Hello Friends我正在使用包含textview和radio组的listview。 现在我需要在Listview上使用上下文菜单。当我没有使用Radio Group它工作但现在当我在我的列表行中添加Radio Buttons时它不可点击。 谁能给我解决方案？
这是我的主要布局
<?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:background="#FFFFFF"
android:orientation="vertical" >
<include layout="@layout/search_bar" />
<ListView
android:id="@+id/listview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="@+id/rel_my_search"
android:cacheColorHint="#00000000"
android:choiceMode="singleChoice"
android:clickable="true"
android:fastScrollEnabled="true" >
</ListView>
</RelativeLayout>
这是listview的一行
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/relativelay"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/list_bg" >
<TextView
android:id="@+id/tvname"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:maxLines="1"
android:padding="10dp"
android:textColor="#000000"
android:textSize="18dp"
android:textStyle="bold" />
<RadioGroup
android:id="@+id/radioGroup1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:orientation="horizontal" >
<RadioButton
android:id="@+id/check_present"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginRight="20dp"
android:onClick="onPresentClick" />
<RadioButton
android:id="@+id/check_absent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="@id/check_present"
android:onClick="onPresentClick" />
</RadioGroup>
</RelativeLayout>
这是我完成的代码
public class MainActivity extends Activity implements TextWatcher,
OnItemClickListener/*, OnItemLongClickListener*/ {
ListView listView;
List<Items> items;
List<Items> filterArray = new ArrayList<Items>();
ArrayList<Item> itemsSection = new ArrayList<Item>();
NamesAdapter objAdapter = null;
EditText mySearch;
String searchString;
AlertDialog alert = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
listView = (ListView) findViewById(R.id.listview);
listView.setOnItemClickListener(this);
//listView.setOnItemLongClickListener(this);
registerForContextMenu(listView);
mySearch = (EditText) findViewById(R.id.input_search_query);
mySearch.addTextChangedListener(this);
// XML Parsing Using AsyncTask...
if (isNetworkAvailable()) {
new MyTask().execute();
} else {
showToast("No Netwrok Connection!!!");
this.finish();
}
}
public void onPresentClick(View view) {
switch (view.getId()) {
case R.id.check_present:
Toast.makeText(MainActivity.this, "Student is Present",
Toast.LENGTH_LONG).show();
break;
case R.id.check_absent:
Toast.makeText(MainActivity.this, "Student is Absent",
Toast.LENGTH_LONG).show();
break;
}
}
// My AsyncTask start...
class MyTask extends AsyncTask<Void, Void, Void> {
ProgressDialog pDialog;
@Override
protected void onPreExecute() {
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Loading...");
pDialog.show();
super.onPreExecute();
}
@Override
protected Void doInBackground(Void... params) {
items = new NamesParser().getData(rssFeed);
return null;
}
@Override
protected void onPostExecute(Void result) {
if (null != pDialog && pDialog.isShowing()) {
pDialog.dismiss();
}
if (null == items || items.size() == 0) {
showToast("No data found from web!!!");
MainActivity.this.finish();
} else {
setAdapterToListview(items);
}
super.onPostExecute(result);
}
}
// Textwatcher's ovveride methods
@Override
public void afterTextChanged(Editable s) {
filterArray.clear();
searchString = mySearch.getText().toString().trim()
.replaceAll("\\s", "");
if (items.size() > 0 && searchString.length() > 0) {
for (Items name : items) {
if (name.getName().toLowerCase()
.startsWith(searchString.toLowerCase())) {
filterArray.add(name);
}
}
setAdapterToListview(filterArray);
} else {
filterArray.clear();
setAdapterToListview(items);
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
// Here Data is Filtered!!!
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
// setAdapter Here....
public void setAdapterToListview(List<Items> listForAdapter) {
itemsSection.clear();
if (null != listForAdapter && listForAdapter.size() != 0) {
Collections.sort(listForAdapter);
char checkChar = ' ';
for (int index = 0; index < listForAdapter.size(); index++) {
Items objItem = (Items) listForAdapter.get(index);
char firstChar = objItem.getName().charAt(0);
if (' ' != checkChar) {
if (checkChar != firstChar) {
ItemsSections objSectionItem = new ItemsSections();
objSectionItem.setSectionLetter(firstChar);
itemsSection.add(objSectionItem);
}
} else {
ItemsSections objSectionItem = new ItemsSections();
objSectionItem.setSectionLetter(firstChar);
itemsSection.add(objSectionItem);
}
checkChar = firstChar;
itemsSection.add(objItem);
}
} else {
showAlertView();
}
if (null == objAdapter) {
objAdapter = new NamesAdapter(MainActivity.this, itemsSection);
listView.setAdapter(objAdapter);
registerForContextMenu(listView);
} else {
objAdapter.notifyDataSetChanged();
}
}
// Toast is here...
private void showToast(String msg) {
Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
}
// OnListClick,Get Name...
/*@Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
deleteStudentAlert(id);
return false;
}*/
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Item item = itemsSection.get(position);
if (view.getTag().getClass().getSimpleName().equals("ViewHolderName")) {
Items objSchoolname = (Items) item;
showToast(objSchoolname.getName());
} else {
ItemsSections objSectionsName = (ItemsSections) item;
showToast("Section :: "
+ String.valueOf(objSectionsName.getSectionLetter()));
}
}
// Check Internet Connection!!!
public boolean isNetworkAvailable() {
ConnectivityManager connectivity = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity == null) {
return false;
} else {
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null) {
for (int i = 0; i < info.length; i++) {
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
}
return false;
}
// OnBackPressed...
@Override
public void onBackPressed() {
AlertDialog alert_back = new AlertDialog.Builder(this).create();
alert_back.setTitle("Quit?");
alert_back.setMessage("Are you sure want to Quit?");
alert_back.setButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alert_back.setButton2("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
MainActivity.this.finish();
}
});
alert_back.show();
}
private void showAlertView() {
if (null == alert)
alert = new AlertDialog.Builder(this).create();
if (alert.isShowing()) {
return;
}
alert.setTitle("Not Found!!!");
alert.setMessage("Can not find name Like '" + searchString + "'");
alert.setButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alert.show();
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
// TODO Auto-generated method stub
if (v.getId() == R.id.listview) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
menu.setHeaderTitle("Details");
menu.add(0, 0, 0, "Delete Student");
menu.add(1, 1, 1, "Add Student Below Current Student");
menu.add(2, 2, 2, "Get Details of this Student");
menu.add(3, 3, 3, "Bonafied or Marksheet of This Student");
}
super.onCreateContextMenu(menu, v, menuInfo);
}
@Override
public boolean onContextItemSelected(MenuItem item) {
// TODO Auto-generated method stub
if (item.getItemId() == 0) {
deleteStudentAlert(0);
} else if (item.getItemId() == 1) {
deleteStudentAlert(1);
} else if (item.getItemId() == 2) {
deleteStudentAlert(2);
} else if (item.getItemId() == 3) {
deleteStudentAlert(3);
}
return super.onContextItemSelected(item);
}
private void deleteStudentAlert(long id) {
// TODO Auto-generated method stub
Log.v("Reaching ", "Into Delete???");
AlertDialog alertDialogialog = new AlertDialog.Builder(
MainActivity.this).create();
alertDialogialog.setTitle("");
alertDialogialog.setMessage("");
alertDialogialog.setButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Toast.makeText(MainActivity.this, "Check working of ok",
Toast.LENGTH_LONG).show();
final Dialog pwdDialog = new Dialog(MainActivity.this);
pwdDialog.setContentView(R.layout.password_dialog_layout);
pwdDialog.show();
pwdDialog.setTitle("Are You Sure?");
Button ok = (Button) pwdDialog.findViewById(R.id.btnPwdOk);
ok.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
pwdDialog.dismiss();
}
});
pwdDialog.show();
}
});
alertDialogialog.setButton("Cancel",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Toast.makeText(MainActivity.this,
"Check working of Cancel", Toast.LENGTH_LONG)
.show();
}
});
}
}
上下文菜单工作正常，如果我删除单选按钮，但我也需要单选按钮.. 在此先感谢....
答案 0 :(得分：0)