anitaa1990

    public void addTasks(List<Note> newNotes) {
        NoteDiffUtil noteDiffUtil = new NoteDiffUtil(notes, newNotes);
        DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(noteDiffUtil);
        notes.clear();
        notes.addAll(newNotes);
        diffResult.dispatchUpdatesTo(this);
    }

anitaa1990

public class BroadcastReceiverLeakActivity extends AppCompatActivity {

    private BroadcastReceiver broadcastReceiver;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);
    }

anitaa1990

public class StaticReferenceLeakActivity extends AppCompatActivity {

    /*  
     * This is a bad idea! 
     */
    private static TextView textView;
    private static Activity activity;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {

anitaa1990

public class SingletonLeakExampleActivity extends AppCompatActivity {

    private SingletonSampleClass singletonSampleClass;
    
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
    /* 
     * Option 1: Do not pass activity context to the Singleton class. Instead pass application Context

anitaa1990

public class SingletonSampleClass {
  
    private Context context;
    private static SingletonSampleClass instance;
  
    private SingletonSampleClass(Context context) {
        this.context = context;
    }

anitaa1990

public class InnerClassReferenceLeakActivity extends AppCompatActivity {

  /* 
   * Mistake Number 1: 
   * Never create a static variable of an inner class
   * Fix I:
   * private LeakyClass leakyClass;
   */
  private static LeakyClass leakyClass;

anitaa1990

public class InnerClassReferenceLeakActivity extends AppCompatActivity {

  /* 
   * Mistake Number 1: 
   * Never create a static variable of an inner class
   * Fix I:
   */
  private LeakyClass leakyClass;

    @Override

anitaa1990

public class AnonymousClassReferenceLeakActivity extends AppCompatActivity {

    private TextView textView;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);

anitaa1990

public class AsyncTaskReferenceLeakActivity extends AppCompatActivity {

    private TextView textView;
    private BackgroundTask backgroundTask;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);

anitaa1990

public class AsyncTaskReferenceLeakActivity extends AppCompatActivity {

    private TextView textView;
    private BackgroundTask backgroundTask;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);