matthew-carroll

public class MyView extends View {
    private static class SavedState extends BaseSavedState {
        String name;
        int index;

        SavedState(Parcelable superState) {
            super(superState);
        }

        private SavedState(Parcel in) {

matthew-carroll

public class MyView extends View {
    private static class SavedState extends BaseSavedState {
        // TODO:
    }
}

matthew-carroll

public class MyView extends View {
  public MyView(Context context) {
    setSaveEnabled(true);
  }
}

matthew-carroll

public class SomeActivity extends Activity {
 @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.some_layout);
    
    MyView myView = new MyView(this);
    myView.setId(R.id.desired_id);
    addView(myView);

matthew-carroll

<MyView
  android:id="@+id/desired_id"
  ...
  />

matthew-carroll

@Override
protected void dispatchSaveInstanceState(SparseArray<Parcelable> container) {
    // Create a SparseArray just for us!
    SparseArray mySparseArray = new SparseArray(mChildrenCount + 1); // +1 for our ViewGroup's state.
    
    // Repeat the normal logic for this method, but pass our "mySparseArray" instead of "container"
    super.dispatchSaveInstanceState(mySparseArray);
    final int count = mChildrenCount;
    final View[] children = mChildren;
    for (int i = 0; i < count; i++) {

matthew-carroll

@Override
protected void dispatchSaveInstanceState(SparseArray<Parcelable> container) {
    super.dispatchSaveInstanceState(container);
    final int count = mChildrenCount;
    final View[] children = mChildren;
    for (int i = 0; i < count; i++) {
        View c = children[i];
        if ((c.mViewFlags & PARENT_SAVE_DISABLED_MASK) != PARENT_SAVE_DISABLED) {
            c.dispatchSaveInstanceState(container);
        }

matthew-carroll

// This example assumes that the developer is using the new Android embedding
// API, some plugins that use dart-side initialization, and some old plugins
// that have no concept of dart-side initialization.
//
// This example would be the same even if all used plugins were old (no dart-side
// initialization).
public class MainActivity extends FlutterActivity {
  @Override
  protected void onFlutterEngineCreated(@NonNull FlutterEngine engine) {
    // We register the GeneratedPluginLoader for the plugins that use

matthew-carroll

// This example assumes that the developer is using the new Android embedding
// API, as well as plugins that have opted-in to the proposed dart-side
// plugin initialization.
public class MainActivity extends FlutterActivity {
  @Override
  protected void onFlutterEngineCreated(@NonNull FlutterEngine engine) {
    engine.setPluginLoader(new GeneratedPluginLoader());
  }
}

matthew-carroll

MaterialApp(
  theme: ThemeData(
    brightness: Brightness.light,
    primaryColor: Colors.red,
  ),
  darkTheme: ThemeData(
    brightness: Brightness.dark,
  ),
);