From 7887e2bbe869f336051b89330397308c17f38ce9 Mon Sep 17 00:00:00 2001 From: pc4y93prn <2727849611@qq.com> Date: Thu, 24 Nov 2022 19:33:49 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BB=A3=E7=A0=81?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../com/example/noteapp281/AddActivity.java | 61 +++++ .../com/example/noteapp281/EditActivity.java | 71 ++++++ .../com/example/noteapp281/MainActivity.java | 191 +++++++++++++++ .../example/noteapp281/NoteDbOpenHelper.java | 130 ++++++++++ .../example/noteapp281/adapter/MyAdapter.java | 230 ++++++++++++++++++ .../com/example/noteapp281/bean/Note.java | 54 ++++ .../com/example/noteapp281/util/SpfUtil.java | 38 +++ .../example/noteapp281/util/ToastUtil.java | 15 ++ 8 files changed, 790 insertions(+) create mode 100644 src/NoteApp281/app/src/main/java/com/example/noteapp281/AddActivity.java create mode 100644 src/NoteApp281/app/src/main/java/com/example/noteapp281/EditActivity.java create mode 100644 src/NoteApp281/app/src/main/java/com/example/noteapp281/MainActivity.java create mode 100644 src/NoteApp281/app/src/main/java/com/example/noteapp281/NoteDbOpenHelper.java create mode 100644 src/NoteApp281/app/src/main/java/com/example/noteapp281/adapter/MyAdapter.java create mode 100644 src/NoteApp281/app/src/main/java/com/example/noteapp281/bean/Note.java create mode 100644 src/NoteApp281/app/src/main/java/com/example/noteapp281/util/SpfUtil.java create mode 100644 src/NoteApp281/app/src/main/java/com/example/noteapp281/util/ToastUtil.java diff --git a/src/NoteApp281/app/src/main/java/com/example/noteapp281/AddActivity.java b/src/NoteApp281/app/src/main/java/com/example/noteapp281/AddActivity.java new file mode 100644 index 0000000..bda5717 --- /dev/null +++ b/src/NoteApp281/app/src/main/java/com/example/noteapp281/AddActivity.java @@ -0,0 +1,61 @@ +package com.example.noteapp281; + +import androidx.appcompat.app.AppCompatActivity; + +import android.os.Bundle; +import android.text.TextUtils; +import android.view.View; +import android.widget.EditText; + +import com.example.noteapp281.bean.Note; +import com.example.noteapp281.util.ToastUtil; + +import java.text.SimpleDateFormat; +import java.util.Date; + +public class AddActivity extends AppCompatActivity { + + private EditText etTitle,etContent; + + private NoteDbOpenHelper mNoteDbOpenHelper; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.activity_add); + + etTitle = findViewById(R.id.et_title); + etContent = findViewById(R.id.et_content); + mNoteDbOpenHelper = new NoteDbOpenHelper(this); + + } + + public void add(View view) { + String title = etTitle.getText().toString(); + String content = etContent.getText().toString(); + if (TextUtils.isEmpty(title)) { + ToastUtil.toastShort(this, "标题不能为空！"); + return; + } + + Note note = new Note(); + + note.setTitle(title); + note.setContent(content); + note.setCreatedTime(getCurrentTimeFormat()); + long row = mNoteDbOpenHelper.insertData(note); + if (row != -1) { + ToastUtil.toastShort(this,"添加成功！"); + this.finish(); + }else { + ToastUtil.toastShort(this,"添加失败！"); + } + + } + + private String getCurrentTimeFormat() { + SimpleDateFormat simpleDateFormat = new SimpleDateFormat("YYYY年MM月dd HH:mm:ss"); + Date date = new Date(); + return simpleDateFormat.format(date); + } +} \ No newline at end of file diff --git a/src/NoteApp281/app/src/main/java/com/example/noteapp281/EditActivity.java b/src/NoteApp281/app/src/main/java/com/example/noteapp281/EditActivity.java new file mode 100644 index 0000000..fc3871a --- /dev/null +++ b/src/NoteApp281/app/src/main/java/com/example/noteapp281/EditActivity.java @@ -0,0 +1,71 @@ +package com.example.noteapp281; + +import androidx.appcompat.app.AppCompatActivity; + +import android.content.Intent; +import android.os.Bundle; +import android.text.TextUtils; +import android.view.View; +import android.widget.EditText; + +import com.example.noteapp281.bean.Note; +import com.example.noteapp281.util.ToastUtil; + +import java.text.SimpleDateFormat; +import java.util.Date; + +public class EditActivity extends AppCompatActivity { + + private Note note; + private EditText etTitle,etContent; + + private NoteDbOpenHelper mNoteDbOpenHelper; + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.activity_edit); + + etTitle = findViewById(R.id.et_title); + etContent = findViewById(R.id.et_content); + + initData(); + + } + + private void initData() { + Intent intent = getIntent(); + note = (Note) intent.getSerializableExtra("note"); + if (note != null) { + etTitle.setText(note.getTitle()); + etContent.setText(note.getContent()); + } + mNoteDbOpenHelper = new NoteDbOpenHelper(this); + } + + public void save(View view) { + String title = etTitle.getText().toString(); + String content = etContent.getText().toString(); + if (TextUtils.isEmpty(title)) { + ToastUtil.toastShort(this, "标题不能为空！"); + return; + } + + note.setTitle(title); + note.setContent(content); + note.setCreatedTime(getCurrentTimeFormat()); + long rowId = mNoteDbOpenHelper.updateData(note); + if (rowId != -1) { + ToastUtil.toastShort(this, "修改成功！"); + this.finish(); + }else{ + ToastUtil.toastShort(this, "修改失败！"); + } + + } + + private String getCurrentTimeFormat() { + SimpleDateFormat sdf = new SimpleDateFormat("YYYY年MM月dd日 HH:mm:ss"); + Date date = new Date(); + return sdf.format(date); + } +} \ No newline at end of file diff --git a/src/NoteApp281/app/src/main/java/com/example/noteapp281/MainActivity.java b/src/NoteApp281/app/src/main/java/com/example/noteapp281/MainActivity.java new file mode 100644 index 0000000..fc6b591 --- /dev/null +++ b/src/NoteApp281/app/src/main/java/com/example/noteapp281/MainActivity.java @@ -0,0 +1,191 @@ +package com.example.noteapp281; + +import android.app.SearchManager; +import android.content.Context; +import android.content.Intent; +import android.os.Bundle; +import android.view.Menu; +import android.view.MenuItem; +import android.view.View; + +import androidx.annotation.NonNull; +import androidx.appcompat.app.AppCompatActivity; +import androidx.appcompat.widget.SearchView; +import androidx.recyclerview.widget.GridLayoutManager; +import androidx.recyclerview.widget.LinearLayoutManager; +import androidx.recyclerview.widget.RecyclerView; + +import com.example.noteapp281.adapter.MyAdapter; +import com.example.noteapp281.bean.Note; +import com.example.noteapp281.util.SpfUtil; +import com.google.android.material.floatingactionbutton.FloatingActionButton; + +import java.text.SimpleDateFormat; +import java.util.ArrayList; +import java.util.Date; +import java.util.List; + +public class MainActivity extends AppCompatActivity { + + private RecyclerView mRecyclerView; + private FloatingActionButton mBtnAdd; + private List mNotes; + private MyAdapter mMyAdapter; + + private NoteDbOpenHelper mNoteDbOpenHelper; + + public static final int MODE_LINEAR = 0; + public static final int MODE_GRID = 1; + + public static final String KEY_LAYOUT_MODE = "key_layout_mode"; + + private int currentListLayoutMode = MODE_LINEAR; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.activity_main); + initView(); + initData(); + initEvent(); + } + + @Override + protected void onResume() { + super.onResume(); + refreshDataFromDb(); + setListLayout(); + } + + private void setListLayout() { + currentListLayoutMode = SpfUtil.getIntWithDefault(this, KEY_LAYOUT_MODE, MODE_LINEAR); + if (currentListLayoutMode == MODE_LINEAR) { + setToLinearList(); + }else{ + setToGridList(); + } + } + + private void refreshDataFromDb() { + mNotes = getDataFromDB(); + mMyAdapter.refreshData(mNotes); + } + + private void initEvent() { + mMyAdapter = new MyAdapter(this, mNotes); + mRecyclerView.setAdapter(mMyAdapter); +// LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this); +// mRecyclerView.setLayoutManager(linearLayoutManager); +// mMyAdapter.setViewType(MyAdapter.TYPE_LINEAR_LAYOUT); + setListLayout(); + + } + + private void initData() { + mNotes = new ArrayList<>(); + mNoteDbOpenHelper = new NoteDbOpenHelper(this); +// +// for (int i = 0; i < 30; i++) { +// Note note = new Note(); +// note.setTitle("这是标题"+i); +// note.setContent("这是内容"+i); +// note.setCreatedTime(getCurrentTimeFormat()); +// mNotes.add(note); +// } + +// mNotes = getDataFromDB(); + + } + + private List getDataFromDB() { + return mNoteDbOpenHelper.queryAllFromDb(); + } + + private String getCurrentTimeFormat() { + SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd HH:mm:ss"); + Date date = new Date(); + return simpleDateFormat.format(date); + } + + private void initView() { + mRecyclerView = findViewById(R.id.rlv); + } + + + public void add(View view) { + Intent intent = new Intent(this, AddActivity.class); + startActivity(intent); + } + + @Override + public boolean onCreateOptionsMenu(Menu menu) { + getMenuInflater().inflate(R.menu.menu_main, menu); + SearchView searchView = (SearchView) menu.findItem(R.id.menu_search).getActionView(); + + searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { + @Override + public boolean onQueryTextSubmit(String query) { + return false; + } + + @Override + public boolean onQueryTextChange(String newText) { + mNotes = mNoteDbOpenHelper.queryFromDbByTitle(newText); + mMyAdapter.refreshData(mNotes); + return true; + } + }); + return super.onCreateOptionsMenu(menu); + } + + + @Override + public boolean onOptionsItemSelected(@NonNull MenuItem item) { + item.setChecked(true); + + switch (item.getItemId()) { + + case R.id.menu_linear: + setToLinearList(); + currentListLayoutMode = MODE_LINEAR; + SpfUtil.saveInt(this,KEY_LAYOUT_MODE,MODE_LINEAR); + + return true; + case R.id.menu_grid: + + setToGridList(); + currentListLayoutMode = MODE_GRID; + SpfUtil.saveInt(this,KEY_LAYOUT_MODE,MODE_GRID); + return true; + default: + return super.onOptionsItemSelected(item); + + } + } + + private void setToLinearList() { + RecyclerView.LayoutManager linearLayoutManager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false); + mRecyclerView.setLayoutManager(linearLayoutManager); + mMyAdapter.setViewType(MyAdapter.TYPE_LINEAR_LAYOUT); + mMyAdapter.notifyDataSetChanged(); + } + + + private void setToGridList() { + RecyclerView.LayoutManager gridLayoutManager = new GridLayoutManager(this, 2); + mRecyclerView.setLayoutManager(gridLayoutManager); + mMyAdapter.setViewType(MyAdapter.TYPE_GRID_LAYOUT); + mMyAdapter.notifyDataSetChanged(); + } + + @Override + public boolean onPrepareOptionsMenu(Menu menu) { + if (currentListLayoutMode == MODE_LINEAR) { + MenuItem item = menu.findItem(R.id.menu_linear); + item.setChecked(true); + } else { + menu.findItem(R.id.menu_grid).setChecked(true); + } + return super.onPrepareOptionsMenu(menu); + } +} \ No newline at end of file diff --git a/src/NoteApp281/app/src/main/java/com/example/noteapp281/NoteDbOpenHelper.java b/src/NoteApp281/app/src/main/java/com/example/noteapp281/NoteDbOpenHelper.java new file mode 100644 index 0000000..75841a4 --- /dev/null +++ b/src/NoteApp281/app/src/main/java/com/example/noteapp281/NoteDbOpenHelper.java @@ -0,0 +1,130 @@ +package com.example.noteapp281; + +import android.content.ContentValues; +import android.content.Context; +import android.database.Cursor; +import android.database.sqlite.SQLiteDatabase; +import android.database.sqlite.SQLiteOpenHelper; +import android.text.TextUtils; + +import com.example.noteapp281.bean.Note; + +import java.util.ArrayList; +import java.util.List; + +public class NoteDbOpenHelper extends SQLiteOpenHelper { + + private static final String DB_NAME = "noteSQLite.db"; + private static final String TABLE_NAME_NOTE = "note"; + + private static final String CREATE_TABLE_SQL = "create table " + TABLE_NAME_NOTE + " (id integer primary key autoincrement, title text, content text, create_time text)"; + + + public NoteDbOpenHelper(Context context) { + super(context, DB_NAME, null, 1); + } + + + + @Override + public void onCreate(SQLiteDatabase db) { + db.execSQL(CREATE_TABLE_SQL); + + } + + @Override + public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { + + } + + public long insertData(Note note) { + + SQLiteDatabase db = getWritableDatabase(); + + ContentValues values = new ContentValues(); + values.put("title", note.getTitle()); + values.put("content", note.getContent()); + values.put("create_time", note.getCreatedTime()); + + return db.insert(TABLE_NAME_NOTE, null, values); + } + + public int deleteFromDbById(String id) { + SQLiteDatabase db = getWritableDatabase(); +// return db.delete(TABLE_NAME_NOTE, "id = ?", new String[]{id}); +// return db.delete(TABLE_NAME_NOTE, "id is ?", new String[]{id}); + return db.delete(TABLE_NAME_NOTE, "id like ?", new String[]{id}); + } + + public int updateData(Note note) { + + SQLiteDatabase db = getWritableDatabase(); + + ContentValues values = new ContentValues(); + values.put("title", note.getTitle()); + values.put("content", note.getContent()); + values.put("create_time", note.getCreatedTime()); + + return db.update(TABLE_NAME_NOTE, values, "id like ?", new String[]{note.getId()}); + } + + public List queryAllFromDb() { + + SQLiteDatabase db = getWritableDatabase(); + List noteList = new ArrayList<>(); + + Cursor cursor = db.query(TABLE_NAME_NOTE, null, null, null, null, null, null); + if (cursor != null) { + while (cursor.moveToNext()) { + String id = cursor.getString(cursor.getColumnIndex("id")); + String title = cursor.getString(cursor.getColumnIndex("title")); + String content = cursor.getString(cursor.getColumnIndex("content")); + String createTime = cursor.getString(cursor.getColumnIndex("create_time")); + + Note note = new Note(); + note.setId(id); + note.setTitle(title); + note.setContent(content); + note.setCreatedTime(createTime); + + noteList.add(note); + } + cursor.close(); + } + + return noteList; + + } + + public List queryFromDbByTitle(String title) { + if (TextUtils.isEmpty(title)) { + return queryAllFromDb(); + } + + SQLiteDatabase db = getWritableDatabase(); + List noteList = new ArrayList<>(); + + Cursor cursor = db.query(TABLE_NAME_NOTE, null, "title like ?", new String[]{"%"+title+"%"}, null, null, null); + + if (cursor != null) { + + while (cursor.moveToNext()) { + String id = cursor.getString(cursor.getColumnIndex("id")); + String title2 = cursor.getString(cursor.getColumnIndex("title")); + String content = cursor.getString(cursor.getColumnIndex("content")); + String createTime = cursor.getString(cursor.getColumnIndex("create_time")); + + Note note = new Note(); + note.setId(id); + note.setTitle(title2); + note.setContent(content); + note.setCreatedTime(createTime); + noteList.add(note); + } + cursor.close(); + } + return noteList; + } + + +} diff --git a/src/NoteApp281/app/src/main/java/com/example/noteapp281/adapter/MyAdapter.java b/src/NoteApp281/app/src/main/java/com/example/noteapp281/adapter/MyAdapter.java new file mode 100644 index 0000000..72cb160 --- /dev/null +++ b/src/NoteApp281/app/src/main/java/com/example/noteapp281/adapter/MyAdapter.java @@ -0,0 +1,230 @@ +package com.example.noteapp281.adapter; + +import android.app.Dialog; +import android.content.Context; +import android.content.Intent; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.TextView; + +import androidx.annotation.NonNull; +import androidx.recyclerview.widget.RecyclerView; + +import com.example.noteapp281.EditActivity; +import com.example.noteapp281.NoteDbOpenHelper; +import com.example.noteapp281.R; +import com.example.noteapp281.bean.Note; +import com.example.noteapp281.util.ToastUtil; + +import java.util.List; + +public class MyAdapter extends RecyclerView.Adapter { + + private List mBeanList; + private LayoutInflater mLayoutInflater; + private Context mContext; + + private NoteDbOpenHelper mNoteDbOpenHelper; + + private int viewType; + + public static int TYPE_LINEAR_LAYOUT = 0; + public static int TYPE_GRID_LAYOUT = 1; + + public MyAdapter(Context context, List mBeanList){ + this.mBeanList = mBeanList; + this.mContext = context; + mLayoutInflater = LayoutInflater.from(mContext); + mNoteDbOpenHelper = new NoteDbOpenHelper(mContext); + } + + public void setViewType(int viewType) { + this.viewType = viewType; + } + + @Override + public int getItemViewType(int position) { + return viewType; + } + + @NonNull + @Override + public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { + if(viewType == TYPE_LINEAR_LAYOUT){ + View view = mLayoutInflater.inflate(R.layout.list_item_layout, parent, false); + MyViewHolder myViewHolder = new MyViewHolder(view); + return myViewHolder; + }else if(viewType == TYPE_GRID_LAYOUT){ + View view = mLayoutInflater.inflate(R.layout.list_item_grid_layout, parent, false); + MyGridViewHolder myGridViewHolder = new MyGridViewHolder(view); + return myGridViewHolder; + } + + return null; + } + + @Override + public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) { + if (holder == null) { + return; + } + if(holder instanceof MyViewHolder){ + bindMyViewHolder((MyViewHolder) holder, position); + } else if (holder instanceof MyGridViewHolder) { + bindGridViewHolder((MyGridViewHolder) holder, position); + } + } + + private void bindMyViewHolder(MyViewHolder holder, int position) { + Note note = mBeanList.get(position); + holder.mTvTitle.setText(note.getTitle()); + holder.mTvContent.setText(note.getContent()); + holder.mTvTime.setText(note.getCreatedTime()); + holder.rlContainer.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + + Intent intent = new Intent(mContext, EditActivity.class); + intent.putExtra("note", note); + mContext.startActivity(intent); + } + }); + + holder.rlContainer.setOnLongClickListener(new View.OnLongClickListener() { + @Override + public boolean onLongClick(View v) { + // 弹出弹窗 + Dialog dialog = new Dialog(mContext, android.R.style.ThemeOverlay_Material_Dialog_Alert); + View dialogView = mLayoutInflater.inflate(R.layout.list_item_dialog_layout, null); + TextView tvDelete = dialogView.findViewById(R.id.tv_delete); + TextView tvEdit = dialogView.findViewById(R.id.tv_edit); + + tvDelete.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + int row = mNoteDbOpenHelper.deleteFromDbById(note.getId()); + if (row > 0) { + removeData(position); + } + dialog.dismiss(); + } + }); + + + tvEdit.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + Intent intent = new Intent(mContext, EditActivity.class); + intent.putExtra("note", note); + mContext.startActivity(intent); + dialog.dismiss(); + } + }); + dialog.setContentView(dialogView); + dialog.setCanceledOnTouchOutside(true); + dialog.show(); + return true; + } + }); + } + + + private void bindGridViewHolder(MyGridViewHolder holder, int position) { + Note note = mBeanList.get(position); + holder.mTvTitle.setText(note.getTitle()); + holder.mTvContent.setText(note.getContent()); + holder.mTvTime.setText(note.getCreatedTime()); + holder.rlContainer.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + + Intent intent = new Intent(mContext, EditActivity.class); + intent.putExtra("note", note); + mContext.startActivity(intent); + } + }); + + holder.rlContainer.setOnLongClickListener(new View.OnLongClickListener() { + @Override + public boolean onLongClick(View v) { + // 弹出弹窗 + Dialog dialog = new Dialog(mContext, android.R.style.ThemeOverlay_Material_Dialog_Alert); + View dialogView = mLayoutInflater.inflate(R.layout.list_item_dialog_layout, null); + TextView tvDelete = dialogView.findViewById(R.id.tv_delete); + TextView tvEdit = dialogView.findViewById(R.id.tv_edit); + + tvDelete.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + int row = mNoteDbOpenHelper.deleteFromDbById(note.getId()); + if (row > 0) { + removeData(position); + } + dialog.dismiss(); + } + }); + + + tvEdit.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + Intent intent = new Intent(mContext, EditActivity.class); + intent.putExtra("note", note); + mContext.startActivity(intent); + dialog.dismiss(); + } + }); + dialog.setContentView(dialogView); + dialog.setCanceledOnTouchOutside(true); + dialog.show(); + return true; + } + }); + } + + @Override + public int getItemCount() { + return mBeanList.size(); + } + + public void refreshData(List notes) { + this.mBeanList = notes; + notifyDataSetChanged(); + } + + public void removeData(int pos) { + mBeanList.remove(pos); + notifyItemRemoved(pos); + } + + class MyViewHolder extends RecyclerView.ViewHolder{ + TextView mTvTitle; + TextView mTvContent; + TextView mTvTime; + ViewGroup rlContainer; + public MyViewHolder(@NonNull View itemView) { + super(itemView); + this.mTvTitle = itemView.findViewById(R.id.tv_title); + this.mTvContent = itemView.findViewById(R.id.tv_content); + this.mTvTime = itemView.findViewById(R.id.tv_time); + this.rlContainer = itemView.findViewById(R.id.rl_item_container); + } + } + + class MyGridViewHolder extends RecyclerView.ViewHolder{ + + TextView mTvTitle; + TextView mTvContent; + TextView mTvTime; + ViewGroup rlContainer; + + public MyGridViewHolder(@NonNull View itemView) { + super(itemView); + this.mTvTitle = itemView.findViewById(R.id.tv_title); + this.mTvContent = itemView.findViewById(R.id.tv_content); + this.mTvTime = itemView.findViewById(R.id.tv_time); + this.rlContainer = itemView.findViewById(R.id.rl_item_container); + } + } +} diff --git a/src/NoteApp281/app/src/main/java/com/example/noteapp281/bean/Note.java b/src/NoteApp281/app/src/main/java/com/example/noteapp281/bean/Note.java new file mode 100644 index 0000000..1edafee --- /dev/null +++ b/src/NoteApp281/app/src/main/java/com/example/noteapp281/bean/Note.java @@ -0,0 +1,54 @@ +package com.example.noteapp281.bean; + +import java.io.Serializable; + +public class Note implements Serializable { + + private String title; + private String content; + private String createdTime; + private String id; + + + public String getTitle() { + return title; + } + + public void setTitle(String title) { + this.title = title; + } + + public String getContent() { + return content; + } + + public void setContent(String content) { + this.content = content; + } + + public String getCreatedTime() { + return createdTime; + } + + public void setCreatedTime(String createdTime) { + this.createdTime = createdTime; + } + + public String getId() { + return id; + } + + public void setId(String id) { + this.id = id; + } + + @Override + public String toString() { + return "Note{" + + "title='" + title + '\'' + + ", content='" + content + '\'' + + ", createdTime='" + createdTime + '\'' + + ", id='" + id + '\'' + + '}'; + } +} diff --git a/src/NoteApp281/app/src/main/java/com/example/noteapp281/util/SpfUtil.java b/src/NoteApp281/app/src/main/java/com/example/noteapp281/util/SpfUtil.java new file mode 100644 index 0000000..5094e45 --- /dev/null +++ b/src/NoteApp281/app/src/main/java/com/example/noteapp281/util/SpfUtil.java @@ -0,0 +1,38 @@ +package com.example.noteapp281.util; + +import android.content.Context; +import android.content.SharedPreferences; + +public class SpfUtil { + + private static String SPF_NAME = "noteSpf"; + + public static void saveString(Context context, String key, String value) { + SharedPreferences spf = context.getSharedPreferences(SPF_NAME, Context.MODE_PRIVATE); + SharedPreferences.Editor edit = spf.edit(); + edit.putString(key, value); + edit.apply(); + } + + public static String getString(Context context, String key) { + SharedPreferences spf = context.getSharedPreferences(SPF_NAME, Context.MODE_PRIVATE); + return spf.getString(key, ""); + } + + public static void saveInt(Context context, String key, int value) { + SharedPreferences spf = context.getSharedPreferences(SPF_NAME, Context.MODE_PRIVATE); + SharedPreferences.Editor edit = spf.edit(); + edit.putInt(key, value); + edit.apply(); + } + + public static int getInt(Context context, String key) { + SharedPreferences spf = context.getSharedPreferences(SPF_NAME, Context.MODE_PRIVATE); + return spf.getInt(key, -1); + } + + public static int getIntWithDefault(Context context, String key, int defValue) { + SharedPreferences spf = context.getSharedPreferences(SPF_NAME, Context.MODE_PRIVATE); + return spf.getInt(key, defValue); + } +} diff --git a/src/NoteApp281/app/src/main/java/com/example/noteapp281/util/ToastUtil.java b/src/NoteApp281/app/src/main/java/com/example/noteapp281/util/ToastUtil.java new file mode 100644 index 0000000..4874857 --- /dev/null +++ b/src/NoteApp281/app/src/main/java/com/example/noteapp281/util/ToastUtil.java @@ -0,0 +1,15 @@ +package com.example.noteapp281.util; + +import android.content.Context; +import android.widget.Toast; + +public class ToastUtil { + + public static void toastShort(Context context, String msg) { + Toast.makeText(context, msg, Toast.LENGTH_SHORT).show(); + } + + public static void toastLong(Context context, String msg) { + Toast.makeText(context, msg, Toast.LENGTH_LONG).show(); + } +}