Question

我使用textview和checkbox作为listView的项目。我为listview编写的代码工作正常。但是当我在listview onclicklistener事件中添加了复选框时，现在就不起作用了。我在xml文件中使用此代码：

我的xml代码：

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:weightSum="5" >

    <CheckBox
        android:id="@+id/checkBox1"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1" />

    <TextView
        android:id="@+id/textView_Item_Listview"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="4"
        android:gravity="right"
        android:padding="3dp"
        android:textSize="25sp" />

</LinearLayout>

我的java代码：

private class Adapter_collection extends ArrayAdapter<String> {

    public Adapter_collection(Context context, int resource, int textViewResourceId,
            String[] name_collection_tbl_collection) {
        super(context, resource, textViewResourceId, name_collection_tbl_collection);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View row = inflater.inflate(R.layout.listview_items, parent, false);
        TextView txt_item_list_collection = (TextView) row.findViewById(R.id.textView_Item_Listview);
        CheckBox checkBox=(CheckBox)row.findViewById(R.id.checkBox_Item_Listview);

        checkBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked ) {
            Toast.makeText(getApplicationContext(), String.valueOf(position), Toast.LENGTH_SHORT).show();
            }
        });
        txt_item_list_collection.setText(name_collection_tbl_collection[position]);
        return row;
    }

}


list_collections.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
            Intent goTo_SubjectsActivity = new Intent(Collection_List_Activity.this, Subjects_Activity.class);
            startActivity(goTo_SubjectsActivity);
            Intent_values.id_collection = id_tbl_collection[arg2];
        }
    });

Answer 1

可能的原因是，如果您touchable elements中有List_item，则会阻止list_item触摸，因此onItemclickListener上的ListView无法正常工作。如果要将onClickListener实现到ListView，可以添加

android:descendantFocusability="blocksDescendants"

位于list_item

内的LinearLayout父级

Answer 2

尝试将onclicklistener分配给textview，而不是列表。

    private class Adapter_collection extends ArrayAdapter<String> {

...

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View row = inflater.inflate(R.layout.listview_items, parent, false);
            TextView txt_item_list_collection = (TextView) row.findViewById(R.id.textView_Item_Listview);

            //add this
            txt_item_list_collection.setOnClickListener(new OnClickListener() { ... });

            txt_item_list_collection.setText(name_collection_tbl_collection[position]);
            return row;
        }

    }

为什么不在listView上使用onclicklistener？

2 个答案: