如何使用baseadapter自定义listview

我想创build一个自定义ListView像这样：

我认为我必须使用BaseAdapter但我不知道它。

请帮帮我。

感谢名单。

Answer 1

main.xml中

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" > <ListView android:id="@+id/list" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" > </ListView> </RelativeLayout> 

custom.xml

 <?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" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <LinearLayout android:layout_width="255dp" android:layout_height="wrap_content" android:orientation="vertical" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <TextView android:id="@+id/title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Video1" android:textAppearance="?android:attr/textAppearanceLarge" android:textColor="#339966" android:textStyle="bold" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <TextView android:id="@+id/detail" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="video1" android:textColor="#606060" /> </LinearLayout> </LinearLayout> <ImageView android:id="@+id/img" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/ic_launcher" /> </LinearLayout> </LinearLayout> 

main.java包com.example.sample;

 import android.app.Activity; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; public class MainActivity extends Activity { ListView l1; String[] t1={"video1","video2"}; String[] d1={"lesson1","lesson2"}; int[] i1 ={R.drawable.ic_launcher,R.drawable.ic_launcher}; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); l1=(ListView)findViewById(R.id.list); l1.setAdapter(new dataListAdapter(t1,d1,i1)); } class dataListAdapter extends BaseAdapter { String[] Title, Detail; int[] imge; dataListAdapter() { Title = null; Detail = null; imge=null; } public dataListAdapter(String[] text, String[] text1,int[] text3) { Title = text; Detail = text1; imge = text3; } public int getCount() { // TODO Auto-generated method stub return Title.length; } public Object getItem(int arg0) { // TODO Auto-generated method stub return null; } public long getItemId(int position) { // TODO Auto-generated method stub return position; } public View getView(int position, View convertView, ViewGroup parent) { LayoutInflater inflater = getLayoutInflater(); View row; row = inflater.inflate(R.layout.custom, parent, false); TextView title, detail; ImageView i1; title = (TextView) row.findViewById(R.id.title); detail = (TextView) row.findViewById(R.id.detail); i1=(ImageView)row.findViewById(R.id.img); title.setText(Title[position]); detail.setText(Detail[position]); i1.setImageResource(imge[position]); return (row); } } } 

尝试这个 ……

Answer 2

 public class ListElementAdapter extends BaseAdapter{ String[] data; Context context; LayoutInflater layoutInflater; public ListElementAdapter(String[] data, Context context) { super(); this.data = data; this.context = context; layoutInflater = LayoutInflater.from(context); } @Override public int getCount() { return data.length; } @Override public Object getItem(int position) { return null; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { convertView= layoutInflater.inflate(R.layout.item, null); TextView txt=(TextView)convertView.findViewById(R.id.text); txt.setText(data[position]); return convertView; } } 

可能是它会帮助你…只需在您的主要活动中调用ListElementAdapter并将适配器设置为ListView。

Answer 3

创build您自己的BaseAdapter类，并使用它如下。

  public class NotificationScreen extends Activity { @Override protected void onCreate_Impl(Bundle savedInstanceState) { setContentView(R.layout.notification_screen); ListView notificationList = (ListView) findViewById(R.id.notification_list); NotiFicationListAdapter notiFicationListAdapter = new NotiFicationListAdapter(); notificationList.setAdapter(notiFicationListAdapter); homeButton = (Button) findViewById(R.id.home_button); } } 

制作您自己的BaseAdapter类和其单独的xml文件。

 public class NotiFicationListAdapter extends BaseAdapter { private ArrayList<HashMap<String, String>> data; private LayoutInflater inflater=null; public NotiFicationListAdapter(ArrayList data) { this.data=data; inflater =(LayoutInflater)baseActivity.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } public int getCount() { return data.size(); } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(int position, View convertView, ViewGroup parent) { View vi=convertView; if(convertView==null) vi = inflater.inflate(R.layout.notification_list_item, null); ImageView compleatImageView=(ImageView)vi.findViewById(R.id.complet_image); TextView name = (TextView)vi.findViewById(R.id.game_name); // name TextView email_id = (TextView)vi.findViewById(R.id.e_mail_id); // email ID TextView notification_message = (TextView)vi.findViewById(R.id.notification_message); // notification message compleatImageView.setBackgroundResource(R.id.address_book); name.setText(data.getIndex(position)); email_id.setText(data.getIndex(position)); notification_message.setTextdata.getIndex(position)); return vi; } } 

BaseAdapter xml文件。

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/inner_layout" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginBottom="5dp" android:layout_marginLeft="10dp" android:layout_weight="4" android:background="@drawable/list_view_frame" android:gravity="center_vertical" android:padding="5dp" > <TextView android:id="@+id/game_name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Game name" android:textColor="#FFFFFF" android:textSize="15dip" android:textStyle="bold" android:typeface="sans" /> <TextView android:id="@+id/e_mail_id" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/game_name" android:layout_marginTop="1dip" android:text="E-Mail Id" android:textColor="#FFFFFF" android:textSize="10dip" /> <TextView android:id="@+id/notification_message" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/game_name" android:layout_toRightOf="@id/e_mail_id" android:paddingLeft="5dp" android:text="Notification message" android:textColor="#FFFFFF" android:textSize="10dip" /> <ImageView android:id="@+id/complet_image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_centerVertical="true" android:layout_marginBottom="30dp" android:layout_marginRight="10dp" android:src="@drawable/complete_tag" android:visibility="invisible" /> </RelativeLayout> 

相应地更改并使用。

Answer 4

我build议使用自定义的适配器，首先创build一个Xml文件，例如layout/customlistview.xml

 <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" > <ImageView android:id="@+id/image" android:layout_alignParentRight="true" android:paddingRight="4dp" /> <TextView android:id="@+id/title" android:layout_toLeftOf="@id/image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="23sp" android:maxLines="1" /> <TextView android:id="@+id/subtitle" android:layout_toLeftOf="@id/image" android:layout_below="@id/title" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </RelativeLayout> 

假设你有这样的自定义类

 public class CustomClass { private long id; private String title, subtitle, picture; public CustomClass () { } public CustomClass (long id, String title, String subtitle, String picture) { this.id = id; this.title= title; this.subtitle= subtitle; this.picture= picture; } //add getters and setters } 

而CustomAdapter.java使用xml-layout

 public class CustomAdapter extends ArrayAdapter { private Context context; private int resource; private LayoutInflater inflater; public CustomAdapter (Context context, List<CustomClass> values) { // or String[][] or whatever super(context, R.layout.customlistviewitem, values); this.context = context; this.resource = R.layout.customlistview; this.inflater = LayoutInflater.from(context); } @Override public View getView(int position, View convertView, ViewGroup parent) { convertView = (RelativeLayout) inflater.inflate(resource, null); CustomClass item = (CustomClass) getItem(position); TextView textviewTitle = (TextView) convertView.findViewById(R.id.title); TextView textviewSubtitle = (TextView) convertView.findViewById(R.id.subtitle); ImageView imageview = (ImageView) convertView.findViewById(R.id.image); //fill the textviews and imageview with the values textviewTitle = item.getTtile(); textviewSubtitle = item.getSubtitle(); if (item.getAfbeelding() != null) { int imageResource = context.getResources().getIdentifier("drawable/" + item.getImage(), null, context.getPackageName()); Drawable image = context.getResources().getDrawable(imageResource); } imageview.setImageDrawable(image); return convertView; } } 

你设法做到了吗？ 随意问你是否想要更多的东西:)

编辑 ：更改适配器，以适应列表，而不是一个列表

Answer 5

 private class ObjectAdapter extends BaseAdapter { private Context context; private List<Object>objects; public ObjectAdapter(Context context, List<Object> objects) { this.context = context; this.objects = objects; } @Override public int getCount() { return objects.size(); } @Override public Object getItem(int position) { return objects.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if(convertView==null){ holder = new ViewHolder(); convertView = LayoutInflater.from(context).inflate(android.R.layout.simple_list_item_1, parent, false); holder.text = (TextView) convertView.findViewById(android.R.id.text1); convertView.setTag(holder); }else{ holder = (ViewHolder) convertView.getTag(); } holder.text.setText(getItem(position).toString())); return convertView; } class ViewHolder { TextView text; } }