为自定义列表视图的每个项目添加一个下拉菜单 [英] Add a drop down menu for each item of a Custom ListView
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问题描述
现在，我想为列表中的每个项目下拉菜单，以便当用户点击列表中的任何项目时，下拉菜单显示两个选项 - 编辑和删除。根据用户的选择，列表视图项目被照顾。
我想知道将下拉菜单添加到每个列表视图项的方法。
列表项目的xml文件 -
<？xml版本=1.0encoding =utf-8？>
< RelativeLayout xmlns：android =http://schemas.android.com/apk/res/android
android：layout_width =match_parentandroid：layout_height =120dp
机器人：背景= ＃FFFFFF >
< CheckBox
android：layout_width =wrap_content
android：layout_height =wrap_content
android：layout_centerVertical =true
android：id =@ + id / chkitem
android：layout_alignParentLeft =true
/>
< TextView android：id =@ + id / textTitle
android：layout_width =200dp
android：layout_height =60dp
android：textSize =15dp
android：textColor =＃000000
android：textStyle =bold
android：gravity =fill
android：layout_toRightOf =@ + id / chkitem
/>
< TextView
android：layout_width =200dp
android：layout_height =60dp
android：id =@ + id / detail
android： textSize =15dp
android：textStyle =italic
android：gravity =fill
android：layout_toRightOf =@ + id / chkitem
android：layout_below = @ + ID / textTitle/>
< / RelativeLayout>
适配器类
code> public class list_addr_adapter extends ArrayAdapter< list_addr> {
上下文上下文;
int layoutResourceId;
public list_addr_adapter（Context context，int layoutResourceId，List< list_addr> items）{
super（context，layoutResourceId，items）;
this.layoutResourceId = layoutResourceId;
this.context = context;
// this.listener = callback;
}
/ *私有视图持有者类* /
私有类ViewHolder {
TextView txtTitle;
TextView txtDetail;
}
ViewHolder holder = null;
public View getView（int position，View convertView，ViewGroup parent）{
final list_addr lists = getItem（position）;
final int pos = position;
LayoutInflater mInflater =（LayoutInflater）上下文
.getSystemService（Activity.LAYOUT_INFLATER_SERVICE）;
if（convertView == null）{
convertView = mInflater.inflate（R.layout.items_sav_addr2，null）;
holder = new ViewHolder（）;
holder.txtTitle =（TextView）convertView.findViewById（R.id.textTitle）;
holder.txtDetail =（TextView）convertView.findViewById（R.id.detail）;
convertView.setTag（holder）;
} else
holder =（ViewHolder）convertView.getTag（）;
holder.txtTitle.setText（lists.getTitle（））;
holder.txtDetail.setText（lists.getDetail（））;
return convertView;
}
}
我想要这样这个 -
解决方案
检查：
Xml：
？xml version =1.0encoding =utf-8？>
< RelativeLayout xmlns：android =http://schemas.android.com/apk/res/android
android：layout_width =match_parent
android：layout_height =120dp
android：background =＃FFFFFF>
< CheckBox
android：id =@ + id / chkitem
android：layout_width =wrap_content
android：layout_height =wrap_content
android：layout_alignParentLeft =true
android：layout_centerVertical =true/>
< TextView
android：id =@ + id / textTitle
android：layout_width =200dp
android：layout_height =60dp
android：layout_toRightOf =@ + id / chkitem
android：gravity =fill
android：textColor =＃000000
android：textSize =15dp
android：textStyle =bold/>
< TextView
android：id =@ + id / detail
android：layout_width =200dp
android：layout_height =60dp
android：layout_below =@ + id / textTitle
android：layout_toRightOf =@ + id / chkitem
android：gravity =fill
android：textSize =15dp
android：textStyle =italic/>
< ImageView
android：id =@ + id / imageview
android：layout_width =wrap_content
android：layout_height =wrap_content
android：layout_alignParentRight =true
android：layout_centerInParent =true
android：src =@ mipmap / ic_launcher/> //替换图像
< ; / RelativeLayout的>
适配器类：
public class list_addr_adapter extends ArrayAdapter< list_addr> {
上下文上下文;
int layoutResourceId;
public list_addr_adapter（Context context，int layoutResourceId，List< list_addr> items）{
super（context，layoutResourceId，items）;
this.layoutResourceId = layoutResourceId;
this.context = context;
// this.listener = callback;
}
/ *私有视图持有者类* /
私有类ViewHolder {
TextView txtTitle;
TextView txtDetail;
ImageView imageview;
}
ViewHolder holder = null;
public View getView（int position，View convertView，ViewGroup parent）{
final list_addr lists = getItem（position）;
final int pos = position;
LayoutInflater mInflater =（LayoutInflater）上下文
.getSystemService（Activity.LAYOUT_INFLATER_SERVICE）;
if（convertView == null）{
convertView = mInflater.inflate（R.layout.items_sav_addr2，null）;
holder = new ViewHolder（）;
holder.txtTitle =（TextView）convertView.findViewById（R.id.textTitle）;
holder.txtDetail =（TextView）convertView.findViewById（R.id.detail）;
holder.imageview =（ImageView）convertView.findViewById（R.id.imageview）;
convertView.setTag（holder）;
} else
holder =（ViewHolder）convertView.getTag（）;
holder.txtTitle.setText（lists.getTitle（））;
holder.txtDetail.setText（lists.getDetail（））;
try {
holder.imageview.setOnClickListener（new View.OnClickListener（）{
@Override
public void onClick（View v）{
switch（v.getId（））{
case R.id.imageview：
PopupMenu popup = new PopupMenu（getApplicationContext（），v ）;
popup.getMenuInflater（）。inflate（R.menu.clipboard_popup，
popup.getMenu（））;
popup.show（）;
popup.setOnMenuItemClickListener（new PopupMenu.OnMenuItemClickListener（）{
@Override
public boolean onMenuItemClick（MenuItem item）{
switch（item.getItemId（））{
case R.id.编辑：
//或者你想放在这里的其他一些代码..这只是一个例子
Toast.makeText（getApplicationContext（），Install Clicked at position+：+ position，Toast.LENGTH_LONG）.show（）;
break;
case R.id.delete：
Toast.makeText（getApplicationContext（），添加到心愿单单击位置+：+位置，Toast.LENGTH_LONG）.show（ ）;
break;
默认值：
break;
}
返回true;
}
}）;
break;
默认值：
break;
}
}
}）;
} catch（Exception e）{
e.printStackTrace（）;
}
return convertView;
}
}
Popup menu.xml
<？xml version =1.0encoding =utf-8？>
< menu xmlns：android =http://schemas.android.com/apk/res/android>
< item
android：id =@ + id / install
android：title =安装/>
< item
android：id =@ + id / addtowishlist
android：title =添加到愿望清单/>
< / menu>
参考这个： Android列表视图布局与Google播放类似
I have a Custom List view that works perfectly. Now, I want to have a drop down menu for each item in the list so that when the user taps on any item of the list,the drop down menu shows two options-edit and delete. According to the user's choice the list view item is taken care of.
I want to know the method of adding the drop down menu to each listview item.
xml file for list items-
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="120dp"
android:background="#FFFFFF">
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:id="@+id/chkitem"
android:layout_alignParentLeft="true"
/>
<TextView android:id="@+id/textTitle"
android:layout_width="200dp"
android:layout_height="60dp"
android:textSize="15dp"
android:textColor="#000000"
android:textStyle="bold"
android:gravity="fill"
android:layout_toRightOf="@+id/chkitem"
/>
<TextView
android:layout_width="200dp"
android:layout_height="60dp"
android:id="@+id/detail"
android:textSize="15dp"
android:textStyle="italic"
android:gravity="fill"
android:layout_toRightOf="@+id/chkitem"
android:layout_below="@+id/textTitle"/>
</RelativeLayout>
adapter class
public class list_addr_adapter extends ArrayAdapter<list_addr> {
Context context;
int layoutResourceId;
public list_addr_adapter(Context context, int layoutResourceId, List<list_addr> items) {
super(context, layoutResourceId, items);
this.layoutResourceId = layoutResourceId;
this.context = context;
// this.listener=callback;
}
/*private view holder class*/
private class ViewHolder {
TextView txtTitle;
TextView txtDetail;
}
ViewHolder holder = null;
public View getView(int position, View convertView, ViewGroup parent) {
final list_addr lists = getItem(position);
final int pos=position;
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = mInflater.inflate(R.layout.items_sav_addr2, null);
holder = new ViewHolder();
holder.txtTitle = (TextView) convertView.findViewById(R.id.textTitle);
holder.txtDetail = (TextView) convertView.findViewById(R.id.detail);
convertView.setTag(holder);
} else
holder = (ViewHolder) convertView.getTag();
holder.txtTitle.setText(lists.getTitle());
holder.txtDetail.setText(lists.getDetail());
return convertView;
}
}
I want it to be something like this -
解决方案
Check This:
Xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="120dp"
android:background="#FFFFFF">
<CheckBox
android:id="@+id/chkitem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true" />
<TextView
android:id="@+id/textTitle"
android:layout_width="200dp"
android:layout_height="60dp"
android:layout_toRightOf="@+id/chkitem"
android:gravity="fill"
android:textColor="#000000"
android:textSize="15dp"
android:textStyle="bold" />
<TextView
android:id="@+id/detail"
android:layout_width="200dp"
android:layout_height="60dp"
android:layout_below="@+id/textTitle"
android:layout_toRightOf="@+id/chkitem"
android:gravity="fill"
android:textSize="15dp"
android:textStyle="italic" />
<ImageView
android:id="@+id/imageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerInParent="true"
android:src="@mipmap/ic_launcher" />// Replace Image
</RelativeLayout>
Adapter Class:
public class list_addr_adapter extends ArrayAdapter<list_addr> {
Context context;
int layoutResourceId;
public list_addr_adapter(Context context, int layoutResourceId, List<list_addr> items) {
super(context, layoutResourceId, items);
this.layoutResourceId = layoutResourceId;
this.context = context;
// this.listener=callback;
}
/*private view holder class*/
private class ViewHolder {
TextView txtTitle;
TextView txtDetail;
ImageView imageview;
}
ViewHolder holder = null;
public View getView(int position, View convertView, ViewGroup parent) {
final list_addr lists = getItem(position);
final int pos=position;
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = mInflater.inflate(R.layout.items_sav_addr2, null);
holder = new ViewHolder();
holder.txtTitle = (TextView) convertView.findViewById(R.id.textTitle);
holder.txtDetail = (TextView) convertView.findViewById(R.id.detail);
holder.imageview = (ImageView) convertView.findViewById(R.id.imageview);
convertView.setTag(holder);
} else
holder = (ViewHolder) convertView.getTag();
holder.txtTitle.setText(lists.getTitle());
holder.txtDetail.setText(lists.getDetail());
try {
holder.imageview.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.imageview:
PopupMenu popup = new PopupMenu(getApplicationContext(), v);
popup.getMenuInflater().inflate(R.menu.clipboard_popup,
popup.getMenu());
popup.show();
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
case R.id.edit:
//Or Some other code you want to put here.. This is just an example.
Toast.makeText(getApplicationContext(), " Install Clicked at position " + " : " + position, Toast.LENGTH_LONG).show();
break;
case R.id.delete:
Toast.makeText(getApplicationContext(), "Add to Wish List Clicked at position " + " : " + position, Toast.LENGTH_LONG).show();
break;
default:
break;
}
return true;
}
});
break;
default:
break;
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
return convertView;
}
}
Popup menu.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/install"
android:title="Install" />
<item
android:id="@+id/addtowishlist"
android:title="Add to wishlist" />
</menu>
Refer This: Android List view layout Similar to Google play
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