Android:自定义列表视图,适配器中的表格视图
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【中文标题】Android:自定义列表视图,适配器中的表格视图【英文标题】:Android: Customize list view, Table view in adapter 【发布时间】:2014-05-02 20:06:55 【问题描述】:我以编程方式在列表视图适配器中创建了一个表视图。为此,我首先创建了一个适配器布局:
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_
android:layout_
android:background="@android:color/black"
android:stretchColumns="*"
android:id="@+id/tablelayout" >
</ableLayout>
那么我在适配器中所做的是:
public class DemoAdapter extends ArrayAdapter<String>
//Global Variable declaration
Context myContext;
String[] key, value, loop;
public DemoAdapter(Context context, String[] key, String[] value, String[] loop)
super(context, R.layout.demo_screen_adapter, loop);
this.myContext = context;
this.key = key;
this.value = value;
this.loop = loop;
@Override
public View getView(int position, View convertView, ViewGroup parent)
View row = convertView;
if (row == null)
// get reference to the activity
LayoutInflater inflater = ((Activity) myContext).getLayoutInflater();
// Inflate the custom text which will replace the default text view
//list_item is a simple linear layout which contain textView1 in it.
row = inflater.inflate(R.layout.demo_screen_adapter, parent, false);
TableLayout tableLayout = (TableLayout) row.findViewById(R.id.tablelayout);
for(int i=0; i<5; i++)
TableRow tableRow = new TableRow(myContext);
tableRow.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT));
TextView tvKey = new TextView(myContext);
tvKey.setText(key[(position*5)+i]);
tvKey.setTextColor(Color.WHITE);
tvKey.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT));
tableRow.addView(tvKey);
TextView tvValue = new TextView(myContext);
tvValue.setText(value[(position*5)+i]);
tvValue.setTextColor(Color.WHITE);
tvValue.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT));
tableRow.addView(tvValue);
tableLayout.addView(tableRow, new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.MATCH_PARENT));
return row;
这很好用。在我的每个列表项中,都有一个包含大约两列和五行的表格视图。
现在问题是:
我想在单击列表项时获取特定值。我不能这样做。 我尝试的是:
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3)
Toast.makeText(this, ""+(String) arg0.getItemAtPosition(position), Toast.LENGTH_LONG).show();
但它显示了我点击的位置。
我该怎么做,请指导我。
【问题讨论】:
【参考方案1】:在您的自定义适配器中。使用支架。
这是我的自定义适配器
import java.util.ArrayList;
import com.samplelogin.CustomerDetails;
import com.samplelogin.R;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.TextView;
public class UserCustomAdapter extends ArrayAdapter<Customers>
Context context;
int layoutResourceId;
ArrayList<Customers> data = new ArrayList<Customers>();
public UserCustomAdapter(Context context, int layoutResourceId,
ArrayList<Customers> data)
super(context, layoutResourceId, data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
@Override
public View getView(final int position, View convertView, ViewGroup parent)
View row = convertView;
UserHolder holder = null;
if (row == null)
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
holder = new UserHolder();
holder.textName = (TextView) row.findViewById(R.id.textView1);
holder.textAddress = (TextView) row.findViewById(R.id.textView2);
holder.textLocation = (TextView) row.findViewById(R.id.textView3);
holder.btnEdit = (Button) row.findViewById(R.id.button1);
row.setTag(holder);
else
holder = (UserHolder) row.getTag();
Customers user = data.get(position);
holder.textName.setText(user.getName());
holder.textAddress.setText(user.getAddress());
holder.textLocation.setText("");
holder.btnEdit.setOnClickListener(new OnClickListener()
@Override
public void onClick(View v)
// TODO Auto-generated method stub
Customers user = data.get(position);
user.setTID(user.getID());
user.setTName(user.getName());
user.setTAddress(user.getAddress());
user.setTTelNo(user.getTelNo());
user.setTMobileNo(user.getMobileNo());
user.setTFaxNo(user.getFaxNo());
Intent intent = new Intent(context, CustomerDetails.class);
context.startActivity(intent);
);
return row;
static class UserHolder
TextView textName;
TextView textAddress;
TextView textLocation;
Button btnEdit;
Button btnDelete;
在我的活动中。我把数据放在上面:
声明变量
// Customer
ListView CustomerList;
UserCustomAdapter CustomerAdapter;
ArrayList<Customers> CustomerArray = new ArrayList<Customers>();
Button addCustomer;
用数据填充你的值。
// Customer Tab
cdb = new CustomerDB(getApplicationContext());
int custcount = cdb.getCustomerCount();
if (custcount > 0)
List<Customers> cdbL = cdb.getAllCustomers();
int listSize = cdbL.size();
for (int i = 0; i < listSize; i++)
CustomerArray.add(new Customers(cdbL.get(i).getDBName()
.toString(), cdbL.get(i).getDBAddress().toString(),
cdbL.get(i).getDBTelNo().toString(), cdbL.get(i)
.getDBMobileNo().toString(), cdbL.get(i)
.getDBFaxNo().toString(), cdbL.get(i).getDBID()
.toString()));
现在,从您的列表中。将您的数据传输到您的自定义适配器
// set item into adapter
CustomerAdapter = new UserCustomAdapter(MainMaintenance.this,
R.layout.maintenancetab, CustomerArray);
CustomerList = (ListView) findViewById(R.id.lvCustomer);
CustomerList.setItemsCanFocus(false);
CustomerList.setAdapter(CustomerAdapter);
在这里,您可以单击该项目并执行您想要的操作。在此示例中,我将我的数据传递到公共课程的列表中,然后我进入下一个活动。
// get on item click listener
CustomerList.setOnItemClickListener(new OnItemClickListener()
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3)
// TODO Auto-generated method stub
Customers user = CustomerArray.get(arg2);
user.setTID(user.getID());
user.setTName(user.getName());
user.setTAddress(user.getAddress());
user.setTTelNo(user.getTelNo());
user.setTMobileNo(user.getMobileNo());
user.setTFaxNo(user.getFaxNo());
Intent intent = new Intent(MainMaintenance.this,
CustomerDetails.class);
startActivity(intent);
);
您的自定义适配器中的 setOnClickListener 是您是否要在自定义适配器中放置一个按钮 :) 如果您感到困惑,请告诉我 :)
希望这个示例代码能给你一个思路,对你有所帮助。
【讨论】:
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