我正在尝试使用自定义的 arrayAdapter 来实现 listView。我可以看到我的列表,但是当我尝试选择列表中的一个选项时,我实现的方法 onItemClick 不起作用。我在 StackOverflow 中看到过类似的问题,但是提供的解决方案都不适合我……我已经尝试过使用android:descendantFocusability="blocksDescendants"
, withandroid:clickable="false"
和android:focusable="false"
用于列表中每一行的元素,并且我也尝试过制作 MainActivity。 java实现onItemClick,但它不起作用。我知道我的代码一定有错误,但我找不到它......
这是我的代码:
guia_general_list.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#E6CEC1"
android:orientation="horizontal" >
<ListView
android:id="@+id/lstOpciones"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_gravity="top|center"
android:background="#E6CEC1" />
</LinearLayout>
item_elements.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layoutGeneral"
android:layout_width="match_parent"
android:layout_height="55dp"
android:background="@drawable/menu_selector_bar"
android:clickable="true"
android:focusable="true"
android:orientation="horizontal" >
<ImageView
android:id="@+id/ivQueVerElement"
android:layout_width="65dp"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:paddingBottom="1dp"
android:paddingLeft="1dp"
android:paddingTop="1dp"
android:scaleType="fitXY" />
<TextView
android:id="@+id/txtOptionName"
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_gravity="center_vertical"
android:layout_weight="1"
android:gravity="center_vertical"
android:paddingLeft="5dp"
android:textColor="#FFFFFF"
android:textStyle="bold" />
<ImageView
android:id="@+id/ivVerOpcion"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_gravity="right|center_vertical"
android:src="@drawable/navigation_next_item" />
</LinearLayout>
ElementsAdapter.java
public class ElementsAdapter extends ArrayAdapter<OptionList>{
int layoutResourceId;
Context context;
OptionList data[] = null;
public ElementsAdapter(Context context, int layoutResourceId, OptionList[] data) {
super(context, layoutResourceId, data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
OptionListHolder holder = null;
if(row == null){
LayoutInflater inflater = ((Activity)context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
holder = new OptionListHolder();
holder.imgIcon = (ImageView)row.findViewById(R.id.ivQueVerElement);
holder.txtTitle = (TextView)row.findViewById(R.id.txtOptionName);
row.setTag(holder);
}else{
holder = (OptionListHolder)row.getTag();
}
OptionList option = data[position];
holder.txtTitle.setText(option.getOptionName());
holder.imgIcon.setImageResource(option.getImageName());
LinearLayout layoutItem = (LinearLayout) row.findViewById(R.id.layoutGeneral);
return row;
}
static class OptionListHolder{
ImageView imgIcon;
TextView txtTitle;
}
public int getCount() {
return data.length;
}
public OptionList getItem(int position) {
return ((OptionList)data[position]);
}
public long getItemId(int position) {
return position;
}
}
MainActivity.java:
public class MainActivity extends Activity{
ArrayAdapter<String> adaptador;
public MainActivity() {
// TODO Auto-generated constructor stub
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.guia_general_list);
}
@Override
protected void onResume() {
super.onResume();
OptionList optionListData[] = new OptionList[]{
new OptionList("Option1", R.drawable.image1),
new OptionList("Option2", R.drawable.image2),
new OptionList("Option3", R.drawable.image3)
};
ElementsAdapter adapter = new ElementsAdapter(this, R.layout.item_elements, optionListData);
ListView lstOptions = (ListView)findViewById(R.id.lstOpciones);
lstOptions.setAdapter(adapter);
lstOptions.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long id){
Toast.makeText(getApplicationContext(), "ENTRA!", Toast.LENGTH_LONG).show();
Log.d("xxx","AAA: Position: "+position);
}
}
});
}
}
谁能帮我?
先感谢您!