如何在AlertDialog中显示arraylist

我有一个问题，如何向AllertDialog显示这个数组item_detail？

//Beri keterangan untuk arrayitem detail ItemDetail item_detail = new ItemDetail(); item_detail.setName("Cake"); item_detail.setItemDescription(""); item_detail.setPrice("5.000"); item_detail.setImageNumber(1); result.add(item_detail); item_detail = new ItemDetail(); item_detail.setName("Coklat"); item_detail.setItemDescription("Bulat"); item_detail.setPrice("5.500"); item_detail.setImageNumber(2); result.add(item_detail); item_detail = new ItemDetail(); item_detail.setName("Purple"); item_detail.setItemDescription("Cupcake"); item_detail.setPrice("6.000"); item_detail.setImageNumber(3); result.add(item_detail); return result; } 

}

这是我的代码：

 public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_list_view_image); ArrayList image_detail = GetSearchResult(); final ListView lv1 = (ListView) findViewById(R.id.listV_main); lv1.setAdapter(new ItemListBaseAdapter(this, image_detail)); lv1.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView a, View view, int position, long id){ Object o = lv1.getItemAtPosition(position); ItemDetail obj_ItemDetail = (ItemDetail)o; new AlertDialog.Builder(view.getContext()) .setIcon(obj_ItemDetail.getImageNumber()) .setMessage(obj_ItemDetail.getItemDescription()) .setNegativeButton("Close", null).show(); Toast.makeText(ListViewImageActivity.this, "Anda Memilih : " + " " + obj_ItemDetail.getName(), Toast.LENGTH_SHORT).show(); } }); } private ArrayList GetSearchResult() { // TODO Auto-generated method stub ArrayList result = new ArrayList(); //Beri keterangan untuk arrayitem detail ItemDetail item_detail = new ItemDetail(); item_detail.setName("Cake"); item_detail.setItemDescription(""); item_detail.setPrice("5.000"); item_detail.setImageNumber(1); result.add(item_detail); item_detail = new ItemDetail(); item_detail.setName("Coklat"); item_detail.setItemDescription("Bulat"); item_detail.setPrice("5.500"); item_detail.setImageNumber(2); result.add(item_detail); item_detail = new ItemDetail(); item_detail.setName("Purple"); item_detail.setItemDescription("Cupcake"); item_detail.setPrice("6.000"); item_detail.setImageNumber(3); result.add(item_detail); return result; } 

}

Answer 1

我还有一个问题，如何让图片显示在内容区域而不是图标中。 你能帮我一次吗？ 所以这是您的完整代码：

XML：（alert_background.xml）

Java代码：

 package com.example.stackoflow_alertdialog; import java.util.ArrayList; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; public class SOF_AlertDialog extends Activity { ArrayList image_detail; private int[] images={R.drawable.ball1,R.drawable.ball2,R.drawable.ball5}; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_sof__alert_dialog); image_detail = GetSearchResult(); final ListView lv1 = (ListView) findViewById(R.id.listV_main); lv1.setAdapter(new ItemListBaseAdapter()); lv1.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView a, View view, int position, long id) { AlertDialog.Builder mAlert = new AlertDialog.Builder(SOF_AlertDialog.this); view = getLayoutInflater().inflate(R.layout.alert_background,null); ImageView Content_img = (ImageView)view.findViewById(R.id.imageView1); TextView Content_txt1 = (TextView)view.findViewById(R.id.textView1); TextView Content_txt2 = (TextView)view.findViewById(R.id.textView2); TextView Content_txt3 = (TextView)view.findViewById(R.id.textView3); Content_img.setImageResource(image_detail.get(position).getImageNumber()); Content_txt1.setText(image_detail.get(position).getName()); Content_txt2.setText(image_detail.get(position).getItemDescription()); Content_txt3.setText("Price: "+image_detail.get(position).getPrice()); // mAlert.setIcon(image_detail.get(position).getImageNumber()). mAlert.setTitle(image_detail.get(position).getName()). setView(view). // setMessage(image_detail.get(position).getItemDescription()+"\nPrice: "+image_detail.get(position).getPrice()). setPositiveButton("Buy", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub dialog.dismiss(); } }). setNegativeButton("Cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub dialog.dismiss(); } }).create().show(); } }); } private ArrayList GetSearchResult() { // TODO Auto-generated method stub ArrayList result = new ArrayList(); //Beri keterangan untuk arrayitem detail ItemDetail item_detail = new ItemDetail(); item_detail.setName("Cake"); item_detail.setItemDescription(""); item_detail.setPrice("5.000"); item_detail.setImageNumber(images[0]); result.add(item_detail); item_detail = new ItemDetail(); item_detail.setName("Coklat"); item_detail.setItemDescription("Bulat"); item_detail.setPrice("5.500"); item_detail.setImageNumber(images[1]); result.add(item_detail); item_detail = new ItemDetail(); item_detail.setName("Purple"); item_detail.setItemDescription("Cupcake"); item_detail.setPrice("6.000"); item_detail.setImageNumber(images[2]); result.add(item_detail); return result; } private class ItemListBaseAdapter extends BaseAdapter { @Override public int getCount() { // TODO Auto-generated method stub return image_detail.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { convertView = getLayoutInflater().inflate(R.layout.custom_row, parent, false); TextView txtName = (TextView)convertView.findViewById(R.id.textView1); TextView txtDescription = (TextView)convertView.findViewById(R.id.textView2); TextView txtPrice = (TextView)convertView.findViewById(R.id.textView3); ImageView img = (ImageView)convertView.findViewById(R.id.imageView1); txtName.setText(image_detail.get(position).getName()); txtDescription.setText(image_detail.get(position).getItemDescription()); txtPrice.setText(image_detail.get(position).getPrice()); img.setImageResource(image_detail.get(position).getImageNumber()); return convertView; } } } 

Answer 2

创建一个自定义适配器并调用它：

 ItemDetailAdapter adapter=new ItemDetailAdapter(this,GetSearchResult()); new AlertDialog.Builder(view.getContext()).setAdapter(adapter, new OnClickListener() { @Override public void onClick(DialogInterface arg0, int arg1) { } }); 

Answer 3

只需将下面的代码放在项目中，然后根据您的要求将图像放入可绘制的文件夹中。 而已。 你在这里完成：

Java代码：

 public class SOF_AlertDialog extends Activity { ArrayList image_detail; private int[] images={R.drawable.ball1,R.drawable.ball2,R.drawable.ball5}; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_sof__alert_dialog); image_detail = GetSearchResult(); final ListView lv1 = (ListView) findViewById(R.id.listV_main); lv1.setAdapter(new ItemListBaseAdapter()); lv1.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView a, View view, int position, long id) { AlertDialog.Builder mAlert = new AlertDialog.Builder(SOF_AlertDialog.this); mAlert.setIcon(image_detail.get(position).getImageNumber()). setTitle(image_detail.get(position).getName()). setMessage(image_detail.get(position).getItemDescription()+"\nPrice: "+image_detail.get(position).getPrice()). setPositiveButton("Buy", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub dialog.dismiss(); } }). setNegativeButton("Cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub dialog.dismiss(); } }).create().show(); } }); } private ArrayList GetSearchResult() { // TODO Auto-generated method stub ArrayList result = new ArrayList(); //Beri keterangan untuk arrayitem detail ItemDetail item_detail = new ItemDetail(); item_detail.setName("Cake"); item_detail.setItemDescription(""); item_detail.setPrice("5.000"); item_detail.setImageNumber(images[0]); result.add(item_detail); item_detail = new ItemDetail(); item_detail.setName("Coklat"); item_detail.setItemDescription("Bulat"); item_detail.setPrice("5.500"); item_detail.setImageNumber(images[1]); result.add(item_detail); item_detail = new ItemDetail(); item_detail.setName("Purple"); item_detail.setItemDescription("Cupcake"); item_detail.setPrice("6.000"); item_detail.setImageNumber(images[2]); result.add(item_detail); return result; } private class ItemListBaseAdapter extends BaseAdapter { @Override public int getCount() { // TODO Auto-generated method stub return image_detail.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { convertView = getLayoutInflater().inflate(R.layout.custom_row, parent, false); TextView txtName = (TextView)convertView.findViewById(R.id.textView1); TextView txtDescription = (TextView)convertView.findViewById(R.id.textView2); TextView txtPrice = (TextView)convertView.findViewById(R.id.textView3); ImageView img = (ImageView)convertView.findViewById(R.id.imageView1); txtName.setText(image_detail.get(position).getName()); txtDescription.setText(image_detail.get(position).getItemDescription()); txtPrice.setText(image_detail.get(position).getPrice()); img.setImageResource(image_detail.get(position).getImageNumber()); return convertView; } } }