我的ListView 每行有两个Button,和一个EditText
要求是按Button改变EditText的值。现在问题是如何取得EditText代码如下(差不多是照抄网上的实例)package com.DoubleSoft.and.MutilListViewStudy;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MutilListViewStudy extends ListActivity {
/** Called when the activity is first created. */
private List<Map<String, Object>> mData;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
mData = getData();
MyAdapter adapter = new MyAdapter(this);
setListAdapter(adapter);
}
private List<Map<String, Object>> getData() {
// TODO Auto-generated method stub
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); Map<String, Object> map = new HashMap<String, Object>();
map.put("quanity", "数量1");
list.add(map);
map = new HashMap<String, Object>();
map.put("quanity", "数量2");
list.add(map);
return list; }
public class ViewHolder{
public TextView tableNo;
public ImageButton btnMinish;
public EditText etQuanity;
public ImageButton btnIncrease;
}
public class MyAdapter extends BaseAdapter { private LayoutInflater mInflater;
int index;
View vv;
public MyAdapter(Context context){
this.mInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return mData.size();
} @Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
} @Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
} @Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
holder=new ViewHolder();
index=position;
vv=convertView;
convertView = mInflater.inflate(R.layout.main, null);
holder.tableNo = (TextView)convertView.findViewById(R.id.tableno);
holder.btnMinish=(ImageButton)convertView.findViewById(com.DoubleSoft.and.MutilListViewStudy.R.id.imgbtn01);
holder.etQuanity=(EditText)convertView.findViewById(com.DoubleSoft.and.MutilListViewStudy.R.id.et01);
holder.btnIncrease=(ImageButton)convertView.findViewById(com.DoubleSoft.and.MutilListViewStudy.R.id.imgbtn02);
convertView.setTag(holder);
}else {
holder = (ViewHolder)convertView.getTag();
}
holder.tableNo.setText((String)mData.get(position).get("quanity"));
holder.btnIncrease.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//如何取得对应EditText并修改其傎
}
});
holder.btnMinish.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//如何取得对应EditText并修改其傎
}
});
return convertView;
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/tableno"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<ImageButton
android:id="@+id/imgbtn01"
android:layout_width="50dip"
android:layout_height="50dip"
android:scaleType="centerInside"
android:src="@drawable/minish"
/>
<EditText
android:id="@+id/et01"
android:layout_width="100dip"
android:layout_height="50dip"
android:text="0"
android:textSize="25px"
/>
<ImageButton
android:id="@+id/imgbtn02"
android:layout_width="50dip"
android:layout_height="50dip"
android:scaleType="centerInside"
android:src="@drawable/increase"
/></LinearLayout>
要求是按Button改变EditText的值。现在问题是如何取得EditText代码如下(差不多是照抄网上的实例)package com.DoubleSoft.and.MutilListViewStudy;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MutilListViewStudy extends ListActivity {
/** Called when the activity is first created. */
private List<Map<String, Object>> mData;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
mData = getData();
MyAdapter adapter = new MyAdapter(this);
setListAdapter(adapter);
}
private List<Map<String, Object>> getData() {
// TODO Auto-generated method stub
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); Map<String, Object> map = new HashMap<String, Object>();
map.put("quanity", "数量1");
list.add(map);
map = new HashMap<String, Object>();
map.put("quanity", "数量2");
list.add(map);
return list; }
public class ViewHolder{
public TextView tableNo;
public ImageButton btnMinish;
public EditText etQuanity;
public ImageButton btnIncrease;
}
public class MyAdapter extends BaseAdapter { private LayoutInflater mInflater;
int index;
View vv;
public MyAdapter(Context context){
this.mInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return mData.size();
} @Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
} @Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
} @Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
holder=new ViewHolder();
index=position;
vv=convertView;
convertView = mInflater.inflate(R.layout.main, null);
holder.tableNo = (TextView)convertView.findViewById(R.id.tableno);
holder.btnMinish=(ImageButton)convertView.findViewById(com.DoubleSoft.and.MutilListViewStudy.R.id.imgbtn01);
holder.etQuanity=(EditText)convertView.findViewById(com.DoubleSoft.and.MutilListViewStudy.R.id.et01);
holder.btnIncrease=(ImageButton)convertView.findViewById(com.DoubleSoft.and.MutilListViewStudy.R.id.imgbtn02);
convertView.setTag(holder);
}else {
holder = (ViewHolder)convertView.getTag();
}
holder.tableNo.setText((String)mData.get(position).get("quanity"));
holder.btnIncrease.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//如何取得对应EditText并修改其傎
}
});
holder.btnMinish.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//如何取得对应EditText并修改其傎
}
});
return convertView;
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/tableno"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<ImageButton
android:id="@+id/imgbtn01"
android:layout_width="50dip"
android:layout_height="50dip"
android:scaleType="centerInside"
android:src="@drawable/minish"
/>
<EditText
android:id="@+id/et01"
android:layout_width="100dip"
android:layout_height="50dip"
android:text="0"
android:textSize="25px"
/>
<ImageButton
android:id="@+id/imgbtn02"
android:layout_width="50dip"
android:layout_height="50dip"
android:scaleType="centerInside"
android:src="@drawable/increase"
/></LinearLayout>
然后看public View getView(int position, View convertView, ViewGroup parent) 中的
holder.etQuanity=(EditText)convertView.findViewById(com.DoubleSoft.and.MutilListViewStudy.R.id.et01);
你要的EditText就是它了。
<EditText
android:id="@+id/et01"
android:layout_width="100dip"
android:layout_height="50dip"
android:text="0"
android:textSize="25px"
/>
这个我倒是知道但是
在
holder.btnIncrease.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//如何取得对应EditText并修改其傎
}
});
中我不能用holder.etQuanity.setText()
我ViewHolder写成这样,就不用再去取了。public class ViewHolder{
public TextView tableNo;
public ImageButton btnMinish;
public EditText etQuanity;
public ImageButton btnIncrease;
public ViewHolder(TextView _tableNo,ImageButton _btnMinish,EditText _etQuanity,ImageButton _btnIncrease)
{
tableNo=_tableNo;
btnMinish=_btnMinish;
etQuanity=_etQuanity;
btnIncrease=_btnIncrease;
btnMinish.setOnClickListener(new OnClickListener(){ @Override
public void onClick(View v) {
// TODO Auto-generated method stub
etQuanity.setText("13");
}});
}谢谢3楼兄弟的提醒
看如下例子:List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); Map<String, Object> map = new HashMap<String, Object>();
map.put("etQuanity", "12");
list.add(map);
mData.set(6, map);
adapter.notifyDataSetChanged();
是这样更新的~~lz试试吧
Map<String, Object> map = new HashMap<String, Object>();
map.put("etQuanity", "12");
list.add(map);
mData.set(6, map);
adapter.notifyDataSetChanged();
注意把adapter变成局部变量
如果只是为了附值,就比较好办,
我是要在按BUTTON时改变它的值