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我已经通过添加一些额外的视图来修改此tutorial,我现在要做的是将图像视图的可见性设置为仅在最后一组中隐藏,在expandablelistview中隐藏最后一组视图
集团布局是这样的
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="10dp" >
<TextView
android:id="@+id/laptop"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:paddingLeft="25dp" />
<CheckBox
android:id="@+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:focusable="false"
android:text=" " />
<ImageView
android:id="@+id/delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/checkBox1"
android:layout_toLeftOf="@+id/checkBox1"
android:contentDescription="@string/app_name"
android:src="@android:drawable/ic_delete" />
</RelativeLayout>
,并在那里我试图隐藏视图中的代码是这样
public View getGroupView(final int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String laptopName = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.group_item, null);
}
TextView item = (TextView) convertView.findViewById(R.id.laptop);
item.setTypeface(null, Typeface.BOLD);
item.setText(laptopName);
ImageView delete = (ImageView) convertView.findViewById(R.id.delete);
if (groupPosition == getGroupCount()-1) {
delete.setVisibility(View.INVISIBLE);
}
delete.setOnClickListener(new OnClickListener() {
int gpos = groupPosition;
public void onClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(
context);
builder.setMessage("Do you want to remove?");
builder.setCancelable(false);
builder.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
}
});
builder.setNegativeButton("No",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
dialog.cancel();
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
});
return convertView;
}
仅滚动列表后,问题发生时,厕所Ks喜欢它与视图的回收有关,我不知道我该如何处理它,你能帮助我吗?