我正在创建一个CMS应用程序,我想要删除一个项目,因为我需要我在listview项目中隐藏的ID。当我拿着一个listview项目时会弹出一个我点击的删除按钮,这会让我看到这段代码:
@Override
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
switch(item.getItemId()) {
case R.id.delete:
new HttpDelete("http://test.soundwave.drieo.nl/api/content/"+ text + apikey);
return true;
default:
return super.onContextItemSelected(item);
}
}
自定义列表视图:
当按住某个项目时,会显示该代码。 (Verwijderen ==删除)
自定义适配器的自定义行XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:padding="6dip">
<ImageView
android:id="@+id/icon"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:layout_marginEnd="6dip"
android:contentDescription="@string/TODO"/>
<TextView
android:id="@+id/secondLine"
android:layout_width="fill_parent"
android:layout_height="26dip"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_toEndOf="@id/icon"
android:ellipsize="marquee"
android:singleLine="true"
android:text="@string/description"
android:textSize="12sp"
android:visibility="visible"/>
<TextView
android:id="@+id/firstLine"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="@id/secondLine"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:layout_alignWithParentIfMissing="true"
android:layout_toEndOf="@id/icon"
android:gravity="center_vertical"
android:text="@string/Example"
android:textSize="16sp" />
<TextView
android:id="@+id/tbid"
android:layout_width="fill_parent"
android:layout_height="26dip"
android:ellipsize="marquee"
android:singleLine="true"
android:text="@string/ID"
android:textSize="12sp"
android:layout_alignTop="@+id/secondLine"
android:layout_toEndOf="@+id/icon"
android:layout_marginStart="68dp"
android:visibility="invisible"/>
</RelativeLayout>
答案 0 :(得分:1)
试试这个
public boolean onContextItemSelected(MenuItem item){
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)item.getMenuInfo();
switch(item.getItemId()) {
case R.id.delete:
Toast.makeText(MainActivity.this, ((TextView) info.targetView.findViewById(R.id.tbid)).getText().toString(),Toast.LENGTH_SHORT).show();
return true;
default:
return super.onContextItemSelected(item);
}
}
答案 1 :(得分:0)
您需要获取所选项目位置(来自列表视图)
public boolean onContextItemSelected(MenuItem item) {
//...codes
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
int index = info.position;
//... other codes
}
现在使用index
从数据集中获取项目
例如,假设数据集ArrayList
或Array
名为myItems
:
int itemId = myItems.get(index).getId();
//call API using itemId as parameter