安卓+具有自定义视图层次结构的 ListFragment

Question

我试图通过从 onCreateView(LayoutInflater, ViewGroup, Bundle) 返回我自己的视图层次结构来自定义片段布局。这会膨胀我的自定义视图，但似乎是堆叠视图而不是在内部膨胀，我可以立即看到所有内容。任何帮助表示赞赏。

MyActivity.java：

public class MyActivity extends FragmentActivity{
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        if (getSupportFragmentManager().findFragmentById(android.R.id.content) == null) {
            ArrayListFragment list = new ArrayListFragment();
            getSupportFragmentManager().beginTransaction().add(android.R.id.content, list).commit();
        }
    }

    public static class ArrayListFragment extends ListFragment {

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            inflater.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
            inflater.inflate(R.layout.main, container);
            return super.onCreateView(inflater, container, savedInstanceState);
        }

        @Override
        public void onActivityCreated(Bundle savedInstanceState) {
            super.onActivityCreated(savedInstanceState);
            String List[] = {"Larry", "Moe", "Curly"}; 
            setListAdapter(new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, List));
        }
    }
}

ma​​in.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:paddingLeft="8dp"
  android:paddingRight="8dp">

  <Button
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="THIS IS A BUTTON" />

  <ListView
    android:id="@android:id/list"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#00FF00"
    android:layout_weight="1"
    android:drawSelectorOnTop="false" />

  <TextView
    android:id="@android:id/empty"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FF0000"
    android:text="No data" />
</LinearLayout>

Answer 1

我没有在 ListFragment 类的 onCreateView 方法中返回新视图。例如：

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
            View view = inflater.inflate(R.layout.main, null);
            return view;
        }

现在在 Android 的土地上一切都运转良好！

Answer 2

我想你最好

 @Override
 public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle  savedInstanceState) {
 View root = inflater.inflate(R.layout.main, container, false);
 return root;
 }

Answer 3

优化方式和拍摄代码

 @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.list_alphabet, container, false);
    }

Answer 4

getSupportFragmentManager().beginTransaction().add(android.R.id.content, list).commit();

列表不被接受，它正在寻找片段。

Answer 5

使用这个模式，效果完美！

inflater.inflate(R.layout.list_layout, container, false);

public View inflate (XmlPullParser parser, ViewGroup root, boolean AttachToRoot)

AttachToRoot 膨胀的层次结构是否应附加到 root 参数？如果为 false，则 root 仅用于为 XML 中的根视图创建正确的 LayoutParams 子类。