Question

我已经为我的mvp4g项目实现了历史记录机制。当我遍历页面时，我可以看到网址也发生了变化。但是在重新加载主页以外的任何页面时，总是会显示主页而不是所需的页面？

这是我的实施：

    @History(type = HistoryConverterType.SIMPLE)
public class CustomHistoryConverter implements HistoryConverter<AppEventBus> {

    private CustomEventBus eventBus;

    @Override
    public void convertFromToken(String historyName, String param, CustomEventBus eventBus) {
        this.eventBus = eventBus;
        eventBus.dispatch(historyName, param);
    }

    public String convertToToken(String eventName, String name) {
        return name;
    }

    public String convertToToken(String eventName) {
        return eventName;
    }

    public String convertToToken(String eventName, String name, String type) {
        return name;
    }

    public boolean isCrawlable() {
        return false;
    }
}

和事件总线相关的代码：

    @Events(startPresenter=PageOnePresenter.class,historyOnStart=true)
public interface CustomEventBus extends EventBusWithLookup {

    @Start
    @Event(handlers = PageOnePresenter.class)
    void start();

    @InitHistory
    @Event(handlers = PageOnePresenter.class)
    void init();

    @Event(handlers = PageTwoPresenter.class, name = "page2", historyConverter = CustomHistoryConverter.class)
    void getPageTwo();

    @Event(handlers = PageThreePresenter.class, name = "page3", historyConverter=CustomHistoryConverter.class)
    void getPageThree();

    @Event(handlers=PageOnePresenter.class, name = "page1", historyConverter=CustomHistoryConverter.class)
    void getPageOne();

    @Event(handlers=PageOnePresenter.class)
    void setPageTwo(HistoryPageTwoView view);

    @Event(handlers=PageOnePresenter.class)
    void setPageThree(HistoryPageThreeView view);
 }

Answer 1

HistoryConverter需要改进。

事实上，事件没有参数，你应该返回一个空字符串。更新看起来像这样的HistoryConverter：

@History(type = HistoryConverterType.SIMPLE)
public class CustomHistoryConverter implements HistoryConverter<AppEventBus> {

    private CustomEventBus eventBus;

    @Override
    public void convertFromToken(String historyName, String param, CustomEventBus eventBus) {
        this.eventBus = eventBus;
        // TODO handle the param in cases where you have more than one parameter
        eventBus.dispatch(historyName, param);
    }

    public String convertToToken(String eventName, String name) {
        return name;
    }

    public String convertToToken(String eventName) {
        return "";
    }

    public String convertToToken(String eventName, String name, String type) {
        return name - "-!-" type;
    }

    public boolean isCrawlable() {
        return false;
    }
}

希望有所帮助。

在重新加载页面时，mvp4g历史记录机制失败

1 个答案: