androidx.recyclerview.widget.RecyclerView.AdapterDataObserver Java Examples

The following examples show how to use androidx.recyclerview.widget.RecyclerView.AdapterDataObserver. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: EpoxyControllerTest.java    From epoxy with Apache License 2.0 6 votes vote down vote up 
@Test
public void basicBuildModels() {
  AdapterDataObserver observer = mock(AdapterDataObserver.class);
  EpoxyController controller = new EpoxyController() {

    @Override
    protected void buildModels() {
      new TestModel()
          .addTo(this);
    }

    @Override
    protected void onExceptionSwallowed(RuntimeException exception) {
      noExceptionsDuringBasicBuildModels = false;
    }
  };

  controller.getAdapter().registerAdapterDataObserver(observer);
  controller.requestModelBuild();

  assertTrue(noExceptionsDuringBasicBuildModels);
  assertEquals(1, controller.getAdapter().getItemCount());
  verify(observer).onItemRangeInserted(0, 1);
  verifyNoMoreInteractions(observer);
}
Example #2
Source File: DiffPayloadTest.java    From epoxy with Apache License 2.0 6 votes vote down vote up 
@Before
public void before() {
  adapter = new BaseEpoxyAdapter() {

    @Override
    List<EpoxyModel<?>> getCurrentModels() {
      return models;
    }
  };

  observer = spy(new AdapterDataObserver() {
    @Override
    public void onItemRangeChanged(int positionStart, int itemCount, Object payload) {

    }
  });

  adapter.registerAdapterDataObserver(observer);
}
Example #3
Source File: DataBindingModelIntegrationTest.java    From epoxy with Apache License 2.0 6 votes vote down vote up 
@Test
public void typesWithHashCodeAreDiffed() {
  SimpleEpoxyController controller = new SimpleEpoxyController();
  AdapterDataObserver observerMock = mock(AdapterDataObserver.class);
  controller.getAdapter().registerAdapterDataObserver(observerMock);

  ModelWithDataBindingBindingModel_ firstModel = new ModelWithDataBindingBindingModel_()
      .stringValue("value1")
      .id(1);

  controller.setModels(Collections.singletonList(firstModel));
  verify(observerMock).onItemRangeInserted(0, 1);

  ModelWithDataBindingBindingModel_ secondModel = new ModelWithDataBindingBindingModel_()
      .stringValue("value2")
      .id(1);

  controller.setModels(Collections.singletonList(secondModel));
  verify(observerMock).onItemRangeChanged(eq(0), eq(1), any());
  verifyNoMoreInteractions(observerMock);
}
Example #4
Source File: OnModelBindListenerTest.java    From epoxy with Apache License 2.0 6 votes vote down vote up 
@Test
public void nullBindListenerChangesHashCode() {
  TestController controller = new TestController();

  AdapterDataObserver observerMock = mock(AdapterDataObserver.class);
  controller.getAdapter().registerAdapterDataObserver(observerMock);

  ModelWithClickListener_ model = new ModelWithClickListener_();
  controller.buildWithModel(model);
  verify(observerMock).onItemRangeInserted(eq(0), eq(1));

  model = new ModelWithClickListener_();
  model.onBind(new BindListener());
  controller.buildWithModel(model);

  model = new ModelWithClickListener_();
  model.onBind(null);
  controller.buildWithModel(model);

  verify(observerMock, times(2)).onItemRangeChanged(eq(0), eq(1), any());
}
Example #5
Source File: OnModelBindListenerTest.java    From epoxy with Apache License 2.0 6 votes vote down vote up 
@Test
public void newBindListenerDoesNotChangeHashCode() {
  TestController controller = new TestController();

  AdapterDataObserver observerMock = mock(AdapterDataObserver.class);
  controller.getAdapter().registerAdapterDataObserver(observerMock);

  ModelWithClickListener_ model = new ModelWithClickListener_();
  controller.buildWithModel(model);
  verify(observerMock).onItemRangeInserted(eq(0), eq(1));

  model = new ModelWithClickListener_();
  model.onBind(new BindListener());
  controller.buildWithModel(model);

  model = new ModelWithClickListener_();
  model.onBind(new BindListener());
  controller.buildWithModel(model);

  verify(observerMock).onItemRangeChanged(eq(0), eq(1), any());
}
Example #6
Source File: OnModelBindListenerTest.java    From epoxy with Apache License 2.0 6 votes vote down vote up 
@Test
public void nullUnbindListenerChangesHashCode() {
  TestController controller = new TestController();

  AdapterDataObserver observerMock = mock(AdapterDataObserver.class);
  controller.getAdapter().registerAdapterDataObserver(observerMock);

  ModelWithClickListener_ model = new ModelWithClickListener_();
  controller.buildWithModel(model);
  verify(observerMock).onItemRangeInserted(eq(0), eq(1));

  model = new ModelWithClickListener_();
  model.onUnbind(new UnbindListener());
  controller.buildWithModel(model);

  model = new ModelWithClickListener_();
  model.onUnbind(null);
  controller.buildWithModel(model);

  verify(observerMock, times(2)).onItemRangeChanged(eq(0), eq(1), any());
}
Example #7
Source File: OnModelBindListenerTest.java    From epoxy with Apache License 2.0 6 votes vote down vote up 
@Test
public void newUnbindListenerDoesNotChangHashCode() {
  TestController controller = new TestController();

  AdapterDataObserver observerMock = mock(AdapterDataObserver.class);
  controller.getAdapter().registerAdapterDataObserver(observerMock);

  ModelWithClickListener_ model = new ModelWithClickListener_();
  controller.buildWithModel(model);
  verify(observerMock).onItemRangeInserted(eq(0), eq(1));

  model = new ModelWithClickListener_();
  model.onUnbind(new UnbindListener());
  controller.buildWithModel(model);

  model = new ModelWithClickListener_();
  model.onUnbind(new UnbindListener());
  controller.buildWithModel(model);

  verify(observerMock).onItemRangeChanged(eq(0), eq(1), any());
}
Example #8
Source File: EpoxyControllerTest.java    From epoxy with Apache License 2.0 5 votes vote down vote up 
@Test
public void moveModel() {
  AdapterDataObserver observer = mock(AdapterDataObserver.class);
  final List<TestModel> testModels = new ArrayList<>();
  testModels.add(new TestModel(1));
  testModels.add(new TestModel(2));
  testModels.add(new TestModel(3));

  EpoxyController controller = new EpoxyController() {

    @Override
    protected void buildModels() {
      add(testModels);
    }
  };

  EpoxyControllerAdapter adapter = controller.getAdapter();
  adapter.registerAdapterDataObserver(observer);
  controller.requestModelBuild();

  verify(observer).onItemRangeInserted(0, 3);

  testModels.add(0, testModels.remove(1));

  controller.moveModel(1, 0);
  verify(observer).onItemRangeMoved(1, 0, 1);

  assertEquals(testModels, adapter.getCurrentModels());

  controller.requestModelBuild();
  assertEquals(testModels, adapter.getCurrentModels());
  verifyNoMoreInteractions(observer);
}
Example #9
Source File: EpoxyControllerTest.java    From epoxy with Apache License 2.0 5 votes vote down vote up 
@Test
public void moveModelOtherWay() {
  AdapterDataObserver observer = mock(AdapterDataObserver.class);
  final List<TestModel> testModels = new ArrayList<>();
  testModels.add(new TestModel(1));
  testModels.add(new TestModel(2));
  testModels.add(new TestModel(3));

  EpoxyController controller = new EpoxyController() {

    @Override
    protected void buildModels() {
      add(testModels);
    }
  };

  EpoxyControllerAdapter adapter = controller.getAdapter();
  adapter.registerAdapterDataObserver(observer);
  controller.requestModelBuild();

  verify(observer).onItemRangeInserted(0, 3);

  testModels.add(2, testModels.remove(1));

  controller.moveModel(1, 2);
  verify(observer).onItemRangeMoved(1, 2, 1);

  assertEquals(testModels, adapter.getCurrentModels());

  controller.requestModelBuild();
  assertEquals(testModels, adapter.getCurrentModels());
  verifyNoMoreInteractions(observer);
}
Example #10
Source File: EpoxyControllerTest.java    From epoxy with Apache License 2.0 5 votes vote down vote up 
@Test
public void multipleMoves() {
  AdapterDataObserver observer = mock(AdapterDataObserver.class);
  final List<TestModel> testModels = new ArrayList<>();
  testModels.add(new TestModel(1));
  testModels.add(new TestModel(2));
  testModels.add(new TestModel(3));

  EpoxyController controller = new EpoxyController() {

    @Override
    protected void buildModels() {
      add(testModels);
    }
  };

  EpoxyControllerAdapter adapter = controller.getAdapter();
  adapter.registerAdapterDataObserver(observer);
  controller.requestModelBuild();

  testModels.add(0, testModels.remove(1));
  controller.moveModel(1, 0);
  verify(observer).onItemRangeMoved(1, 0, 1);

  testModels.add(2, testModels.remove(1));
  controller.moveModel(1, 2);
  verify(observer).onItemRangeMoved(1, 2, 1);

  assertEquals(testModels, adapter.getCurrentModels());
  controller.requestModelBuild();
  assertEquals(testModels, adapter.getCurrentModels());
}
Example #11
Source File: OnModelBindListenerTest.java    From epoxy with Apache License 2.0 5 votes vote down vote up 
@Test
public void bindListenerChangesHashCode() {
  TestController controller = new TestController();

  AdapterDataObserver observerMock = mock(AdapterDataObserver.class);
  controller.getAdapter().registerAdapterDataObserver(observerMock);

  ModelWithClickListener_ model = new ModelWithClickListener_();
  controller.buildWithModel(model);
  verify(observerMock).onItemRangeInserted(eq(0), eq(1));

  // shouldn't change
  model = new ModelWithClickListener_();
  model.onBind(null);
  controller.buildWithModel(model);
  verify(observerMock, never()).onItemRangeChanged(eq(0), eq(1), any());

  model = new ModelWithClickListener_();
  BindListener listener1 = new BindListener();
  model.onBind(listener1);
  controller.buildWithModel(model);
  verify(observerMock, times(1)).onItemRangeChanged(eq(0), eq(1), any());

  model = new ModelWithClickListener_();
  model.onBind(listener1);
  controller.buildWithModel(model);
  verify(observerMock, times(1)).onItemRangeChanged(eq(0), eq(1), any());
}
Example #12
Source File: OnModelBindListenerTest.java    From epoxy with Apache License 2.0 5 votes vote down vote up 
@Test
public void unbindListenerChangesHashCode() {
  TestController controller = new TestController();

  AdapterDataObserver observerMock = mock(AdapterDataObserver.class);
  controller.getAdapter().registerAdapterDataObserver(observerMock);

  ModelWithClickListener_ model = new ModelWithClickListener_();
  controller.buildWithModel(model);
  verify(observerMock).onItemRangeInserted(eq(0), eq(1));

  // shouldn't change
  model = new ModelWithClickListener_();
  model.onUnbind(null);
  controller.buildWithModel(model);
  verify(observerMock, never()).onItemRangeChanged(eq(0), eq(1), any());

  model = new ModelWithClickListener_();
  UnbindListener listener1 = new UnbindListener();
  model.onUnbind(listener1);
  controller.buildWithModel(model);
  verify(observerMock, times(1)).onItemRangeChanged(eq(0), eq(1), any());

  model = new ModelWithClickListener_();
  model.onUnbind(listener1);
  controller.buildWithModel(model);
  verify(observerMock, times(1)).onItemRangeChanged(eq(0), eq(1), any());
}
Example #13
Source File: ModelClickListenerTest.java    From epoxy with Apache License 2.0 5 votes vote down vote up 
@Test
public void modelClickListenerIsDiffed() {
  // Internally we wrap the model click listener with an anonymous click listener. We can't hash
  // the anonymous click listener since that changes the model state, instead our anonymous
  // click listener should use the hashCode of the user's click listener

  ModelClickListener modelClickListener = new ModelClickListener();
  ViewClickListener viewClickListener = new ViewClickListener();

  TestController controller = new TestController();

  AdapterDataObserver observerMock = mock(AdapterDataObserver.class);
  controller.getAdapter().registerAdapterDataObserver(observerMock);

  ModelWithClickListener_ model = new ModelWithClickListener_();
  controller.setModel(model);
  controller.requestModelBuild();
  verify(observerMock).onItemRangeInserted(eq(0), eq(1));

  model = new ModelWithClickListener_();
  model.clickListener(modelClickListener);
  controller.setModel(model);
  lifecycleHelper.buildModelsAndBind(controller);

  // The second update shouldn't cause a item change
  model = new ModelWithClickListener_();
  model.clickListener(modelClickListener);
  controller.setModel(model);
  lifecycleHelper.buildModelsAndBind(controller);

  model = new ModelWithClickListener_();
  model.clickListener(viewClickListener);
  controller.setModel(model);
  lifecycleHelper.buildModelsAndBind(controller);

  verify(observerMock, times(2)).onItemRangeChanged(eq(0), eq(1), any());
  verifyNoMoreInteractions(observerMock);
}
Example #14
Source File: ModelClickListenerTest.java    From epoxy with Apache License 2.0 5 votes vote down vote up 
@Test
public void viewClickListenerIsDiffed() {
  TestController controller = new TestController();

  AdapterDataObserver observerMock = mock(AdapterDataObserver.class);
  controller.getAdapter().registerAdapterDataObserver(observerMock);

  ModelWithClickListener_ model = new ModelWithClickListener_();
  controller.setModel(model);
  controller.requestModelBuild();
  verify(observerMock).onItemRangeInserted(eq(0), eq(1));

  ViewClickListener viewClickListener = new ViewClickListener();
  model = new ModelWithClickListener_();
  model.clickListener(viewClickListener);
  controller.setModel(model);
  controller.requestModelBuild();

  // The second update shouldn't cause a item change
  model = new ModelWithClickListener_();
  model.clickListener(viewClickListener);
  controller.setModel(model);
  controller.requestModelBuild();

  ModelClickListener modelClickListener = new ModelClickListener();
  model = new ModelWithClickListener_();
  model.clickListener(modelClickListener);
  controller.setModel(model);
  controller.requestModelBuild();

  verify(observerMock, times(2)).onItemRangeChanged(eq(0), eq(1), any());
  verifyNoMoreInteractions(observerMock);
}
Example #15
Source File: RecyclerConverterAdapter.java    From power-adapters with Apache License 2.0 4 votes vote down vote up 
@Override
public final void unregisterAdapterDataObserver(RecyclerView.AdapterDataObserver observer) {
    super.unregisterAdapterDataObserver(observer);
    mAdapterDataObservers.remove(observer);
    updateObserver();
}
Example #16
Source File: SelectionTracker.java    From FairEmail with GNU General Public License v3.0 4 votes vote down vote up 
/** @hide */
@RestrictTo(LIBRARY)
protected abstract @NonNull AdapterDataObserver getAdapterDataObserver();
Example #17
Source File: RecyclerConverterAdapter.java    From power-adapters with Apache License 2.0 4 votes vote down vote up 
@Override
public final void registerAdapterDataObserver(RecyclerView.AdapterDataObserver observer) {
    super.registerAdapterDataObserver(observer);
    mAdapterDataObservers.add(observer);
    updateObserver();
}
Example #18
Source File: DefaultSelectionTracker.java    From FairEmail with GNU General Public License v3.0 4 votes vote down vote up 
@Override
protected @NonNull AdapterDataObserver getAdapterDataObserver() {
    return mAdapterObserver;
}