大佬教程收集整理的这篇文章主要介绍了Android编程实现带有图标的ListView并带有长按菜单效果示例,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
package com.zxl; import java.util.ArrayList; import java.util.List; import org.w3c.dom.ls.LSException; import android.app.Activity; import android.os.bundle; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.MenuItem; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.AdapterContextMenuInfo; import android.widget.ListView; import android.widget.AdapterView.onItemClickListener; import android.widget.Toast; public class MainActivity extends Activity implements OnItemClickListener { /** Called when the activity is first created. */ ListView lv; List<ListViewItem> items; CustomListViewAdapter adapter; @Override public void onCreate(Bundle savedInstanceStatE) { super.onCreate(savedInstanceStatE); setContentView(R.layout.main); lv=(ListView)findViewById(R.id.listView1); items=new ArrayList<MainActivity.ListViewItem>(); items.add(new ListViewItem(){{ Thumbnailresource=R.drawable.ic_launcher; title="Item1"; Subtitle="Item1 Description"; }}); items.add(new ListViewItem(){{ Thumbnailresource=R.drawable.ic_launcher; title="Item2"; Subtitle="Item2 Description"; }}); items.add(new ListViewItem(){{ Thumbnailresource=R.drawable.ic_launcher; title="Item3"; Subtitle="Item3 Description"; }}); items.add(new ListViewItem(){{ Thumbnailresource=R.drawable.ic_launcher; title="Item4"; Subtitle="Item4 Description"; }}); adapter=new CustomListViewAdapter(this,items); lv.setAdapter(adapter); registerForContextMenu(lv); lv.setOnItemClickListener(this); } class ListViewItem{ public int Thumbnailresource; public String title; public String Subtitle; } public void onItemClick(AdapterView<?> parent,View view,int position,long id) { // TODO Auto-generated method stub /* ListViewItem item=items.get(position); //删除 items.remove(item); adapter=new CustomListViewAdapter(this,items); lv.setAdapter(adapter);*/ ListViewItem item=items.get(position); Toast.makeText(MainActivity.this,"this is :"+item,Toast.LENGTH_LONG).show(); } @Override public void onCreateContextMenu(ContextMenu menu,View v,ContextMenuInfo menuInfo) { // TODO Auto-generated method stub super.onCreateContextMenu(menu,v,menuInfo); menu.add("add"); menu.add("update"); menu.add("delete"); } @Override public Boolean onContextItemSELEcted(MenuItem item) { // TODO Auto-generated method stub super.onContextItemSELEcted(item); if(item.gettitle()=="add"){ Toast.makeText(MainActivity.this,"add",Toast.LENGTH_LONG).show(); items.add(new ListViewItem(){{ Thumbnailresource=R.drawable.ic_launcher; title="Item new"; Subtitle="Item new Description"; }}); adapter=new CustomListViewAdapter(this,items); lv.setAdapter(adapter); } else if(item.gettitle()=="update"){ //do somthing } else if(item.gettitle()=="delete"){ ContextMenuInfo info = item.getMenuInfo(); AdapterView.AdapterContextMenuInfo contextMenuInfo = (AdapterContextMenuInfo) info; // 获取选中行位置 int position = contextMenuInfo.position; ListViewItem itema=items.get(position); items.remove(itema); adapter=new CustomListViewAdapter(this,items); lv.setAdapter(adapter); } return true; } }
package com.zxl; import java.util.List; import com.zxl.MainActivity.ListViewItem; import android.app.Activity; import android.content.Context; 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 CustomListViewAdapter extends BaseAdapter { LayoutInflater inflater; List<ListViewItem> items; public CustomListViewAdapter(Activity context,List<ListViewItem> items) { @L_197_5@; this.items = items; this.inflater = (LayoutInflater)context.getSystemservice(Context.LAYOUT_INFLATER_serviCE); } public int getCount() { // TODO Auto-generated method stub return items.size(); } public Object getItem(int position) { // TODO Auto-generated method stub return null; } public long getItemId(int position) { // TODO Auto-generated method stub return 0; } public View getView(final int position,View convertView,ViewGroup parent) { // TODO Auto-generated method stub //items ListViewItem item=items.get(position); View vi=convertView; if(convertView==null) vi = inflater.inflate(R.layout.item_row,null); ImageView imgThumbnail=(ImageView) vi.findViewById(R.id.imgThumbnail); TextView txttitle =(TextView) vi.findViewById(R.id.txttitlE); TextView txtSubtitle=(TextView) vi.findViewById(R.id.txtSubtitlE); imgThumbnail.setImageresource(item.ThumbnailresourcE); txttitle.setText(item.title); txtSubtitle.setText(item.SubtitlE); return vi; } }
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://scheR_42_11845@as.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/textView1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@String/Hello" /> <ListView android:id="@+id/listView1" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layouT_Below="@+id/textView1" android:layout_alignParentTop="true" > </ListView> </RelativeLayout>
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout android:id="@+id/relativeLayout1" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://scheR_42_11845@as.android.com/apk/res/android" android:padding="5dip"> <ImageView android:layout_width="78dip" android:layout_height="78dip" android:id="@+id/imgThumbnail" android:layout_alignParentLeft="true" android:layout_centerInParent="true" android:layout_marginLeft="-3dip" android:scaleType="centerInside"> </ImageView> <TextView android:textAppearance="?android:attr/textAppearanceLarge" android:layout_height="wrap_content" android:text="TextView" android:layout_width="wrap_content" android:id="@+id/txttitle" android:layout_toRightOf="@+id/imgThumbnail" android:layout_marginTop="6dip" android:layout_marginLeft="6dip"> </TextView> <TextView android:layout_height="wrap_content" android:text="TextView" android:layout_width="wrap_content" android:id="@+id/txtSubtitle" android:layout_toRightOf="@+id/imgThumbnail" android:layouT_Below="@+id/txttitle" android:layout_marginTop="3dip" android:layout_marginLeft="6dip"> </TextView> </RelativeLayout>
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