我使用ListView生成了SimpleAdapter。我在父RelativeLayouts内有2个孩子LinearLayou。我最初使用id多彩不可见的布局。
我想在点击listview行时显示此布局。我已经完成了以下编码，但问题在于，无论我点击哪个行，多彩的布局都只在第一行显示，而不是在点击的行上。
谁能指导我一步一步做什么？我的代码如下：
senttask.java
public class senttask extends Fragment {
public senttask() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.sentaskfragment, container,
false);
String font="font/Dosis-SemiBold.otf";
//String font2="font/Dosis-SemiBold.otf";
final Typeface tp=Typeface.createFromAsset(getActivity().getAssets(), font);
ListView sent=(ListView)view.findViewById(R.id.listViewtasksent);
final Databasehandler2 db=new Databasehandler2(getActivity().getApplicationContext());
HashMap<String, String> c=db.getAddedContacts();
String name=c.get("ph");
ArrayList<HashMap<String, String>>val=new ArrayList<HashMap<String,String>>();
val=db.getTaskSent(name);
ListAdapter k=new SimpleAdapter(getActivity(),val,R.layout.senttaskdata2,new String[]{"rname","heading","desc","id","path","receiver","sender"},new int[]{R.id.textView1,R.id.textView2,R.id.textView3,R.id.hide1,R.id.hide2,R.id.hide3,R.id.hide4})
{
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
final View v = super.getView(position, convertView, parent);
TextView myname=(TextView)v.findViewById(R.id.textView1);
TextView mydes=(TextView)v.findViewById(R.id.textView2);
TextView mytopic=(TextView)v.findViewById(R.id.textView3);
myname.setTypeface(tp);
mydes.setTypeface(tp);
mytopic.setTypeface(tp);
return v;
}
};
sent.setAdapter(k);
sent.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
RelativeLayout r=(RelativeLayout)arg0.findViewById(R.id.colorful);
r.setVisibility(arg0.VISIBLE);
}
});
return view;
}
}
senttaskdata2.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="70dp"
android:background="@android:color/transparent" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="8dp"
android:src="@drawable/test2" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView2"
android:layout_below="@+id/textView2"
android:text="TextView"
android:textColor="@android:color/darker_gray"
android:textSize="11sp" />
<TextView
android:id="@+id/hide1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/textView1"
android:layout_alignParentRight="true"
android:text="Small Text"
android:textAppearance="?android:attr/textAppearanceSmall"
android:visibility="gone" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_toRightOf="@+id/imageView1"
android:text="TextView"
android:textSize="16sp" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/imageView1"
android:layout_toRightOf="@+id/imageView1"
android:text="TextView"
android:textColor="@android:color/darker_gray"
android:textSize="11sp" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="70dp"
android:visibility="gone"
android:id="@+id/colorful"
>
<ImageView
android:id="@+id/imageView2"
android:layout_width="80dp"
android:layout_height="70dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:background="@color/dblue"
android:src="@drawable/ic_status" />
<ImageView
android:id="@+id/ImageView01"
android:layout_width="80dp"
android:layout_height="70dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:background="@color/dblue"
android:src="@drawable/ic_status" />
<ImageView
android:id="@+id/ImageView02"
android:layout_width="80dp"
android:layout_height="70dp"
android:layout_alignParentTop="true"
android:layout_toRightOf="@+id/imageView2"
android:background="@color/yellow"
android:adjustViewBounds="true"
android:scaleType="centerInside"
android:src="@drawable/ic_reminder" />
<ImageView
android:id="@+id/ImageView03"
android:layout_width="80dp"
android:layout_height="70dp"
android:adjustViewBounds="true"
android:layout_alignParentTop="true"
android:scaleType="centerInside"
android:layout_toRightOf="@+id/ImageView02"
android:background="@color/green"
android:src="@drawable/ic_action_edit" />
<ImageView
android:id="@+id/ImageView04"
android:layout_width="80dp"
android:layout_height="70dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:background="@color/dblue"
android:adjustViewBounds="true"
android:scaleType="centerInside"
android:src="@drawable/ic_status" />
<ImageView
android:id="@+id/ImageView05"
android:layout_width="80dp"
android:layout_height="70dp"
android:scaleType="centerInside"
android:adjustViewBounds="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="@color/red"
android:src="@drawable/del" />
</RelativeLayout>
senttaskfragment.xml
<?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="fill_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/listViewtasksent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
</ListView>
答案 0 :(得分：1)
行：
RelativeLayout r=(RelativeLayout)arg0.findViewById(R.id.colorful);
r.setVisibility(arg0.VISIBLE);
将始终引用RelativeLayout的第一个可见行中的ListView，因为arg0代表ListView（所有行最终都是相同的id，因此将返回具有该id的视图的第一次出现）。您不需要在整个RelativeLayout中查找目标ListView，而是需要在实际点击的行视图中查找它，该视图也会将该回调作为arg1参数传递。这样你就可以：
RelativeLayout r=(RelativeLayout)arg1.findViewById(R.id.colorful);
r.setVisibility(arg0.VISIBLE);