This library allows you to save any primitive, Serializable or Parcelable type objects.
compile 'com.azoft.injector:injector:0.9.3'
To work with this library you should:
- Create
Injectorinstance with Injector.init call; - Call
injector.applyRestoreInstanceState(Bundle)with null or bundle object from your Activity or Fragment instance; - Call
injector.applyOnSaveInstanceState()with bundle object from your Activity or Fragment instance;
Basicly you should create base class, do steps above and Injector will work with any subclass of this base class.
public class DataActivity extends BaseActivity {
@InjectSavedState
private Double mValue;
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (null == mValue) {
mValue = // do init here
}
performValueWork(mValue);
}
}
public class BaseActivity extends Activity {
private final Injector mInjector = Injector.init(getClass());
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mInjector.applyRestoreInstanceState(this, savedInstanceState);
}
@Override
protected void onSaveInstanceState(final Bundle outState) {
super.onSaveInstanceState(outState);
mInjector.applyOnSaveInstanceState(this, outState);
}
}
public class BaseFragment extends Fragment {
private final Injector mInjector = Injector.init(getClass());
@Override
public void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mInjector.applyRestoreInstanceState(this, savedInstanceState);
}
@Override
public void onSaveInstanceState(final Bundle outState) {
super.onSaveInstanceState(outState);
mInjector.applyOnSaveInstanceState(this, outState);
}
}
public class BaseCustomView extends View {
private final Injector mInjector = Injector.init(getClass());
@Override
protected void onRestoreInstanceState(final Parcelable state) {
if (state instanceof InjectorViewSaveState) {
final InjectorViewSaveState injectorViewSaveState = (InjectorViewSaveState) state;
mInjector.applyRestoreInstanceState(this, injectorViewSaveState.getOurSaveState());
super.onRestoreInstanceState(injectorViewSaveState.getSuperState());
} else {
super.onRestoreInstanceState(state);
}
}
@Override
protected Parcelable onSaveInstanceState() {
return new InjectorViewSaveState(mInjector, this, super.onSaveInstanceState());
}
}
public class AnyObject {
private final Injector mInjector = Injector.init(getClass());
public final void onRestoreInstanceState(final Bundle state) {
mInjector.applyRestoreInstanceState(this, state);
}
public final void onSaveInstanceState(final Bundle outState) {
mInjector.applyOnSaveInstanceState(this, outState);
}
}
Custom tag for Bundle can be generated by implementing InjectSaveStateTag. It is usefull for multiply instances of the same ViewModels or Views that can be instantiated on the screen.
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