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我試圖以編程方式向LinearLayout添加片段,但片段並未在整個佈局高度上伸展其內容。它的行爲像wrap_content而不是fill_parent。Android 3 - 添加片段到LinearLayout:fill_parent不起作用
另一方面,fill_parent在片段的寬度上工作。 我該如何改變這種行爲?
DashboardActivity:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<fragment
android:id="@+id/fragment_dashboard"
android:layout_width="5dp"
android:layout_height="fill_parent"
android:layout_marginLeft="20dp"
android:layout_weight="1"
android:name="de.upb.cs.ginkgo.tablet.ui.fragments.DashboardFragment" >
<!-- Preview: [email protected]/fragment_dashboard -->
</fragment>
<LinearLayout
android:id="@+id/rightfrag"
android:layout_width="450dp"
android:layout_height="fill_parent"
android:layout_weight="1"
android:layout_marginTop="10dp"
android:layout_marginBottom="15dp"
android:layout_marginRight="10dp" >
</LinearLayout>
</LinearLayout>
其onCreate方法:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dashboard);
//-- Instantiate Fragmentstuff
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
ActivitystreamFragment asf = new ActivitystreamFragment();
fragmentTransaction.add(R.id.rightfrag, asf);
fragmentTransaction.commit();
}
的ActivitystreamFragment XML:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1">
<ListView
android:id="@+id/android:list"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:drawSelectorOnTop="true"
android:background="@drawable/back_rightfrag"
>
</ListView>
</LinearLayout>
而其CreateView的:
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.fragment_activitystream, null);
return root;
}
謝謝。但我不知道爲什麼FrameLayout可以工作,但LinearLayout不是 –
您是否嘗試將FrameLayout *放入LinearLayout中? – zmbq
@NguyenMinhBinh:由於FrameLayout將子項放在彼此的頂部,另一方面,LinearLayout將其子項放在下一個(水平或垂直)彼此之間。過渡確實奏效,但新添加的片段不在顯示中。 – Kuno