我只想知道从一开始这是否可能。我根据从 Sai Geetha 阅读的教程创建了一个自定义 listView。好吧，它在我的应用程序上完美运行，只是它需要扩展 ListActivity 而不是 FragmentActivity。现在我很难为此配置和添加一个对话框，因为我需要应用一个片段对话框，并且我不能使用 getFragmentManager()，因为我没有使用 FragmentActivity。在不牺牲 ListActivity 的情况下，我还有其他方法可以解决这个问题吗？谢谢！
到目前为止，这是我的代码
XML:
对话列表视图
<?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">
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@id/android:list"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginBottom="5dp"
android:layout_marginTop="20dp"/>
</LinearLayout>
group_screen
<?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:background="@color/white">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="48dp"
android:background="@drawable/action_bar_separator"
android:id="@+id/relativeLayout">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Group Name"
android:id="@+id/txt_group_name"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:textColor="@color/dark_gray"
android:shadowColor="@color/dark_shadow"
android:shadowRadius="1"
android:shadowDy="1"/>
<Button
android:layout_width="32dp"
android:layout_height="32dp"
android:id="@+id/btn_back"
android:background="@drawable/btn_navigate_back"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"/>
<Button
android:layout_width="32dp"
android:layout_height="32dp"
android:id="@+id/btn_information"
android:background="@drawable/btn_information"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_marginTop="10dp"
android:layout_marginRight="10dp"/>
</RelativeLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Conversations"
android:id="@+id/textView2"
android:textColor="@color/holo_light_blue"
android:layout_marginLeft="15dp"
android:layout_marginTop="10dp"/>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="340dp"
>
<fragment
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:name="com.mark.exercise.ListViewFragment"
android:id="@+id/fragment"/>
</LinearLayout>
<Button
android:layout_width="match_parent"
android:layout_height="42dp"
android:text="Ask something"
android:id="@+id/btn_ask_question"
android:layout_marginRight="10dp"
android:layout_marginLeft="10dp"
android:textSize="15dp"/>
</LinearLayout>
</LinearLayout>
爪哇
package com.mark.exercise;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
/**
* Created by pc on 9/24/13.
*/
public class GroupActivity extends FragmentActivity {
Button information, back, new_topic;
ListView conversations;
TextView group_name;
String name, group_description, group_administrator,image_id;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.group_screen);
Intent intent = getIntent();
name = intent.getStringExtra("group_name");
group_description = intent.getStringExtra("group_description");
group_administrator = intent.getStringExtra("group_administrator");
image_id = intent.getStringExtra("image_id");
information = (Button)findViewById(R.id.btn_information);
back = (Button)findViewById(R.id.btn_back);
new_topic = (Button)findViewById(R.id.btn_ask_question);
group_name = (TextView)findViewById(R.id.txt_group_name);
group_name.setText(name);
information.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(GroupActivity.this, GroupInformationActivity.class);
intent.putExtra("group_name",name);
intent.putExtra("group_description",group_description);
intent.putExtra("group_administrator",group_administrator);
intent.putExtra("image_id",image_id);
startActivity(intent);
GroupActivity.this.overridePendingTransition(R.anim.in_from_left, R.anim.out_to_right);
}
});
new_topic.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
showCreateNewTopicDialog();
}
});
back.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
onBackPressed();
}
});
}
private void showCreateNewTopicDialog() {
FragmentManager fm = getSupportFragmentManager();
DialogFragmentCreateGroup createGroup = new DialogFragmentCreateGroup();
createGroup.show(fm, "create_group");
}
@Override
public void onBackPressed(){
super.onBackPressed();
overridePendingTransition(R.anim.in_from_right,R.anim.out_to_left);
}
}
列出片段
package com.mark.exercise;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Random;
/**
* Created by pc on 9/27/13.
*/
public class ListViewFragment extends ListFragment {
final ArrayList<HashMap<String,String>> list = new ArrayList<HashMap<String,String>>();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.conversations_list_view,
container, false);
setListView set_list = new setListView();
set_list.start();
return view;
}
public void onListItemClick(ListView l, View v, int position, long id) {
//super.onListItemClick(l, v, position, id);
Intent intent = new Intent(getActivity(), ConversationActivity.class);
startActivity(intent);
getActivity().overridePendingTransition(R.anim.in_from_left, R.anim.out_to_right);
}
private class setListView extends Thread {
public void run() {
getActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
setConversations();
}
});
}
}
private void setConversations(){
list.clear();
SimpleAdapter adapter = new SimpleAdapter(
getActivity(),
list,
R.layout.custom_list_main_conversations,
new String[] {"message","date", "reply_count", "stars_count"},
new int[] {R.id.txt_conversation_message,R.id.txt_topic_date, R.id.txt_no_of_reply, R.id.txt_no_of_stars}
);
for(int ctr=0;ctr<=5;ctr++){
Random randomGenerator = new Random();
HashMap<String,String> item_list = new HashMap<String,String>();
item_list.put("message", "This is the conversation number "+(ctr+1)+" and this topic is just a dummy data.");
item_list.put("date", "0"+(ctr+1)+"/0"+(ctr+2)+"/2013 "+(ctr+1)+":00:am");
item_list.put("reply_count", String.valueOf(ctr+randomGenerator.nextInt(10)));
item_list.put("stars_count", String.valueOf(ctr+randomGenerator.nextInt(10)));
list.add(item_list);
}
android.app.ListFragment lf = new android.app.ListFragment();
lf.setListAdapter(adapter);
}
}