Android Open Source - minimalnoter Main Activity

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License

The source code is released under:

MIT License

Java Source Code

package com.softnuke.noter;
//ww  w  . j  av a 2 s.c om
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.List;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity implements ConfirmDeleteDialog.DeleteCommunicator{  
  
  final static String FILENAME="dataNotes.txt";
  private CustomAdaptor adapter = null;
  float historicX = Float.NaN, historicY = Float.NaN;
  static final int DELTA = 50;
  enum Direction {LEFT, RIGHT;}  
  
  ListView listview;
  
  public ArrayList<HashMap<String,String>> DataMaper = new ArrayList<HashMap<String, String>>();
  //public ArrayList<ArrayList<String>> DataMaper = new ArrayList<ArrayList<String>>();
  
  static final int EDIT_REQUEST = 0;
  
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main); 
      
      listview = (ListView) findViewById(R.id.lvNotes);
      //registering to add context menu for all items
        registerForContextMenu(listview);        
        
        
      //set button and list view listeners like swiping!
        setListeners();
        //loadTextFromFile();
        
        //loadNotesFromDb();
        
        //Insert DataMaper values form db
        arrayFill();
        //setup listeners for Listview and adpater
        fillupList();
        
    }

    private void populateListView() {
      arrayFill();
      
      //updating adapter view
      adapter.notifyDataSetChanged();    
  }

  private void arrayFill() { 
      //access DB
      DbHandler db = new DbHandler(this);
      
      
        //clearing any predefined old data
      DataMaper.clear();
      
      // Reading all contacts
        Log.d("Reading: ", "Reading all contacts.."); 
        List<Notes> notes = db.getAllNotes();   
        
        int i = 0;
        
        
        
        for (Notes note : notes) { 
            String log = "Id: "+note.getID()+" ,Name: " + note.getName() + " ,Data: " + note.getData();            
            // Writing Contacts to log
            Log.d("Name: ", log);
            
            HashMap<String, String> value = new HashMap<String, String>();
            //ArrayList<String> value= new ArrayList<String>();
            
            //inserting into hashmap
            value.put("id", ""+note.getID());
            value.put("name", note.getName());
            value.put("data", note.getData());
            value.put("time", note.getTime());
            
            /*value.add(""+note.getID());//note id
            value.add(""+note.getName());//note name
            value.add(""+note.getData());//note raw date
*/            
            //convert time to look pretty            
            String _Date = note.getTime(); //"2010-09-29 08:45:22"
            
            SimpleDateFormat fmtInput = new SimpleDateFormat("yyyy-MM-dd");
            SimpleDateFormat fmtOutput = new SimpleDateFormat("dd MMM, EEEE");
            
           Date date = null;
      try {
        date = fmtInput.parse(_Date);
      } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }      
            String formated = fmtOutput.format(date);
            
            value.put("timeformated", formated);
            value.put("color", note.getColor());
            
           /* value.add(""+formated);//formated date
            value.add(""+note.getColor());//color
*/
            //just an example
            //value.put("note3", "Wash your clothes");
            
            //Arraylist values are
            // index 0 - id
            // index 1 - name
            // index 2 - note data
            // index 3 - date - raw
            // index 4 - date - formatted
            // index 5 - color
            
            DataMaper.add(value);          
            
            
        } 
        
        //just an example
        //DataMaper.put("1", value);
        
        for(i = 0; i<DataMaper.size();i++){
          Log.i("DataMaper values",DataMaper.get(i).toString());
        }
        
        Log.i("data filled","success");
        
    
  }

  private void fillupList() {      
      
       /* String[] values = new String[] { "Android", "iPhone", "WindowsMobile",
            "Blackberry", "WebOS", "Ubuntu", "Windows7", "Max OS X",
            "Linux", "OS/2", "Ubuntu", "Windows7", "Max OS X", "Linux",
            "OS/2", "Ubuntu", "Windows7", "Max OS X", "Linux", "OS/2",
            "Android", "iPhone", "WindowsMobile" };

        final ArrayList<String> list = new ArrayList<String>();
        for (int i = 0; i < values.length; ++i) {
          list.add(values[i]);
        }*/
        
        //calling customadaptor for user defined view using list_item.xml
        //final CustomAdaptor adapter = new CustomAdaptor(this, android.R.layout.simple_list_item_1, values);
      
        Log.d("filling", "list start");
        adapter = new CustomAdaptor(this, android.R.layout.simple_list_item_1, DataMaper);
        
        //setting data adapter
        listview.setAdapter(adapter);        
        
        listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {

          @Override
          public void onItemClick(AdapterView<?> parent, final View view, int position, long id) {
            
            //final String item = (String) parent.getItemAtPosition(position);
            
            //gives an pulsing effect when clicked
            Animation pulse = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.scale_pulse);
            view.startAnimation(pulse);
            
            
              //counting numbre of items
              int count = parent.getChildCount();              
              
              TextView t1 = (TextView) view.findViewById(R.id.tvListId);
          
              String data[] = new String[6];              
              data[0] = t1.getText().toString();// fetching id              
              
              for(int i = 0;i<DataMaper.size();i++){

                //filling hash map 
              HashMap<String,String> temp = new HashMap<String,String>();
              temp.putAll(DataMaper.get(i));
              
              if(temp.get("id") == data[0]){  //matching id
                
                data[1] = temp.get("name").toString();//name
                 data[2] = temp.get("data").toString();//data
                 data[3] = temp.get("time").toString();//time formated
                 data[4] = temp.get("timeformated").toString(); //color
                 data[5] = temp.get("color").toString(); //color 
              }
            }
              
              /*TextView t2 = (TextView) view.findViewById(R.id.tvListNoteName);
              TextView t3 = (TextView) view.findViewById(R.id.tvListNoteLine);
              TextView t4 = (TextView) view.findViewById(R.id.tvListTime);*/               
            
          Log.i("item","ittemmm"+position+",id:"+count+data[1]);
            
            Intent i = new Intent(MainActivity.this, NotesEditor.class);
          i.putExtra("Note", data); //note details
          
        MainActivity.this.startActivityForResult(i, EDIT_REQUEST);
        
        /* view.animate().setDuration(2000).alpha(0).withEndAction(new Runnable() {
                @Override
                public void run() {
                  list.remove(item);
                  adapter.notifyDataSetChanged();
                  view.setAlpha(1);
                }
              });*/
            
            //Separate thread for ui interaction
              /*runOnUiThread(new Runnable()
              {
                  public void run()
                  {
                    Toast.makeText(MainActivity.this,"Clicked", Toast.LENGTH_SHORT).show();
                  }
              });*/
          }

        });
        
        
        
        final Animation animation = AnimationUtils.loadAnimation(this, R.anim.item_slide_out);
        
        listview.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {

      @Override
      public boolean onItemLongClick(AdapterView<?> parent, View view,
          int position, long id) {
        // TODO Auto-generated method stub
        //Toast.makeText(getApplicationContext(), "Holded", Toast.LENGTH_SHORT).show();
        //view.startAnimation(animation);
        return false;
      }
          
    });        
        
        
        animation.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {
            }

            @Override
            public void onAnimationRepeat(Animation animation) {
            }

            @Override
            public void onAnimationEnd(Animation animation) {
                
            }
        });
        
        
    
  }
  
  protected void onActivityResult(int requestCode, int resultCode,
            Intent data) {
        if (requestCode == EDIT_REQUEST) {
            if (resultCode == RESULT_OK) {
                // A note was picked.  Here we will just display it
                // to the user.
                //startActivity(new Intent(Intent.ACTION_VIEW, data));
              Log.i("activity","received back");
              
              //refilling list
              populateListView();
              
            }
        }
    }
  
  @Override
  public void onCreateContextMenu(ContextMenu menu, View v,ContextMenuInfo menuInfo) {    
    super.onCreateContextMenu(menu, v, menuInfo);
    
    //filling context Menu
    MenuInflater inflater = getMenuInflater();
      inflater.inflate(R.menu.context_main, menu);
  }

  @Override
  public boolean onContextItemSelected(MenuItem item) {
  
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
    View v = info.targetView;
    
        
    TextView t1 = (TextView) v.findViewById(R.id.tvListId);
    
      String data[] = new String[6];              
      data[0] = t1.getText().toString();// fetching id              
      
      for(int i = 0;i<DataMaper.size();i++){

        //filling hash map 
      HashMap<String,String> temp = new HashMap<String,String>();
      temp.putAll(DataMaper.get(i));
      
      if(temp.get("id") == data[0]){  //matching id
        
        data[1] = temp.get("name").toString();//name
          data[2] = temp.get("data").toString();//data
          data[3] = temp.get("time").toString();//raw date
          data[4] = temp.get("timeformated").toString(); //time formated
          data[5] = temp.get("color").toString(); //color 
      }
    }
      
      int noteid = Integer.parseInt(data[0]);   
          
      switch (item.getItemId()) {
          case R.id.itemDelete:
              Log.i("Context","Delete");
              
              DbHandler db = new DbHandler(this);
              
              //creating note
            Notes note = new Notes(noteid);
              
          int res = db.deleteNote(note);
          
              if(res == 1){
                Toast.makeText(getApplicationContext(), "Deleted.", Toast.LENGTH_SHORT).show();
                
                //resetting list
                populateListView();
              }
              else
                Toast.makeText(getApplicationContext(), "Unable to delete.", Toast.LENGTH_SHORT).show();
              
              db.close();
              
              return true;
          case R.id.itemProperties:
            
            Log.i("Context","Properties");
            Toast.makeText(getApplicationContext(), "Created on: "+data[3], Toast.LENGTH_LONG).show();            
                        
              return true;
          default:
              return super.onContextItemSelected(item);
      }
      
      
    
  }

  private void setListeners() {  
    
    SwipeDismissListViewTouchListener touchListener = new SwipeDismissListViewTouchListener(listview,
                        new SwipeDismissListViewTouchListener.OnDismissCallback() {
                            @Override
                            public void onDismiss(ListView listView, int[] reverseSortedPositions) {
                                for (int position : reverseSortedPositions) {
                                    
                                  View rowV = adapter.getView(position, null, null);
    
                  TextView id = (TextView) rowV.findViewById(R.id.tvListId);
                  int noteid = Integer.parseInt(id.getText().toString());
                  
                  Log.d("Remove item of id:",""+noteid);
                  
                  //calling confirm dialog box
                    ConfirmDeleteDialog dialog = ConfirmDeleteDialog.newInstance(noteid);
                    dialog.show(getSupportFragmentManager(), null);
                    
                                }
                                
                            }
                        });
        listview.setOnTouchListener(touchListener);
        // Setting this scroll listener is required to ensure that during ListView scrolling,
        // we don't look for swipes.
        listview.setOnScrollListener(touchListener.makeScrollListener());
        
        
    /*save.setOnClickListener(new View.OnClickListener() {
      
      @Override
      public void onClick(View v) {
        
        //if(v.getId()==R.id.bSave){
          String usertext = mtextInput.getText().toString();
          
          mtextInput.setText("");
          
          if(!usertext.contentEquals(""))
          {  
            //String currentText = mtextOutput.getText().toString();
            //mtextOutput.setText(usertext+"\n"+currentText);
          
            try {
              FileOutputStream fo = openFileOutput(FILENAME,Context.MODE_APPEND);
              fo.write(usertext.getBytes());
              fo.write("\n".getBytes());
            } catch (FileNotFoundException e) {
              
              e.printStackTrace();
            } catch (IOException e) {
              
              e.printStackTrace();
            }
          }
          
        //}
      }
    });    
    
    Log.i("Savebutton", "Set");*/    
        
    
  }//set Listeners end
  
  private void AddNewNote(String noteName) {
    
    Log.i("name", noteName);
    
    Intent edi = new Intent(MainActivity.this, NotesEditor.class);
    String data[] = new String[3];
    
    //fetch time to act as a id        
    Calendar c = Calendar.getInstance();
        Log.i("Current time => ",""+c.getTime());
        
        //generate time
        //SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        //String formattedDate = df.format(c.getTime());
        //generate id
        SimpleDateFormat dfId = new SimpleDateFormat("ddHHmmss");
        String formatedDateforId = dfId.format(c.getTime());
    
                    
    data[0] = formatedDateforId; //id 
    data[1] = noteName;
    data[2] = "";    
    
    Log.i("name",""+data[1]);
    
    edi.putExtra("Note", data); //Optional parameters
    
    //reset input field
    //mtextInput.setText("");
    
    MainActivity.this.startActivityForResult(edi, EDIT_REQUEST);
    
  }
  
  public static class CreateNoteDialog extends DialogFragment {
    EditText name;
    Button create,skip;
    private MainActivity MainAct;
    
    @Override
    public void onAttach(Activity activity) {
      // TODO Auto-generated method stub
        
        //attaching activity to call delNote non static method
        if (activity instanceof MainActivity)
          {
              MainAct = (MainActivity) activity;
          }
          super.onAttach(activity);
    }
    
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
      // TODO Auto-generated method stub
      
      //setting note title
      getDialog().setTitle("Note Title?");
      
      View v = inflater.inflate(R.layout.dialog_new_note, null);
      
      name = (EditText) v.findViewById(R.id.dialogNoteName);
      create = (Button) v.findViewById(R.id.dialogCreateButton);
      skip = (Button) v.findViewById(R.id.dialogSkipButton);
      
      create.setOnClickListener(new View.OnClickListener() {
        
        @Override
        public void onClick(View v) {
          String text = name.getText().toString();
          
          if(text.trim().length() < 1){
            Toast.makeText(getActivity(), "Insert a name please!", Toast.LENGTH_SHORT).show();
          }            
          else{
            Toast.makeText(getActivity(), "Creating new note: "+text, Toast.LENGTH_SHORT).show();
            
            //calling add new note method
            MainAct.AddNewNote(text);
            
            //close dialog
            dismiss();
          }
          
          
        }
      });
      
      skip.setOnClickListener(new View.OnClickListener() {
        
        @Override
        public void onClick(View v) {          
          Toast.makeText(getActivity(), "Creating new note", Toast.LENGTH_SHORT).show();
          
          //calling add new note method with default text:New Note
          MainAct.AddNewNote("New Note");
          
          //close dialog
          dismiss();          
        }
      });
      return v;      
      
    }
      
  }
  
  private void loadNotesFromDb() {
      DbHandler db = new DbHandler(this);
        
        /**
         * CRUD Operations
         * */
        // Inserting Contacts
      
        Log.d("Insert: ", "Inserting .."); 
        //db.addNote(new Notes("Superman", "9100666600"));        
        //db.addNote(new Notes("Batman", "9199333399"));
         
        // Reading all contacts
        Log.d("Reading: ", "Reading all contacts.."); 
        List<Notes> notes = db.getAllNotes();       
         
        for (Notes cn : notes) {
            String log = "Id: "+cn.getID()+" ,Name: " + cn.getName() + " ,Data: " + cn.getData();
            
            // Writing Contacts to log
            Log.d("Name: ", log);
        }   
            
        
    
  }
    
    //this will load text from saved file
    private void loadTextFromFile() {
    File f = new File(getFilesDir(),FILENAME);
    try {
      BufferedReader br = new BufferedReader(new FileReader(f));
      
      String line;
      while((line=br.readLine())!=null){
        //mtextOutput.setText(line+"\n"+mtextOutput.getText());
        
      }
      
      br.close();
      
    } catch (FileNotFoundException e) {
      
      e.printStackTrace();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    
  }

  @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // TODO Auto-generated method stub
    
    switch (item.getItemId()) {
        case R.id.menu_itemAbout:
          //notifying user who is the master mind
          Toast.makeText(getApplicationContext(), "App Developer: Kush Kumar Sharma", Toast.LENGTH_LONG).show();
          
          return true;
        case R.id.menu_new_note:
          
          //calling dialog for asking new note name that will handle new notes
        CreateNoteDialog dialog = new CreateNoteDialog();
        dialog.show(getSupportFragmentManager(), "NewNotedDialog");
        
          return true;
        default:
              return super.onContextItemSelected(item);
    }
    
  }
  
  //this is called when confirm delete dialog will select accept and send it
  @Override
  public void deleteNoteCallBack(boolean confirm,int noteid) {
    // TODO Auto-generated method stub
    
    if(!confirm)
      return;        
      
      // deleting from database too      
    DbHandler db = new DbHandler(this);
        
      //creating note
      Notes note = new Notes(noteid);
      
      int res = db.deleteNote(note);
      
        if(res == 1){
          //removing note from DataMaper!
          for(int i = 0;i<DataMaper.size();i++){

            //filling hash map 
          HashMap<String,String> temp = new HashMap<String,String>();
          temp.putAll(DataMaper.get(i));
          
          String Stringnoteid = ""+noteid;
          
          if(temp.get("id").equals(Stringnoteid)){  //matching id
            DataMaper.remove(i);
            break;
          }
        }
          //updating adapter view
          adapter.notifyDataSetChanged();
          
          Toast.makeText(this, "Deleted.", Toast.LENGTH_SHORT).show();                
        }
        else{
          Toast.makeText(this, "Unable to delete.", Toast.LENGTH_SHORT).show();
        }          
        
        db.close();
        
  }  
    
}

Java Source Code List

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