加入onlongclick监听到alertdialog [英] Add onlongclick listener to an alertdialog
本文介绍了加入onlongclick监听到alertdialog的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个AlertDialog Android中包含来自sqlite的好友列表。当我在列表中点击好友的名字，那哥们叫。我想要做的就是添加一个longclicklistener到列表中还有这样我就可以提示删除列表中的好友。我有有onlclick和onlongclick工作在相同的元素麻烦。有人可以给我一个指针在这里。我一直在与Android的几个月。感谢您的帮助！
私人无效displayBuddyList（字符串区）{
最后弦乐区域2 =区域;
上下文的背景下= getApplicationContext（）;
DH =新DataBaseHelper（上下文）;
名单＆LT;字符串＆GT; bnames = dh.selectBuddies（）;
Log.d（TAG，巴迪名称：+ bnames）;
最后的CharSequence []芽= bnames.toArray（新的CharSequence [bnames.size（））;
//最后的CharSequence []项目= {标记，维克兰特号，欧莱简，丹};
AlertDialog.Builder建设者=新AlertDialog.Builder（本）;
builder.setTitle（选择好友）;
builder.setItems（嫩芽，新DialogInterface.OnClickListener（）{
公共无效的onClick（DialogInterface dialogInterface，INT项）{
// showShortToast（点击+好友[项目]）;
字符串PT code =芽[项目]的ToString（）;;
如果（区域2 ==A）{
callbuddy（PT code，区域2）;
}否则，如果（区域2 ==E）{
callbuddy（PT code，区域2）;
}否则，如果（区域2 ==P）{
callbuddy（PT code，区域2）;
} 其他 {
showShortToast（我们有一个bug）;
}
返回;
}
}）;
builder.create（）显示（）。
}
解决方案
添加一个OnLongClickListener一种方法是通过重写对话框的OnShowListener从OnShow中（DialogInterface对话）方法中设置的OnItemLongClickListener。试试这个：
私人无效displayBuddyList（字符串区）{
最后弦乐区域2 =区域;
上下文的背景下= getApplicationContext（）;
DH =新DataBaseHelper（上下文）;
名单＆LT;字符串＆GT; bnames = dh.selectBuddies（）;
Log.d（TAG，巴迪名称：+ bnames）;
最后的CharSequence []芽= bnames.toArray（新的CharSequence [bnames.size（））;
//最后的CharSequence []项目= {标记，维克兰特号，欧莱简，丹};
AlertDialog.Builder建设者=新AlertDialog.Builder（本）;
builder.setTitle（选择好友）;
builder.setItems（嫩芽，新DialogInterface.OnClickListener（）
{
公共无效的onClick（DialogInterface dialogInterface，INT项）{
// showShortToast（点击+好友[项目]）;
字符串PT code =芽[项目]的ToString（）;;
如果（区域2 ==A）{
callbuddy（PT code，区域2）;
}否则，如果（区域2 ==E）{
callbuddy（PT code，区域2）;
}否则，如果（区域2 ==P）{
callbuddy（PT code，区域2）;
} 其他 {
showShortToast（我们有一个bug）;
}
返回;
}
}）;
最后AlertDialog广告= builder.create（）; //不显示对话框尚未
ad.setOnShowListener（新OnShowListener（）
{
@覆盖
公共无效OnShow中（DialogInterface对话框）
{
ListView的LV = ad.getListView（）; //这是一个ListView在它的芽
lv.setOnItemLongClickListener（新OnItemLongClickListener（）
{
@覆盖
公共布尔onItemLongClick（适配器视图＆LT;＆GT;母公司视图中查看，INT位置，长ID）
{
Log.d（！长按，列表编号+位置+长期被点击）;
返回true;
}
}）;
}
}）;
ad.show（）;
}
I have an AlertDialog in android that contains a list of buddies from sqlite. When I click on the buddy name in the list, that buddy is called. What I want to do is add a longclicklistener to the list as well so I can be prompted to delete the buddies in the list. I am having trouble having onlclick and onlongclick work on the same element. Can someone give me a pointer here. I have been working with android for a few months. Thanks for any help!
private void displayBuddyList(String region) {
final String region2 = region;
Context context = getApplicationContext();
dh = new DataBaseHelper(context);
List<String> bnames = dh.selectBuddies();
Log.d(TAG, "Buddy Names: " +bnames);
final CharSequence[] buds = bnames.toArray(new CharSequence[bnames.size()]);
// final CharSequence[] items = {"Mark", "Vikrant", "Olle,"Jane","Dan"};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select a Buddy");
builder.setItems(buds, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int item) {
// showShortToast("Clicked on:"+buddy[item]);
String ptcode = buds[item].toString();;
if (region2 == "A") {
callbuddy(ptcode,region2);
} else if (region2 == "E") {
callbuddy(ptcode,region2);
} else if (region2 == "P") {
callbuddy(ptcode,region2);
} else {
showShortToast("We have a bug");
}
return;
}
});
builder.create().show();
}
解决方案
one way to add an OnLongClickListener is by overriding the dialog's OnShowListener and setting an OnItemLongClickListener from within the onShow(DialogInterface dialog) method. Give this a try:
private void displayBuddyList(String region) {
final String region2 = region;
Context context = getApplicationContext();
dh = new DataBaseHelper(context);
List<String> bnames = dh.selectBuddies();
Log.d(TAG, "Buddy Names: " +bnames);
final CharSequence[] buds = bnames.toArray(new CharSequence[bnames.size()]);
// final CharSequence[] items = {"Mark", "Vikrant", "Olle,"Jane","Dan"};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select a Buddy");
builder.setItems(buds, new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialogInterface, int item) {
// showShortToast("Clicked on:"+buddy[item]);
String ptcode = buds[item].toString();;
if (region2 == "A") {
callbuddy(ptcode,region2);
} else if (region2 == "E") {
callbuddy(ptcode,region2);
} else if (region2 == "P") {
callbuddy(ptcode,region2);
} else {
showShortToast("We have a bug");
}
return;
}
});
final AlertDialog ad = builder.create(); //don't show dialog yet
ad.setOnShowListener(new OnShowListener()
{
@Override
public void onShow(DialogInterface dialog)
{
ListView lv = ad.getListView(); //this is a ListView with your "buds" in it
lv.setOnItemLongClickListener(new OnItemLongClickListener()
{
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id)
{
Log.d("Long Click!","List Item #"+position+"was long clicked");
return true;
}
});
}
});
ad.show();
}
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