├── .gitignore ├── .idea ├── codeStyles │ └── Project.xml ├── gradle.xml ├── misc.xml └── runConfigurations.xml ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── jovanovic │ │ └── stefan │ │ └── sqlitetutorial │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── jovanovic │ │ │ └── stefan │ │ │ └── sqlitetutorial │ │ │ ├── AddActivity.java │ │ │ ├── CustomAdapter.java │ │ │ ├── MainActivity.java │ │ │ ├── MyDatabaseHelper.java │ │ │ └── UpdateActivity.java │ └── res │ │ ├── anim │ │ └── translate_anim.xml │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ ├── ic_add.xml │ │ ├── ic_delete.xml │ │ ├── ic_empty.xml │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ ├── activity_add.xml │ │ ├── activity_main.xml │ │ ├── activity_update.xml │ │ └── my_row.xml │ │ ├── menu │ │ └── my_menu.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── jovanovic │ └── stefan │ └── sqlitetutorial │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/caches 5 | /.idea/libraries 6 | /.idea/modules.xml 7 | /.idea/workspace.xml 8 | /.idea/navEditor.xml 9 | /.idea/assetWizardSettings.xml 10 | .DS_Store 11 | /build 12 | /captures 13 | .externalNativeBuild 14 | .cxx 15 | -------------------------------------------------------------------------------- /.idea/codeStyles/Project.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 |
7 | 8 | 9 | 10 | xmlns:android 11 | 12 | ^$ 13 | 14 | 15 | 16 |
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18 | 19 | 20 | 21 | xmlns:.* 22 | 23 | ^$ 24 | 25 | 26 | BY_NAME 27 | 28 |
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30 | 31 | 32 | 33 | .*:id 34 | 35 | http://schemas.android.com/apk/res/android 36 | 37 | 38 | 39 |
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41 | 42 | 43 | 44 | .*:name 45 | 46 | http://schemas.android.com/apk/res/android 47 | 48 | 49 | 50 |
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63 | 64 | 65 | 66 | style 67 | 68 | ^$ 69 | 70 | 71 | 72 |
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74 | 75 | 76 | 77 | .* 78 | 79 | ^$ 80 | 81 | 82 | BY_NAME 83 | 84 |
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86 | 87 | 88 | 89 | .* 90 | 91 | http://schemas.android.com/apk/res/android 92 | 93 | 94 | ANDROID_ATTRIBUTE_ORDER 95 | 96 |
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98 | 99 | 100 | 101 | .* 102 | 103 | .* 104 | 105 | 106 | BY_NAME 107 | 108 |
109 | 110 | 111 | 112 | 113 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 15 | 16 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 14 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | SQLite + Android - Complete Tutorial 2 | 3 | Note: Video tutorials will be available on my Youtube channel (Stevdza-San) soon. 4 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 28 5 | defaultConfig { 6 | applicationId "com.jovanovic.stefan.sqlitetutorial" 7 | minSdkVersion 16 8 | targetSdkVersion 28 9 | versionCode 1 10 | versionName "1.0" 11 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 12 | vectorDrawables.useSupportLibrary = true 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | implementation fileTree(dir: 'libs', include: ['*.jar']) 24 | implementation 'androidx.appcompat:appcompat:1.1.0' 25 | implementation 'androidx.constraintlayout:constraintlayout:1.1.3' 26 | testImplementation 'junit:junit:4.12' 27 | androidTestImplementation 'androidx.test.ext:junit:1.1.1' 28 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0' 29 | implementation 'androidx.recyclerview:recyclerview:1.1.0' 30 | implementation 'com.google.android.material:material:1.0.0' 31 | } 32 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/jovanovic/stefan/sqlitetutorial/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.jovanovic.stefan.sqlitetutorial; 2 | 3 | import android.content.Context; 4 | 5 | import androidx.test.platform.app.InstrumentationRegistry; 6 | import androidx.test.ext.junit.runners.AndroidJUnit4; 7 | 8 | import org.junit.Test; 9 | import org.junit.runner.RunWith; 10 | 11 | import static org.junit.Assert.*; 12 | 13 | /** 14 | * Instrumented test, which will execute on an Android device. 15 | * 16 | * @see Testing documentation 17 | */ 18 | @RunWith(AndroidJUnit4.class) 19 | public class ExampleInstrumentedTest { 20 | @Test 21 | public void useAppContext() { 22 | // Context of the app under test. 23 | Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext(); 24 | 25 | assertEquals("com.jovanovic.stefan.sqlitetutorial", appContext.getPackageName()); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 12 | 14 | 18 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | -------------------------------------------------------------------------------- /app/src/main/java/com/jovanovic/stefan/sqlitetutorial/AddActivity.java: -------------------------------------------------------------------------------- 1 | package com.jovanovic.stefan.sqlitetutorial; 2 | 3 | import androidx.appcompat.app.AppCompatActivity; 4 | 5 | import android.os.Bundle; 6 | import android.view.View; 7 | import android.widget.Button; 8 | import android.widget.EditText; 9 | 10 | public class AddActivity extends AppCompatActivity { 11 | 12 | EditText title_input, author_input, pages_input; 13 | Button add_button; 14 | 15 | @Override 16 | protected void onCreate(Bundle savedInstanceState) { 17 | super.onCreate(savedInstanceState); 18 | setContentView(R.layout.activity_add); 19 | 20 | title_input = findViewById(R.id.title_input); 21 | author_input = findViewById(R.id.author_input); 22 | pages_input = findViewById(R.id.pages_input); 23 | add_button = findViewById(R.id.add_button); 24 | add_button.setOnClickListener(new View.OnClickListener() { 25 | @Override 26 | public void onClick(View view) { 27 | MyDatabaseHelper myDB = new MyDatabaseHelper(AddActivity.this); 28 | myDB.addBook(title_input.getText().toString().trim(), 29 | author_input.getText().toString().trim(), 30 | Integer.valueOf(pages_input.getText().toString().trim())); 31 | } 32 | }); 33 | } 34 | } 35 | -------------------------------------------------------------------------------- /app/src/main/java/com/jovanovic/stefan/sqlitetutorial/CustomAdapter.java: -------------------------------------------------------------------------------- 1 | package com.jovanovic.stefan.sqlitetutorial; 2 | 3 | import android.app.Activity; 4 | import android.content.Context; 5 | import android.content.Intent; 6 | import android.os.Build; 7 | import android.view.LayoutInflater; 8 | import android.view.View; 9 | import android.view.ViewGroup; 10 | import android.view.animation.Animation; 11 | import android.view.animation.AnimationUtils; 12 | import android.widget.LinearLayout; 13 | import android.widget.TextView; 14 | 15 | import androidx.annotation.NonNull; 16 | import androidx.annotation.RequiresApi; 17 | import androidx.cardview.widget.CardView; 18 | import androidx.recyclerview.widget.RecyclerView; 19 | 20 | import java.util.ArrayList; 21 | 22 | public class CustomAdapter extends RecyclerView.Adapter { 23 | 24 | private Context context; 25 | private Activity activity; 26 | private ArrayList book_id, book_title, book_author, book_pages; 27 | 28 | CustomAdapter(Activity activity, Context context, ArrayList book_id, ArrayList book_title, ArrayList book_author, 29 | ArrayList book_pages){ 30 | this.activity = activity; 31 | this.context = context; 32 | this.book_id = book_id; 33 | this.book_title = book_title; 34 | this.book_author = book_author; 35 | this.book_pages = book_pages; 36 | } 37 | 38 | @NonNull 39 | @Override 40 | public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { 41 | LayoutInflater inflater = LayoutInflater.from(context); 42 | View view = inflater.inflate(R.layout.my_row, parent, false); 43 | return new MyViewHolder(view); 44 | } 45 | 46 | @RequiresApi(api = Build.VERSION_CODES.M) 47 | @Override 48 | public void onBindViewHolder(@NonNull final MyViewHolder holder, final int position) { 49 | holder.book_id_txt.setText(String.valueOf(book_id.get(position))); 50 | holder.book_title_txt.setText(String.valueOf(book_title.get(position))); 51 | holder.book_author_txt.setText(String.valueOf(book_author.get(position))); 52 | holder.book_pages_txt.setText(String.valueOf(book_pages.get(position))); 53 | //Recyclerview onClickListener 54 | holder.mainLayout.setOnClickListener(new View.OnClickListener() { 55 | @Override 56 | public void onClick(View view) { 57 | Intent intent = new Intent(context, UpdateActivity.class); 58 | intent.putExtra("id", String.valueOf(book_id.get(position))); 59 | intent.putExtra("title", String.valueOf(book_title.get(position))); 60 | intent.putExtra("author", String.valueOf(book_author.get(position))); 61 | intent.putExtra("pages", String.valueOf(book_pages.get(position))); 62 | activity.startActivityForResult(intent, 1); 63 | } 64 | }); 65 | 66 | 67 | } 68 | 69 | @Override 70 | public int getItemCount() { 71 | return book_id.size(); 72 | } 73 | 74 | class MyViewHolder extends RecyclerView.ViewHolder { 75 | 76 | TextView book_id_txt, book_title_txt, book_author_txt, book_pages_txt; 77 | LinearLayout mainLayout; 78 | 79 | MyViewHolder(@NonNull View itemView) { 80 | super(itemView); 81 | book_id_txt = itemView.findViewById(R.id.book_id_txt); 82 | book_title_txt = itemView.findViewById(R.id.book_title_txt); 83 | book_author_txt = itemView.findViewById(R.id.book_author_txt); 84 | book_pages_txt = itemView.findViewById(R.id.book_pages_txt); 85 | mainLayout = itemView.findViewById(R.id.mainLayout); 86 | //Animate Recyclerview 87 | Animation translate_anim = AnimationUtils.loadAnimation(context, R.anim.translate_anim); 88 | mainLayout.setAnimation(translate_anim); 89 | } 90 | 91 | } 92 | 93 | } 94 | -------------------------------------------------------------------------------- /app/src/main/java/com/jovanovic/stefan/sqlitetutorial/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.jovanovic.stefan.sqlitetutorial; 2 | 3 | import androidx.annotation.Nullable; 4 | import androidx.appcompat.app.AlertDialog; 5 | import androidx.appcompat.app.AppCompatActivity; 6 | import androidx.recyclerview.widget.LinearLayoutManager; 7 | import androidx.recyclerview.widget.RecyclerView; 8 | 9 | import android.content.DialogInterface; 10 | import android.content.Intent; 11 | import android.database.Cursor; 12 | import android.database.sqlite.SQLiteDatabase; 13 | import android.os.Bundle; 14 | import android.view.ContextMenu; 15 | import android.view.Menu; 16 | import android.view.MenuInflater; 17 | import android.view.MenuItem; 18 | import android.view.View; 19 | import android.widget.ImageView; 20 | import android.widget.TextView; 21 | import android.widget.Toast; 22 | 23 | import com.google.android.material.floatingactionbutton.FloatingActionButton; 24 | 25 | import java.util.ArrayList; 26 | 27 | public class MainActivity extends AppCompatActivity { 28 | 29 | RecyclerView recyclerView; 30 | FloatingActionButton add_button; 31 | ImageView empty_imageview; 32 | TextView no_data; 33 | 34 | MyDatabaseHelper myDB; 35 | ArrayList book_id, book_title, book_author, book_pages; 36 | CustomAdapter customAdapter; 37 | 38 | @Override 39 | protected void onCreate(Bundle savedInstanceState) { 40 | super.onCreate(savedInstanceState); 41 | setContentView(R.layout.activity_main); 42 | 43 | recyclerView = findViewById(R.id.recyclerView); 44 | add_button = findViewById(R.id.add_button); 45 | empty_imageview = findViewById(R.id.empty_imageview); 46 | no_data = findViewById(R.id.no_data); 47 | add_button.setOnClickListener(new View.OnClickListener() { 48 | @Override 49 | public void onClick(View view) { 50 | Intent intent = new Intent(MainActivity.this, AddActivity.class); 51 | startActivity(intent); 52 | } 53 | }); 54 | 55 | myDB = new MyDatabaseHelper(MainActivity.this); 56 | book_id = new ArrayList<>(); 57 | book_title = new ArrayList<>(); 58 | book_author = new ArrayList<>(); 59 | book_pages = new ArrayList<>(); 60 | 61 | storeDataInArrays(); 62 | 63 | customAdapter = new CustomAdapter(MainActivity.this,this, book_id, book_title, book_author, 64 | book_pages); 65 | recyclerView.setAdapter(customAdapter); 66 | recyclerView.setLayoutManager(new LinearLayoutManager(MainActivity.this)); 67 | 68 | } 69 | 70 | @Override 71 | protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { 72 | super.onActivityResult(requestCode, resultCode, data); 73 | if(requestCode == 1){ 74 | recreate(); 75 | } 76 | } 77 | 78 | void storeDataInArrays(){ 79 | Cursor cursor = myDB.readAllData(); 80 | if(cursor.getCount() == 0){ 81 | empty_imageview.setVisibility(View.VISIBLE); 82 | no_data.setVisibility(View.VISIBLE); 83 | }else{ 84 | while (cursor.moveToNext()){ 85 | book_id.add(cursor.getString(0)); 86 | book_title.add(cursor.getString(1)); 87 | book_author.add(cursor.getString(2)); 88 | book_pages.add(cursor.getString(3)); 89 | } 90 | empty_imageview.setVisibility(View.GONE); 91 | no_data.setVisibility(View.GONE); 92 | } 93 | } 94 | 95 | @Override 96 | public boolean onCreateOptionsMenu(Menu menu) { 97 | MenuInflater inflater = getMenuInflater(); 98 | inflater.inflate(R.menu.my_menu, menu); 99 | return super.onCreateOptionsMenu(menu); 100 | } 101 | 102 | @Override 103 | public boolean onOptionsItemSelected(MenuItem item) { 104 | if(item.getItemId() == R.id.delete_all){ 105 | confirmDialog(); 106 | } 107 | return super.onOptionsItemSelected(item); 108 | } 109 | 110 | void confirmDialog(){ 111 | AlertDialog.Builder builder = new AlertDialog.Builder(this); 112 | builder.setTitle("Delete All?"); 113 | builder.setMessage("Are you sure you want to delete all Data?"); 114 | builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() { 115 | @Override 116 | public void onClick(DialogInterface dialogInterface, int i) { 117 | MyDatabaseHelper myDB = new MyDatabaseHelper(MainActivity.this); 118 | myDB.deleteAllData(); 119 | //Refresh Activity 120 | Intent intent = new Intent(MainActivity.this, MainActivity.class); 121 | startActivity(intent); 122 | finish(); 123 | } 124 | }); 125 | builder.setNegativeButton("No", new DialogInterface.OnClickListener() { 126 | @Override 127 | public void onClick(DialogInterface dialogInterface, int i) { 128 | 129 | } 130 | }); 131 | builder.create().show(); 132 | } 133 | } 134 | -------------------------------------------------------------------------------- /app/src/main/java/com/jovanovic/stefan/sqlitetutorial/MyDatabaseHelper.java: -------------------------------------------------------------------------------- 1 | package com.jovanovic.stefan.sqlitetutorial; 2 | 3 | import android.content.ContentValues; 4 | import android.content.Context; 5 | import android.database.Cursor; 6 | import android.database.sqlite.SQLiteDatabase; 7 | import android.database.sqlite.SQLiteOpenHelper; 8 | import android.util.Log; 9 | import android.widget.Toast; 10 | import androidx.annotation.Nullable; 11 | 12 | class MyDatabaseHelper extends SQLiteOpenHelper { 13 | 14 | private Context context; 15 | private static final String DATABASE_NAME = "BookLibrary.db"; 16 | private static final int DATABASE_VERSION = 1; 17 | 18 | private static final String TABLE_NAME = "my_library"; 19 | private static final String COLUMN_ID = "_id"; 20 | private static final String COLUMN_TITLE = "book_title"; 21 | private static final String COLUMN_AUTHOR = "book_author"; 22 | private static final String COLUMN_PAGES = "book_pages"; 23 | 24 | MyDatabaseHelper(@Nullable Context context) { 25 | super(context, DATABASE_NAME, null, DATABASE_VERSION); 26 | this.context = context; 27 | } 28 | 29 | @Override 30 | public void onCreate(SQLiteDatabase db) { 31 | String query = "CREATE TABLE " + TABLE_NAME + 32 | " (" + COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + 33 | COLUMN_TITLE + " TEXT, " + 34 | COLUMN_AUTHOR + " TEXT, " + 35 | COLUMN_PAGES + " INTEGER);"; 36 | db.execSQL(query); 37 | } 38 | @Override 39 | public void onUpgrade(SQLiteDatabase db, int i, int i1) { 40 | db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME); 41 | onCreate(db); 42 | } 43 | 44 | void addBook(String title, String author, int pages){ 45 | SQLiteDatabase db = this.getWritableDatabase(); 46 | ContentValues cv = new ContentValues(); 47 | 48 | cv.put(COLUMN_TITLE, title); 49 | cv.put(COLUMN_AUTHOR, author); 50 | cv.put(COLUMN_PAGES, pages); 51 | long result = db.insert(TABLE_NAME,null, cv); 52 | if(result == -1){ 53 | Toast.makeText(context, "Failed", Toast.LENGTH_SHORT).show(); 54 | }else { 55 | Toast.makeText(context, "Added Successfully!", Toast.LENGTH_SHORT).show(); 56 | } 57 | } 58 | 59 | Cursor readAllData(){ 60 | String query = "SELECT * FROM " + TABLE_NAME; 61 | SQLiteDatabase db = this.getReadableDatabase(); 62 | 63 | Cursor cursor = null; 64 | if(db != null){ 65 | cursor = db.rawQuery(query, null); 66 | } 67 | return cursor; 68 | } 69 | 70 | void updateData(String row_id, String title, String author, String pages){ 71 | SQLiteDatabase db = this.getWritableDatabase(); 72 | ContentValues cv = new ContentValues(); 73 | cv.put(COLUMN_TITLE, title); 74 | cv.put(COLUMN_AUTHOR, author); 75 | cv.put(COLUMN_PAGES, pages); 76 | 77 | long result = db.update(TABLE_NAME, cv, "_id=?", new String[]{row_id}); 78 | if(result == -1){ 79 | Toast.makeText(context, "Failed", Toast.LENGTH_SHORT).show(); 80 | }else { 81 | Toast.makeText(context, "Updated Successfully!", Toast.LENGTH_SHORT).show(); 82 | } 83 | 84 | } 85 | 86 | void deleteOneRow(String row_id){ 87 | SQLiteDatabase db = this.getWritableDatabase(); 88 | long result = db.delete(TABLE_NAME, "_id=?", new String[]{row_id}); 89 | if(result == -1){ 90 | Toast.makeText(context, "Failed to Delete.", Toast.LENGTH_SHORT).show(); 91 | }else{ 92 | Toast.makeText(context, "Successfully Deleted.", Toast.LENGTH_SHORT).show(); 93 | } 94 | } 95 | 96 | void deleteAllData(){ 97 | SQLiteDatabase db = this.getWritableDatabase(); 98 | db.execSQL("DELETE FROM " + TABLE_NAME); 99 | } 100 | 101 | } 102 | -------------------------------------------------------------------------------- /app/src/main/java/com/jovanovic/stefan/sqlitetutorial/UpdateActivity.java: -------------------------------------------------------------------------------- 1 | package com.jovanovic.stefan.sqlitetutorial; 2 | 3 | import androidx.appcompat.app.ActionBar; 4 | import androidx.appcompat.app.AlertDialog; 5 | import androidx.appcompat.app.AppCompatActivity; 6 | 7 | import android.content.DialogInterface; 8 | import android.os.Bundle; 9 | import android.util.Log; 10 | import android.view.View; 11 | import android.widget.Button; 12 | import android.widget.EditText; 13 | import android.widget.Toast; 14 | 15 | public class UpdateActivity extends AppCompatActivity { 16 | 17 | EditText title_input, author_input, pages_input; 18 | Button update_button, delete_button; 19 | 20 | String id, title, author, pages; 21 | 22 | @Override 23 | protected void onCreate(Bundle savedInstanceState) { 24 | super.onCreate(savedInstanceState); 25 | setContentView(R.layout.activity_update); 26 | 27 | title_input = findViewById(R.id.title_input2); 28 | author_input = findViewById(R.id.author_input2); 29 | pages_input = findViewById(R.id.pages_input2); 30 | update_button = findViewById(R.id.update_button); 31 | delete_button = findViewById(R.id.delete_button); 32 | 33 | //First we call this 34 | getAndSetIntentData(); 35 | 36 | //Set actionbar title after getAndSetIntentData method 37 | ActionBar ab = getSupportActionBar(); 38 | if (ab != null) { 39 | ab.setTitle(title); 40 | } 41 | 42 | update_button.setOnClickListener(new View.OnClickListener() { 43 | @Override 44 | public void onClick(View view) { 45 | //And only then we call this 46 | MyDatabaseHelper myDB = new MyDatabaseHelper(UpdateActivity.this); 47 | title = title_input.getText().toString().trim(); 48 | author = author_input.getText().toString().trim(); 49 | pages = pages_input.getText().toString().trim(); 50 | myDB.updateData(id, title, author, pages); 51 | } 52 | }); 53 | delete_button.setOnClickListener(new View.OnClickListener() { 54 | @Override 55 | public void onClick(View view) { 56 | confirmDialog(); 57 | } 58 | }); 59 | 60 | } 61 | 62 | void getAndSetIntentData(){ 63 | if(getIntent().hasExtra("id") && getIntent().hasExtra("title") && 64 | getIntent().hasExtra("author") && getIntent().hasExtra("pages")){ 65 | //Getting Data from Intent 66 | id = getIntent().getStringExtra("id"); 67 | title = getIntent().getStringExtra("title"); 68 | author = getIntent().getStringExtra("author"); 69 | pages = getIntent().getStringExtra("pages"); 70 | 71 | //Setting Intent Data 72 | title_input.setText(title); 73 | author_input.setText(author); 74 | pages_input.setText(pages); 75 | Log.d("stev", title+" "+author+" "+pages); 76 | }else{ 77 | Toast.makeText(this, "No data.", Toast.LENGTH_SHORT).show(); 78 | } 79 | } 80 | 81 | void confirmDialog(){ 82 | AlertDialog.Builder builder = new AlertDialog.Builder(this); 83 | builder.setTitle("Delete " + title + " ?"); 84 | builder.setMessage("Are you sure you want to delete " + title + " ?"); 85 | builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() { 86 | @Override 87 | public void onClick(DialogInterface dialogInterface, int i) { 88 | MyDatabaseHelper myDB = new MyDatabaseHelper(UpdateActivity.this); 89 | myDB.deleteOneRow(id); 90 | finish(); 91 | } 92 | }); 93 | builder.setNegativeButton("No", new DialogInterface.OnClickListener() { 94 | @Override 95 | public void onClick(DialogInterface dialogInterface, int i) { 96 | 97 | } 98 | }); 99 | builder.create().show(); 100 | } 101 | } 102 | -------------------------------------------------------------------------------- /app/src/main/res/anim/translate_anim.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 8 | 9 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_add.xml: -------------------------------------------------------------------------------- 1 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_delete.xml: -------------------------------------------------------------------------------- 1 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_empty.xml: -------------------------------------------------------------------------------- 1 | 6 | 9 | 10 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_add.xml: -------------------------------------------------------------------------------- 1 | 2 | 9 | 10 | 21 | 22 | 33 | 34 | 45 | 46 |