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Commit 518ab44

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author
Javatechig
committed
formatted code
1 parent 910d453 commit 518ab44

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6 files changed

+123
-105
lines changed

6 files changed

+123
-105
lines changed

‎TODO Android App/src/com/javatechig/todo/AddTodoActivity.java

Lines changed: 11 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -9,10 +9,12 @@
99
import android.widget.EditText;
1010

1111
public class AddTodoActivity extends Activity implements OnClickListener {
12-
privateButtonaddTodoBtn;
13-
private SQLControllerdbController;
12+
13+
private ButtonaddTodoBtn;
1414
private EditText subjectEditText;
1515
private EditText descEditText;
16+
17+
private DBManager dbManager;
1618

1719
@Override
1820
protected void onCreate(Bundle savedInstanceState) {
@@ -21,30 +23,32 @@ protected void onCreate(Bundle savedInstanceState) {
2123
setTitle("Add Record");
2224

2325
setContentView(R.layout.activity_add_record);
26+
2427
subjectEditText = (EditText) findViewById(R.id.subject_edittext);
2528
descEditText = (EditText) findViewById(R.id.description_edittext);
2629

2730
addTodoBtn = (Button) findViewById(R.id.add_record);
2831

29-
dbController = new SQLController(this);
30-
dbController.open();
32+
dbManager = new DBManager(this);
33+
dbManager.open();
3134
addTodoBtn.setOnClickListener(this);
3235
}
3336

3437
@Override
3538
public void onClick(View v) {
3639
switch (v.getId()) {
3740
case R.id.add_record:
41+
3842
final String name = subjectEditText.getText().toString();
3943
final String desc = descEditText.getText().toString();
40-
dbController.insert(name, desc);
44+
45+
dbManager.insert(name, desc);
4146

4247
Intent main = new Intent(AddTodoActivity.this, TodoListActivity.class)
4348
.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
49+
4450
startActivity(main);
4551
break;
46-
default:
47-
break;
4852
}
4953
}
5054

Lines changed: 59 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,59 @@
1+
package com.javatechig.todo;
2+
3+
import android.content.ContentValues;
4+
import android.content.Context;
5+
import android.database.Cursor;
6+
import android.database.SQLException;
7+
import android.database.sqlite.SQLiteDatabase;
8+
9+
public class DBManager {
10+
11+
private DatabaseHelper dbHelper;
12+
13+
private Context context;
14+
15+
private SQLiteDatabase database;
16+
17+
public DBManager(Context c) {
18+
context = c;
19+
}
20+
21+
public DBManager open() throws SQLException {
22+
dbHelper = new DatabaseHelper(context);
23+
database = dbHelper.getWritableDatabase();
24+
return this;
25+
}
26+
27+
public void close() {
28+
dbHelper.close();
29+
}
30+
31+
public void insert(String name, String desc) {
32+
ContentValues contentValue = new ContentValues();
33+
contentValue.put(DatabaseHelper.TODO_SUBJECT, name);
34+
contentValue.put(DatabaseHelper.TODO_DESC, desc);
35+
database.insert(DatabaseHelper.TABLE_NAME, null, contentValue);
36+
}
37+
38+
public Cursor fetch() {
39+
String[] columns = new String[] { DatabaseHelper._ID, DatabaseHelper.TODO_SUBJECT, DatabaseHelper.TODO_DESC };
40+
Cursor cursor = database.query(DatabaseHelper.TABLE_NAME, columns, null, null, null, null, null);
41+
if (cursor != null) {
42+
cursor.moveToFirst();
43+
}
44+
return cursor;
45+
}
46+
47+
public int update(long _id, String name, String desc) {
48+
ContentValues contentValues = new ContentValues();
49+
contentValues.put(DatabaseHelper.TODO_SUBJECT, name);
50+
contentValues.put(DatabaseHelper.TODO_DESC, desc);
51+
int i = database.update(DatabaseHelper.TABLE_NAME, contentValues, DatabaseHelper._ID + " = " + _id, null);
52+
return i;
53+
}
54+
55+
public void delete(long _id) {
56+
database.delete(DatabaseHelper.TABLE_NAME, DatabaseHelper._ID + "=" + _id, null);
57+
}
58+
59+
}

‎TODO Android App/src/com/javatechig/todo/DBhelper.java renamed to ‎TODO Android App/src/com/javatechig/todo/DatabaseHelper.java

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -4,7 +4,7 @@
44
import android.database.sqlite.SQLiteDatabase;
55
import android.database.sqlite.SQLiteOpenHelper;
66

7-
public class DBhelper extends SQLiteOpenHelper {
7+
public class DatabaseHelper extends SQLiteOpenHelper {
88

99
// Table Name
1010
public static final String TABLE_NAME = "TODOS";
@@ -24,7 +24,7 @@ public class DBhelper extends SQLiteOpenHelper {
2424
private static final String CREATE_TABLE = "create table " + TABLE_NAME + "(" + _ID
2525
+ " INTEGER PRIMARY KEY AUTOINCREMENT, " + TODO_SUBJECT + " TEXT NOT NULL, " + TODO_DESC + " TEXT);";
2626

27-
public DBhelper(Context context) {
27+
public DatabaseHelper(Context context) {
2828
super(context, DB_NAME, null, DB_VERSION);
2929
}
3030

‎TODO Android App/src/com/javatechig/todo/ModifyTodoActivity.java

Lines changed: 9 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -9,11 +9,14 @@
99
import android.widget.EditText;
1010

1111
public class ModifyTodoActivity extends Activity implements OnClickListener {
12+
1213
private EditText titleText;
1314
private Button updateBtn, deleteBtn;
14-
private long _id;
15-
private SQLController dbController;
1615
private EditText descText;
16+
17+
private long _id;
18+
19+
private DBManager dbManager;
1720

1821
@Override
1922
protected void onCreate(Bundle savedInstanceState) {
@@ -23,8 +26,8 @@ protected void onCreate(Bundle savedInstanceState) {
2326

2427
setContentView(R.layout.activity_modify_record);
2528

26-
dbController = new SQLController(this);
27-
dbController.open();
29+
dbManager = new DBManager(this);
30+
dbManager.open();
2831

2932
titleText = (EditText) findViewById(R.id.subject_edittext);
3033
descText = (EditText) findViewById(R.id.description_edittext);
@@ -53,12 +56,12 @@ public void onClick(View v) {
5356
String title = titleText.getText().toString();
5457
String desc = descText.getText().toString();
5558

56-
dbController.update(_id, title, desc);
59+
dbManager.update(_id, title, desc);
5760
this.returnHome();
5861
break;
5962

6063
case R.id.btn_delete:
61-
dbController.delete(_id);
64+
dbManager.delete(_id);
6265
this.returnHome();
6366
break;
6467
}

‎TODO Android App/src/com/javatechig/todo/SQLController.java

Lines changed: 0 additions & 58 deletions
This file was deleted.

‎TODO Android App/src/com/javatechig/todo/TodoListActivity.java

Lines changed: 42 additions & 32 deletions
Original file line numberDiff line numberDiff line change
@@ -26,47 +26,53 @@
2626
import android.widget.TextView;
2727

2828
public class TodoListActivity extends ActionBarActivity {
29-
private SQLController dbcon;
29+
30+
private DBManager dbManager;
31+
3032
private ListView listView;
31-
33+
34+
private SimpleCursorAdapter adapter;
35+
36+
final String[] from = new String[] { DatabaseHelper._ID,
37+
DatabaseHelper.TODO_SUBJECT, DatabaseHelper.TODO_DESC };
38+
39+
final int[] to = new int[] { R.id.id, R.id.title, R.id.desc };
40+
3241
@Override
3342
protected void onCreate(Bundle savedInstanceState) {
3443
super.onCreate(savedInstanceState);
44+
3545
setContentView(R.layout.fragment_emp_list);
3646

37-
dbcon = new SQLController(this);
38-
dbcon.open();
47+
dbManager = new DBManager(this);
48+
dbManager.open();
49+
Cursor cursor = dbManager.fetch();
3950

4051
listView = (ListView) findViewById(R.id.list_view);
4152
listView.setEmptyView(findViewById(R.id.empty));
42-
// Attach The Data From DataBase Into ListView Using Crusor Adapter
4353

44-
Cursor cursor = dbcon.fetch();
45-
46-
String[] from = new String[] { DBhelper._ID, DBhelper.TODO_SUBJECT, DBhelper.TODO_DESC};
47-
int[] to = new int[] { R.id.id, R.id.title, R.id.desc };
48-
49-
SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.activity_view_record, cursor, from, to);
50-
54+
adapter = new SimpleCursorAdapter(this, R.layout.activity_view_record, cursor, from, to, 0);
5155
adapter.notifyDataSetChanged();
56+
5257
listView.setAdapter(adapter);
5358

5459
// OnCLickListiner For List Items
5560
listView.setOnItemClickListener(new OnItemClickListener() {
5661
@Override
5762
public void onItemClick(AdapterView<?> parent, View view, int position, long viewId) {
58-
TextView id_tv = (TextView) view.findViewById(R.id.id);
59-
TextView title_tv = (TextView) view.findViewById(R.id.title);
60-
TextView desc_tv = (TextView) view.findViewById(R.id.desc);
63+
TextView idTextView = (TextView) view.findViewById(R.id.id);
64+
TextView titleTextView = (TextView) view.findViewById(R.id.title);
65+
TextView descTextView = (TextView) view.findViewById(R.id.desc);
6166

62-
String id = id_tv.getText().toString();
63-
String title = title_tv.getText().toString();
64-
String desc = desc_tv.getText().toString();
67+
String id = idTextView.getText().toString();
68+
String title = titleTextView.getText().toString();
69+
String desc = descTextView.getText().toString();
6570

6671
Intent modify_intent = new Intent(getApplicationContext(), ModifyTodoActivity.class);
6772
modify_intent.putExtra("title", title);
6873
modify_intent.putExtra("desc", desc);
6974
modify_intent.putExtra("id", id);
75+
7076
startActivity(modify_intent);
7177
}
7278
});
@@ -80,22 +86,29 @@ public boolean onCreateOptionsMenu(Menu menu) {
8086

8187
@Override
8288
public boolean onOptionsItemSelected(MenuItem item) {
89+
8390
int id = item.getItemId();
8491
if (id == R.id.add_record) {
92+
8593
Intent add_mem = new Intent(this, AddTodoActivity.class);
8694
startActivity(add_mem);
87-
return true;
88-
}
89-
else if (id == R.id.export_records) {
90-
Cursor cursor = dbcon.fetch();
95+
96+
} else if (id == R.id.export_records) {
9197

98+
Cursor cursor = dbManager.fetch();
9299
exportToExcel(cursor);
93-
94-
return true;
95100
}
96101
return super.onOptionsItemSelected(item);
97102
}
98103

104+
105+
/**
106+
* Exports the cursor value to an excel sheet.
107+
* Recommended to call this method in a separate thread,
108+
* especially if you have more number of threads.
109+
*
110+
* @param cursor
111+
*/
99112
private void exportToExcel(Cursor cursor) {
100113

101114
final String fileName = "TodoList.xls";
@@ -123,24 +136,21 @@ private void exportToExcel(Cursor cursor) {
123136

124137
//Excel sheet name. 0 represents first sheet
125138
WritableSheet sheet = workbook.createSheet("MyShoppingList", 0);
126-
127-
//Supply row and column index
128-
Label label0 = new Label(0, 0, "Subject");
129-
Label label1 = new Label(1, 0, "Description");
130139

131140
try {
132-
sheet.addCell(label0);
133-
sheet.addCell(label1);
141+
sheet.addCell(newLabel(0, 0, "Subject")); // column and row
142+
sheet.addCell(newLabel(1, 0, "Description"));
134143

135144
if (cursor.moveToFirst()) {
136145
do {
137-
String title = cursor.getString(cursor.getColumnIndex(DBhelper.TODO_SUBJECT));
138-
String desc = cursor.getString(cursor.getColumnIndex(DBhelper.TODO_DESC));
146+
String title = cursor.getString(cursor.getColumnIndex(DatabaseHelper.TODO_SUBJECT));
147+
String desc = cursor.getString(cursor.getColumnIndex(DatabaseHelper.TODO_DESC));
139148

140149
int i = cursor.getPosition() + 1;
141150

142151
sheet.addCell(new Label(0, i, title));
143152
sheet.addCell(new Label(1, i, desc));
153+
144154
} while (cursor.moveToNext());
145155
}
146156

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