From 43de7835852a8d3ce6789ae1d82f7eb1752e850a Mon Sep 17 00:00:00 2001 From: eazzy <1044745821@qq.com> Date: Thu, 21 Dec 2023 02:16:26 +0800 Subject: [PATCH] NoteListActivity --- .../micode/notes/ui/NotesListActivity.java | 250 ++++++++++++------ 1 file changed, 169 insertions(+), 81 deletions(-) diff --git a/src/main/java/net/micode/notes/ui/NotesListActivity.java b/src/main/java/net/micode/notes/ui/NotesListActivity.java index b7cd7d7..6b7e96b 100644 --- a/src/main/java/net/micode/notes/ui/NotesListActivity.java +++ b/src/main/java/net/micode/notes/ui/NotesListActivity.java @@ -1,5 +1,6 @@ package net.micode.notes.ui; +import android.annotation.SuppressLint; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; @@ -61,12 +62,16 @@ import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.HashSet; -//主界面，一进入就是这个界面 /** - * @author k - * + * @Package: net.micode.notes.ui + * @ClassName: NotesListActivity + * @Description: + * @Author: WUSHUXIAN + * @CreateDate: 2023/12/20 23:02 + * @Version: 1.0 */ -public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { //没有用特定的标签加注释。。。感觉没有什么用 +public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { + private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0; private static final int FOLDER_LIST_QUERY_TOKEN = 1; @@ -77,7 +82,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt private static final int MENU_FOLDER_CHANGE_NAME = 2; - private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; //单行超过80个字符 + private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; private enum ListEditState { NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER @@ -122,58 +127,62 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt private final static int REQUEST_CODE_OPEN_NODE = 102; private final static int REQUEST_CODE_NEW_NODE = 103; - @Override /** - * @method onCreate - * @description - * @date: 9:58 AM - * @author: YangYizhe - * @param [savedInstanceState] - * @return void + * @method onCreate + * @description: + * @date: 2023/12/21 1:52 + * @author: WUSHUXIAN + * @param void + * @return void */ - protected void onCreate(final Bundle savedInstanceState) { //需要是final类型 根据程序上下文环境，Java关键字final有“这是无法改变的”或者“终态的”含义，它可以修饰非抽象类、非抽象类成员方法和变量。你可能出于两种理解而需要阻止改变：设计或效率。 - // final类不能被继承，没有子类，final类中的方法默认是final的。 - //final方法不能被子类的方法覆盖，但可以被继承。 - //final成员变量表示常量，只能被赋值一次，赋值后值不再改变。 - //final不能用于修饰构造方法。 + protected void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 调用父类的onCreate函数 setContentView(R.layout.note_list); initResources(); - - /** - * Insert an introduction when user firstly use this application - */ setAppInfoFromRawRes(); } @Override - // 返回一些子模块完成的数据交给主Activity处理 + /** + * @method onActivityResult + * @description: + * 参数： + * requestCode： + * resultCode： + * data； + * @date: 2023/12/20 23:26 + * @author: WUSHUXIAN + * @param void + * @return void + */ protected void onActivityResult(int requestCode, int resultCode, Intent data) { - // 结果值 和 要求值 符合要求 if (resultCode == RESULT_OK && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) { mNotesListAdapter.changeCursor(null); } else { - super.onActivityResult(requestCode, resultCode, data); - // 调用 Activity 的onActivityResult（） + super.onActivityResult(requestCode, resultCode, data);// 调用 Activity 的onActivityResult() } } - + /** + * @method setAppInfoFromRawRes + * @description: + * @date: 2023/12/20 23:24 + * @author: WUSHUXIAN + * @param + * @return + */ private void setAppInfoFromRawRes() { - // Android平台给我们提供了一个SharedPreferences类，它是一个轻量级的存储类，特别适合用于保存软件配置参数。 - SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this); + SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);// Android平台给我们提供了一个SharedPreferences类，它是一个轻量级的存储类，特别适合用于保存软件配置参数。 if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) { StringBuilder sb = new StringBuilder(); InputStream in = null; try { - // 把资源文件放到应用程序的/raw/raw下，那么就可以在应用中使用getResources获取资源后, - // 以openRawResource方法（不带后缀的资源文件名）打开这个文件。 in = getResources().openRawResource(R.raw.introduction); if (in != null) { InputStreamReader isr = new InputStreamReader(in); BufferedReader br = new BufferedReader(isr); - char [] buf = new char[1024]; // 自行定义的数值，使用者不知道有什么意义 + char [] buf = new char[1024]; int len = 0; while ((len = br.read(buf)) > 0) { sb.append(buf, 0, len); @@ -216,8 +225,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt super.onStart(); startAsyncNotesListQuery(); } - - // 初始化资源 + /** + * @method initResources + * @description 初始化资源 + * @date: 2023/12/20 23:09 + * @author: WUSHUXIAN + * @param + * @return + */ private void initResources() { mContentResolver = this.getContentResolver(); // 获取应用程序的数据，得到类似数据表的东西 mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver()); @@ -242,7 +257,15 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt mModeCallBack = new ModeCallback(); } - // 继承自ListView.MultiChoiceModeListener 和 OnMenuItemClickListener + // + /** + * @Package: net.micode.notes.ui + * @ClassName: ModeCallback + * @Description: 继承自ListView.MultiChoiceModeListener 和 OnMenuItemClickListener + * @Author: WUSHUXIAN + * @CreateDate: 2023/12/20 23:37 + * @Version: 1.0 + */ private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener { private DropdownMenu mDropDownMenu; private ActionMode mActionMode; @@ -280,8 +303,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt }); return true; } - - // 更新菜单 + /** + * @method updateMenu + * @description 更新菜单 + * @date: 2023/12/16 23:36 + * @author: WUSHUXIAN + * @param + * @return + */ private void updateMenu() { int selectedCount = mNotesListAdapter.getSelectedCount(); // Update dropdown menu @@ -324,7 +353,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt mNotesListAdapter.setCheckedItem(position, checked); updateMenu(); } - + /** + * @method onMenuItemClick + * @description: + * @date: 2023/12/20 23:39 + * @author: WUSHUXIAN + * @param + * @return + */ public boolean onMenuItemClick(MenuItem item) { if (mNotesListAdapter.getSelectedCount() == 0) { Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none), @@ -356,9 +392,8 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt return true; } } - + //接口的实现 private class NewNoteOnTouchListener implements OnTouchListener { - public boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: { @@ -418,22 +453,44 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } }; - + /** + * @method startAsyncNotesListQuery + * @description: 启动异步Notes列表查询 + * @date: 2023/12/20 23:45 + * @author: WUSHUXIAN + * @param + * @return + */ private void startAsyncNotesListQuery() { - String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION - : NORMAL_SELECTION; + String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION : NORMAL_SELECTION; mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null, - Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] { - String.valueOf(mCurrentFolderId) - }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC"); + Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] {String.valueOf(mCurrentFolderId)}, + NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC"); } - + /** + * @Package: net.micode.notes.ui + * @ClassName: BackgroundQueryHandler + * @Description: 对AsyncQueryHandler的拓展，背景查询处理 + * @Author: WUSHUXIAN + * @CreateDate: 2023/12/21 0:01 + * @Version: 1.0 + */ private final class BackgroundQueryHandler extends AsyncQueryHandler { public BackgroundQueryHandler(ContentResolver contentResolver) { super(contentResolver); } @Override + /** + * @method onQueryComplete + * @description: 在异步查询完成时调用。 + * @date: 2023/12/20 23:56 + * @author: WUSHUXIAN + * @param token 标识查询的令牌 + * @param cookie 传入的cookie对象 + * @param cursor 保存查询结果的光标 + * @return void + */ protected void onQueryComplete(int token, Object cookie, Cursor cursor) { switch (token) { case FOLDER_NOTE_LIST_QUERY_TOKEN: @@ -472,28 +529,44 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt }); builder.show(); } - + /** + * @method createNewNote + * @description 创建便签 + * @date: 12/21/2023 1:58 AM + * @author: YangYizhe + * @param + * @return + */ private void createNewNote() { Intent intent = new Intent(this, NoteEditActivity.class); intent.setAction(Intent.ACTION_INSERT_OR_EDIT); intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mCurrentFolderId); this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE); } - + /** + * @method batchDelete + * @description: + * 删除便签操作 + * @date: 2023/12/21 0:14 + * @author: WUSHUXIAN + * @param + * @return void + */ + @SuppressLint("StaticFieldLeak") private void batchDelete() { new AsyncTask>() { protected HashSet doInBackground(Void... unused) { HashSet widgets = mNotesListAdapter.getSelectedWidget(); + //如果没有同步，直接删除 if (!isSyncMode()) { - // if not synced, delete notes directly if (DataUtils.batchDeleteNotes(mContentResolver, mNotesListAdapter .getSelectedItemIds())) { } else { Log.e(TAG, "Delete notes error, should not happens"); } - } else { - // in sync mode, we'll move the deleted note into the trash - // folder + } + //已同步，将删除的便签移到垃圾桶 + else { if (!DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter .getSelectedItemIds(), Notes.ID_TRASH_FOLER)) { Log.e(TAG, "Move notes to trash folder error, should not happens"); @@ -516,7 +589,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } }.execute(); } - + /** + * @method deleteFolder + * @description: 删除文件夹 + * @date: 2023/12/21 0:32 + * @author: WUSHUXIAN + * @param folderId 文件标识 + * @return void + */ private void deleteFolder(long folderId) { if (folderId == Notes.ID_ROOT_FOLDER) { Log.e(TAG, "Wrong folder id, should not happen " + folderId); @@ -585,7 +665,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); } - + /** + * @method showCreateOrModifyFolderDialog + * @description: 创建或者修改文件夹时显示对话框 + * @date: 2023/12/21 0:39 + * @author: WUSHUXIAN + * @param create + * @return void + */ private void showCreateOrModifyFolderDialog(final boolean create) { final AlertDialog.Builder builder = new AlertDialog.Builder(this); View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null); @@ -643,13 +730,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt dialog.dismiss(); } }); - + //如果便签名是空的，则禁用确认按钮 if (TextUtils.isEmpty(etName.getText())) { positive.setEnabled(false); } - /** - * When the name edit text is null, disable the positive button - */ etName.addTextChangedListener(new TextWatcher() { public void beforeTextChanged(CharSequence s, int start, int count, int after) { // TODO Auto-generated method stub @@ -676,26 +760,27 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt * 按返回键时根据情况更改类中的数据 */ @Override - public void onBackPressed() { switch (mState) { - case SUB_FOLDER: - mCurrentFolderId = Notes.ID_ROOT_FOLDER; - mState = ListEditState.NOTE_LIST; - startAsyncNotesListQuery(); - mTitleBar.setVisibility(View.GONE); - break; - case CALL_RECORD_FOLDER: - mCurrentFolderId = Notes.ID_ROOT_FOLDER; - mState = ListEditState.NOTE_LIST; - mAddNewNote.setVisibility(View.VISIBLE); - mTitleBar.setVisibility(View.GONE); - startAsyncNotesListQuery(); - break; - case NOTE_LIST: - super.onBackPressed(); - break; - default: - break; - } + public void onBackPressed() { + switch (mState) { + case SUB_FOLDER: + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mState = ListEditState.NOTE_LIST; + startAsyncNotesListQuery(); + mTitleBar.setVisibility(View.GONE); + break; + case CALL_RECORD_FOLDER: + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mState = ListEditState.NOTE_LIST; + mAddNewNote.setVisibility(View.VISIBLE); + mTitleBar.setVisibility(View.GONE); + startAsyncNotesListQuery(); + break; + case NOTE_LIST: + super.onBackPressed(); + break; + default: + break; + } } /** @@ -721,9 +806,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt sendBroadcast(intent); setResult(RESULT_OK, intent); } - /** - * 声明监听器，建立菜单，包括名称，视图，删除操作，更改名称操作； + * @method OnCreateContextMenuListener + * @description: 生成便签初始界面 + * @date: 2023/12/21 1:16 + * @author: WUSHUXIAN + * @param + * @return */ private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() { public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { @@ -900,7 +989,6 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } /** - * @author k * 函数功能：实现对便签列表项的点击事件（短按） */ private class OnListItemClickListener implements OnItemClickListener {