选择在Android的ListView中的所有复选框 [英] select all check box in android listview
问题描述
在我的应用程序,我试图创建多个复选框列表。
In my Application, i tried to create a list with multiple check boxes.
对于我试过一次的ListView
与 android.R.layout.simple_list_item_multiple_choice
多选在的ListView
。
for that i tried one ListView
with android.R.layout.simple_list_item_multiple_choice
for multiple choice in ListView
.
我在XML中的ListView的,..
My ListView in XML as,..
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="468dp"
android:choiceMode="multipleChoice"
android:divider="#b5b5b5"
android:dividerHeight="1dp" >
和我使用复选框
来选择/取消选择所有的复选框
在的ListView
为
And i use an CheckBox
to select/deselect all the CheckBox
in the ListView
as
<CheckBox
android:id="@+id/select_all"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_column="2"
android:textSize="18dp"
android:text="Select all" />
和java code作为,..
and java code as,..
selectall.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
int size = 0;
boolean isChecked = selectall.isChecked();
if (isChecked == true) {
size = getListView().getCount();
for (int i = 0; i <= size; i++)
l1.setItemChecked(i, true);
} else if(isChecked==false)
{
size = getListView().getCount();
for (int i = 0; i <= size; i++)
l1.setItemChecked(i, false);
}
}
});
下面我分配了L1作为我的的ListView
。现在我的全部选中复选框的工作非常好选择/取消所有复选框中的的ListView
。
Here i have assigned the l1 as my ListView
. Now my Select All check box working very well for Select/Deselect all the check boxes in the ListView
.
但是,如果我点击全选复选框,它不是取消勾选..后取消的项目之一
But, if i deselect one of the item after clicking select all check box, its not un-checking..
如果我在列表中手动意味着选择所有的复选框,选择所有的复选框
需要自动检查..
And if i select all the check boxes in the list manually means, the Select all CheckBox
needs to checked automatically..
我用下面的codeS为ListAdapter
I used the following codes for ListAdapter
ArrayAdapter<String> adapter1 = new ArrayAdapter<String>
(this,Android.R.layout.simple_list_item_multiple_choice,list);
setListAdapter(adapter1);
l1=getListView();
我想实现这个解决方案。
I'm trying to achieve this Solution..
推荐答案
您可以使用HashMap或一个List theObjectRow 以跟踪哪些sheckbox检查用布尔的。
you could use a HashMap or a List of theObjectRow to keep track of which sheckbox is checked with a boolean.
然后当你点击 checkAll 您更新您的列表中真正的全布尔做yourAdapter.notifyDataSetChanged();
then when you click on checkAll you update all boolean in your list to true and do yourAdapter.notifyDataSetChanged();
当然,在你的适配器(baseadapter例如),您使用的HashMap /列表中GetView给init细胞。
of course in your adapter (baseadapter for example) you use the HashMap/List in GetView to init the cells.
if(list.get(position).isChecked()){
cellHolder.checkBox.setChecked(true);
}
else{
cellHolder.checkBox.setChecked(false);
}
所有的布尔处于真正让所有的复选框会检查(同样的逻辑也适用于取消)
All the boolean are at true so all the checkBox ll be checked (the same logic goes for uncheck)
希望它帮助 好运气
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