我目前有一个包含按钮和EditText视图的列表视图。如何在列表适配器中正确实现OnClickListener，以便在单击每个按钮时通过setVisibility方法隐藏视图中关联的EditText。
基于我在列表适配器中当前对OnClickListener的实现，当我单击一个按钮以在视图中隐藏相应的EditText时，它将在视口中隐藏最后一个EditText，而不是将其隐藏在同一视口中查看为按钮。下面是我的listview xml文件（inspection_single_row.xml），我的列表适配器（InspectionAdapter.java）和主要活动（MainActivity）。
inspection_single_row.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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Was the sink cleaned floors mopped"
android:id="@+id/text_id"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/check_boxes"
android:layout_marginBottom="20dp"
android:gravity="center_horizontal">
<RadioGroup
android:id="@+id/groupRadio"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:orientation="horizontal">
<RadioButton
android:id="@+id/radioComplete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Complete"
android:checked="false"
android:textColor="@color/grey_mid"/>
<RadioButton
android:id="@+id/radioIncomplete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Incomplete"
android:checked="false"
android:textColor="@color/grey_mid"
android:layout_marginLeft="25dp"/>
</RadioGroup>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="click"
android:onClick="clickMe"
android:id="@+id/btn"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="@+id/master_linlayout"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp">
<EditText
android:layout_width="match_parent"
android:layout_height="100dp"
android:layout_marginBottom="20dp"
android:gravity="top"
android:padding="10dp"
android:textSize="14sp"
android:background="@drawable/border2"
android:inputType="textMultiLine"
android:textColor="@color/grey_mid"
android:id="@+id/edit_text"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
InspectionAdapter.java
public class InspectionAdapter extends ArrayAdapter<InspectionObject> {
ArrayList<InspectionObject> arrayList;
Context context;
int Resource;
LayoutInflater layoutInflater;
ProgressHolder holder;
public InspectionAdapter(Context context, int resource, ArrayList<InspectionObject> objects) {
super(context, resource, objects);
this.context = context;
arrayList = objects;
Resource = resource;
layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
private static class ProgressHolder {
public RadioGroup radio_group;
public EditText deficiency_notes;
public TextView inspection_task;
public RadioButton radio_yes;
public RadioButton radio_no;
public LinearLayout master_layout;
public Button my_button;
}
@Override
public View getView(final int position, View convertView, final ViewGroup parent) {
View v = convertView;
holder = new ProgressHolder();
if(v == null)
{
v = layoutInflater.inflate(Resource, null);
holder.radio_group = (RadioGroup)v.findViewById(R.id.groupRadio);
holder.deficiency_notes = (EditText)v.findViewById(R.id.edit_text);
holder.inspection_task = (TextView)v.findViewById(R.id.text_id);
holder.radio_yes = (RadioButton)v.findViewById(R.id.radioComplete);
holder.radio_no = (RadioButton)v.findViewById(R.id.radioIncomplete);
holder.master_layout = (LinearLayout)v.findViewById(R.id.master_linlayout);
holder.my_button = (Button)v.findViewById(R.id.btn);
v.setTag(holder);
}else{
holder = (ProgressHolder)v.getTag();
}
final InspectionObject inspectionObject = arrayList.get(position);
holder.my_button.setTag(position);
holder.deficiency_notes.setTag(position);
holder.my_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int pos = (Integer) v.getTag(); //the real and updated position
Log.i("ConfirmAdapter","Button @ position : " + pos);
Log.i("ConfirmAdapter","EditText @ position : " + holder.deficiency_notes.getTag());
}
});
return v;
}
}
MainActivity.java
public class MainActivity extends AppCompatActivity {
ListView lv;
InspectionAdapter inspection_adapter;
ArrayList<InspectionObject> inspectionList;
Boolean eval;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = findViewById(R.id.listView2);
inspectionList = new ArrayList<InspectionObject>();
inspectionList = new ArrayList<InspectionObject>();
inspectionList.add(new InspectionObject(true, "", "Were the floor mopped?"));
inspectionList.add(new InspectionObject(true, "", "Were the mirrors cleaned?"));
inspectionList.add(new InspectionObject(false, "", "Were the toilets cleaned?"));
inspectionList.add(new InspectionObject(true, "", "Was high/low dusting performed?"));
inspection_adapter = new InspectionAdapter(getApplicationContext(), R.layout.inspection_single_row, inspectionList);
lv.setAdapter(inspection_adapter);
}
}
答案 0 :(得分：1)
编辑： 在此部分
<select id="fetchPaymentWorkingALL" resultMap="paymentWorkingALL" parameterType="java.util.Map">
...
</select>
您仍在引用最后创建的Holder变量。如我之前所说：在getView中，对于每个视图，您都将创建一个新的ProgressHolder并将其分配给holder变量。因此，每次调用getView时，holder都会被覆盖。因此，Log.i提供了您的最后一项。
尝试以下操作：
在if子句中放入新的ProgressHolder。
Log.i("ConfirmAdapter","EditText @ position : " + holder.deficiency_notes.getTag())
这样，它仅在视图为null时创建一个新实例。
您可以像这样将按钮设置为固定器，而不是设置按钮的标签
if(v == null)
{
holder = new ProgressHolder();
您不需要为EditText设置标签。
然后在onClick中，您可以通过getTag（）获得相应的ProgressHolder实例，并按如下所示更改可见性：
holder.my_button.setTag(holder);