在一个FragmentTabHost片段沟通 [英] Communicate with a fragment in a FragmentTabHost

问题描述

我想在FragmentTabHost片段通讯

I want to communicate with a fragment in a FragmentTabHost

通信Fragment->活动完成了！与接口

The communication Fragment->Activity is done! With an interface.

但我不能创造一个通信活动 - >片段，因为我创建的片段是这样的：

But I can't create a communication Activity->Fragment because I created the fragment like this:

mTabHost.addTab(
            mTabHost.newTabSpec("tab2").setIndicator("Affichage",
                    getResources().getDrawable(android.R.drawable.star_on)),
            MySelectionFragment.class, null);

MySelectionFragment是一类并不像是一个片段新MySelectionFragment（）

和我不知道如何与类通讯：/

And I dunno how to communicate with a class :/

在此先感谢！

推荐答案

诀窍是覆盖这样的onAttach方法：

The trick was to override the onAttach method like this:

@Override
public void onAttachFragment(android.support.v4.app.Fragment attachedFragment) {
    super.onAttachFragment(attachedFragment);

    if (attachedFragment.getClass().equals((ObjectA.class)) {
        mObjectA = (ObjectA)attachedFragment;
    }
    if (attachedFragment.getClass().equals((ObjectB.class)) {
        mObjectB = (ObjectB) attachedFragment;
    }
}

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