I am keeping a model class NavItemData for populating the
navigation drawer and using a class SlidingPanelItemSelector that
extends StateListDrawable generates the appropriate selector for the
sliding panel icon.
在MVP架构中,我们有一个演示者类与模型进行通信,并生成视图的输入.在我的情况下,如果我使用演示者获取Sliding Panel的数据,我正在从演示者调用一个类,使用android上下文这是一个很好的方法,或者我们有任何替代解决方案严格遵循MVP架构？
Currently i am using a ViewBinderUtils class
and injected it directly to the activity class and gets the list of
data for Sliding Panel. Is it following Mvp Architcture?
SlidingPanelItemSelector.class
public class SlidingPanelItemSelector extends StateListDrawable {
private Context mContext;
public SlidingPanelItemSelector(Context mContext){
this.mContext = mContext;
}
public StateListDrawable getHomeSelector(){
StateListDrawable stateListDrawable = new StateListDrawable();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
stateListDrawable.addState(new int[]{android.R.attr.state_pressed},mContext.getDrawable(R.drawable.ic_nav_home_active));
stateListDrawable.addState(new int[]{},mContext.getDrawable(R.drawable.ic_nav_home));
}else{
stateListDrawable.addState(new int[]{android.R.attr.state_pressed},mContext.getResources().getDrawable(R.drawable.ic_nav_home_active));
stateListDrawable.addState(new int[]{},mContext.getResources().getDrawable(R.drawable.ic_nav_home));
}
return stateListDrawable;
}
}
ViewBinderUtils.class
public class ViewDataBinderUtils {
Context mContext;
@Inject
public ViewDataBinderUtils(@ActivityContext Context mContext) {
this.mContext = mContext;
}
public List<SlidingPanelData> getListData(String [] titles){
List<SlidingPanelData> items = new ArrayList<>();
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getHomeSelector(),titles[0],true));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getConfigurationSelector(),titles[1],false ));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getConfigurationSelector(),titles[2],false));
items.add(new SlidingPanelData(true));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getQuoteSelector(),titles[3],false));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getEquipmentInventorySelector(),titles[4],false));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getCustomerSelector(),titles[5],false));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getQuoterSelector(),titles[6],false));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getSalesProgramsSelector(),titles[7],false));
items.add(new SlidingPanelData( new SlidingPanelItemSelector(mContext).getCreditAppsSelector(),titles[8],false));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getRetailOffeRSSelector(),titles[9],false));
items.add(new SlidingPanelData(true));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getPayOffeRSSelector(),titles[10],true));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getAlertsSelector(),titles[11],true));
items.add(new SlidingPanelData(true));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getTermofUseSelector(),titles[12],false));
items.add(new SlidingPanelData(new SlidingPanelItemSelector(mContext).getLegalInfoSelector(),false));
return items;
}
}
解决方法
我不太了解这个课程的目标,但是在通用的方式你应该遵循这个逻辑
if am using the presenter for getting the data for Sliding Panel i am
calling a class from presenter that using android context
创建一个负责管理View(V)与Presenter(P)之间的通信的接口.
Communication.java
public interface Communication {
void showLoading();
void hideLoading();
void setSlidingData(String [] titles);
}
你的视图应该实现这个接口通信,并且有一个Presenter的参考.如果您需要使用Interactor(I)的上下文,则应该有一个管理此类的类(在我的情况下为RequestHolder).
View.java
public View implements Communication{
private Presenter mPresenter;
@Override
protected void onCreate(Bundle savedInstanceState) {
// your view already implements the Comunication interface
mPresenter = new Presenter(this);
}
(...)
private void getData(){
mPresenter.getData(new RequestHolder(getApplicationContext()));
}
@Override
public void setSlidingData(String [] titles){
List<SlidingPanelData> items = new ArrayList<>();
items.add(new SlidingPanelData(new SlidingPanelItemSelector(getApplicationContext()).getHomeSelector(),true));
}
}
在演示者有你的界面的参考
Presenter.java
private Communication mView;
public Presenter(Communication view) {
mView = view;
}
/** event to receive data from the model **/
public void onEvent(GetDataMessage event){
mView.setSlidingData(event.getData());
}
public void getData(final RequestHolder holder){
new GetDataInteractor(holder);
}
RequestHolder.java
// you can put the data important to the interactor
public RequestHolder(final Context context,int accountId) {
super(context);
}
//getters and setters
通过这种方式,您可以访问交互器中的上下文,而不需要混合概念
总共,
> View是唯一提供上下文的视图
>视图引用了Presenter
>演示者“与会者”与界面之间的视图
在具体情况下,为什么不创建需要在View部分中的上下文的列表,并填充List items = new ArrayList？();在你的主持人的一部分？与此你保持一切孤立
