Question

我试图将Mainactivity作为视图传递给演示者

(In MainActivity)    
mainPresenter = new MainPresenter(this);

(Presenter cont)
public MainPresenter(View view) {
      this.view = view;
      user  = new User();
   }

但是，这个抛出错误是无效的铸造之类的东西。我错过了什么吗？

该代码来自here

Answer 1

你应该有类似的东西：

public interface YourView {
    void doSomething();
}

public MainActivity extends Activity implements YourView {

mainPresenter = new MainPresenter(this);

}

public MainPresenter(YourView view) {
      this.view = view;
      view.doSomething();
   }

android Mvp模式传递上下文作为视图

1 个答案: