应用程序崩溃,当我接触列表视图上点击复选框 [英] App crashes when i click on checkbox in contact listview
问题描述
我是新的Android开发者,我想使用复选框,但尚未当我点击任何复选框应用程序是坠毁我使用的是自定义适配器PLZ任何一个可以帮助我
选择列表视图中的多个联系人我contactList活动是继
公共类CustomAdapter扩展ArrayAdapter<&PHONELIST GT; {
INT inflatr;
上下文ctxt;
ArrayList的<&PHONELIST GT;数据=新的ArrayList<&PHONELIST GT;();
公共CustomAdapter(上下文的背景下,INT资源的ArrayList<&PHONELIST GT; ARR){ 超(背景下,资源,ARR);
this.inflatr =资源;
this.ctxt =背景;
this.data = ARR;
}
@覆盖
众长getItemId(INT位置){
返回的位置;
} @覆盖
公共查看getView(INT位置,查看convertView,父母的ViewGroup){
UserHolder支架=无效;
查看排= convertView;
如果(convertView == NULL)
{
LayoutInflater吹气=((活动)ctxt).getLayoutInflater();
行= inflater.inflate(inflatr,父母,假);
持有人=新UserHolder();
holder.textName =(TextView中)row.findViewById(R.id.lblName);
holder.stnumber =(TextView中)row.findViewById(R.id.mobilenum);
holder.checked =(复选框)row.findViewById(R.id.check);
// holder.btnEdit =(的ImageButton)row.findViewById(R.id.atomPay_removePay);
row.setTag(保持器);
}
其他
{
支架=(UserHolder)row.getTag();
}
PHONELIST DTA = data.get(位置);
holder.checked.setId(位置);
Toast.makeText(ctxtHumayoon zoooommmm+ dta.getNumber(),Toast.LENGTH_SHORT).show(); 的for(int i = 1; I< = 256;我++)
{
holder.textName.setText(dta.getName());
}
对于(INT J = 1; J< = 256; J ++)
{
holder.stnumber.setText(dta.getNumber());
}
// holder.btnEdit.setOnClickListener(新OnClickListener(){
//
// @覆盖
//公共无效的onClick(视图v){
// Toast.makeText(ctxtHumayoon Siddiqueeeeeeeeeeeeeeeeeee+ dta.getName(),Toast.LENGTH_SHORT).show();
//意图moreIntent =新意图(的getContext(),ContactList.class);
//串TNAME = dta.getName();
// moreIntent.putExtra(模板,TNAME);
// v.getContext()startActivity(moreIntent)。
// // ctxt.startActivity(ctxt,ContactList.class);
//}
//});
返回行;
}
@覆盖
公众诠释的getCount(){
// // TODO自动生成方法存根
返回data.size();
} 静态类UserHolder {
TextView的textName;
TextView的textAddress;
TextView的textLocation;
的ImageButton btnEdit;
按钮btnDelete;
TextView的stnumber;
选中复选框;
}
}
我的自定义适配器以下
公共类CustomAdapter扩展ArrayAdapter<&PHONELIST GT; {
INT inflatr;
上下文ctxt;
ArrayList的<&PHONELIST GT;数据=新的ArrayList<&PHONELIST GT;();
公共CustomAdapter(上下文的背景下,INT资源的ArrayList<&PHONELIST GT; ARR){ 超(背景下,资源,ARR);
this.inflatr =资源;
this.ctxt =背景;
this.data = ARR;
}
@覆盖
众长getItemId(INT位置){
返回的位置;
} @覆盖
公共查看getView(INT位置,查看convertView,父母的ViewGroup){
UserHolder支架=无效;
查看排= convertView;
如果(convertView == NULL)
{
LayoutInflater吹气=((活动)ctxt).getLayoutInflater();
行= inflater.inflate(inflatr,父母,假);
持有人=新UserHolder();
holder.textName =(TextView中)row.findViewById(R.id.lblName);
holder.stnumber =(TextView中)row.findViewById(R.id.mobilenum);
holder.checked =(复选框)row.findViewById(R.id.check);
// holder.btnEdit =(的ImageButton)row.findViewById(R.id.atomPay_removePay);
row.setTag(保持器);
}
其他
{
支架=(UserHolder)row.getTag();
}
PHONELIST DTA = data.get(位置);
holder.checked.setId(位置);
Toast.makeText(ctxtHumayoon zoooommmm+ dta.getNumber(),Toast.LENGTH_SHORT).show(); 的for(int i = 1; I< = 256;我++)
{
holder.textName.setText(dta.getName());
}
对于(INT J = 1; J< = 256; J ++)
{
holder.stnumber.setText(dta.getNumber());
}
// holder.btnEdit.setOnClickListener(新OnClickListener(){
//
// @覆盖
//公共无效的onClick(视图v){
// Toast.makeText(ctxtHumayoon Siddiqueeeeeeeeeeeeeeeeeee+ dta.getName(),Toast.LENGTH_SHORT).show();
//意图moreIntent =新意图(的getContext(),ContactList.class);
//串TNAME = dta.getName();
// moreIntent.putExtra(模板,TNAME);
// v.getContext()startActivity(moreIntent)。
// // ctxt.startActivity(ctxt,ContactList.class);
//}
//});
返回行;
}
@覆盖
公众诠释的getCount(){
// // TODO自动生成方法存根
返回data.size();
} 静态类UserHolder {
TextView的textName;
TextView的textAddress;
TextView的textLocation;
的ImageButton btnEdit;
按钮btnDelete;
TextView的stnumber;
选中复选框;
}
}
我PHONELIST类是..
包com.example.sqliteapplication;公共类PHONELIST {
字符串名称;
串号;
公共PHONELIST(串串,串号){
超();
this.name =串;
this.number =号;
}
公共字符串的getName(){
返回名称;
}
公共无效setNumber(串号)
{
this.number =号;
}
公共字符串getNumber()
{
返回数;
}
公共无效setname可以(字符串名称){
this.name =名称;
}}
的列表视图XML布局
<?XML版本=1.0编码=UTF-8&GT?;
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:方向=垂直的android:layout_width =FILL_PARENT
机器人:layout_height =FILL_PARENT
机器人:背景=@布局/ bg_player_header
>
< ListView控件的android:layout_width =match_parent
机器人:分=#FFEEEE
机器人:layout_height =match_parent机器人:ID =@ + ID / lvContacts>< /&的ListView GT;
< / LinearLayout中>
在列表视图中的每一行的XML布局
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
的xmlns:工具=http://schemas.android.com/tools
机器人:layout_width =match_parent
机器人:layout_height =match_parent
机器人:方向=垂直> <的LinearLayout
机器人:ID =@ + ID / player_header_bg
机器人:layout_width =FILL_PARENT
机器人:layout_height =60dip
机器人:背景=@布局/ bg_player_header> < ImageView的
机器人:ID =@ + ID / imageView1
机器人:layout_width =32dip
机器人:layout_height =40dip
机器人:layout_marginTop =10dip
机器人:SRC =@绘制/面>
< / ImageView的>
<的TextView
机器人:ID =@ + ID / lblName
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:layout_marginLeft =15dip
机器人:layout_weight =1
机器人:paddingLeft =5DP
机器人:文字=说明
机器人:文字颜色=#04b3d2
机器人:TEXTSIZE =16DP
机器人:文字样式=大胆/>
<的TextView
机器人:ID =@ + ID / mobilenum
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:layout_marginLeft =15dip
机器人:layout_weight =1
机器人:paddingLeft =5DP
机器人:文字=03455039469
机器人:文字颜色=#04b3d2
机器人:TEXTSIZE =16DP
机器人:文字样式=大胆/> <复选框
机器人:ID =@ + ID /勾选
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =FILL_PARENT
机器人:layout_alignParentRight =真
机器人:可聚焦=假
机器人:SRC =@绘制/形状
/>
< / LinearLayout中>< / LinearLayout中>
错误是继....
13 05-12:30:32.432:E / AndroidRuntime(25447):致命异常:主要
05-12 13:30:32.432:E / AndroidRuntime(25447):$ android.content.res.Resources NotFoundException:无法找到资源编号为0x4
05-12 13:30:32.432:E / AndroidRuntime(25447):在android.content.res.Resources.getResourceEntryName(Resources.java:1756)
05-12 13:30:32.432:E / AndroidRuntime(25447):在android.view.View $ 1.onClick(View.java:3590)
05-12 13:30:32.432:E / AndroidRuntime(25447):在android.view.View.performClick(View.java:4211)
05-12 13:30:32.432:E / AndroidRuntime(25447):在android.widget.CompoundButton.performClick(CompoundButton.java:100)
05-12 13:30:32.432:E / AndroidRuntime(25447):在android.view.View $ PerformClick.run(View.java:17446)
05-12 13:30:32.432:E / AndroidRuntime(25447):在android.os.Handler.handleCallback(Handler.java:725)
05-12 13:30:32.432:E / AndroidRuntime(25447):在android.os.Handler.dispatchMessage(Handler.java:92)
05-12 13:30:32.432:E / AndroidRuntime(25447):在android.os.Looper.loop(Looper.java:153)
05-12 13:30:32.432:E / AndroidRuntime(25447):在android.app.ActivityThread.main(ActivityThread.java:5299)
05-12 13:30:32.432:E / AndroidRuntime(25447):在java.lang.reflect.Method.invokeNative(本机方法)
05-12 13:30:32.432:E / AndroidRuntime(25447):在java.lang.reflect.Method.invoke(Method.java:511)
05-12 13:30:32.432:E / AndroidRuntime(25447):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:833)
05-12 13:30:32.432:E / AndroidRuntime(25447):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
05-12 13:30:32.432:E / AndroidRuntime(25447):在dalvik.system.NativeStart.main(本机方法)
为什么你在code改为复选框
的ID?
holder.checked.setId(位置);
如果你想在你的复选框位置
使用标签
而不是 ID
您可以使用:
holder.checked.setTag(位置);
和获取是:
INT位置=(整数)holder.checked.getTag();
如您更改$ C $复选框编号C你的资源$ NotFoundException 因为你改变复选框的编号1,2,3,4,...这不保存在R档,
//更新
多个选择项发生,因为<一href=\"http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works\">listviews-recycling,为解决这一问题,你需要保存在一个地方选择的位置或者可以这样做:
添加以下属性到 PHONELIST
布尔isSelected;
创建getter和setter方法的。
公共布尔getIsSelected()
{
返回isSelected;
}
公共无效setIsSelected(布尔isSelected)
{
this.isSelected = isSelected;
}
然后在code在 getView
使用方法:
holder.checked.setChecked(dta.getIsSelected());
和 isSelected
的复选框变化值的点击 isSelected
:
所以你的code必须是这样的:
holder.checked.setOnClickListener(本);
在的onClick
方法:
data.get((整数)v.getTag())setIsSelected(data.get((整数)v.getTag())getIsSelected!)。
notifyDataSetChanged();
I am new android Developer and i want to select multiple contacts in list view using check box but yet when i click any check box app is crashed I am Using a custom Adapter plz any one can help me
my contactList ACtivity is following
public class CustomAdapter extends ArrayAdapter<PhoneList> {
int inflatr;
Context ctxt;
ArrayList<PhoneList> data=new ArrayList<PhoneList>();
public CustomAdapter(Context context, int resource, ArrayList<PhoneList> arr) {
super(context, resource, arr);
this.inflatr = resource;
this.ctxt = context;
this.data= arr;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
UserHolder holder = null;
View row = convertView;
if(convertView==null)
{
LayoutInflater inflater = ((Activity) ctxt).getLayoutInflater();
row = inflater.inflate(inflatr, parent, false);
holder = new UserHolder();
holder.textName=(TextView)row.findViewById(R.id.lblName);
holder.stnumber=(TextView)row.findViewById(R.id.mobilenum);
holder.checked=(CheckBox)row.findViewById(R.id.check);
// holder.btnEdit = (ImageButton) row.findViewById(R.id.atomPay_removePay);
row.setTag(holder);
}
else
{
holder = (UserHolder) row.getTag();
}
PhoneList dta=data.get(position);
holder.checked.setId(position);
Toast.makeText(ctxt, "Humayoon zoooommmm"+dta.getNumber(), Toast.LENGTH_SHORT).show();
for(int i=1; i<=256; i++)
{
holder.textName.setText(dta.getName());
}
for(int j=1; j<=256; j++)
{
holder.stnumber.setText(dta.getNumber());
}
// holder.btnEdit.setOnClickListener(new OnClickListener() {
//
// @Override
// public void onClick(View v) {
// Toast.makeText(ctxt, "Humayoon Siddiqueeeeeeeeeeeeeeeeeee"+dta.getName(), Toast.LENGTH_SHORT).show();
// Intent moreIntent=new Intent(getContext(),ContactList.class);
// String tName=dta.getName();
// moreIntent.putExtra("Template",tName);
// v.getContext().startActivity(moreIntent);
// // ctxt.startActivity(ctxt,ContactList.class);
// }
// });
return row;
}
@Override
public int getCount() {
// // TODO Auto-generated method stub
return data.size();
}
static class UserHolder {
TextView textName;
TextView textAddress;
TextView textLocation;
ImageButton btnEdit;
Button btnDelete;
TextView stnumber;
CheckBox checked;
}
}
my custom adapter is following
public class CustomAdapter extends ArrayAdapter<PhoneList> {
int inflatr;
Context ctxt;
ArrayList<PhoneList> data=new ArrayList<PhoneList>();
public CustomAdapter(Context context, int resource, ArrayList<PhoneList> arr) {
super(context, resource, arr);
this.inflatr = resource;
this.ctxt = context;
this.data= arr;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
UserHolder holder = null;
View row = convertView;
if(convertView==null)
{
LayoutInflater inflater = ((Activity) ctxt).getLayoutInflater();
row = inflater.inflate(inflatr, parent, false);
holder = new UserHolder();
holder.textName=(TextView)row.findViewById(R.id.lblName);
holder.stnumber=(TextView)row.findViewById(R.id.mobilenum);
holder.checked=(CheckBox)row.findViewById(R.id.check);
// holder.btnEdit = (ImageButton) row.findViewById(R.id.atomPay_removePay);
row.setTag(holder);
}
else
{
holder = (UserHolder) row.getTag();
}
PhoneList dta=data.get(position);
holder.checked.setId(position);
Toast.makeText(ctxt, "Humayoon zoooommmm"+dta.getNumber(), Toast.LENGTH_SHORT).show();
for(int i=1; i<=256; i++)
{
holder.textName.setText(dta.getName());
}
for(int j=1; j<=256; j++)
{
holder.stnumber.setText(dta.getNumber());
}
// holder.btnEdit.setOnClickListener(new OnClickListener() {
//
// @Override
// public void onClick(View v) {
// Toast.makeText(ctxt, "Humayoon Siddiqueeeeeeeeeeeeeeeeeee"+dta.getName(), Toast.LENGTH_SHORT).show();
// Intent moreIntent=new Intent(getContext(),ContactList.class);
// String tName=dta.getName();
// moreIntent.putExtra("Template",tName);
// v.getContext().startActivity(moreIntent);
// // ctxt.startActivity(ctxt,ContactList.class);
// }
// });
return row;
}
@Override
public int getCount() {
// // TODO Auto-generated method stub
return data.size();
}
static class UserHolder {
TextView textName;
TextView textAddress;
TextView textLocation;
ImageButton btnEdit;
Button btnDelete;
TextView stnumber;
CheckBox checked;
}
}
My phoneList Class is ..
package com.example.sqliteapplication;
public class PhoneList {
String name;
String number;
public PhoneList(String string,String number) {
super();
this.name = string;
this.number=number;
}
public String getName() {
return name;
}
public void setNumber(String number)
{
this.number=number;
}
public String getNumber()
{
return number;
}
public void setName(String name) {
this.name = name;
}
}
xml layout of List View
<?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"
android:background="@layout/bg_player_header"
>
<ListView android:layout_width="match_parent"
android:divider="#FFEEEE"
android:layout_height="match_parent" android:id="@+id/lvContacts"></ListView>
</LinearLayout>
xml layout of each row in a List View
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/player_header_bg"
android:layout_width="fill_parent"
android:layout_height="60dip"
android:background="@layout/bg_player_header" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="32dip"
android:layout_height="40dip"
android:layout_marginTop="10dip"
android:src="@drawable/face" >
</ImageView>
<TextView
android:id="@+id/lblName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dip"
android:layout_weight="1"
android:paddingLeft="5dp"
android:text="Description"
android:textColor="#04b3d2"
android:textSize="16dp"
android:textStyle="bold" />
<TextView
android:id="@+id/mobilenum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dip"
android:layout_weight="1"
android:paddingLeft="5dp"
android:text="03455039469"
android:textColor="#04b3d2"
android:textSize="16dp"
android:textStyle="bold" />
<CheckBox
android:id="@+id/check"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignParentRight="true"
android:focusable="false"
android:src="@drawable/shape"
/>
</LinearLayout>
</LinearLayout>
Error is following....
05-12 13:30:32.432: E/AndroidRuntime(25447): FATAL EXCEPTION: main
05-12 13:30:32.432: E/AndroidRuntime(25447): android.content.res.Resources$NotFoundException: Unable to find resource ID #0x4
05-12 13:30:32.432: E/AndroidRuntime(25447): at android.content.res.Resources.getResourceEntryName(Resources.java:1756)
05-12 13:30:32.432: E/AndroidRuntime(25447): at android.view.View$1.onClick(View.java:3590)
05-12 13:30:32.432: E/AndroidRuntime(25447): at android.view.View.performClick(View.java:4211)
05-12 13:30:32.432: E/AndroidRuntime(25447): at android.widget.CompoundButton.performClick(CompoundButton.java:100)
05-12 13:30:32.432: E/AndroidRuntime(25447): at android.view.View$PerformClick.run(View.java:17446)
05-12 13:30:32.432: E/AndroidRuntime(25447): at android.os.Handler.handleCallback(Handler.java:725)
05-12 13:30:32.432: E/AndroidRuntime(25447): at android.os.Handler.dispatchMessage(Handler.java:92)
05-12 13:30:32.432: E/AndroidRuntime(25447): at android.os.Looper.loop(Looper.java:153)
05-12 13:30:32.432: E/AndroidRuntime(25447): at android.app.ActivityThread.main(ActivityThread.java:5299)
05-12 13:30:32.432: E/AndroidRuntime(25447): at java.lang.reflect.Method.invokeNative(Native Method)
05-12 13:30:32.432: E/AndroidRuntime(25447): at java.lang.reflect.Method.invoke(Method.java:511)
05-12 13:30:32.432: E/AndroidRuntime(25447): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
05-12 13:30:32.432: E/AndroidRuntime(25447): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
05-12 13:30:32.432: E/AndroidRuntime(25447): at dalvik.system.NativeStart.main(Native Method)
why you changed id of checkbox
in your code?
holder.checked.setId(position);
if you want keep position in your checkbox
use Tag
instead of id
you can use:
holder.checked.setTag(position);
and for getting that:
int position = (Integer)holder.checked.getTag();
as you change id of checkbox in your code you get Resources$NotFoundException because you changed id of checkbox to 1,2,3,4,... and this not saved in R file,
// UPDATE
multiple select item happened because listviews-recycling, for solving this issue you need save selected position in one place or you can do:
add following property to PhoneList
boolean isSelected;
create getter and setter method for that.
public boolean getIsSelected()
{
return isSelected;
}
public void setIsSelected(boolean isSelected)
{
this.isSelected = isSelected;
}
then in your code in getView
method use:
holder.checked.setChecked(dta.getIsSelected());
and in click of checkbox change value of isSelected
to !isSelected
:
so your code must be like:
holder.checked.setOnClickListener(this);
in onClick
method:
data.get((Integer)v.getTag()).setIsSelected(!data.get((Integer)v.getTag()).getIsSelected);
notifyDataSetChanged();
这篇关于应用程序崩溃,当我接触列表视图上点击复选框的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!