首先，如何将最后一个项目放在列表视图顶部的列表视图中？也许每个音符都优先。示例队列号。当我创建笔记时，我想为笔记的背景颜色选择每个笔记的颜色。每个笔记都有自己的背景色值。
optimization: {
runtimeChunk: 'multiple',
splitChunks: {
chunks: 'all',
maxInitialRequests: Infinity,
minSize: 0,
cacheGroups: {
vendor: {
test: /[\\/]node_modules[\\/]/,
name(module) {
// get the name. E.g. node_modules/packageName/not/this/part.js
// or node_modules/packageName
// const packageName = module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/)[1];
const packageParts = module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/);
let packageName = 'core';
if (packageParts){
packageName = packageParts[1];
}
// npm package names are URL-safe, but some servers don't like @ symbols
return `npm.${packageName.replace('@', '')}`;
},
},
},
},
},
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mlistViewNotes = findViewById(R.id.main_listview_notes);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main,menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case R.id.action_main_new_note:
//start noteaactivity
Intent newNoteActivity =new Intent(this,NoteActivity.class);
startActivity(newNoteActivity);
break;
}
return true;
}
@Override
protected void onResume() {
super.onResume();
mlistViewNotes.setAdapter(null);
ArrayList<Note> notes = Utilities.getAllSavedNotes(this);
if(notes == null || notes.size() == 0){
Toast.makeText(this, "You have no saved notes",Toast.LENGTH_SHORT).show();
return;
}else{
NoteAdapter na= new NoteAdapter(this, R.layout.item_note,notes);
mlistViewNotes.setAdapter(na);
mlistViewNotes.setOnItemClickListener(new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String fileName =((Note)mlistViewNotes.getItemAtPosition(position)).getmDateTime() + Utilities.FILE_EXTENSION;
Intent viewNoteIntent= new Intent(getApplicationContext(), NoteActivity.class);
viewNoteIntent.putExtra("NOTE_FILE",fileName);
startActivity(viewNoteIntent);
}
});
}
}
public Note(long mDateTime, String mTitle, String mContent) {
this.mDateTime = mDateTime;
this.mTitle = mTitle;
this.mContent = mContent;
}
public void setmDateTime(long mDateTime) {
this.mDateTime = mDateTime;
}
public void setmTitle(String mTitle) {
this.mTitle = mTitle;
}
public void setmContent(String mContent) {
this.mContent = mContent;
}
public long getmDateTime() {
return mDateTime;
}
public String getmTitle() {
return mTitle;
}
public String getmContent() {
return mContent;
}
public String getDateTimeFormatted(Context context){
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss",context.getResources().getConfiguration().locale);
sdf.setTimeZone(TimeZone.getDefault());
return sdf.format(new Date(mDateTime));
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_note);
mEtTitle = findViewById(R.id.note_et_title);
mEtContent = findViewById(R.id.note_et_content);
mNoteFileName = getIntent().getStringExtra("NOTE_FILE");
if(mNoteFileName != null && !mNoteFileName.isEmpty()){
mLoadedNote = Utilities.getNoteByName(this,mNoteFileName);
if(mLoadedNote != null){
mEtTitle.setText(mLoadedNote.getmTitle());
mEtContent.setText(mLoadedNote.getmContent());
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_note_new, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case R.id.action_note_save:
saveNote();
case R.id.action_note_delete:
deleteNote();
break;
}
return true;
}
private void saveNote(){
Note note;
if(mEtTitle.getText().toString().trim().isEmpty() || mEtContent.getText().toString().trim().isEmpty()){
Toast.makeText(this," Please enter a title and a content",Toast.LENGTH_SHORT).show();
return;
}
if(mLoadedNote == null){
note =new Note(System.currentTimeMillis(), mEtTitle.getText().toString(),mEtContent.getText().toString());
}else{
note =new Note(mLoadedNote.getmDateTime(), mEtTitle.getText().toString(),mEtContent.getText().toString());
}
if(Utilities.saveNote(this,note)){
Toast.makeText(this,"Your note is saved", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(this,"Can not save the note.", Toast.LENGTH_SHORT).show();
}
finish();
}
private void deleteNote() {
if(mLoadedNote == null){
finish();
}else{
AlertDialog.Builder dialog = new AlertDialog.Builder(this).setTitle("Delete").setMessage("You are about to delete " + mEtTitle.getText().toString() + ", are you sure?").setPositiveButton("yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Utilities.deleteNote(getApplicationContext(),mLoadedNote.getmDateTime() + Utilities.FILE_EXTENSION);
Toast.makeText(getApplicationContext(),mEtTitle.getText().toString() + " is deleted",Toast.LENGTH_SHORT).show();
finish();
}
})
.setNegativeButton("no",null).setCancelable(false);
dialog.show();
}
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
//return super.getView(position, convertView, parent);
if(convertView == null){
convertView = LayoutInflater.from(getContext()).inflate(R.layout.item_note,null);
}
Note note = getItem(position);
if(note !=null){
TextView title = convertView.findViewById(R.id.list_note_title);
TextView date = convertView.findViewById(R.id.list_note_date);
TextView content = convertView.findViewById(R.id.list_note_content);
title.setText(note.getmTitle());
date.setText(note.getDateTimeFormatted(getContext()));
if(note.getmContent().length() > 50 ){
content.setText(note.getmContent().substring(0,50));
}else{
content.setText(note.getmContent());
}
}
return convertView;
}