我想最初在列表视图中隐藏编辑文本和按钮字段，并在单击该原始文件时在列表视图中显示特定原始文件的编辑文本和按钮。所以我尝试在布局 xml 中将高度设置为 0，然后设置它当用户单击原始数据时，将其更改为其他值，但它不起作用我认为我的列表视图单击事件不起作用。在我有列表视图的 Android 布局中，有图像视图作为按钮，也可以编辑文本字段和列表视图。如下
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainPortal" >
<ListView
android:id="@+id/employeeListView"
android:layout_width="650dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="25dp"
android:clickable="true">
</ListView>
<EditText
android:id="@+id/empPin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/iv_start_journey_btn"
android:layout_marginBottom="56dp"
android:layout_marginRight="17dp"
android:layout_toLeftOf="@+id/employeeListView"
android:ems="10"
android:inputType="number"
android:hint="@string/add_emp_pin_hint" >
<requestFocus />
</EditText>
<ImageView
android:id="@+id/iv_start_journey_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/employeeListView"
android:layout_alignRight="@+id/empPin"
android:layout_marginBottom="84dp"
android:onClick="startJourney"
android:src="@drawable/start" />
</RelativeLayout>
我为列表视图使用了以下自定义布局
<?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="match_parent"
android:orientation="vertical" >
<ImageView
android:id="@+id/emp_avatar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="18dp"
android:adjustViewBounds="true"
android:maxHeight="80dp"
android:maxWidth="80dp"
android:src="@drawable/person" />
<TextView
android:id="@+id/emp_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/emp_avatar"
android:layout_toRightOf="@+id/emp_avatar"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/empPin"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_alignBottom="@+id/emp_avatar"
android:layout_alignRight="@+id/emp_number"
android:layout_toRightOf="@+id/emp_avatar"
android:ems="10"
android:inputType="number" >
<requestFocus />
</EditText>
<Button
android:id="@+id/empAdd"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_alignBaseline="@+id/empPin"
android:layout_alignBottom="@+id/empPin"
android:layout_marginLeft="20dp"
android:layout_toRightOf="@+id/empPin"
android:text="@string/emp_add_btn" />
这里我贴出Activity.java的代码。
public class MainPortal extends Activity {
private List<Employee> employees = new ArrayList<Employee>();
EditText et;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_portal);
populateEmployeeList();
//populsteListView();
ListView list = (ListView) findViewById(R.id.employeeListView);
ArrayAdapter<Employee> adapter = new MylistAdapter();
list = (ListView) findViewById(R.id.employeeListView);
list.setAdapter(adapter);
list.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
//I ADDED ON CLICK IMPLEMENTATION HERE, BUT THIS IS NOT WORKING
Toast.makeText(getApplicationContext(), "CLICKED", Toast.LENGTH_SHORT).show();
}
});
private void populateEmployeeList() {
...
}
private class MylistAdapter extends ArrayAdapter<Employee>{
public MylistAdapter(){
super(MainPortal.this,R.layout.item_view,employees);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View itemView = convertView;
if(itemView==null){
itemView = getLayoutInflater().inflate(R.layout.item_view, parent,false);
}
Employee currentEmployee = employees.get(position);
//Avatar
ImageView imageView = (ImageView) itemView.findViewById(R.id.emp_avatar);
imageView.setImageResource(currentEmployee.getAvatarId());
//Employee number
TextView emp_id = (TextView) itemView.findViewById(R.id.emp_number);
emp_id.setText(currentEmployee.getId());
et = (EditText) itemView.findViewById(R.id.empPin);
return itemView;
}
}
}
上面我发布了一些我认为重要的代码。任何人都可以帮我完成这项任务。提前致谢。