RainbowMVP


Source link: https://github.com/Ne1c/RainbowMVP

RainbowMVP

Lightweight MVP library(for personal using) with easy lifecycle.

For good understanding approach read this article.

  • Really lighweight library
  • Easy integrate to project
  • Minimum actions to implement MVP
  • Doesn't destroy presenter after rotation device
  • You can cached data in presenter for restore data after rotate device

In presenter you have 3 methods:

  • bindView(V view) - you need call this method for attach your view to presenter.
  • unbindView() - you need call this method when view not available already.
  • onDestoy() - call, when your presenter will destroy.

Important thing: You can bind your view to presenter ONLY after onStart() in Activity, and after onResume() in Fragment.

#Dependency

Step 1. Add it in your root build.gradle at the end of repositories:

allprojects {
  repositories {

...
maven {
 url "https://jitpack.io" 
}
  
}
 
}

Step 2. Add the dependency

dependencies {

  compile 'com.github.ne1c:rainbowmvp:1.2.2'  
}
 
}

Step 1

Create you View interface:

public interface MyView {

  void showResult(String text);

 void showError(@StringRes int resId);
 
}

Step 2

Create presenter. You need inherit of BasePresenter and add tag:

public class MyPresenter extends BasePresenter<MyView> {

  public static final TAG = MyPresenter.class.getName();

  ...
  public void makeParty() {

// some actions

boolean success = ...

if (success) {

 getView().showResult(...);

}
 else {

 getView().showError(R.string.error);

}

  
}

  ... 
}

Step 3

  • Implement PresenterStorage:
public class MyPresenterStorage implements PresenterStorage {

  public MyPresenterStorage(...) {

...
  
}

@Override
  public BasePresenter create(String tag) {

if (tag.equals(MyPresenter.TAG)) {

 return new MyPresenter(...);

}

 return null;
  
}
 
}

Step 4

  • Init PresenterFactory, before use any presenter. You can do it in onCreate() of Applicaton or splash screen:
public class MyApplication extends android.app.Application {

  @Override
  public void onCreate() {

...

PresenterFactory.init(new MyPresenterStorage(...));

  
}
 
}

Step 5

Your activity or fragment need to inherit of BaseActivity/BaseFragment and override getPresenterTag():

public class MyActivity extends BaseActivity<MyPresenter> implements MyView {

  ...
  @Ovveride
  public void onStart() {

super.onStart();

getPresenter().bindView(this);

  
}

 @Ovveride
  public void onStop() {

super.onStop();

getPresenter().unbindView();

  
}

 @Override
  public String getPresenterTag() {

return MyPresenter.TAG;
  
}

  ... 
}

ViewState

You can use ViewState for saving state of view, and than restore after bindView(...). For it action you need implement ViewStateListener in your presenter or another place. Method stateChanged(...) will call after every change of ViewState or after call method bindView(...). Example how it works:

public class MyPresenter extends BasePresenter<MyView> implements ViewStateListener {

  public MyPresenter(...) {

...

addViewStateListener(this);

  
}

  ...
  public void makeParty() {

setViewState(ViewState.IN_PROGRESS);

getApi().loadData(response -> {

  if (response.isSuccess()) {

setViewState(ViewState.SUCCESS);

if (getView() != null) {

 getView().showResult(response.getData());

}

  
}
 else if (response.isError()) {

setViewState(ViewState.ERROR);

if (getView() != null) {

 getView().showErrorLoadData();

}

  
}

 
}
);

  
}

 @Override
  public void stateChanged(ViewState state) {

if (state == ViewState.IN_PROGRESS) {

 getView().showProgress();

}

 if (state == ViewState.SUCCESS) {

 getView().showRepos(mCachedData);

 getView().hideProgress();

}

if (state == ViewState.ERROR) {

 getView().showErrorLoadData()

}

setViewState(ViewState.NOTHING);

  
}

  ... 
}

License

Copyright 2016 Nikolay Kucheriaviy 

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Resources

Facebook-like "Like with Reaction" demo for Android

Android Bottom Dialog library.

Awesome Library for VideoCompression Compressing 25Mb videofile to 1Mb

This library provides an easy to use API for switching between fragments that share the same container. Implementing tabs, such as the ones Instagram has at the bottom of the layout, is a much simpler goal to achieve when using TabController.

Tabs can be switched by using either show/hide or attach/detach. You can even provide your own implementation of the way tabs are being shown.

WCViewPagerIndicators It is an android library that allows developers to have a viewpager with the attribute layoutheight = "wrapcontent", in addition to include in the bottom a page indicator (API 16 or higher)

Google Primer Intro Animation.

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