recyclerview:1.0.0'
implementation 'androidx.cardview:cardview:1.0.0'
implementation 'gun0912.ted:tedpermission:2.0.0'
implementation 'com.github.bumptech.glide:glide:3.8.0' // 이미지 라이브러리
}
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나머지는 수정한 사항이 없다.
기존 소스코드를 이렇게 수정하면 된다.
memo_src.zip
