blocks|key|1073170|text|您可以使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1073171|adapter.clear()+|code-block|syntax|javascript|1073172|这将删除第一个适配器的所有项，然后您可以设置另一个适配器，或者重用该适配器并将这些项添加到旧适配器。如果您使用|1073173|adapter.add()|1073174|要将数据添加到列表中，不需要调用notifyDataSetChanged|1073175|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

You can use 

<pre><code>adapter.clear() 
</code></pre>

that will remove all item of your first adapter then you could either set another adapter or reuse the adapter and add the items to the old adapter. If you use 

<pre><code>adapter.add()
</code></pre>

to add data to your list you don't need to call notifyDataSetChanged

blocks|key|1073210|text|我认为如果你添加下面的代码，它将会工作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1073211|listview.invalidateViews();|code-block|syntax|javascript|1073212|要删除项目，只需从我们传递给适配器的数组列表中删除该项目，然后执行listview.invalidateViews();|offset|length|style|CODE|1073213|这将刷新列表视图|1073214|entityMap^0|0|0|X|R|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

I think if u add the following code, it will work

<pre><code>listview.invalidateViews();
</code></pre>

To remove an item, Just remove that item from the arraylist that we passed to the adapter and do <code>listview.invalidateViews();</code> 
This will refresh the listview

blocks|key|1288008|text|++++++++++++names+=+db.getSites();
++++++++++++la+=+new+ArrayAdapter<String>(EditSiteList.this,
++++++++++++++++++++android.R.layout.simple_list_item_1,+names);
++++++++++++EditSiteList.this.setListAdapter(la);
++++++++++++listview.invalidateViews();|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1288009|这段代码对我来说很好用。|unstyled|1288010|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code> names = db.getSites();
 la = new ArrayAdapter&lt;String&gt;(EditSiteList.this,
 android.R.layout.simple_list_item_1, names);
 EditSiteList.this.setListAdapter(la);
 listview.invalidateViews();
</code></pre>

this code works fine for me.

blocks|key|1288053|text|您将希望从适配器对象中remove()项，然后在适配器上运行notifyDatasetChanged()，任何ListView都将(应该)回收和更新它自己。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1288054|下面是一个简短的AlertDialog活动示例：|1288055|adapter+=+new+MyListAdapter(this);
++++lv+=+(ListView)+findViewById(android.R.id.list);
++++lv.setAdapter(adapter);
++++lv.setOnItemClickListener(new+OnItemClickListener()+{
++++public+void+onItemClick(AdapterView<?>+a,+View+v,+int+position,+long+id)+{
++++++++AlertDialog.Builder+adb=new+AlertDialog.Builder(MyActivity.this);
++++++++adb.setTitle("Delete?");
++++++++adb.setMessage("Are+you+sure+you+want+to+delete+"+%2B+position);
++++++++final+int+positionToRemove+=+position;
++++++++adb.setNegativeButton("Cancel",+null);
++++++++adb.setPositiveButton("Ok",+new+AlertDialog.OnClickListener()+{
++++++++++++public+void+onClick(DialogInterface+dialog,+int+which)+{
++++++++++++++++MyDataObject.remove(positionToRemove);
++++++++++++++++adapter.notifyDataSetChanged();
++++++++++++}});
++++++++adb.show();
++++++++}
++++});|code-block|syntax|javascript|1288056|entityMap^0|B|8|U|M|1J|8|0|8|B|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|N|$]]

You will want to <code>remove()</code> the item from your adapter object and then just run the <code>notifyDatasetChanged()</code> on the Adapter, any <code>ListView</code>s will (should) recycle and update on it's own.

Here's a brief activity example with <code>AlertDialog</code>s:

<pre><code>adapter = new MyListAdapter(this);
 lv = (ListView) findViewById(android.R.id.list);
 lv.setAdapter(adapter);
 lv.setOnItemClickListener(new OnItemClickListener() {
 public void onItemClick(AdapterView&lt;?&gt; a, View v, int position, long id) {
 AlertDialog.Builder adb=new AlertDialog.Builder(MyActivity.this);
 adb.setTitle("Delete?");
 adb.setMessage("Are you sure you want to delete " + position);
 final int positionToRemove = position;
 adb.setNegativeButton("Cancel", null);
 adb.setPositiveButton("Ok", new AlertDialog.OnClickListener() {
 public void onClick(DialogInterface dialog, int which) {
 MyDataObject.remove(positionToRemove);
 adapter.notifyDataSetChanged();
 }});
 adb.show();
 }
 });
</code></pre>

blocks|key|1073363|text|将其从适配器中删除，然后通知arrayadapter数据集已更改。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1073364|m_adapter.remove(o);
m_adapter.notifyDataSetChanged();|code-block|syntax|javascript|1073365|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Remove it from the adapter and then notify the arrayadapter that data set has changed.

<pre><code>m_adapter.remove(o);
m_adapter.notifyDataSetChanged();
</code></pre>

blocks|key|1288152|text|int+count+=+adapter.getCount();
for+(int+i+=+0;+i+<+count;+i%2B%2B)+{
+adapter.remove(adapter.getItem(i));
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1288153|然后调用notifyDataSetChanged();|unstyled|offset|length|style|CODE|1288154|entityMap^0|0|4|N|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@$G|O|H|P|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>int count = adapter.getCount();
for (int i = 0; i &lt; count; i++) {
 adapter.remove(adapter.getItem(i));
}
</code></pre>

then call <code>notifyDataSetChanged();</code>

blocks|key|1073414|text|首先，您应该从列表中删除该项目。稍后，您可以清空适配器，并用新列表重新填充适配器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1073415|private+void+add(final+List<Track>+trackList)+{
++++MyAdapter+bindingData+=+new+MyAdapter(MyActivity.this,+trackList);

++++list+=+(ListView)+findViewById(R.id.my_list);+//+TODO

++++list.setAdapter(bindingData);


++++//+Click+event+for+single+list+row
++++list.setOnItemClickListener(new+OnItemClickListener()+{

++++++++public+void+onItemClick(AdapterView<?>+parent,+View+view,
++++++++++++++++final+int+position,+long+id)+{
++++++++++++//+ShowPlacePref(places,+position);
++++++++++++AlertDialog.Builder+showPlace+=+new+AlertDialog.Builder(
++++++++++++++++++++Favoriler.this);
++++++++++++showPlace.setMessage("Remove+from+list?");
++++++++++++showPlace.setPositiveButton("DELETE",+new+OnClickListener()+{
++++++++++++++++public+void+onClick(DialogInterface+dialog,+int+which)+{++++

++++++++++++++++++++trackList.remove(position);+//FIRST+OF+ALL+REMOVE+ITEM+FROM+LIST
++++++++++++++++++++list.setAdapter(null);+//+THEN+EMPTY+YOUR+ADAPTER

++++++++++++++++++++add(trackList);+//+AT+LAST+REFILL+YOUR+LISTVIEW+(Recursively)

++++++++++++++++}

++++++++++++});
++++++++++++showPlace.setNegativeButton("CANCEL",+new+OnClickListener()+{
++++++++++++++++public+void+onClick(DialogInterface+dialog,+int+which)+{

++++++++++++++++}
++++++++++++});
++++++++++++showPlace.show();
++++++++}

++++});

}|code-block|syntax|javascript|1073416|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

At first you should remove the item from your list. Later you may empty your adapter and refill it with new list.

<pre><code>private void add(final List&lt;Track&gt; trackList) {
 MyAdapter bindingData = new MyAdapter(MyActivity.this, trackList);

 list = (ListView) findViewById(R.id.my_list); // TODO

 list.setAdapter(bindingData);


 // Click event for single list row
 list.setOnItemClickListener(new OnItemClickListener() {

 public void onItemClick(AdapterView&lt;?&gt; parent, View view,
 final int position, long id) {
 // ShowPlacePref(places, position);
 AlertDialog.Builder showPlace = new AlertDialog.Builder(
 Favoriler.this);
 showPlace.setMessage("Remove from list?");
 showPlace.setPositiveButton("DELETE", new OnClickListener() {
 public void onClick(DialogInterface dialog, int which) { 

 trackList.remove(position); //FIRST OF ALL REMOVE ITEM FROM LIST
 list.setAdapter(null); // THEN EMPTY YOUR ADAPTER

 add(trackList); // AT LAST REFILL YOUR LISTVIEW (Recursively)

 }

 });
 showPlace.setNegativeButton("CANCEL", new OnClickListener() {
 public void onClick(DialogInterface dialog, int which) {

 }
 });
 showPlace.show();
 }

 });

}
</code></pre>

blocks|key|1073447|text|这是一个简单的.First，你应该清空你的集合，在清空列表之后，就像下面这样的代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1073448|+yourCollection.clear();
+setListAdapter(null);|code-block|syntax|javascript|1073449|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

It's simple .First you should clear your collection and after clear list like this code :

<pre><code> yourCollection.clear();
 setListAdapter(null);
</code></pre>

blocks|key|1073477|text|试试这段代码，它对我很有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1073478|public+class+Third+extends+ListActivity+{
private+ArrayAdapter<String>+adapter;
private+List<String>+liste;
@Override
protected+void+onCreate(Bundle+savedInstanceState)+{
++++super.onCreate(savedInstanceState);
++++setContentView(R.layout.activity_third);
+++++String[]+values+=+new+String[]+{+"Android",+"iPhone",+"WindowsMobile",
++++++++++++++++"Blackberry",+"WebOS",+"Ubuntu",+"Windows7",+"Max+OS+X",
++++++++++++++++"Linux",+"OS/2"+};
+++++liste+=+new+ArrayList<String>();
+++++Collections.addAll(liste,+values);
+++++adapter+=+new+ArrayAdapter<String>(this,
++++++++++++++++android.R.layout.simple_list_item_1,+liste);
+++++setListAdapter(adapter);
}
+@Override
++protected+void+onListItemClick(ListView+l,+View+v,+int+position,+long+id)+{
+++++liste.remove(position);
+++++adapter.notifyDataSetChanged();
++}
}|code-block|syntax|javascript|1073479|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this code, it works for me.

<pre><code>public class Third extends ListActivity {
private ArrayAdapter&lt;String&gt; adapter;
private List&lt;String&gt; liste;
@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_third);
 String[] values = new String[] { "Android", "iPhone", "WindowsMobile",
 "Blackberry", "WebOS", "Ubuntu", "Windows7", "Max OS X",
 "Linux", "OS/2" };
 liste = new ArrayList&lt;String&gt;();
 Collections.addAll(liste, values);
 adapter = new ArrayAdapter&lt;String&gt;(this,
 android.R.layout.simple_list_item_1, liste);
 setListAdapter(adapter);
}
 @Override
 protected void onListItemClick(ListView l, View v, int position, long id) {
 liste.remove(position);
 adapter.notifyDataSetChanged();
 }
}
</code></pre>

blocks|key|1288304|text|您还可以使用listView.setOnItemLongClickListener删除所选项目。下面是代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1288305|//+listView+=+ListView的名称|1288306|++listView.setOnItemLongClickListener(new+AdapterView.OnItemLongClickListener()+{
++++++++@Override
++++++++public+boolean+onItemLongClick(AdapterView<?>+parent,+View+view,+int+
++++++++position,+long+id)+{

++++++++//+it+will+get+the+position+of+selected+item+from+the+ListView

final+int+selected_item+=+position;

++++++++++++new+AlertDialog.Builder(MainActivity.this).
++++++++++++++++++++setIcon(android.R.drawable.ic_delete)
++++++++++++++++++++.setTitle("Are+you+sure...")
++++++++++++++++++++.setMessage("Do+you+want+to+delete+the+selected+item..?")
++++++++++++++++++++.setPositiveButton("Yes",+new+DialogInterface.OnClickListener()+{
++++++++++++++++++++++++@Override
++++++++++++++++++++++++public+void+onClick(DialogInterface+dialog,+int+which)
++++++++++++++++++++++++{
++++++++++++++++++++++++++++list.remove(selected_item);
++++++++++++++++++++++++++++arrayAdapter.notifyDataSetChanged();
++++++++++++++++++++++++}
++++++++++++++++++++})
++++++++++++++++++++.setNegativeButton("No"+,+null).show();

++++++++++++return+true;
++++++++}
++++});|code-block|syntax|javascript|1288307|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can also use listView.setOnItemLongClickListener to delete selected item.
Below is the code.

// listView = name of your ListView

<pre><code> listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
 @Override
 public boolean onItemLongClick(AdapterView&lt;?&gt; parent, View view, int 
 position, long id) {

 // it will get the position of selected item from the ListView

final int selected_item = position;

 new AlertDialog.Builder(MainActivity.this).
 setIcon(android.R.drawable.ic_delete)
 .setTitle("Are you sure...")
 .setMessage("Do you want to delete the selected item..?")
 .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
 @Override
 public void onClick(DialogInterface dialog, int which)
 {
 list.remove(selected_item);
 arrayAdapter.notifyDataSetChanged();
 }
 })
 .setNegativeButton("No" , null).show();

 return true;
 }
 });
</code></pre>

blocks|key|1073591|text|//尝试如下：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1073592|字符串文本=(+(TextView)视图).getText().toString()；|1073593|Adapter.remove(文本)；|1073594|📷|atomic|offset|length|1073595|​|1073596|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/fd30ed4685fa6a6621c6ecb4479129d1.jpeg|imageAlt^0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|Y|8|@]|9|@$I|Z|J|10|1|11]]|A|$]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T|U|-4]]]]

//try this:
String text = ( (TextView) view).getText().toString(); 
adapter.remove(text);
<a href="https://i.stack.imgur.com/Fe3Cm.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Fe3Cm.jpg" alt="enter image description here" /></a>

Can somebody please give me an example code of removing all ListView items and replacing with new items?

I tried replacing the adapter items without success. My code is

<pre><code>populateList(){

 results //populated arraylist with strings

 ArrayAdapter&lt;String&gt; adapter = new ArrayAdapter&lt;String&gt;(this,
 android.R.layout.simple_list_item_1, results);

 listview.setAdapter(adapter);
 adapter.notifyDataSetChanged();
 listview.setOnItemClickListener(this);

}

// now populating list again

repopulateList(){

 results1 //populated arraylist with strings

 ArrayAdapter&lt;String&gt; adapter1 = new ArrayAdapter&lt;String&gt;(this,
 android.R.layout.simple_list_item_1, results1);

 listview.setAdapter(adapter1);
 adapter1.notifyDataSetChanged();
 listview.setOnItemClickListener(this);
}
</code></pre>

Here <code>repopulateList()</code> method will add to ListView items, but it doesn't remove/replace all ListView items.

Remove ListView items in Android

谁能给我一个示例代码删除所有的ListView项目，并替换为新的项目？我尝试更换适配器项，但没有成功。我的代码是populateList(){ results //populated arraylist with strings ArrayAdapter<String> adapter = new ArrayAdapt...

问移除安卓系统中的ListView项目
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