Android:弹出窗口:试图完成输入事件,但输入事件接收器已被释放
我想在用户按下分类按钮时添加一个弹出窗口。该窗口将显示可用类别的列表。弹出窗口的相关代码如下所示:Android:弹出窗口:试图完成输入事件,但输入事件接收器已被释放,android,arraylist,popupwindow,Android,Arraylist,Popupwindow,我想在用户按下分类按钮时添加一个弹出窗口。该窗口将显示可用类别的列表。弹出窗口的相关代码如下所示: onCreate: 弹出窗口: public-PopupWindow-ppoppupwindowdogs() { 最终PopupWindow localPopupWindow=新PopupWindow(此); ListView lv=新的ListView(本); lv.setAdapter(新的MyCustomArrayAdapter_POP(DB_Ex_ListActivity.this));
onCreate
:
弹出窗口:
public-PopupWindow-ppoppupwindowdogs()
{
最终PopupWindow localPopupWindow=新PopupWindow(此);
ListView lv=新的ListView(本);
lv.setAdapter(新的MyCustomArrayAdapter_POP(DB_Ex_ListActivity.this));
lv.setOnItemClickListener(新的OnItemClickListener()
{
public void onItemClick(AdapterView父对象、视图、整型位置、长id)
{
如果(位置==0)
{
}
localPopupWindow.Disclose();
}
});
localPopupWindow.setFocusable(true);
localPopupWindow.setOutsideTouchable(真);
setBackgroundDrawable(新的ColorDrawable(android.graphics.Color.TRANSPARENT));
localPopupWindow.setWidth(Constants.SCREEN_W/2);
localPopupWindow.setHeight(Constants.SCREEN_H);
localPopupWindow.setContentView(lv);
返回localPopupWindow;
}
私有类MyCustomArrayAdapter_POP扩展BaseAdapter
{
私人停车场;
私有上下文mContext=null;
公共MyCustomArrayAdapter_POP(上下文)
{
mContext=上下文;
mInflater=LayoutInflater.from(mContext);
}
public int getCount()
{
返回localArrayList.size();
}
公共对象getItem(int arg0)
{
返回localArrayList.get(arg0);
}
公共长getItemId(int位置)
{
返回位置;
}
公共视图getView(int位置、视图转换视图、视图组父视图)
{
if(convertView==null)
{
convertView=mInflater.充气(R.layout.listview_项,空);
}
TextView lv_item_text=(TextView)convertView.findViewById(R.id.lv_item_text);
lv_item_text.setText(category_list.get(position));
}
convertView.setLayoutParams(新的ListView.LayoutParams((int)(常数.SCREEN_W/2),(int)(常数.SCREEN_W/7));
返回视图;
}
}
问题:
按下按钮时,弹出窗口不显示。
Logcat报道
试图完成输入事件,但输入事件接收器已被释放。
在调用ShowAs下拉列表下方添加以下代码行
popupWindowDogs.update(v,200,300 );
根据弹出窗口的宽度和高度调整200和300
就这样 lv.setOnItemClickListener(新的OnItemClickListener(){
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (position == 0)
{
} else{
localPopupWindow.dismiss();
}
}
});
public void onItemClick(AdapterView父对象、视图、整型位置、长id){
如果(位置==0)
{
}否则{
localPopupWindow.Disclose();
}
}
});
将您的localPopupWindow.Disclease()调用放在else中,因为当if条件失败时,它将执行下一行,即localPopWindow。dimiss()也有同样的问题。[这个答案][1]对我有用。[1]:
public PopupWindow ppopupWindowDogs()
{
final PopupWindow localPopupWindow = new PopupWindow(this);
ListView lv = new ListView(this);
lv.setAdapter(new MyCustomArrayAdapter_POP(DB_Ex_ListActivity.this));
lv.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
if (position == 0)
{
}
localPopupWindow.dismiss();
}
});
localPopupWindow.setFocusable(true);
localPopupWindow.setOutsideTouchable(true);
localPopupWindow.setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
localPopupWindow.setWidth(Constants.SCREEN_W / 2);
localPopupWindow.setHeight(Constants.SCREEN_H );
localPopupWindow.setContentView(lv);
return localPopupWindow;
}
private class MyCustomArrayAdapter_POP extends BaseAdapter
{
private LayoutInflater mInflater;
private Context mContext = null;
public MyCustomArrayAdapter_POP(Context context)
{
mContext = context;
mInflater = LayoutInflater.from(mContext);
}
public int getCount()
{
return localArrayList.size();
}
public Object getItem(int arg0)
{
return localArrayList.get(arg0);
}
public long getItemId(int position)
{
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
if (convertView == null)
{
convertView = mInflater.inflate(R.layout.listview_item, null);
}
TextView lv_item_text = (TextView) convertView.findViewById(R.id.lv_item_text);
lv_item_text.setText(category_list.get(position));
}
convertView.setLayoutParams(new ListView.LayoutParams((int)(Constants.SCREEN_W/2), (int)(Constants.SCREEN_W/7)));
return convertView;
}
}
popupWindowDogs.update(v,200,300 );
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (position == 0)
{
} else{
localPopupWindow.dismiss();
}
}
});