嗨,我正在学习 android listview,有人可以提供有关如何将 CustomAdapter 设置为 fragment Activity 的想法吗?
下面是 fragment 的简单 ListView 。对于 Fragment Activity 中的 customListview 而不是其他如何进行...
public class CallFragment extends Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_top_rated,
container, false);
ListView listview = (ListView) rootView.findViewById(R.id.listView1);
String[] items = new String[] { "Item 1", "Item 2", "Item 3" };
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_list_item_1, items);
listview.setAdapter(adapter);
return rootView;
}
}
最佳答案
请检查以下链接以在 android 中创建自定义 ListView 。
已编辑:为 fragment 添加了简单示例。在这里,我已将调用数据添加到自定义适配器。
这是 fragment 类:
import java.util.ArrayList;
import java.util.HashMap;
import adapter.CustomCallLogListAdapter;
import android.annotation.SuppressLint;
import android.content.CursorLoader;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.CallLog;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import com.broadcast.myblocklist.R;
public class CallLogFragment extends Fragment
{
private View view;
private ListView list_calllog;
private ArrayList<HashMap<String,String>> callLog;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState)
{
if(view==null)
{
view=inflater.inflate(R.layout.fragment_call_log_layout, container,false);
}
else
{
ViewGroup parent = (ViewGroup) view.getParent();
parent.removeView(view);
}
callLog=getCallLog();
CustomCallLogListAdapter adapter=new CustomCallLogListAdapter(getActivity(),R.layout.row_call_log_layout,callLog);
list_calllog=(ListView)view.findViewById(R.id.list_calllog);
list_calllog.setAdapter(adapter);
return view;
}
@SuppressLint("NewApi")
public ArrayList<HashMap<String,String>> getCallLog()
{
ArrayList<HashMap<String,String>> callLog=new ArrayList<HashMap<String,String>>();
CursorLoader cursorLoader=new CursorLoader(getActivity(),CallLog.Calls.CONTENT_URI, null, null, null, null);
Cursor cursor=cursorLoader.loadInBackground();
if(cursor.moveToFirst())
{
while (cursor.moveToNext())
{
HashMap<String,String> hashMap=new HashMap<String, String>();
hashMap.put(CallLog.Calls.NUMBER, cursor.getString(cursor.getColumnIndex(CallLog.Calls.NUMBER)));
hashMap.put(CallLog.Calls.DATE, cursor.getString(cursor.getColumnIndex(CallLog.Calls.DATE)));
hashMap.put(CallLog.Calls.DURATION, cursor.getString(cursor.getColumnIndex(CallLog.Calls.DURATION)));
callLog.add(hashMap);
}
}
return callLog;
}
}
自定义适配器类:
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import android.content.Context;
import android.provider.CallLog;
import android.text.format.DateFormat;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import com.broadcast.myblocklist.R;
public class CustomCallLogListAdapter extends ArrayAdapter<HashMap<String,String>>
{
private ArrayList<HashMap<String,String>> callLogData;
private Context context;
private int resource;
private View view;
private Holder holder;
private HashMap<String,String> hashMap;
public CustomCallLogListAdapter(Context context, int resource,ArrayList<HashMap<String, String>> objects)
{
super(context, resource, objects);
this.context=context;
this.resource=resource;
this.callLogData=objects;
}
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater inflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view=inflater.inflate(resource, parent,false);
holder=new Holder();
holder.text_number=(TextView)view.findViewById(R.id.text_calllog_number);
holder.text_date=(TextView)view.findViewById(R.id.text_calllog_date);
holder.text_time=(TextView)view.findViewById(R.id.text_calllog_time);
hashMap=callLogData.get(position);
Date date=new Date(Long.parseLong(hashMap.get(CallLog.Calls.DATE)));
java.text.DateFormat dateFormat=DateFormat.getDateFormat(context);
java.text.DateFormat timeformat=DateFormat.getTimeFormat(context);
holder.text_number.setText(hashMap.get(CallLog.Calls.NUMBER));
holder.text_time.setText(timeformat.format(date));
holder.text_date.setText(dateFormat.format(date));
return view;
}
public class Holder
{
TextView text_number;
TextView text_date;
TextView text_time;
}
}
适配器项目布局:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="@dimen/activity_horizontal_margin"
android:layout_marginLeft="@dimen/activity_vertical_margin"
android:layout_marginRight="@dimen/activity_vertical_margin"
android:layout_marginTop="@dimen/activity_horizontal_margin" >
<TextView
android:id="@+id/text_calllog_number"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:textStyle="bold" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/text_calllog_number"
android:layout_marginTop="5dp"
android:orientation="horizontal" >
<TextView
android:id="@+id/text_calllog_date"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
<TextView
android:id="@+id/text_calllog_time"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
</RelativeLayout>
和 fragment 布局:
<?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="vertical" >
<ListView
android:id="@+id/list_calllog"
android:layout_width="match_parent"
android:layout_height="match_parent"></ListView>
</LinearLayout>
这比你想要的更多。您可以根据需要自定义它。将您自定义的数据放入列表以填充ArrayList。仅将其用作基本示例。!!
希望对你有帮助。
关于android - Android fragment 中 ListView 的自定义适配器,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32475996/