在Android中动态添加复选框ID

概述我在我的应用程序中动态添加了一个复选框,我想删除已检查的记录.但是,我没有得到复选框的ID.我怎样才能做到这一点？码：packagecom.my.StudentInfoManagement;publicclassListDataextendsActivity{DataHelperdh;TableLayouttb;CheckBox[]ch=newCheckBo

我在我的应用程序中动态添加了一个复选框,我想删除已检查的记录.但是,我没有得到复选框的ID.我怎样才能做到这一点？

码：

package com.my.StudentInfoManagement;public class ListData extends Activity{    DataHelper dh;    tableLayout tb;    CheckBox[] ch=new CheckBox[50];    EditText ed;    int a[]=new int[50];    int k=0;    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        // Todo auto-generated method stub        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.Listdataxml);        dh=new DataHelper(this);        System.out.println("in List data");        List<String> names= this.dh.selectAll();        ed=(EditText) findVIEwByID(R.ID.ed_ID);        tb=(tableLayout) findVIEwByID(R.ID.table);        int i,j=1;        TextVIEw name1 = null,ID,dob,gender,branch,email,address,mobile;        String name11,ID1 = null,dob1,gender1,branch1,email1,address1,mobile1;        tableRow tr=new tableRow(this);        tr.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));        TextVIEw tv=new TextVIEw(this);        String c = null;        String data[]=new String[50];        int cnt=0;        for(String name:names)            {                       if((!name.equals("-999")))                {                    data[cnt]=name;                    cnt++;                    System.out.println("........."+name);                }                else                {                    cnt=0;                    name1=new TextVIEw(this);                    name1.setText(data[1]+" ");                    ID=new TextVIEw(this);                    ID.setText(data[0]+" ");                    System.out.println("ID is...."+data[0]);                    dob=new TextVIEw(this);                    dob.setText(data[3]+" ");                    gender=new TextVIEw(this);                    gender.setText(data[2]+" ");                    branch=new TextVIEw(this);                    branch.setText(data[4]+" ");                    mobile=new TextVIEw(this);                    mobile.setText(data[5]+" ");                    email=new TextVIEw(this);                    email.setText(data[6]+" ");                    address=new TextVIEw(this);                    address.setText(data[7]+" ");                    tr=new tableRow(this);                    tr.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));                    ch[k]=new CheckBox(this);                    System.out.println("sysout");                    i=Integer.parseInt(data[0]);                    ch[k].setID(i);                    tr.addVIEw(ch[k]);                    a[k++]=i;                    tr.addVIEw(ID);                    tr.addVIEw(name1);                    tr.addVIEw(dob);                    tr.addVIEw(gender);                    tr.addVIEw(branch);                    tr.addVIEw(mobile);                    tr.addVIEw(email);                    tr.addVIEw(address);                tb.addVIEw(tr,new tableLayout.LayoutParams(                         LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));                    j++;                    System.out.println("count"+j);                  }            }    }    public voID delete(VIEw v){        System.out.println("In delete");        int bb=k,ID ;         for (int i=0; i <k; i++)         {             final int j = a[i];             System.out.println("in for loop"+j);                ch[j].setonCheckedchangelistener(new OnCheckedchangelistener() {                    @OverrIDe                    public voID onCheckedChanged(Compoundbutton buttonVIEw,                            boolean isChecked) {                        System.out.println("Checked ID :: " + ch[j].getID());                    }                });            }        System.out.println("00000000000000000..."+ID);        dh.deleteData(ID);    }}

解决方法:

强文本只需要一个全局变量

int chkID = 1001;

然后在动态添加CheckBox时,将其ID设置为

ch.setID(++chkID);

然后在删除CheckBox时,您可以通过使用获得Checked CheckBox的ID

getID()

methhod

见以下演示：

public class ChkBoxesActivity extends Activity {    int chID = 1000;    int chPos = -1;    linearLayout ll;    String[] names = {"Tom", "Dick", "Keanu", "Harry", "Katrina", "Peter", "Julia", "emma"};    CheckBox[] ch;    /** Called when the activity is first created. */    @OverrIDe    public voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.main);        ll = (linearLayout) findVIEwByID(R.ID.ll);        ch = new CheckBox[names.length];        for(int i=0; i<names.length; i++) {            ch[i] = new CheckBox(this);            ch[i].setID(chID++);            System.out.println("CHID :: "+chID);            System.out.println("I :: "+i);            ch[i].setText(names[i]);            ll.addVIEw(ch[i]);        }        for (int i = 0; i < names.length; i++) {            final int j = i;            ch[j].setonCheckedchangelistener(new OnCheckedchangelistener() {                @OverrIDe                public voID onCheckedChanged(Compoundbutton buttonVIEw,                        boolean isChecked) {                    System.out.println("Checked ID :: " + ch[j].getID());                }            });        }    }}

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