我有一个扩展Fragment的类。我想按下An Activity中的一个按钮，在对话框中打开此片段及其布局，此外片段在其位置正常打开。这可能吗？
这是我的片段（TipsFragment.java）
public class TipsFragment extends Fragment{
ListView list;
TipsAdapter tipsAdapter;
AlertDialog PageDialog;
DAO db;
Cursor c;
ArrayList<HashMap<String, String>> tipsList;
HashMap<String, String> map;
ArrayList<HashMap<String, String>> pages;
Integer tipType;
ImageButton page;
ImageButton add;
ImageButton search;
EditText inputAdd;
EditText inputSearch;
ImageView addImage;
RelativeLayout layoutAdd;
RelativeLayout layoutSearch;
int itemSelected;
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
db = new DAO(activity);
db.open();
}
public TipsFragment(){}
public TipsFragment(int tipType, int itemSelected ){
this.tipType = tipType;
this.itemSelected = itemSelected;
}
@Override
public View onCreateView(final LayoutInflater inflater, final ViewGroup container,
final Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.tips_fragement, container, false);
System.out.println("tipType: "+tipType);
System.out.println("itemSelected: "+itemSelected);
page = (ImageButton) rootView.findViewById(R.id.pager);
add = (ImageButton) rootView.findViewById(R.id.add);
search = (ImageButton) rootView.findViewById(R.id.search);
inputSearch = (EditText) rootView.findViewById(R.id.inputSearch);
inputAdd = (EditText) rootView.findViewById(R.id.inputAdd);
addImage = (ImageView) rootView.findViewById(R.id.imageAdd);
layoutAdd = (RelativeLayout) rootView.findViewById(R.id.layoutAdd);
layoutSearch = (RelativeLayout) rootView.findViewById(R.id.layoutSearch);
if (tipType != 0) {
switch (tipType) {
case 1:
System.out.println("All tips");
if (getActivity().getIntent().getStringExtra("startFrom") == null) {
c = db.getTips("0");
} else {
c = db.getTips(getActivity().getIntent().getStringExtra("startFrom"));
}
break;
case 2:
System.out.println("favorite tips");
c = db.getFavoriteTips();
page.setVisibility(View.GONE);
System.out.println("in favorite, count_records: "+c.getCount());
break;
}
}
System.out.println("count_records: "+c.getCount());
if (c.getCount() != 0) {
if (getActivity().getIntent().getStringExtra("startLabel") != null) {
page = (ImageButton) rootView.findViewById(R.id.pager);
}
tipsList = new ArrayList<HashMap<String, String>>();
list = (ListView) rootView.findViewById(R.id.tipList);
do {
map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(DAO.TIP_ID, c.getString(c.getColumnIndex(c.getColumnName(0))));
map.put(DAO.TIP_CONTENT, c.getString(c.getColumnIndex(c.getColumnName(1))));
// adding HashList to ArrayList
tipsList.add(map);
} while (c.moveToNext());
// Getting adapter by passing xml data ArrayList
tipsAdapter = new TipsAdapter(getActivity(), tipsList);
list.setAdapter(tipsAdapter);
// Click event for single list row
list.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
map = tipsList.get(position);
System.out.println("in list select item, tipType: "+tipType);
if (!MainActivity.tSlidingLayer.isOpened()) {
MainActivity.tSlidingLayer.openLayer(true);
}
}
});
page.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Strings to Show In Dialog with Radio Buttons
}
});
add.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
}
});
search.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
}
});
inputSearch.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
});
}
addImage.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(getActivity(), "addImage pressed", Toast.LENGTH_LONG).show();
}
});
return rootView;
}
}
这是布局tips_fragement.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="10dp"
android:layout_marginRight="5dp"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/titleBar"
android:layout_width="match_parent"
android:layout_height="50dp"
android:gravity="center"
android:orientation="horizontal" >
<ImageButton
android:id="@+id/add"
android:layout_width="45dp"
android:layout_height="35dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:scaleType="fitXY"
android:src="@drawable/add" />
<ImageButton
android:id="@+id/search"
android:layout_width="45dp"
android:layout_height="35dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:scaleType="fitXY"
android:src="@drawable/search" />
<ImageButton
android:id="@+id/pager"
android:layout_width="45dp"
android:layout_height="35dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:scaleType="fitXY"
android:src="@drawable/pager" />
</LinearLayout>
<View
android:layout_width="fill_parent"
android:layout_height="5dip"
android:background="@drawable/shadow" >
</View>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/layoutAdd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone" >
<EditText
android:id="@+id/inputAdd"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="Add" />
<ImageView
android:id="@+id/imageAdd"
android:padding="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/inputAdd"
android:layout_alignBottom="@+id/inputAdd"
android:layout_alignRight="@+id/inputAdd"
android:src="@android:drawable/ic_menu_add" />
</RelativeLayout>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/layoutSearch"
android:visibility="gone" >
<EditText
android:id="@+id/inputSearch"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="Search"/>
<ImageView
android:id="@+id/imageSearch"
android:padding="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/inputSearch"
android:layout_alignBottom="@+id/inputSearch"
android:layout_alignRight="@+id/inputSearch"
android:src="@android:drawable/ic_menu_search" />
</RelativeLayout>
<ListView
android:id="@+id/tipList"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/buttons"
android:divider="#351802"
android:dividerHeight="2dp"
android:listSelector="@drawable/list_selector" />
</LinearLayout>
答案 0 :(得分：1)
由于Android支持nesting Fragments（在支持库中提供），因此您可以将TipsFragment显示为另一个DialogFragment的内容。尽可能避免使用此解决方案。
更好的解决方案是TipsFragment扩展DialogFragment，这样您就可以在内联或对话框中显示Fragment。
1 - 使TipsFragment延长DialogFragment
public class TipsFragment extends DialogFragment {...}
2 - 在按钮上点击使用FragmentTransaction.add或FragmentTransaction.replace以显示DialogFragment内嵌或将其包含在您的布局中并更改其可见性。
3 - 将TipsFragment显示为对话框
TipsFragment fr = new TipsFragment();
fr.show(getSupportFragmentManager(), "dialog_fragment_tag");
指南：Performing Fragment Transactions。 SDK samples
ApiDemos应用程序中提供了更多样本