[目前,我正在以编程方式创建一个弹出菜单,其中显示楼层列表和标题。但是,仅更改标题的背景颜色并为标题添加关闭按钮真是一场噩梦。
我想用列表弹出窗口替换此弹出菜单,因此我可以为标题添加具有background属性的XML文件,其标题为黑色,菜单项的右侧和白色背景为关闭按钮。有没有一种方法可以通过列表弹出窗口来实现?这是我的代码:
private void floorMenu(ImageView btnFloorMenu){
MapData data = new MapDao(MyPlugin.mapId);
final List<Floor> flList = dao.getFloors();
// set popupMenu
final PopupMenu floorsPm = new PopupMenu(MapViewActivity.this,btnFloorMenu);
MenuItem titleItem = floorsPm.getMenu().add(Menu.NONE, Menu.NONE, Menu.NONE, "Floors");
int i = 1;
for(Floor fl : flList)
{
floorsPm.getMenu().add(Menu.NONE, i,i, fl.getName());
if(i>3)
break;
i++;
}
// add popup listener
floorsPm.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
// onClick
@Override
public boolean onMenuItemClick(MenuItem item){
// get floorname
int flOrder = item.getOrder();
if(flOrder == Menu.NONE )
return true;
flOrder--;
final String floorId = flList.get(flOrder).getMapId();
// set camera to floor
runOnUiThread(new Runnable() {
@Override
public void run() {
floorsPm.dismiss();
mapFragment.getMapManager().setCameraLayer(floorId, false);
Log.d(TAG, "post cameraLayer set");
changedSteps = true;
pauseNav();
}
});
return true;
}
});
floorsPm.show();
}
这是我创建显示ListPopupWindow
的示例
第一,为item_list_popup_window
的每个项目创建布局[C0
ListPopupWindow
Second,为<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#e4e4e4"
android:paddingTop="1dp"
android:orientation="horizontal">
<TextView
android:id="@+id/text_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1" />
<Button
android:id="@+id/button_delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Delete" />
</LinearLayout>
创建一个Adapter
,例如
ListPopupWindow
第三,创建用于创建并显示public class ListPopupWindowAdapter extends BaseAdapter{
private Activity mActivity;
private List<String> mDataSource = new ArrayList<>();
private LayoutInflater layoutInflater;
private OnClickDeleteButtonListener clickDeleteButtonListener;
ListPopupWindowAdapter(Activity activity, List<String> dataSource, @NonNull OnClickDeleteButtonListener clickDeleteButtonListener){
this.mActivity = activity;
this.mDataSource = dataSource;
layoutInflater = mActivity.getLayoutInflater();
this.clickDeleteButtonListener = clickDeleteButtonListener;
}
@Override
public int getCount() {
return mDataSource.size();
}
@Override
public String getItem(int position) {
return mDataSource.get(position);
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if(convertView == null){
holder = new ViewHolder();
convertView = layoutInflater.inflate(R.layout.item_list_popup_window, null);
holder.tvTitle = (TextView) convertView.findViewById(R.id.text_title);
holder.btnDelete = (Button) convertView.findViewById(R.id.button_delete);
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
// bind data
holder.tvTitle.setText(getItem(position));
holder.btnDelete.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clickDeleteButtonListener.onClickDeleteButton(position);
}
});
return convertView;
}
public class ViewHolder{
private TextView tvTitle;
private Button btnDelete;
}
// interface to return callback to activity
public interface OnClickDeleteButtonListener{
void onClickDeleteButton(int position);
}
}
ListPopupWindow
最后,您可以通过[]显示private void showListPopupWindow(View anchorView) {
final ListPopupWindow listPopupWindow = new ListPopupWindow(this);
listPopupWindow.setWidth(600);
List<String> sampleData = new ArrayList<>();
sampleData.add("A");
sampleData.add("B");
sampleData.add("CCCCCCCCCCCCCC");
sampleData.add("D");
sampleData.add("EEEEEEEEE");
listPopupWindow.setAnchorView(anchorView);
ListPopupWindowAdapter listPopupWindowAdapter = new ListPopupWindowAdapter(this, sampleData, new ListPopupWindowAdapter.OnClickDeleteButtonListener() {
@Override
public void onClickDeleteButton(int position) {
Toast.makeText(MainActivity.this, "Click delete " + position, Toast.LENGTH_SHORT).show();
listPopupWindow.dismiss();
}
});
listPopupWindow.setAdapter(listPopupWindowAdapter);
listPopupWindow.show();
}
ListPopupWindow
例如,如果您想在单击按钮时显示它
showListPopupWindow(v);
anyButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { showListPopupWindow(v); } });
请尝试此代码,也许您不会这样