java - Android 列表 onListItemClick 不起作用

Question

我有一个新的列表，其中包含需要单击的内容，但这个列表不起作用。 onListItemClick 永远不会被调用。我的应用程序中有另一个已按预期工作的应用程序，但我不知道有什么区别。我见过有人说要改变焦点，但我尝试了很多不同的方法，但没有效果。这是一些代码。

工作:

@Override
protected void onListItemClick(ListView l, View v, int position, long id)
{
    super.onListItemClick(l, v, position, id);

    // get the item that was clicked
    v_ProjectInvestigatorSiteContact project = (v_ProjectInvestigatorSiteContact) this.getListAdapter().getItem(
            position);

    Intent myIntent = new Intent(this, Details.class);

    myIntent.putExtra(res.getString(R.string.project), project);

    startActivity(myIntent);
}// onListItemClick

不工作:

    @Override
protected void onListItemClick(ListView l, View v, int position, long id)
{
    super.onListItemClick(l, v, position, id);

    // get the item that was clicked
    final v_SitePeople vSitePeople = (v_SitePeople) this.getListAdapter().getItem(
            position);

    AlertDialog.Builder builder = new AlertDialog.Builder(Share.this);
    builder.setTitle(res.getString(R.string.forgot_password_check_dialog_title))
            .setMessage(res.getString(R.string.share_check_dialog_text))
            .setPositiveButton(res.getString(R.string.send), new DialogInterface.OnClickListener()
            {
                @Override
                public void onClick(DialogInterface dialog, int which)
                {
                    sendShareEmail(vSitePeople);
                }
            }).setNegativeButton(res.getString(R.string.cancel), new DialogInterface.OnClickListener()
            {
                @Override
                public void onClick(DialogInterface dialog, int which)
                {
                    // cancelled, so do nothing
                }
            });
    AlertDialog msgBox = builder.create();
    msgBox.show();
}// onListItemClick

工作 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:background="#ffffffff"
android:orientation="vertical" >

<!-- dummy item to prevent edittext from gaining focus on activity start -->

<LinearLayout
    android:layout_width="0px"
    android:layout_height="0px"
    android:focusable="true"
    android:focusableInTouchMode="true" />

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/title_background" >

    <ImageView
        android:id="@+id/logo"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_centerVertical="true"
        android:layout_marginLeft="5dp"
        android:scaleType="centerCrop"
        android:src="@drawable/ic_logo" >
    </ImageView>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@+id/logo" 
        android:gravity="center"
        android:paddingBottom="5dp"
        android:paddingLeft="50dp"
        android:paddingRight="60dp"
        android:paddingTop="5dp"
        android:text="@string/app_header"
        android:textColor="#ffffffff"
        android:textSize="15sp"
        android:textStyle="bold" />
</RelativeLayout>

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/search_gradient" >

    <ImageView
        android:id="@+id/searchBoxIcon"
        android:layout_width="38dp"
        android:layout_height="38dp"
        android:layout_centerVertical="true"
        android:layout_marginLeft="5dp"
        android:layout_marginRight="5dp"
        android:scaleType="centerCrop"
        android:src="@drawable/action_search" >
    </ImageView>

    <EditText
        android:id="@+id/searchBox"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerVertical="@+id/searchBoxIcon"
        android:layout_marginRight="8dp"
        android:layout_marginTop="4dp"
        android:layout_toRightOf="@+id/searchBoxIcon"
        android:background="@drawable/search_box"
        android:hint="@string/search_hint"
        android:inputType="text"
        android:maxLines="1"
        android:minHeight="30sp"
        android:paddingBottom="2dp"
        android:paddingLeft="25sp"
        android:paddingTop="2dp"
        android:textColor="#ff000000" />
</RelativeLayout>

<ListView
    android:id="@id/android:list"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:background="@color/divider_gray"
    android:cacheColorHint="#00000000"
    android:divider="@color/divider_gray"
    android:dividerHeight="1dp"
    android:footerDividersEnabled="false"
    android:headerDividersEnabled="false" />

<TextView
    android:id="@+id/android:empty"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:text="@string/loading"
    android:textColor="@color/loading_gray"
    android:textSize="20sp" />

</LinearLayout>

XML 不工作

<?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:background="#ffffffff"
android:orientation="vertical" >

<!-- dummy item to prevent edittext from gaining focus on activity start -->

<LinearLayout
    android:layout_width="0px"
    android:layout_height="0px"
    android:focusable="true"
    android:focusableInTouchMode="true" />

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/title_background" >

    <ImageView
        android:id="@+id/logo"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_centerVertical="true"
        android:layout_marginLeft="5dp"
        android:scaleType="centerCrop"
        android:src="@drawable/ic_logo" >
    </ImageView>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@+id/logo"
        android:gravity="center"
        android:paddingBottom="5dp"
        android:paddingLeft="50dp"
        android:paddingRight="60dp"
        android:paddingTop="5dp"
        android:text="@string/share_header"
        android:textColor="#ffffffff"
        android:textSize="15sp"
        android:textStyle="bold" />
</RelativeLayout>

<ListView
    android:id="@id/android:list"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:background="@color/divider_gray"
    android:cacheColorHint="#00000000"
    android:divider="@color/divider_gray"
    android:dividerHeight="1dp"
    android:footerDividersEnabled="false"
    android:headerDividersEnabled="false" />

<TextView
    android:id="@+id/android:empty"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:text="@string/loading"
    android:textColor="@color/loading_gray"
    android:textSize="20sp" />

</LinearLayout>

这里有更多关于损坏的工作原理的信息，以防万一您需要更多代码。

行 XML 不工作

<?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="?android:attr/listPreferredItemHeight"
android:layout_weight="1"
android:baselineAligned="false"
android:orientation="vertical"
android:padding="6dp"
android:background="#ffffffff"
android:layout_margin="10dp" >

<TextView
    android:id="@+id/toptext"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_toLeftOf="@id/moreInfo"
    android:gravity="center_vertical"
    android:minHeight="20sp"
    android:textColor="#ff000000"
    android:textStyle="bold" />

</RelativeLayout>

View 适配器不工作

    @Override
public View getView(int position, View convertView, ViewGroup parent)
{
    ViewHolder holder = null;
    if (convertView == null)
    {
        holder = new ViewHolder();

        LayoutInflater vi = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        convertView = vi.inflate(R.layout.share_row, null);
        convertView.setTag(holder);
    }// if
    else
    {
        holder = (ViewHolder) convertView.getTag();
    }

    v_SitePeople i = items.get(position);

    if (i != null)
    {
        TextView topText = (TextView) convertView.findViewById(R.id.toptext);
        topText.setGravity(Gravity.CENTER_VERTICAL);
        topText.setMinHeight(40);
        if (topText != null)
        {
            if (i.SitePerson != null)
            {
                if (i.PersonTitle != null)
                {
                    topText.setText(String.format(i.SitePerson + ", " + i.PersonTitle));
                }
                else
                {
                    topText.setText(i.SitePerson);
                }
            }// if has ProtocolNumber
            else
            {
                if (i.Nickname != null)
                {
                    topText.setText(i.Nickname);
                }
            }// if does not have ProtocolNumber
        }// if
    }// if
    return convertView;
}// getView

非常感谢您的帮助。

Answer 1

我明白了。我从未发布过相关代码，否则我相信你们会为我找到它。

我不工作的适配器有一个从功能正常的适配器复制的 isEnabled 方法，该方法禁用了类型 0 的项目。但由于我的新列表只是一种类型，因此所有内容都被禁用。

抱歉给您带来麻烦，感谢您的努力。