ListView 与 ScrollView 同在一个界面用头脑想想都觉得不大可能这样做，但还真的有美工这样做了，有点郁闷~！！沟通无果，解决之~~~~！初期还真没啥头绪，Google 一下看到有很多同样碰到这类头痛的问题，不好意思还没描述问题症状。ListView 与 ScrollView 同在一界面会导致ListView 显示变形，因为ListView 也有自带的滚动事件，故无法与ScrollView 相容，可能造成的现象是ListView 只能显示一行或者两行，其他数据在那一点儿宽的地方做滚动，甚不雅观。
下面是我的一个实现 步骤：
- 1、继承LinearLayout，既然会冲突那就不用ListView 改成线性布局做动态布局效果
- 2、继承BaseAdapter ，可以参照一下Android app源码中 Widget 目录下的SimpleAdapter 为前面扩展的LinearLayout做数据。
- 3、模拟数据填充扩展后的BaseAdapter 为扩展后的LinearLayout 加载数据
第一步：新建LinearLayoutForListView 类使其扩展LinearLayout重写以下两个方法：
<!--<br/ />
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-->public LinearLayoutForListView(Context context) {
super(context);
}
public LinearLayoutForListView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}
super(context);
}
public LinearLayoutForListView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}
这两个方法可选，不过建议都写上，第一个方法可以让我们通过 编程的方式 实例化出来，第二个方法可以允许我们通过 XML的方式注册 控件，可以在第二个方法里面为扩展的复合组件加属性，详细使用方法请点击这里 。
为其添加get / set 方法
<!--<br/ />
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-->/**
* 获取Adapter
*
* @return adapter
*/
public AdapterForLinearLayout getAdpater() {
return adapter;
}
/**
* 设置数据
*
* @param adpater
*/
publicvoid setAdapter(AdapterForLinearLayout adpater) {
this.adapter = adpater;
bindLinearLayout();
}
/**
* 获取点击事件
*
* @return
*/
public OnClickListener getOnclickListner() {
return onClickListener;
}
/**
* 设置点击事件
*
* @param onClickListener
*/
publicvoid setOnclickLinstener(OnClickListener onClickListener) {
this.onClickListener = onClickListener;
}
* 获取Adapter
*
* @return adapter
*/
public AdapterForLinearLayout getAdpater() {
return adapter;
}
/**
* 设置数据
*
* @param adpater
*/
publicvoid setAdapter(AdapterForLinearLayout adpater) {
this.adapter = adpater;
bindLinearLayout();
}
/**
* 获取点击事件
*
* @return
*/
public OnClickListener getOnclickListner() {
return onClickListener;
}
/**
* 设置点击事件
*
* @param onClickListener
*/
publicvoid setOnclickLinstener(OnClickListener onClickListener) {
this.onClickListener = onClickListener;
}
第二步：新建AdapterForLinearLayout 类继承自BaseAdapter，并为其添加构造函数
<!--<br/ />
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-->private LayoutInflater mInflater;
privateint resource;
private List<?extends Map<String, ?>> data;
private String[] from;
privateint[] to;
public AdapterForLinearLayout(Context context,
List<?extends Map<String, ?>> data, int resouce, String[] from,
int[] to) {
this.data = data;
this.resource = resouce;
this.data = data;
this.from = from;
this.to = to;
this.mInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
privateint resource;
private List<?extends Map<String, ?>> data;
private String[] from;
privateint[] to;
public AdapterForLinearLayout(Context context,
List<?extends Map<String, ?>> data, int resouce, String[] from,
int[] to) {
this.data = data;
this.resource = resouce;
this.data = data;
this.from = from;
this.to = to;
this.mInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
此构造函数模仿 simpleAdapter 通过传进来的resouce 为布局设置数据。通过继承BaseAdapter 重要的实现方法在下面getView ，此方法判断通过传进来的 String[] from 与 int[] to 为分别查找出View 并为View 设置相应的Text，代码如下：
<!--<br/ />
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-->@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
convertView = mInflater.inflate(resource, null);
Map<String, ?> item = data.get(position);
int count = to.length;
for (int i =0; i < count; i++) {
View v = convertView.findViewById(to[i]);
bindView(v, item, from[i]);
}
convertView.setTag(position);
return convertView;
}
/**
* 绑定视图
* @param view
* @param item
* @param from
*/
privatevoid bindView(View view, Map<String, ?> item, String from) {
Object data = item.get(from);
if (view instanceof TextView) {
((TextView) view).setText(data ==null?"" : data.toString());
}
}
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
convertView = mInflater.inflate(resource, null);
Map<String, ?> item = data.get(position);
int count = to.length;
for (int i =0; i < count; i++) {
View v = convertView.findViewById(to[i]);
bindView(v, item, from[i]);
}
convertView.setTag(position);
return convertView;
}
/**
* 绑定视图
* @param view
* @param item
* @param from
*/
privatevoid bindView(View view, Map<String, ?> item, String from) {
Object data = item.get(from);
if (view instanceof TextView) {
((TextView) view).setText(data ==null?"" : data.toString());
}
}
Tip:
- BindView 方法是一个自定义方法，在方法体内可以为通过判断使本类更具灵活性，如上，你不仅可以判断是TextView 并且可以传入任何你想要的View 只要在方法体内加入相应判断即可，数据可以通过data 做相应处理，具体如何操作读者可另行测试。
- convertView.setTag(position); 此句代码为View 设置tag 在以后我们可以通过 getTag 找出下标，后文有介绍如何通过下标操作数据。
下面是两个类的全部代码，读者可以无须更改直接使用：
LinearLayoutForListView
<!--<br/ />
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-->package com.terry.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.LinearLayout;
publicclass LinearLayoutForListView extends LinearLayout {
private AdapterForLinearLayout adapter;
private OnClickListener onClickListener =null;
/**
* 绑定布局
*/
publicvoid bindLinearLayout() {
int count = adapter.getCount();
for (int i =0; i < count; i++) {
View v = adapter.getView(i, null, null);
v.setOnClickListener(this.onClickListener);
if (i == count -1) {
LinearLayout ly = (LinearLayout) v;
ly.removeViewAt(2);
}
addView(v, i);
}
Log.v("countTAG", ""+ count);
}
public LinearLayoutForListView(Context context) {
super(context);
}
public LinearLayoutForListView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}
/**
* 获取Adapter
*
* @return adapter
*/
public AdapterForLinearLayout getAdpater() {
return adapter;
}
/**
* 设置数据
*
* @param adpater
*/
publicvoid setAdapter(AdapterForLinearLayout adpater) {
this.adapter = adpater;
bindLinearLayout();
}
/**
* 获取点击事件
*
* @return
*/
public OnClickListener getOnclickListner() {
return onClickListener;
}
/**
* 设置点击事件
*
* @param onClickListener
*/
publicvoid setOnclickLinstener(OnClickListener onClickListener) {
this.onClickListener = onClickListener;
}
}
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.LinearLayout;
publicclass LinearLayoutForListView extends LinearLayout {
private AdapterForLinearLayout adapter;
private OnClickListener onClickListener =null;
/**
* 绑定布局
*/
publicvoid bindLinearLayout() {
int count = adapter.getCount();
for (int i =0; i < count; i++) {
View v = adapter.getView(i, null, null);
v.setOnClickListener(this.onClickListener);
if (i == count -1) {
LinearLayout ly = (LinearLayout) v;
ly.removeViewAt(2);
}
addView(v, i);
}
Log.v("countTAG", ""+ count);
}
public LinearLayoutForListView(Context context) {
super(context);
}
public LinearLayoutForListView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}
/**
* 获取Adapter
*
* @return adapter
*/
public AdapterForLinearLayout getAdpater() {
return adapter;
}
/**
* 设置数据
*
* @param adpater
*/
publicvoid setAdapter(AdapterForLinearLayout adpater) {
this.adapter = adpater;
bindLinearLayout();
}
/**
* 获取点击事件
*
* @return
*/
public OnClickListener getOnclickListner() {
return onClickListener;
}
/**
* 设置点击事件
*
* @param onClickListener
*/
publicvoid setOnclickLinstener(OnClickListener onClickListener) {
this.onClickListener = onClickListener;
}
}
AdapterForLinearLayout
<!--<br/ />
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http://www.CodeHighlighter.com/<br/ />
<br/ />
-->package com.terry.widget;
import java.util.List;
import java.util.Map;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
publicclass AdapterForLinearLayout extends BaseAdapter {
private LayoutInflater mInflater;
privateint resource;
private List<?extends Map<String, ?>> data;
private String[] from;
privateint[] to;
public AdapterForLinearLayout(Context context,
List<?extends Map<String, ?>> data, int resouce, String[] from,
int[] to) {
this.data = data;
this.resource = resouce;
this.data = data;
this.from = from;
this.to = to;
this.mInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
publicint getCount() {
// TODO Auto-generated method stub
return data.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return data.get(position);
}
@SuppressWarnings("unchecked")
public String get(int position, Object key) {
Map<String, ?> map = (Map<String, ?>) getItem(position);
return map.get(key).toString();
}
@Override
publiclong getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
convertView = mInflater.inflate(resource, null);
Map<String, ?> item = data.get(position);
int count = to.length;
for (int i =0; i < count; i++) {
View v = convertView.findViewById(to[i]);
bindView(v, item, from[i]);
}
convertView.setTag(position);
return convertView;
}
/**
* 绑定视图
* @param view
* @param item
* @param from
*/
privatevoid bindView(View view, Map<String, ?> item, String from) {
Object data = item.get(from);
if (view instanceof TextView) {
((TextView) view).setText(data ==null?"" : data.toString());
}
}
}
import java.util.List;
import java.util.Map;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
publicclass AdapterForLinearLayout extends BaseAdapter {
private LayoutInflater mInflater;
privateint resource;
private List<?extends Map<String, ?>> data;
private String[] from;
privateint[] to;
public AdapterForLinearLayout(Context context,
List<?extends Map<String, ?>> data, int resouce, String[] from,
int[] to) {
this.data = data;
this.resource = resouce;
this.data = data;
this.from = from;
this.to = to;
this.mInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
publicint getCount() {
// TODO Auto-generated method stub
return data.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return data.get(position);
}
@SuppressWarnings("unchecked")
public String get(int position, Object key) {
Map<String, ?> map = (Map<String, ?>) getItem(position);
return map.get(key).toString();
}
@Override
publiclong getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
convertView = mInflater.inflate(resource, null);
Map<String, ?> item = data.get(position);
int count = to.length;
for (int i =0; i < count; i++) {
View v = convertView.findViewById(to[i]);
bindView(v, item, from[i]);
}
convertView.setTag(position);
return convertView;
}
/**
* 绑定视图
* @param view
* @param item
* @param from
*/
privatevoid bindView(View view, Map<String, ?> item, String from) {
Object data = item.get(from);
if (view instanceof TextView) {
((TextView) view).setText(data ==null?"" : data.toString());
}
}
}
对应的XML 如下：
<!--<br/ />
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<br/ />
--><?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:id="@+id/TextView01"
android:layout_marginLeft="10px" android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content" android:layout_height="wrap_content">
</TextView>
<TextView android:id="@+id/TextView02" android:layout_width="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_marginLeft="10px" android:layout_height="wrap_content">
</TextView>
<View android:layout_height="1px" android:background="#FFFFFF"
android:layout_width="fill_parent"></View>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:id="@+id/TextView01"
android:layout_marginLeft="10px" android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content" android:layout_height="wrap_content">
</TextView>
<TextView android:id="@+id/TextView02" android:layout_width="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_marginLeft="10px" android:layout_height="wrap_content">
</TextView>
<View android:layout_height="1px" android:background="#FFFFFF"
android:layout_width="fill_parent"></View>
</LinearLayout>
第三步：主页面使用控件并为其设置数据
- XML如下：<!--<br/ /> <br/ /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br/ /> http://www.CodeHighlighter.com/<br/ /> <br/ /> --><com.terry.widget.LinearLayoutForListView
android:orientation="vertical" android:layout_width="450px"
android:layout_height="fill_parent" android:id="@+id/ListView01">
</com.terry.widget.LinearLayoutForListView> - 加载数据如下：<!--<br/ /> <br/ /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br/ /> http://www.CodeHighlighter.com/<br/ /> <br/ /> -->lv = (LinearLayoutForListView) findViewById(R.id.ListView01);
for (int i =0; i <10; i++) {
HashMap<String, Object> map =new HashMap<String, Object>();
map.put("key_name", "name"+ i);
map.put("value_name", "value"+ i);
list.add(map);
}
final AdapterForLinearLayout Layoutadpater =new AdapterForLinearLayout(
this, list, R.layout.test, new String[] { "key_name",
"value_name" }, newint[] { R.id.TextView01,
R.id.TextView02 }); - 事件操作，并通过下标得到数据源：<!--<br/ /> <br/ /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br/ /> http://www.CodeHighlighter.com/<br/ /> <br/ /> -->lv.setOnclickLinstener(new OnClickListener() {
@Override
publicvoid onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(
BlueToothActivity.this,
Layoutadpater.get(Integer.parseInt(v.getTag()
.toString()), "key_name"), 1000).show();
}
});
lv.setAdapter(Layoutadpater);
Tip：get方法是在Layoutadpater 封装的一个通过下标获取相应数据的方法请参考上文。
至此完成。有碰到这个问题的朋友可以试试。
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