Question

我遇到一个问题，某些设备无法选择列表视图项，而我似乎无法解决代码中出现的问题 - 选择listview项可以在我的设备和模拟器上正常工作。我已经检查了焦点，但这似乎不是问题。有人有什么想法吗？

public class GroupListFragment扩展了ListFragment

  @Override
  public void onListItemClick(ListView listView, View view, int position, long id) {
    super.onListItemClick(listView, view, position, id);

    Group group = (Group) listView.getItemAtPosition(position);
    mCallbacks.onItemSelected(group);
  }

public class GroupListActivity extends FragmentActivity实现了GroupListFragment.Callbacks

  @Override
  public void onItemSelected(Group group) {

      if (twoPaneLayout) {
        // seems to work fine
        Bundle arguments = new Bundle();
        arguments.putLong(GroupDetailFragment.GROUP_ITEM_ID, group.getId());

        GroupDetailFragment fragment = new GroupDetailFragment();
        fragment.setArguments(arguments);
        replaceDetailPane(fragment);
      } else {
        // does not work on some mobile devices
        Intent detailIntent = new Intent(this, GroupDetailActivity.class);
        detailIntent.putExtra(GroupDetailFragment.GROUP_ITEM_ID, group.getId());

        startActivity(detailIntent);
        overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_left);
      }

  }

列表视图：

<?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:animateLayoutChanges="true"
    android:background="@drawable/list_item_group_background" >

    <ListView
        android:id="@id/android:list"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:divider="@null"
        android:dividerHeight="0dp"
        android:verticalScrollbarPosition="left" />

    <TextView
        android:id="@id/android:empty"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:textIsSelectable="false" />

</LinearLayout>

自定义项目：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:focusable="false"
    android:focusableInTouchMode="false"
    android:gravity="center_vertical"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/list_item_group_item_background"
        android:focusable="false"
        android:focusableInTouchMode="false"
        android:gravity="center_vertical"
        android:orientation="horizontal"
        android:paddingBottom="10dp"
        android:paddingLeft="15dp"
        android:paddingRight="15dp"
        android:paddingTop="10dp"
        tools:ignore="HardcodedText" >

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:focusable="false"
            android:focusableInTouchMode="false"
            android:gravity="center_vertical"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/list_item_group_name"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:focusable="false"
                android:focusableInTouchMode="false"
                android:singleLine="true"
                android:text="User 22222222222222222222123456789012345"
                android:textColor="@drawable/list_item_group_item_header_text"
                android:textSize="16sp"
                android:textStyle="bold"
                android:typeface="sans" />

            <TextView
                android:id="@+id/list_item_group_status"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:focusable="false"
                android:focusableInTouchMode="false"
                android:singleLine="true"
                android:text="Group status..."
                android:textColor="@drawable/list_item_group_item_status_text"
                android:textSize="12sp"
                android:typeface="sans" />
        </LinearLayout>

        <TextView
            android:id="@+id/list_item_group_callout"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="5dp"
            android:background="@drawable/callout_background"
            android:focusable="false"
            android:focusableInTouchMode="false"
            android:gravity="center"
            android:singleLine="true"
            android:text="new"
            android:textColor="@drawable/callout_text"
            android:textSize="10sp"
            android:textStyle="bold"
            android:typeface="sans" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/list_item_group_toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/list_item_group_toolbar_background"
        android:baselineAligned="false"
        android:focusable="false"
        android:focusableInTouchMode="false"
        android:orientation="horizontal"
        android:padding="5dp" >

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:focusable="false"
            android:focusableInTouchMode="false"
            android:gravity="center" >

            <Button
                android:id="@+id/list_item_group_edit"
                android:layout_width="35dp"
                android:layout_height="35dp"
                android:background="@drawable/list_item_group_edit_background"
                android:focusable="false"
                android:focusableInTouchMode="false" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:focusable="false"
            android:focusableInTouchMode="false"
            android:gravity="center" >

            <Button
                android:id="@+id/list_item_group_delete"
                android:layout_width="35dp"
                android:layout_height="35dp"
                android:background="@drawable/list_item_group_delete_background"
                android:focusable="false"
                android:focusableInTouchMode="false" />
        </LinearLayout>
    </LinearLayout>

Answer 1

我已将代码更改为以下内容，现在正在运行。

@Override
  public void onStart() {
    super.onStart();
    getListView().setOnItemClickListener(new OnItemClickListener() {

      @Override
      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Group group = (Group) getListView().getItemAtPosition(position);
        mCallbacks.onItemSelected(group);
      }
    });
  }

我不确定为什么将click侦听器移动到onStart（）方法已经有效，但它有。

Android ListView问题

1 个答案: