java 未调用来自 PopupWindow 的 Android ListView 的 setOnItemClickListener
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Android ListView's setOnItemClickListener from PopupWindow not called
提问by Mansi
I'm trying to show a ListView from a PopupWindow. but when I'm try to call ListView's setOnItemClickListener nothing to haapen. Here It Java file
我正在尝试从 PopupWindow 显示 ListView。但是当我尝试调用 ListView 的 setOnItemClickListener 时，什么都没有。这里是 Java 文件
PopupWindowActivity.java
弹出窗口活动.java
public class PopupWindowActivity extends Activity {
String[] data = { "DATA 1", "DATA 2", "DATA 3", "DATA 4", "DATA 5", "DATA 6" };
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.a);
final Button btnOpenPopup = (Button) findViewById(R.id.openpopup);
btnOpenPopup.setOnClickListener(new Button.OnClickListener() {
public void onClick(View arg0) {
LayoutInflater layoutInflater = (LayoutInflater) getBaseContext()
.getSystemService(LAYOUT_INFLATER_SERVICE);
View popupView = layoutInflater.inflate(R.layout.main, null);
final PopupWindow popupWindow = new PopupWindow(popupView,
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
ListView listView = (ListView) popupView.findViewById(R.id.listView1);
listView.setAdapter(new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1,data));
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
System.out.println("Item Clicked");
popupWindow.dismiss();
}
});
popupWindow.showAsDropDown(btnOpenPopup, 20, -5);
}
});
}
}
}
Here it is first xml file a.xml
这是第一个 xml 文件 a.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />
<Button
android:id="@+id/openpopup"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Open Popup Window" />
</LinearLayout>
Here it inflate xml file main.xml
这里它膨胀了 xml 文件 main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/recording"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginBottom="30sp"
android:layout_marginLeft="30sp"
android:layout_marginRight="30sp"
android:layout_marginTop="100sp" >
<ListView
android:id="@+id/listView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:cacheColorHint="#00000000" >
</ListView>
</RelativeLayout>
</LinearLayout>
What am I doing wrong?
我究竟做错了什么？
Thanks
谢谢
回答by rajpara
Just one minor change in your code and BOOOM your code will listen to you list click event
只需对您的代码进行一个小改动，BOOOM 您的代码就会监听您的列表点击事件
final PopupWindow popupWindow = new PopupWindow(popupView,
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT,true);
You forget to mention focusablesetting truein PopupWindowconstructor.
您忘记在PopupWindow构造函数中提及可聚焦设置为true。
回答by vir us
had the same problem, but in my case setFocusble(false)was required (and using ListPopupWindowwas not a solution in my case as a lot of stuff in the project already used base PopupWindow's functionality including extending).
有同样的问题，但在我的情况下setFocusble(false)是必需的（在我的情况下使用ListPopupWindow不是解决方案，因为项目中的很多东西已经使用了 basePopupWindow的功能，包括扩展）。
If someone in the same situation there is a kind of workaround based on bug discusson here(post #9)
如果有人处于相同的情况，则有一种基于此处的错误讨论的解决方法（第 9 篇文章）
The main idea is that ListView's hierarchy is still receives touch events so we can manually trigger onItemClick().
主要思想是它ListView的层次结构仍然接收触摸事件，因此我们可以手动触发onItemClick()。
However this approach is not 100% identical to real ListView's touch handling (like there is no glow of selection while tapping a row) this done pretty well for me for the moment.
然而，这种方法与 realListView的触摸处理并非 100% 相同（就像点击一行时没有选择发光）这对我来说目前做得很好。
If someone has more precise solution of this problem, please share.
如果有人对此问题有更精确的解决方案，请分享。
So, here is complete Adapter's code which can be used with ListViewinside PopupWindowwhich is setFocusable(false):
所以，在这里是完全Adapter可与使用的代码ListView里面PopupWindow是setFocusable(false)：
private class CustomAdapter extends ArrayAdapter {
私有类 CustomAdapter 扩展 ArrayAdapter {
private LayoutInflater mInflater;
private ListView mOwningListView;
public CustomAdapter(Context context, List<String> objects, ListView listView) {
super(context, android.R.layout.simple_list_item_1, objects);
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mOwningListView = listView;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = mInflater.inflate(R.layout.font_pick_row, null);
}
// this is the key point of workaround
convertView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
/*
* as every row is still receiving their touches
* we can use this to manually trigger onItemClick
* since it doesn't firing in popupWindow.setFocusable(false)
*/
mOwningListView.getOnItemClickListener().onItemClick(mOwningListView, v, position, getItemId(position));
}
});
//... other stuff
return convertView;
}
}
}
回答by Shalini
May this help you .
愿这对你有帮助。
Declare listview and list onClickListener outside the button ClickListener.
在按钮 ClickListener 之外声明 listview 和 list onClickListener。
