在这篇文章中，我们将为您详细介绍android–线性布局中的两个ListView的内容，并且讨论关于android线性布局两种形式的相关问题。此外，我们还会涉及一些关于AndroidListView扩
在这篇文章中，我们将为您详细介绍android – 线性布局中的两个ListView的内容，并且讨论关于android线性布局两种形式的相关问题。此外，我们还会涉及一些关于Android ListView 扩展 DragSortListView、Android ListView多布局、android – listfragment中的多个listview、android – R.layout.listview与R.id.listview相同的知识，以帮助您更全面地了解这个主题。
本文目录一览：- android – 线性布局中的两个ListView（android线性布局两种形式）
- Android ListView 扩展 DragSortListView
- Android ListView多布局
- android – listfragment中的多个listview
- android – R.layout.listview与R.id.listview相同
android – 线性布局中的两个ListView（android线性布局两种形式）
PLease帮助我在线性布局中垂直放置两个列表视图的布局.问题是如果list1拥有的数据多于list2不可见且不可滚动,则使用scollview不是解决方案.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/backrepeat"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/shape_calendar_top"
android:orientation="horizontal" >
<ImageView
android:id="@+id/prevMonth"
android:layout_width="50dp"
android:layout_height="55dp"
android:src="@drawable/button_events_prevIoUs" >
</ImageView>
<TextView
android:id="@+id/currentMonth"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_weight="0.6"
android:gravity="center_vertical|center_horizontal"
android:text="Janauary"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#d458b1"
android:text>
</TextView>
<ImageView
android:id="@+id/nextMonth"
android:layout_width="50dp"
android:layout_height="55dp"
android:src="@drawable/button_events_next" />
</LinearLayout>
<TextView
android:id="@+id/direction_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_marginTop="10dp"
android:background="#DA81F5"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:text="PRESS RELEASES"
android:textColor="#FFFFFF"
android:textSize="13dip" />
<ListView
android:id="@+id/eventsList"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/direction_label"
android:background="#ffffff" >
</ListView>
<TextView
android:id="@+id/direction_label1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:background="#DA81F5"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:text="SPEECHES"
android:textColor="#FFFFFF"
android:textSize="13dip" />
<ListView
android:id="@+id/eventsList1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/direction_label1"
android:background="#ffffff" >
</ListView>
<TextView
android:id="@+id/empty_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:text=""
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
如果我使用scrollview,那么它只包含第一行的listview.
请提出建议.
编辑：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/backrepeat"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/shape_calendar_top"
android:orientation="horizontal" >
<ImageView
android:id="@+id/prevMonth"
android:layout_width="50dp"
android:layout_height="55dp"
android:src="@drawable/button_events_prevIoUs" >
</ImageView>
<TextView
android:id="@+id/currentMonth"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_weight="0.6"
android:gravity="center_vertical|center_horizontal"
android:text="Janauary"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#d458b1"
android:text>
</TextView>
<ImageView
android:id="@+id/nextMonth"
android:layout_width="50dp"
android:layout_height="55dp"
android:src="@drawable/button_events_next" />
</LinearLayout>
<TextView
android:id="@+id/direction_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_marginTop="10dp"
android:background="#DA81F5"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:text="PRESS RELEASES"
android:textColor="#FFFFFF"
android:textSize="13dip" />
<ListView
android:id="@+id/eventsList"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:layout_below="@+id/direction_label"
android:background="#ffffff" >
</ListView>
<TextView
android:id="@+id/direction_label1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:background="#DA81F5"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:text="SPEECHES"
android:textColor="#FFFFFF"
android:textSize="13dip" />
<ListView
android:id="@+id/eventsList1"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:layout_below="@+id/direction_label1"
android:background="#ffffff" >
</ListView>
<TextView
android:id="@+id/empty_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:text=""
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
如果我使用它,没有显示任何内容:(
ASMI
编辑：两个列表的代码：
{
arrayofWebData.add(cn);
listadapter = new SelectArralAdapter(getActivity(),arrayofWebData);
List_events.setAdapter(listadapter);
}
对于第二个ListView,它如下：
if ((year == event_year) && (event_month == month))
{
arrayofWebDataPress.add(cn);
listadapter_press = new SelectArralAdapter_Press(getActivity(),arrayofWebDataPress);
List_events_press.setAdapter(listadapter_press);
i++;
}
两个ListView的数组适配器：
class SelectArralAdapter_Press extends ArrayAdapter<PressDB> {
private LayoutInflater inflater;
public SelectArralAdapter_Press(Context context,ArrayList<PressDB> arrayofWebDataPress) {
super(context,R.layout.speech_list_item,R.id.event_title,arrayofWebDataPress);
inflater = LayoutInflater.from(context);
}
@Override
public View getView(int position,View convertView,ViewGroup parent) {
ViewHolder_Press holder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.speech_list_item,null);
holder = new ViewHolder_Press(convertView);
convertView.setTag(holder);
} else {
holder = (ViewHolder_Press) convertView.getTag();
}
holder.populateFrom(arrayofWebDataPress.get(position));
return (convertView);
}
}
class ViewHolder_Press{
public TextView event_name = null;
public TextView event_date = null;
public ViewHolder_Press(View row) {
event_name = (TextView) row.findViewById(R.id.event_title);
event_date = (TextView) row.findViewById(R.id.event_date_time);
}
void populateFrom(PressDB eventsMainDB) {
event_name.setText(eventsMainDB.press_name);
event_date.setText(eventsMainDB.press_date + " ");
}
}
对于第二个Adaper：
class SelectArralAdapter extends ArrayAdapter<SpeechDB> {
private LayoutInflater inflater;
public SelectArralAdapter(Context context,ArrayList<SpeechDB> arrayofWebData) {
super(context,arrayofWebData);
inflater = LayoutInflater.from(context);
}
@Override
public View getView(int position,ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.speech_list_item,null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.populateFrom(arrayofWebData.get(position));
return (convertView);
}
}
class ViewHolder {
public TextView event_name = null;
public TextView event_date = null;
public ViewHolder(View row) {
event_name = (TextView) row.findViewById(R.id.event_title);
event_date = (TextView) row.findViewById(R.id.event_date_time);
}
void populateFrom(SpeechDB eventsMainDB) {
event_name.setText(eventsMainDB.speech_name);
event_date.setText(eventsMainDB.speech_date + " ");
}
}
解决方法
试试这个.
如果你想使用xml设计,那么你必须通过使用权重(这是最优选的)或通过在dp中给出修复大小来给出修复大小.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/backrepeat"
android:weightSum="1"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/shape_calendar_top"
android:orientation="horizontal" >
<ImageView
android:id="@+id/prevMonth"
android:layout_width="50dp"
android:layout_height="55dp"
android:src="@drawable/button_events_prevIoUs" >
</ImageView>
<TextView
android:id="@+id/currentMonth"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_weight="0.6"
android:gravity="center_vertical|center_horizontal"
android:text="Janauary"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#d458b1"
android:text>
</TextView>
<ImageView
android:id="@+id/nextMonth"
android:layout_width="50dp"
android:layout_height="55dp"
android:src="@drawable/button_events_next" />
</LinearLayout>
<TextView
android:id="@+id/direction_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_marginTop="10dp"
android:background="#DA81F5"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:text="PRESS RELEASES"
android:textColor="#FFFFFF"
android:textSize="13dip" />
<ListView
android:id="@+id/eventsList"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="0.5"
android:layout_below="@+id/direction_label"
android:background="#ffffff" >
</ListView>
<TextView
android:id="@+id/direction_label1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:background="#DA81F5"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:text="SPEECHES"
android:textColor="#FFFFFF"
android:textSize="13dip" />
<ListView
android:id="@+id/eventsList1"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="0.5"
android:layout_below="@+id/direction_label1"
android:background="#ffffff" >
</ListView>
<TextView
android:id="@+id/empty_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:text=""
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
我正在设计时获得这个屏幕.
Android ListView 扩展 DragSortListView
DragSortListView（DSLV）是 Android ListView 的一个扩展，支持拖拽排序和左右滑动删除功能。重写了 TouchInterceptor（TI）类来提供更加优美的拖拽动画效果。
DSLV 主要特性：
完美的拖拽支持；
在拖动时提供更平滑的滚动列表滚动；
支持每个 ListItem 高度的多样性
公开 startDrag () 和 stopDrag () 方法；
有公开的接口可以自定义拖动的 View。
DragSortListView 适用于带有任何优先级的列表：收藏夹、播放列表及清单等，算得上是目前 Android 开源实现拖动排序操作最完美的方案。
(简介来自:http://www.csdn.net/article/2013-05-06/2815145-Android-open-source-projects-two)
更多 http://www.oschina.net/code/snippet_219356_18991
Android ListView多布局
使用listview多布局会出现一点问题：
由于多个item布局给单一的item布局是不一样的，使用起来，contentview的复用会出现问题。
避免出现问题的有这几个方法：
1.重写 getViewTypeCount() – 该方法返回多少个不同的布局
2.重写 getItemViewType(int) – 根据position返回相应的Item. type的值必须从0开始
3.根据view item的类型，在getView中创建正确的convertView
public class MyAdapter extends BaseAdapter {
Context mContext;
LinearLayout linearLayout = null;
LayoutInflater inflater;
TextView tex;
final int VIEW_TYPE = 3;
final int TYPE_1 = 0;
final int TYPE_2 = 1;
final int TYPE_3 = 2;
public MyAdapter(Context context) {
mContext = context;
inflater = LayoutInflater.from(mContext);
}
@Override
public int getCount() {
return listString.size();
}
//每个convert view都会调用此方法，获得当前所需要的view样式
@Override
public int getItemViewType(int position) {
//根据具体的ITME类型返回
return type;
}
// 返回三个不同的布局
@Override
public int getViewTypeCount() {
return 3;
}
@Override
public Object getItem(int arg0) {
return listString.get(arg0);
}
@Override
public long getItemId(int position) {
return position;
}
// 创建正确的contentview复用
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
viewHolder1 holder1 = null;
viewHolder2 holder2 = null;
viewHolder3 holder3 = null;
int type = getItemViewType(position);
// 无convertView，需要new出各个控件
if (convertView == null) {
Log.e("convertView = ", " NULL");
// 按当前所需的样式，确定new的布局
switch (type) {
case TYPE_1:
convertView = inflater.inflate(R.layout.listitem1, parent, false);
holder1 = new viewHolder1();
holder1.textView = (TextView) convertView.findViewById(R.id.textview1);
holder1.checkBox = (CheckBox) convertView.findViewById(R.id.checkbox);
Log.e("convertView = ", "NULL TYPE_1");
convertView.setTag(holder1);
break;
case TYPE_2:
convertView = inflater.inflate(R.layout.listitem2, parent, false);
holder2 = new viewHolder2();
holder2.textView = (TextView) convertView.findViewById(R.id.textview2);
Log.e("convertView = ", "NULL TYPE_2");
convertView.setTag(holder2);
break;
case TYPE_3:
convertView = inflater.inflate(R.layout.listitem3, parent, false);
holder3 = new viewHolder3();
holder3.textView = (TextView) convertView.findViewById(R.id.textview3);
holder3.imageView = (ImageView) convertView.findViewById(R.id.imageview);
Log.e("convertView = ", "NULL TYPE_3");
convertView.setTag(holder3);
break;
}
} else {
// 有convertView，按样式，取得不用的布局
switch (type) {
case TYPE_1:
holder1 = (viewHolder1) convertView.getTag();
Log.e("convertView !!!!!!= ", "NULL TYPE_1");
break;
case TYPE_2:
holder2 = (viewHolder2) convertView.getTag();
Log.e("convertView !!!!!!= ", "NULL TYPE_2");
break;
case TYPE_3:
holder3 = (viewHolder3) convertView.getTag();
Log.e("convertView !!!!!!= ", "NULL TYPE_3");
break;
}
}
// 设置资源
switch (type) {
case TYPE_1:
holder1.textView.setText(Integer.toString(position));
holder1.checkBox.setChecked(true);
break;
case TYPE_2:
holder2.textView.setText(Integer.toString(position));
break;
case TYPE_3:
holder3.textView.setText(Integer.toString(position));
holder3.imageView.setBackgroundResource(R.mipmap.ic_launcher);
break;
}
return convertView;
}
}
// 各个布局的控件资源
class viewHolder1 {
CheckBox checkBox;
TextView textView;
}
class viewHolder2 {
TextView textView;
}
class viewHolder3 {
ImageView imageView;
TextView textView;
}下面是四个xml布局：activity_main
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main"
android:layout_width="match_parent" android:layout_height="match_parent"
tools:context="com.example.listview_more.MainActivity">
<ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
></ListView>
</RelativeLayout>
listitem1
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<TextView
android:id="@+id/textview1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="hahaahha"
/>
<CheckBox
android:id="@+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
listitem2
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textview2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="1111111"
/>
</LinearLayout>
listitme3
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<TextView
android:id="@+id/textview3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="888888888"
/>
<ImageView
android:id="@+id/imageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
android – listfragment中的多个listview
请与我裸露,因为我还在学习android和java.
我一直在尝试在列表片段中实现两个列表视图,我已经在我的xml中声明了两个列表视图,并尝试在java文件中设置两个单独的数据集,但是用于第一个lisview的列表视图数据被覆盖第二.
如何使用下面的代码将其指向正确的列表视图？
列表应该去的片段的java：
package com.owais.shopsellswap;
import java.util.ArrayList;
import java.util.HashMap;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.SimpleAdapter;
public class Fragment_My_Profile extends ListFragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View myProfileView = inflater.inflate(R.layout.fragment_my_profile, container, false);
return myProfileView;
}
// Store Arralist as hashmaps for the listview
ArrayList<HashMap<String,String>> list = new ArrayList<HashMap<String,String>>();
ArrayList<HashMap<String,String>> list2 = new ArrayList<HashMap<String,String>>();
// SimpleAdapter (listViewAdapter) links the array to the listview
private SimpleAdapter listViewAdapter;
private SimpleAdapter listViewAdapter2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//HashMap links each line of data to the correct TextView
HashMap<String,String> item;
for(int i=0;i<userInfo.length;i++){
item = new HashMap<String,String>();
item.put( "line1", userInfo[i][0]);
item.put( "line2", userInfo[i][1]);
list.add( item );
}
HashMap<String,String> item2;
for(int i=0;i<ListingsArray.length;i++){
item2 = new HashMap<String,String>();
item2.put( "line1", ListingsArray[i][0]);
item2.put( "line2", ListingsArray[i][1]);
item2.put( "line3", ListingsArray[i][2]);
list2.add( item2 );
}
listViewAdapter = new SimpleAdapter(getActivity(), list,
R.layout.listview_layout_1,
new String[] { "line1","line2" },
new int[] {R.id.line_a, R.id.line_b});
listViewAdapter2 = new SimpleAdapter(getActivity(), list2,
R.layout.listview_layout_3,
new String[] { "line1","line2", "line3" },
new int[] {R.id.line_a1, R.id.line_b1, R.id.line_c1});
setlistadapter(listViewAdapter);
setlistadapter(listViewAdapter2);
}
private String[][] userInfo =
{{"User","Dummy"},
{"Email Address","Dummy@dummymail.com"},
{"User Type","Staff"},
{"Contact Number","07111111111"}};
private String[][] ListingsArray =
{{"audi a3","brand new audi a3 with alloywheels, cd player", "£11000"},
{"HTC One x","brand new android smartphone", "£450"},
{"Acer Laptop","Acer Laptop with windows 7", "£300"},
{"Sunglass","Oakley Sunglasses in great condition", "£100"}};
}
片段的xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@color/lightgrey"
android:text="@string/userInfoHeader"
android:textSize="15sp"
android:text/>
<ListView
android:id="@+id/android:list"
android:layout_width="fill_parent"
android:layout_height="184dp"
android:layout_alignParentLeft="true"
android:layout_below="@+id/textView2" >
</ListView>
<TextView
android:id="@+id/textView3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/android:list"
android:background="@color/lightgrey"
android:text="@string/listingsHeader"
android:textSize="15sp"
android:text/>
<ListView
android:id="@+id/android:list2"
android:layout_width="fill_parent"
android:layout_height="184dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true" >
</ListView>
</RelativeLayout>
列表视图也为每个列表使用自定义布局,如果也需要代码,请告诉我并上传它.
解决方法:
您需要使用每个ListView相应地设置两个适配器….
ListView list = (ListView)findViewById(R.id.list);
ListView list2 = (ListView)findViewById(R.id.list2);
list.setAdapter(...)
list2.setAdapter(...)
…但是你没有两个ListViews在玩.每次调用setAdapter时都使用ListFragment,您将单个ListView设置为给定的内容.您需要将ListFragement调整为Fragment,并在Fragment中有两个单独的ListView,然后按照上面的说明设置每个ListView.
android – R.layout.listview与R.id.listview相同
我是
android编程的新手.我创建了一个ListView及其android：id =“@ id / listView1”
ListView list= (ListView) findViewById(R.id.listView1); ListView list= (ListView) findViewById(R.layout.listView1);
它会引用相同的ListView吗？这两个片段之间有什么区别吗？
解决方法
两者都不同.
R.id.listView1： –
表示在布局(您的XML文件)中声明的View的id为android：id =“@ id / listView1”
和
R.layout.listView1： –
表示格式为res – >的布局文件(xml文件).布局目录
你可以做
ListView list= (ListView) findViewById(R.id.listView1);
因为ListView是View系列.
但你做不到
ListView list= (ListView) findViewById(R.layout.listView1);
今天关于android – 线性布局中的两个ListView和android线性布局两种形式的分享就到这里，希望大家有所收获，若想了解更多关于Android ListView 扩展 DragSortListView、Android ListView多布局、android – listfragment中的多个listview、android – R.layout.listview与R.id.listview相同等相关知识，可以在本站进行查询。
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