在Android 4.0的困境标签 [英] Tabs on android 4.0 woes

问题描述

我想在Android 2.2使用标签 - 4.0。我已经扩展<一个href=\"http://developer.android.com/resources/samples/Support4Demos/src/com/example/android/supportv4/app/FragmentTabs.html\"相对=nofollow>这个演示：<一href=\"http://developer.android.com/resources/samples/Support4Demos/src/com/example/android/supportv4/app/FragmentTabs.html\" rel=\"nofollow\">http://developer.android.com/resources/samples/Support4Demos/src/com/example/android/supportv4/app/FragmentTabs.html搭配：

I'm trying to use tabs on android 2.2 - 4.0. I've extended this demo: http://developer.android.com/resources/samples/Support4Demos/src/com/example/android/supportv4/app/FragmentTabs.html with:

TabSpec ts = mTabHost.newTabSpec("randomTab");
Intent intent = new Intent();
intent.setClass(this, FragActiv.class);
ts.setContent(intent);
ts.setIndicator("randomTab");
mTabManager.addTab(ts, FragActiv.class, new Bundle());

但我不知道该怎么添加的 onTabChanged 的，所有的魔法发生在演示。

But I don't know what to add to onTabChanged, where all the magic happens in the demo.

的我需要做的是：的结果
我有一个 ListFragment 并单击某个项目时，应显示在的小屏幕/纵向在单独的屏幕细节的或，在的大屏幕/横向的，显示与在同一画面上的细节片段。我可以解决此片段用或者我应该尝试 FragmentActivities 正常工作？

What I need to do is:
I have a ListFragment and when an item is clicked, it should display details in a separate screen on a small screen/portrait orientation or, on a large screen/landscape orientation, display a fragment with the details on the same screen. Can I work around this with Fragments or should I try to get FragmentActivities working properly?

通过遵循这个例子：<一href=\"http://developer.android.com/resources/samples/Support4Demos/src/com/example/android/supportv4/app/FragmentLayoutSupport.html\"相对=nofollow>例如，我能够实例化的 FragmentActivity 的，但它占用了整个屏幕，而不仅仅是选项卡菜单中。

By following this example: example, I was able to instantiate a FragmentActivity, but it takes up the whole screen, rather than just the area under the tab menu.

是否有任何机会的使用活动（或FragmentActivities），而不是片段，标签内容

推荐答案

有没有必要做我想要的东西（使用TabActivity作为标签内容）的。我已经通过有我tabContent内的两个集装箱，一个用于ListView的片段，一个用于细节片段解决了这个问题。这是我现在的布局：

There was no need of doing what I wanted (using a TabActivity as content of a tab). I've solved the problem by having two containers inside my tabContent, one for the ListView fragment and one for the details fragment. Here is my layout now:

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <HorizontalScrollView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:fillViewport="true"
        android:scrollbars="vertical" >

        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal" />
    </HorizontalScrollView>

    <FrameLayout
        android:id="@android:id/tabcontent"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_weight="0" />

    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:baselineAligned="false"
        android:fadingEdge="none" >

        <FrameLayout
            android:id="@+android:id/realtabcontent"
            android:layout_width="0px"
            android:layout_height="fill_parent"
            android:layout_weight="1" />

        <FrameLayout
            android:id="@+android:id/details_container"
            android:layout_width="0px"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:visibility="gone" />
    </LinearLayout>
</LinearLayout>

首先， details_container 已经一去不复返了。您可以用它如下：

Initially, details_container is GONE. You can use it as following:

        ft.replace(R.id.details_container, detailsFragment);
        FrameLayout detailsLayout = (FrameLayout) mActivity.findViewById(R.id.details_container);
        detailsLayout.setVisibility(View.VISIBLE);

这篇关于在Android 4.0的困境标签的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！