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我在這裏讀了許多問題,有關片段的標籤,並沒有在這裏描述的一切:https://developer.android.com/reference/android/support/v4/app/FragmentTabHost.html標籤的片段不露面
我沒有錯誤,應用程序不會崩潰或東西,但片段只是空的。 JobFragment類是隻有一個標籤的簡單片段,但不顯示。 這裏是我的Java代碼:
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTabHost;
import android.support.v4.view.ViewPager;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class AutoFragment extends Fragment{
private FragmentTabHost mTabHost;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
mTabHost = new FragmentTabHost(getActivity());
mTabHost.setup(getActivity(), getChildFragmentManager(), R.layout.fragment_auto);
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"),
JobFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("contacts").setIndicator("Contacts"),
JobFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("custom").setIndicator("Custom"),
JobFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("throttle").setIndicator("Throttle"),
JobFragment.class, null);
return mTabHost;
}
@Override
public void onDestroyView() {
super.onDestroyView();
mTabHost = null;
}
}
,這裏是我的佈局XML
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</FrameLayout>
</LinearLayout>
</android.support.v4.app.FragmentTabHost>
您可以發佈完整的佈局,並在MainActivity ? 我認爲你缺少的開始標籤。你也正確地編寫MainActivity類似於這裏描述的一個: https://maxalley.wordpress.com/2013/05/18/android-creating-a-tab-layout-with-fragmenttabhost-and-fragments/ – 10101010