Question

我有listview，这是多选模式

lView = (ListView) findViewById(R.id.ListView01);
lView.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_multiple_choice, lv_items));
lView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);

这包含多个选项列表项我想检查是否选中了所选项目所以我该怎么做。

Answer 1

您需要抓取已点击的项目，然后遍历它们以查找已检查的项目，如下所示：

// Using a List to hold the IDs, but could use an array.
List<Integer> checkedIDs = new ArrayList<Integer>();                            
// Get all of the items that have been clicked - either on or off
final SparseBooleanArray checkedItems = lView.getCheckedItemPositions();                    
for (int i = 0; i < checkedItems.size(); i++){
    // And this tells us the item status at the above position
    final boolean isChecked = checkedItems.valueAt(i);
    if (isChecked){
        // This tells us the item position we are looking at
        final int position = checkedItems.keyAt(i);                                             
        // Put the value of the id in our list
        checkedIDs.put(position);                                                       
    }
}

注意 getCheckedItemPositions（）获取用户已检查的项目，无论是否选中该复选框。

Answer 2

单击时使用了给定列表项的isChecked属性：

protected void onListItemClick(ListView l, View v, int position, long id) {
    CheckedTextView item = (CheckedTextView)v;
    if(item.isChecked()){
            //do what you want
    }

如何检查listitem是否在listview android中检查？

2 个答案: