├── LICENSE ├── README.md └── SqliteExample ├── .gitignore ├── .idea ├── .name ├── compiler.xml ├── copyright │ └── profiles_settings.xml ├── encodings.xml ├── gradle.xml ├── misc.xml ├── modules.xml ├── scopes │ └── scope_settings.xml └── vcs.xml ├── SqliteExample.iml ├── app ├── .gitignore ├── app.iml ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── sample │ │ └── foo │ │ └── sqliteexample │ │ └── ApplicationTest.java │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── sample │ │ └── foo │ │ └── sqliteexample │ │ ├── CreateOrEditActivity.java │ │ ├── ExampleDBHelper.java │ │ └── MainActivity.java │ └── res │ ├── layout │ ├── activity_edit.xml │ ├── activity_main.xml │ └── person_info.xml │ ├── menu │ ├── menu_activity_edit.xml │ └── menu_main.xml │ ├── mipmap-hdpi │ └── ic_launcher.png │ ├── mipmap-mdpi │ └── ic_launcher.png │ ├── mipmap-xhdpi │ └── ic_launcher.png │ ├── mipmap-xxhdpi │ └── ic_launcher.png │ ├── values-sw600dp │ └── dimens.xml │ ├── values-w820dp │ └── dimens.xml │ └── values │ ├── dimens.xml │ ├── strings.xml │ └── styles.xml ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2015 obaro 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | 23 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # android-sqlite-sample 2 | Sample project showing how to use sqlite in an android app 3 | 4 | Creates a single table in a database. Shows "SELECT", "UPDATE" and "DELETE". 5 | -------------------------------------------------------------------------------- /SqliteExample/.gitignore: -------------------------------------------------------------------------------- 1 | .gradle 2 | /local.properties 3 | /.idea/workspace.xml 4 | /.idea/libraries 5 | .DS_Store 6 | /build 7 | -------------------------------------------------------------------------------- /SqliteExample/.idea/.name: -------------------------------------------------------------------------------- 1 | SqliteExample -------------------------------------------------------------------------------- /SqliteExample/.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 22 | 23 | 24 | -------------------------------------------------------------------------------- /SqliteExample/.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /SqliteExample/.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /SqliteExample/.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 16 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /SqliteExample/.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /SqliteExample/.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /SqliteExample/.idea/scopes/scope_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 5 | -------------------------------------------------------------------------------- /SqliteExample/.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /SqliteExample/SqliteExample.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /SqliteExample/app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /SqliteExample/app/app.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | -------------------------------------------------------------------------------- /SqliteExample/app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 21 5 | buildToolsVersion "21.1.2" 6 | 7 | defaultConfig { 8 | applicationId "com.sample.foo.sqliteexample" 9 | minSdkVersion 14 10 | targetSdkVersion 21 11 | versionCode 1 12 | versionName "1.0" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | compile fileTree(dir: 'libs', include: ['*.jar']) 24 | compile 'com.android.support:appcompat-v7:21.0.3' 25 | } 26 | -------------------------------------------------------------------------------- /SqliteExample/app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /home/obaro/Software/android-sdk-linux/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /SqliteExample/app/src/androidTest/java/com/sample/foo/sqliteexample/ApplicationTest.java: -------------------------------------------------------------------------------- 1 | package com.sample.foo.sqliteexample; 2 | 3 | import android.app.Application; 4 | import android.test.ApplicationTestCase; 5 | 6 | /** 7 | * Testing Fundamentals 8 | */ 9 | public class ApplicationTest extends ApplicationTestCase { 10 | public ApplicationTest() { 11 | super(Application.class); 12 | } 13 | } -------------------------------------------------------------------------------- /SqliteExample/app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 10 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /SqliteExample/app/src/main/java/com/sample/foo/sqliteexample/CreateOrEditActivity.java: -------------------------------------------------------------------------------- 1 | package com.sample.foo.sqliteexample; 2 | 3 | import android.app.AlertDialog; 4 | import android.content.DialogInterface; 5 | import android.content.Intent; 6 | import android.database.Cursor; 7 | import android.support.v7.app.ActionBarActivity; 8 | import android.os.Bundle; 9 | import android.view.View; 10 | import android.widget.Button; 11 | import android.widget.EditText; 12 | import android.widget.LinearLayout; 13 | import android.widget.Toast; 14 | 15 | 16 | public class CreateOrEditActivity extends ActionBarActivity implements View.OnClickListener { 17 | 18 | 19 | private ExampleDBHelper dbHelper ; 20 | EditText nameEditText; 21 | EditText genderEditText; 22 | EditText ageEditText; 23 | 24 | Button saveButton; 25 | LinearLayout buttonLayout; 26 | Button editButton, deleteButton; 27 | 28 | int personID; 29 | 30 | @Override 31 | protected void onCreate(Bundle savedInstanceState) { 32 | super.onCreate(savedInstanceState); 33 | 34 | personID = getIntent().getIntExtra(MainActivity.KEY_EXTRA_CONTACT_ID, 0); 35 | 36 | setContentView(R.layout.activity_edit); 37 | nameEditText = (EditText) findViewById(R.id.editTextName); 38 | genderEditText = (EditText) findViewById(R.id.editTextGender); 39 | ageEditText = (EditText) findViewById(R.id.editTextAge); 40 | 41 | saveButton = (Button) findViewById(R.id.saveButton); 42 | saveButton.setOnClickListener(this); 43 | buttonLayout = (LinearLayout) findViewById(R.id.buttonLayout); 44 | editButton = (Button) findViewById(R.id.editButton); 45 | editButton.setOnClickListener(this); 46 | deleteButton = (Button) findViewById(R.id.deleteButton); 47 | deleteButton.setOnClickListener(this); 48 | 49 | dbHelper = new ExampleDBHelper(this); 50 | 51 | if(personID > 0) { 52 | saveButton.setVisibility(View.GONE); 53 | buttonLayout.setVisibility(View.VISIBLE); 54 | 55 | Cursor rs = dbHelper.getPerson(personID); 56 | rs.moveToFirst(); 57 | String personName = rs.getString(rs.getColumnIndex(ExampleDBHelper.PERSON_COLUMN_NAME)); 58 | String personGender = rs.getString(rs.getColumnIndex(ExampleDBHelper.PERSON_COLUMN_GENDER)); 59 | int personAge = rs.getInt(rs.getColumnIndex(ExampleDBHelper.PERSON_COLUMN_AGE)); 60 | if (!rs.isClosed()) { 61 | rs.close(); 62 | } 63 | 64 | nameEditText.setText(personName); 65 | nameEditText.setFocusable(false); 66 | nameEditText.setClickable(false); 67 | 68 | genderEditText.setText((CharSequence) personGender); 69 | genderEditText.setFocusable(false); 70 | genderEditText.setClickable(false); 71 | 72 | ageEditText.setText((CharSequence) (personAge + "")); 73 | ageEditText.setFocusable(false); 74 | ageEditText.setClickable(false); 75 | } 76 | } 77 | 78 | @Override 79 | public void onClick(View view) { 80 | switch (view.getId()) { 81 | case R.id.saveButton: 82 | persistPerson(); 83 | return; 84 | case R.id.editButton: 85 | saveButton.setVisibility(View.VISIBLE); 86 | buttonLayout.setVisibility(View.GONE); 87 | nameEditText.setEnabled(true); 88 | nameEditText.setFocusableInTouchMode(true); 89 | nameEditText.setClickable(true); 90 | 91 | genderEditText.setEnabled(true); 92 | genderEditText.setFocusableInTouchMode(true); 93 | genderEditText.setClickable(true); 94 | 95 | ageEditText.setEnabled(true); 96 | ageEditText.setFocusableInTouchMode(true); 97 | ageEditText.setClickable(true); 98 | return; 99 | case R.id.deleteButton: 100 | AlertDialog.Builder builder = new AlertDialog.Builder(this); 101 | builder.setMessage(R.string.deletePerson) 102 | .setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() { 103 | public void onClick(DialogInterface dialog, int id) { 104 | dbHelper.deletePerson(personID); 105 | Toast.makeText(getApplicationContext(), "Deleted Successfully", Toast.LENGTH_SHORT).show(); 106 | Intent intent = new Intent(getApplicationContext(), MainActivity.class); 107 | intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 108 | startActivity(intent); 109 | } 110 | }) 111 | .setNegativeButton(R.string.no, new DialogInterface.OnClickListener() { 112 | public void onClick(DialogInterface dialog, int id) { 113 | // User cancelled the dialog 114 | } 115 | }); 116 | AlertDialog d = builder.create(); 117 | d.setTitle("Delete Person?"); 118 | d.show(); 119 | return; 120 | } 121 | } 122 | 123 | public void persistPerson() { 124 | if(personID > 0) { 125 | if(dbHelper.updatePerson(personID, nameEditText.getText().toString(), 126 | genderEditText.getText().toString(), 127 | Integer.parseInt(ageEditText.getText().toString()))) { 128 | Toast.makeText(getApplicationContext(), "Person Update Successful", Toast.LENGTH_SHORT).show(); 129 | Intent intent = new Intent(getApplicationContext(), MainActivity.class); 130 | intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 131 | startActivity(intent); 132 | } 133 | else { 134 | Toast.makeText(getApplicationContext(), "Person Update Failed", Toast.LENGTH_SHORT).show(); 135 | } 136 | } 137 | else { 138 | if(dbHelper.insertPerson(nameEditText.getText().toString(), 139 | genderEditText.getText().toString(), 140 | Integer.parseInt(ageEditText.getText().toString()))) { 141 | Toast.makeText(getApplicationContext(), "Person Inserted", Toast.LENGTH_SHORT).show(); 142 | } 143 | else{ 144 | Toast.makeText(getApplicationContext(), "Could not Insert person", Toast.LENGTH_SHORT).show(); 145 | } 146 | Intent intent = new Intent(getApplicationContext(), MainActivity.class); 147 | intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 148 | startActivity(intent); 149 | } 150 | } 151 | } 152 | -------------------------------------------------------------------------------- /SqliteExample/app/src/main/java/com/sample/foo/sqliteexample/ExampleDBHelper.java: -------------------------------------------------------------------------------- 1 | package com.sample.foo.sqliteexample; 2 | 3 | import android.content.ContentValues; 4 | import android.content.Context; 5 | import android.database.Cursor; 6 | import android.database.DatabaseUtils; 7 | import android.database.sqlite.SQLiteDatabase; 8 | import android.database.sqlite.SQLiteOpenHelper; 9 | 10 | import java.util.ArrayList; 11 | import java.util.HashMap; 12 | 13 | /** 14 | * Created by obaro on 02/04/2015. 15 | */ 16 | public class ExampleDBHelper extends SQLiteOpenHelper { 17 | 18 | public static final String DATABASE_NAME = "SQLiteExample.db"; 19 | private static final int DATABASE_VERSION = 2; 20 | 21 | public static final String PERSON_TABLE_NAME = "person"; 22 | public static final String PERSON_COLUMN_ID = "_id"; 23 | public static final String PERSON_COLUMN_NAME = "name"; 24 | public static final String PERSON_COLUMN_GENDER = "gender"; 25 | public static final String PERSON_COLUMN_AGE = "age"; 26 | 27 | public ExampleDBHelper(Context context) { 28 | super(context, DATABASE_NAME , null, DATABASE_VERSION); 29 | } 30 | 31 | @Override 32 | public void onCreate(SQLiteDatabase db) { 33 | db.execSQL( 34 | "CREATE TABLE " + PERSON_TABLE_NAME + 35 | "(" + PERSON_COLUMN_ID + " INTEGER PRIMARY KEY, " + 36 | PERSON_COLUMN_NAME + " TEXT, " + 37 | PERSON_COLUMN_GENDER + " TEXT, " + 38 | PERSON_COLUMN_AGE + " INTEGER)" 39 | ); 40 | } 41 | 42 | @Override 43 | public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 44 | db.execSQL("DROP TABLE IF EXISTS " + PERSON_TABLE_NAME); 45 | onCreate(db); 46 | } 47 | 48 | public boolean insertPerson(String name, String gender, int age) { 49 | SQLiteDatabase db = this.getWritableDatabase(); 50 | ContentValues contentValues = new ContentValues(); 51 | 52 | contentValues.put(PERSON_COLUMN_NAME, name); 53 | contentValues.put(PERSON_COLUMN_GENDER, gender); 54 | contentValues.put(PERSON_COLUMN_AGE, age); 55 | 56 | db.insert(PERSON_TABLE_NAME, null, contentValues); 57 | return true; 58 | } 59 | 60 | public int numberOfRows() { 61 | SQLiteDatabase db = this.getReadableDatabase(); 62 | int numRows = (int) DatabaseUtils.queryNumEntries(db, PERSON_TABLE_NAME); 63 | return numRows; 64 | } 65 | 66 | public boolean updatePerson(Integer id, String name, String gender, int age) { 67 | SQLiteDatabase db = this.getWritableDatabase(); 68 | ContentValues contentValues = new ContentValues(); 69 | contentValues.put(PERSON_COLUMN_NAME, name); 70 | contentValues.put(PERSON_COLUMN_GENDER, gender); 71 | contentValues.put(PERSON_COLUMN_AGE, age); 72 | db.update(PERSON_TABLE_NAME, contentValues, PERSON_COLUMN_ID + " = ? ", new String[] { Integer.toString(id) } ); 73 | return true; 74 | } 75 | 76 | public Integer deletePerson(Integer id) { 77 | SQLiteDatabase db = this.getWritableDatabase(); 78 | return db.delete(PERSON_TABLE_NAME, 79 | PERSON_COLUMN_ID + " = ? ", 80 | new String[] { Integer.toString(id) }); 81 | } 82 | 83 | public Cursor getPerson(int id) { 84 | SQLiteDatabase db = this.getReadableDatabase(); 85 | Cursor res = db.rawQuery("SELECT * FROM " + PERSON_TABLE_NAME + " WHERE " + 86 | PERSON_COLUMN_ID + "=?", new String[]{Integer.toString(id)}); 87 | return res; 88 | } 89 | 90 | public Cursor getAllPersons() { 91 | SQLiteDatabase db = this.getReadableDatabase(); 92 | Cursor res = db.rawQuery( "SELECT * FROM " + PERSON_TABLE_NAME, null ); 93 | return res; 94 | } 95 | } -------------------------------------------------------------------------------- /SqliteExample/app/src/main/java/com/sample/foo/sqliteexample/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.sample.foo.sqliteexample; 2 | 3 | import android.content.Intent; 4 | import android.database.Cursor; 5 | import android.support.v7.app.ActionBarActivity; 6 | import android.os.Bundle; 7 | import android.view.View; 8 | import android.widget.AdapterView; 9 | import android.widget.Button; 10 | import android.widget.ListView; 11 | import android.widget.SimpleCursorAdapter; 12 | 13 | 14 | public class MainActivity extends ActionBarActivity { 15 | public final static String KEY_EXTRA_CONTACT_ID = "KEY_EXTRA_CONTACT_ID"; 16 | 17 | private ListView listView; 18 | ExampleDBHelper dbHelper; 19 | 20 | @Override 21 | protected void onCreate(Bundle savedInstanceState) { 22 | super.onCreate(savedInstanceState); 23 | setContentView(R.layout.activity_main); 24 | 25 | Button button = (Button) findViewById(R.id.addNew); 26 | button.setOnClickListener(new View.OnClickListener() { 27 | @Override 28 | public void onClick(View view) { 29 | Intent intent = new Intent(MainActivity.this, CreateOrEditActivity.class); 30 | intent.putExtra(KEY_EXTRA_CONTACT_ID, 0); 31 | startActivity(intent); 32 | } 33 | }); 34 | 35 | dbHelper = new ExampleDBHelper(this); 36 | 37 | final Cursor cursor = dbHelper.getAllPersons(); 38 | String [] columns = new String[] { 39 | ExampleDBHelper.PERSON_COLUMN_ID, 40 | ExampleDBHelper.PERSON_COLUMN_NAME 41 | }; 42 | int [] widgets = new int[] { 43 | R.id.personID, 44 | R.id.personName 45 | }; 46 | 47 | SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(this, R.layout.person_info, 48 | cursor, columns, widgets, 0); 49 | listView = (ListView)findViewById(R.id.listView1); 50 | listView.setAdapter(cursorAdapter); 51 | listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { 52 | 53 | @Override 54 | public void onItemClick(AdapterView listView, View view, 55 | int position, long id) { 56 | Cursor itemCursor = (Cursor) MainActivity.this.listView.getItemAtPosition(position); 57 | int personID = itemCursor.getInt(itemCursor.getColumnIndex(ExampleDBHelper.PERSON_COLUMN_ID)); 58 | Intent intent = new Intent(getApplicationContext(), CreateOrEditActivity.class); 59 | intent.putExtra(KEY_EXTRA_CONTACT_ID, personID); 60 | startActivity(intent); 61 | } 62 | }); 63 | 64 | } 65 | 66 | } -------------------------------------------------------------------------------- /SqliteExample/app/src/main/res/layout/activity_edit.xml: -------------------------------------------------------------------------------- 1 | 2 | 6 | 7 | 14 | 15 | 24 | 25 | 26 | 27 | 28 | 37 | 38 | 47 | 48 | 57 | 58 | 67 | 68 | 77 | 78 |