└── SaveAndDisplaySQL ├── .gitignore ├── .idea ├── compiler.xml ├── copyright │ └── profiles_settings.xml ├── gradle.xml ├── misc.xml ├── modules.xml └── runConfigurations.xml ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── tabian │ │ └── saveanddisplaysql │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── tabian │ │ │ └── saveanddisplaysql │ │ │ ├── DatabaseHelper.java │ │ │ ├── EditDataActivity.java │ │ │ ├── ListDataActivity.java │ │ │ └── MainActivity.java │ └── res │ │ ├── layout │ │ ├── activity_main.xml │ │ ├── edit_data_layout.xml │ │ └── list_layout.xml │ │ ├── mipmap-hdpi │ │ └── ic_launcher.png │ │ ├── mipmap-mdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xhdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xxhdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xxxhdpi │ │ └── ic_launcher.png │ │ ├── values-w820dp │ │ └── dimens.xml │ │ └── values │ │ ├── colors.xml │ │ ├── dimens.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── tabian │ └── saveanddisplaysql │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /SaveAndDisplaySQL/.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/workspace.xml 5 | /.idea/libraries 6 | .DS_Store 7 | /build 8 | /captures 9 | .externalNativeBuild 10 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 18 | 19 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 19 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 46 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 24 5 | buildToolsVersion "24.0.1" 6 | defaultConfig { 7 | applicationId "com.tabian.saveanddisplaysql" 8 | minSdkVersion 18 9 | targetSdkVersion 24 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 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 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 25 | exclude group: 'com.android.support', module: 'support-annotations' 26 | }) 27 | compile 'com.android.support:appcompat-v7:24.2.1' 28 | testCompile 'junit:junit:4.12' 29 | } 30 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/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 C:\Users\User\AppData\Local\Android\sdk/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 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/app/src/androidTest/java/com/tabian/saveanddisplaysql/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.tabian.saveanddisplaysql; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumentation test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.tabian.saveanddisplaysql", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/app/src/main/java/com/tabian/saveanddisplaysql/DatabaseHelper.java: -------------------------------------------------------------------------------- 1 | package com.tabian.saveanddisplaysql; 2 | 3 | import android.content.ContentValues; 4 | import android.content.Context; 5 | import android.database.Cursor; 6 | import android.database.DatabaseErrorHandler; 7 | import android.database.sqlite.SQLiteDatabase; 8 | import android.database.sqlite.SQLiteOpenHelper; 9 | import android.util.Log; 10 | 11 | /** 12 | * Created by User on 2/28/2017. 13 | */ 14 | 15 | public class DatabaseHelper extends SQLiteOpenHelper { 16 | 17 | private static final String TAG = "DatabaseHelper"; 18 | 19 | private static final String TABLE_NAME = "people_table"; 20 | private static final String COL1 = "ID"; 21 | private static final String COL2 = "name"; 22 | 23 | 24 | public DatabaseHelper(Context context) { 25 | super(context, TABLE_NAME, null, 1); 26 | } 27 | 28 | @Override 29 | public void onCreate(SQLiteDatabase db) { 30 | String createTable = "CREATE TABLE " + TABLE_NAME + " (ID INTEGER PRIMARY KEY AUTOINCREMENT, " + 31 | COL2 +" TEXT)"; 32 | db.execSQL(createTable); 33 | } 34 | 35 | @Override 36 | public void onUpgrade(SQLiteDatabase db, int i, int i1) { 37 | db.execSQL("DROP IF TABLE EXISTS " + TABLE_NAME); 38 | onCreate(db); 39 | } 40 | 41 | public boolean addData(String item) { 42 | SQLiteDatabase db = this.getWritableDatabase(); 43 | ContentValues contentValues = new ContentValues(); 44 | contentValues.put(COL2, item); 45 | 46 | Log.d(TAG, "addData: Adding " + item + " to " + TABLE_NAME); 47 | 48 | long result = db.insert(TABLE_NAME, null, contentValues); 49 | 50 | //if date as inserted incorrectly it will return -1 51 | if (result == -1) { 52 | return false; 53 | } else { 54 | return true; 55 | } 56 | } 57 | 58 | /** 59 | * Returns all the data from database 60 | * @return 61 | */ 62 | public Cursor getData(){ 63 | SQLiteDatabase db = this.getWritableDatabase(); 64 | String query = "SELECT * FROM " + TABLE_NAME; 65 | Cursor data = db.rawQuery(query, null); 66 | return data; 67 | } 68 | 69 | /** 70 | * Returns only the ID that matches the name passed in 71 | * @param name 72 | * @return 73 | */ 74 | public Cursor getItemID(String name){ 75 | SQLiteDatabase db = this.getWritableDatabase(); 76 | String query = "SELECT " + COL1 + " FROM " + TABLE_NAME + 77 | " WHERE " + COL2 + " = '" + name + "'"; 78 | Cursor data = db.rawQuery(query, null); 79 | return data; 80 | } 81 | 82 | /** 83 | * Updates the name field 84 | * @param newName 85 | * @param id 86 | * @param oldName 87 | */ 88 | public void updateName(String newName, int id, String oldName){ 89 | SQLiteDatabase db = this.getWritableDatabase(); 90 | String query = "UPDATE " + TABLE_NAME + " SET " + COL2 + 91 | " = '" + newName + "' WHERE " + COL1 + " = '" + id + "'" + 92 | " AND " + COL2 + " = '" + oldName + "'"; 93 | Log.d(TAG, "updateName: query: " + query); 94 | Log.d(TAG, "updateName: Setting name to " + newName); 95 | db.execSQL(query); 96 | } 97 | 98 | /** 99 | * Delete from database 100 | * @param id 101 | * @param name 102 | */ 103 | public void deleteName(int id, String name){ 104 | SQLiteDatabase db = this.getWritableDatabase(); 105 | String query = "DELETE FROM " + TABLE_NAME + " WHERE " 106 | + COL1 + " = '" + id + "'" + 107 | " AND " + COL2 + " = '" + name + "'"; 108 | Log.d(TAG, "deleteName: query: " + query); 109 | Log.d(TAG, "deleteName: Deleting " + name + " from database."); 110 | db.execSQL(query); 111 | } 112 | 113 | } 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/app/src/main/java/com/tabian/saveanddisplaysql/EditDataActivity.java: -------------------------------------------------------------------------------- 1 | package com.tabian.saveanddisplaysql; 2 | 3 | import android.content.Intent; 4 | import android.os.Bundle; 5 | import android.support.annotation.Nullable; 6 | import android.support.v7.app.AppCompatActivity; 7 | import android.view.View; 8 | import android.widget.Button; 9 | import android.widget.EditText; 10 | import android.widget.Toast; 11 | 12 | /** 13 | * Created by User on 2/28/2017. 14 | */ 15 | 16 | public class EditDataActivity extends AppCompatActivity { 17 | 18 | private static final String TAG = "EditDataActivity"; 19 | 20 | private Button btnSave,btnDelete; 21 | private EditText editable_item; 22 | 23 | DatabaseHelper mDatabaseHelper; 24 | 25 | private String selectedName; 26 | private int selectedID; 27 | 28 | @Override 29 | protected void onCreate(@Nullable Bundle savedInstanceState) { 30 | super.onCreate(savedInstanceState); 31 | setContentView(R.layout.edit_data_layout); 32 | btnSave = (Button) findViewById(R.id.btnSave); 33 | btnDelete = (Button) findViewById(R.id.btnDelete); 34 | editable_item = (EditText) findViewById(R.id.editable_item); 35 | mDatabaseHelper = new DatabaseHelper(this); 36 | 37 | //get the intent extra from the ListDataActivity 38 | Intent receivedIntent = getIntent(); 39 | 40 | //now get the itemID we passed as an extra 41 | selectedID = receivedIntent.getIntExtra("id",-1); //NOTE: -1 is just the default value 42 | 43 | //now get the name we passed as an extra 44 | selectedName = receivedIntent.getStringExtra("name"); 45 | 46 | //set the text to show the current selected name 47 | editable_item.setText(selectedName); 48 | 49 | btnSave.setOnClickListener(new View.OnClickListener() { 50 | @Override 51 | public void onClick(View view) { 52 | String item = editable_item.getText().toString(); 53 | if(!item.equals("")){ 54 | mDatabaseHelper.updateName(item,selectedID,selectedName); 55 | }else{ 56 | toastMessage("You must enter a name"); 57 | } 58 | } 59 | }); 60 | 61 | btnDelete.setOnClickListener(new View.OnClickListener() { 62 | @Override 63 | public void onClick(View view) { 64 | mDatabaseHelper.deleteName(selectedID,selectedName); 65 | editable_item.setText(""); 66 | toastMessage("removed from database"); 67 | } 68 | }); 69 | 70 | } 71 | 72 | /** 73 | * customizable toast 74 | * @param message 75 | */ 76 | private void toastMessage(String message){ 77 | Toast.makeText(this,message, Toast.LENGTH_SHORT).show(); 78 | } 79 | } 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/app/src/main/java/com/tabian/saveanddisplaysql/ListDataActivity.java: -------------------------------------------------------------------------------- 1 | package com.tabian.saveanddisplaysql; 2 | 3 | import android.content.Intent; 4 | import android.database.Cursor; 5 | import android.os.Bundle; 6 | import android.support.annotation.Nullable; 7 | import android.support.v7.app.AppCompatActivity; 8 | import android.util.Log; 9 | import android.view.View; 10 | import android.widget.AdapterView; 11 | import android.widget.ArrayAdapter; 12 | import android.widget.ListAdapter; 13 | import android.widget.ListView; 14 | import android.widget.Toast; 15 | 16 | import java.util.ArrayList; 17 | 18 | /** 19 | * Created by User on 2/28/2017. 20 | */ 21 | 22 | public class ListDataActivity extends AppCompatActivity { 23 | 24 | private static final String TAG = "ListDataActivity"; 25 | 26 | DatabaseHelper mDatabaseHelper; 27 | 28 | private ListView mListView; 29 | 30 | @Override 31 | protected void onCreate(@Nullable Bundle savedInstanceState) { 32 | super.onCreate(savedInstanceState); 33 | setContentView(R.layout.list_layout); 34 | mListView = (ListView) findViewById(R.id.listView); 35 | mDatabaseHelper = new DatabaseHelper(this); 36 | 37 | populateListView(); 38 | } 39 | 40 | private void populateListView() { 41 | Log.d(TAG, "populateListView: Displaying data in the ListView."); 42 | 43 | //get the data and append to a list 44 | Cursor data = mDatabaseHelper.getData(); 45 | ArrayList listData = new ArrayList<>(); 46 | while(data.moveToNext()){ 47 | //get the value from the database in column 1 48 | //then add it to the ArrayList 49 | listData.add(data.getString(1)); 50 | } 51 | //create the list adapter and set the adapter 52 | ListAdapter adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, listData); 53 | mListView.setAdapter(adapter); 54 | 55 | //set an onItemClickListener to the ListView 56 | mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { 57 | @Override 58 | public void onItemClick(AdapterView adapterView, View view, int i, long l) { 59 | String name = adapterView.getItemAtPosition(i).toString(); 60 | Log.d(TAG, "onItemClick: You Clicked on " + name); 61 | 62 | Cursor data = mDatabaseHelper.getItemID(name); //get the id associated with that name 63 | int itemID = -1; 64 | while(data.moveToNext()){ 65 | itemID = data.getInt(0); 66 | } 67 | if(itemID > -1){ 68 | Log.d(TAG, "onItemClick: The ID is: " + itemID); 69 | Intent editScreenIntent = new Intent(ListDataActivity.this, EditDataActivity.class); 70 | editScreenIntent.putExtra("id",itemID); 71 | editScreenIntent.putExtra("name",name); 72 | startActivity(editScreenIntent); 73 | } 74 | else{ 75 | toastMessage("No ID associated with that name"); 76 | } 77 | } 78 | }); 79 | } 80 | 81 | /** 82 | * customizable toast 83 | * @param message 84 | */ 85 | private void toastMessage(String message){ 86 | Toast.makeText(this,message, Toast.LENGTH_SHORT).show(); 87 | } 88 | } 89 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/app/src/main/java/com/tabian/saveanddisplaysql/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.tabian.saveanddisplaysql; 2 | 3 | import android.content.Intent; 4 | import android.support.v7.app.AppCompatActivity; 5 | import android.os.Bundle; 6 | import android.view.View; 7 | import android.widget.Button; 8 | import android.widget.EditText; 9 | import android.widget.Toast; 10 | 11 | public class MainActivity extends AppCompatActivity { 12 | 13 | private static final String TAG = "MainActivity"; 14 | 15 | DatabaseHelper mDatabaseHelper; 16 | private Button btnAdd, btnViewData; 17 | private EditText editText; 18 | 19 | @Override 20 | protected void onCreate(Bundle savedInstanceState) { 21 | super.onCreate(savedInstanceState); 22 | setContentView(R.layout.activity_main); 23 | editText = (EditText) findViewById(R.id.editText); 24 | btnAdd = (Button) findViewById(R.id.btnAdd); 25 | btnViewData = (Button) findViewById(R.id.btnView); 26 | mDatabaseHelper = new DatabaseHelper(this); 27 | 28 | btnAdd.setOnClickListener(new View.OnClickListener() { 29 | @Override 30 | public void onClick(View v) { 31 | String newEntry = editText.getText().toString(); 32 | if (editText.length() != 0) { 33 | AddData(newEntry); 34 | editText.setText(""); 35 | } else { 36 | toastMessage("You must put something in the text field!"); 37 | } 38 | 39 | } 40 | }); 41 | 42 | btnViewData.setOnClickListener(new View.OnClickListener() { 43 | @Override 44 | public void onClick(View v) { 45 | Intent intent = new Intent(MainActivity.this, ListDataActivity.class); 46 | startActivity(intent); 47 | } 48 | }); 49 | 50 | } 51 | 52 | public void AddData(String newEntry) { 53 | boolean insertData = mDatabaseHelper.addData(newEntry); 54 | 55 | if (insertData) { 56 | toastMessage("Data Successfully Inserted!"); 57 | } else { 58 | toastMessage("Something went wrong"); 59 | } 60 | } 61 | 62 | /** 63 | * customizable toast 64 | * @param message 65 | */ 66 | private void toastMessage(String message){ 67 | Toast.makeText(this,message, Toast.LENGTH_SHORT).show(); 68 | } 69 | } 70 | -------------------------------------------------------------------------------- /SaveAndDisplaySQL/app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 11 | 12 | 16 | 22 | 23 | 24 | 29 | 30 |