我希望在长按自定义列表视图中的项目后显示上下文菜单。我正在使用ActionBarSherlock。尝试使用Toast通知进行调试我发现不会触发长按事件。如何解决这个问题?
m_vwJokeLayout=(ListView)findViewById(R.id.jokeListViewGroup);
m_vwJokeLayout.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
if(m_vwActionMode!=null)
{
Toast.makeText(getApplicationContext(), "Inside On Itemlongclick", Toast.LENGTH_LONG).show();
return false;
}
Toast.makeText(getApplicationContext(), "Inside On Itemlongclick", Toast.LENGTH_LONG).show();
m_vwActionMode=getSherlock().startActionMode(m_vwCallback);
view.setSelected(true);
return true;
}
});
我的ListView
声明的xml代码如下:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="fill_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<Button
android:id="@+id/addJokeButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/add_joke_button"
/>
<EditText
android:id="@+id/newJokeEditText"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_weight="2"
android:hint="@string/enter_text_edittext"
/>
</LinearLayout>
<ListView
android:id="@+id/jokeListViewGroup"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
自定义View
中ListView
的xml代码如下:
<?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="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal"
android:weightSum="3" >
<LinearLayout
android:layout_width="200dp"
android:layout_height="match_parent"
android:layout_weight="2"
android:gravity="center_vertical"
android:orientation="vertical" >
<TextView
android:id="@+id/jokeTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:ellipsize="middle"
android:gravity="center"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:text="Hello,"
android:textSize="16px"
/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center_horizontal"
android:orientation="vertical" >
<RadioGroup
android:id="@+id/ratingRadioGroup"
android:layout_width="40dp"
android:layout_height="60dp"
android:layout_marginRight="10dp"
android:gravity="center"
>
<RadioButton
android:id="@+id/likeButton"
android:background="@drawable/like"
android:button="@null"
/>
<RadioButton
android:id="@+id/dislikeButton"
android:background="@drawable/dislike"
android:button="@null"
/>
</RadioGroup>
</LinearLayout>
</LinearLayout>
答案 0 :(得分:15)
这是由于listitem布局中单选按钮的可聚焦性而发生的。
将以下行添加到ListView项目布局的根布局。
android:descendantFocusability="blocksDescendants"
答案 1 :(得分:-1)
您应该使用listview的onItemLongClickListener,如下所示:
lv.setOnItemLongClickListener(new OnItemLongClickListener() {
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
int pos, long id) {
// TODO Auto-generated method stub
Log.v("long clicked","pos"+" "+pos);
return true;
}
});
请注意,侦听器不是AdapterView类的衍生物!!!!