如何获得自定义视图列表中选中的行 [英] How to obtain the checked rows in a custom view list
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问题描述
任何一个可以告诉我怎样才能获得一个自定义视图列表中选中行的值？例如我的code有一个自定义视图列表中有两个文本视图和一个复选框。当用户选中一行，并点击提交按钮，我需要检索信息两个TextView的。
Can any one tell me how can i obtain the values of the checked rows in a custom view list? For example my code has a custom view list with two text view and a checkbox. Whenever the user checks a row and hits the submit button i need to retrieve the information in the two textview..
在code是
public class contacts extends Activity implements OnItemClickListener {
static final String TAG = "contacts";
ArrayList<String> contactName = new ArrayList<String>();
ArrayList<String> contactNumber = new ArrayList<String>();
MyAdapter myAdapter;
Button AddNumber;
String numberIntent;
View vi;
ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listview);
getAllContacts(this.getContentResolver());
listView = (ListView) findViewById(R.id.lists);
myAdapter = new MyAdapter();
listView.setAdapter(myAdapter);
listView.setItemsCanFocus(false);
listView.setTextFilterEnabled(true);
// adding
AddNumber = (Button) findViewById(R.id.AddNumbers);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Object listItem = listView.getItemAtPosition(0);
Log.d(TAG,"listView listener" + listItem);
}
});
AddNumber.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
StringBuilder checkedContacts = new StringBuilder();
Log.d(TAG, "onClick" + myAdapter.mCheckStates.size());
for (int i = 0; i < contactName.size(); i++)
{
if (myAdapter.mCheckStates.get(i) == true) {
checkedContacts.append(contactName.get(i).toString());
checkedContacts.append("\n");
} else {
Log.d(TAG, "No OnClick" + contactName.get(i).toString());
}
}
Toast.makeText(contacts.this, checkedContacts,
Toast.LENGTH_LONG).show();
ArrayList<String> checkboxArray = new ArrayList<String>();
myAdapter.mCheckStates = listView.getCheckedItemPositions();
Log.d(TAG, "Sparse" + myAdapter.mCheckStates);
for (int i = 0; i < myAdapter.mCheckStates.size(); i++) {
int position = myAdapter.mCheckStates.keyAt(i);
boolean bool = myAdapter.mCheckStates.valueAt(position);
Log.d(TAG, "Sparse2" + myAdapter.mCheckStates);
}
String[] outputStrArr = new String[checkboxArray.size()];
for (int i = 0; i < checkboxArray.size(); i++) {
outputStrArr[i] = checkboxArray.get(i);
}
}
});
}
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
myAdapter.toggle(arg2);
}
public void getAllContacts(ContentResolver cr) {
Cursor cursor = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null,
null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME
+ " COLLATE LOCALIZED ASC");
while (cursor.moveToNext()) {
String name = cursor
.getString(cursor
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumber = cursor
.getString(cursor
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Log.d(TAG, "getAllContacts" + phoneNumber);
contactName.add(name);
contactNumber.add(phoneNumber);
}
cursor.close();
Intent in = new Intent(this, TrackLogic.class);
in.putExtra("contact", contactName.toArray());
Log.d(TAG, "Intent????" + contactName);
in.putExtra("contact1", contactNumber.toArray());
}
class MyAdapter extends BaseAdapter implements
CompoundButton.OnCheckedChangeListener {
private SparseBooleanArray mCheckStates;
LayoutInflater mInflater;
TextView phoneView, contactView;
CheckBox checkBox;
MyAdapter() {
mCheckStates = new SparseBooleanArray(contactName.size());
mInflater = (LayoutInflater) contacts.this
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
return contactName.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(final int position, View convertView,
ViewGroup parent) {
vi = convertView;
if (convertView == null)
vi = mInflater.inflate(R.layout.row, null);
contactView = (TextView) vi.findViewById(R.id.contact_name);
phoneView = (TextView) vi.findViewById(R.id.phone_number);
checkBox = (CheckBox) vi.findViewById(R.id.checkBox_id);
contactView.setText(contactName.get(position));
phoneView.setText(contactNumber.get(position));
checkBox.setTag(position);
checkBox.setChecked(mCheckStates.get(position, false));
checkBox.setOnCheckedChangeListener(this);
return vi;
}
public boolean isChecked(int position) {
return mCheckStates.get(position, false);
}
public void setChecked(int position, boolean isChecked) {
mCheckStates.put(position, isChecked);
Log.d(TAG, "setChecked");
notifyDataSetChanged();
}
public void toggle(int position) {
setChecked(position, !isChecked(position));
}
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
mCheckStates.put((Integer) buttonView.getTag(), isChecked);
}
}
}
我似乎无法立即弄清楚其真正的流失在我身上。任何帮助是pciated高度AP $ P $ .. 谢谢你。
I cannot seem to figure it out and its a real drain on me now. Any help is highly appreciated.. Thanks.
推荐答案
的https://groups.google.com/forum/?fromgroups#!topic/android-developers/No0LrgJ6q2M
您自定义适配器必须实现 CompoundButton.OnCheckedChangeListener 。使用 SparseBooleanArray 来获取列表中选中的项目。
Your Custom Adapter must implement CompoundButton.OnCheckedChangeListener. Use a SparseBooleanArray to get the checked items in the list.
然后
cb.setChecked(mCheckStates.get(position, false));
cb.setOnCheckedChangeListener(this);
接着用选中状态，设置文本复选框
Then use the checked state to set text to check box
public boolean isChecked(int position) {
return mCheckStates.get(position, false);
}
public void setChecked(int position, boolean isChecked) {
mCheckStates.put(position, isChecked);
}
public void toggle(int position) {
setChecked(position, !isChecked(position));
}
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
// TODO Auto-generated method stub
if(isChecked)
{
buttonView.setText("Hello");
}
else
{
buttonView.setText("");
}
mCheckStates.put((Integer) buttonView.getTag(), isChecked);
}
例如：
public class MainActivity extends Activity implements OnItemClickListener{
List<String> name1 = new ArrayList<String>();
List<String> phno1 = new ArrayList<String>();
MyAdapter ma ;
Button select
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getAllCallLogs(this.getContentResolver());
ListView lv= (ListView) findViewById(R.id.lv);
ma = new MyAdapter();
lv.setAdapter(ma);
lv.setOnItemClickListener(this);
lv.setItemsCanFocus(false);
lv.setTextFilterEnabled(true);
// adding
select = (Button) findViewById(R.id.button1);
select.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v) {
StringBuilder checkedcontacts= new StringBuilder();
System.out.println(".............."+ma.mCheckStates.size());
for(int i = 0; i < name1.size(); i++)
{
if(ma.mCheckStates.get(i)==true)
{
checkedcontacts.append(name1.get(i).toString());
checkedcontacts.append("\n");
}
else
{
System.out.println("..Not Checked......"+name1.get(i).toString());
}
}
Toast.MakeText(MainActivity.this,checkedcontacts,1000).show();
}
});
}
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
// TODO Auto-generated method stub
ma.toggle(arg2);
}
public void getAllCallLogs(ContentResolver cr) {
Cursor phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
while (phones.moveToNext())
{
String name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
System.out.println(".................."+phoneNumber);
name1.add(name);
phno1.add(phoneNumber);
}
phones.close();
}
class MyAdapter extends BaseAdapter implements CompoundButton.OnCheckedChangeListener
{ private SparseBooleanArray mCheckStates;
LayoutInflater mInflater;
TextView tv1,tv;
CheckBox cb;
MyAdapter()
{
mCheckStates = new SparseBooleanArray(name1.size());
mInflater = (LayoutInflater)MainActivity.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return name1.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View vi=convertView;
if(convertView==null)
vi = mInflater.inflate(R.layout.row, null);
TextView tv= (TextView) vi.findViewById(R.id.textView1);
tv1= (TextView) vi.findViewById(R.id.textView2);
cb = (CheckBox) vi.findViewById(R.id.checkBox1);
tv.setText("Name :"+ name1.get(position));
tv1.setText("Phone No :"+ phno1.get(position));
cb.setTag(position);
cb.setChecked(mCheckStates.get(position, false));
cb.setOnCheckedChangeListener(this);
return vi;
}
public boolean isChecked(int position) {
return mCheckStates.get(position, false);
}
public void setChecked(int position, boolean isChecked) {
mCheckStates.put(position, isChecked);
System.out.println("hello...........");
notifyDataSetChanged();
}
public void toggle(int position) {
setChecked(position, !isChecked(position));
}
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
// TODO Auto-generated method stub
mCheckStates.put((Integer) buttonView.getTag(), isChecked);
}
}
}
activity_main.xml
activity_main.xml
<RelativeLayout 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"
tools:context=".MainActivity" >
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/button1"
android:id="@+id/lv"/>
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="Select" />
</RelativeLayout>
row.xml
row.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="15dp"
android:layout_marginTop="34dp"
android:text="TextView" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/checkBox1"
android:layout_alignLeft="@+id/textView1"
android:text="TextView" />
<CheckBox
android:id="@+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/textView1"
android:layout_marginRight="22dp"
android:layout_marginTop="23dp" />
</RelativeLayout>
您可以勾选复选框，然后单击该按钮，底部和检查的项目都显示在祝酒。
You can tick the check box and click the button at the bottom and the checked items are displayed in a toast.
修改上面的按照您的要求。
Modify the above according to your requirements.
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