如何将具有多个ListView的ScrollView添加到抽屉布局（导航抽屉）

时间：2014-08-13 15:23:38

标签： android android-listview navigation-drawer android-scrollview drawerlayout

我正在尝试将导航抽屉添加到k9邮件中，并且这样做是尝试创建具有三个列表视图的导航抽屉，并且我希望每个列表视图使用相同的滚动条，因此它们是静止的，除了它们全部滚动在一起。基本上我希望ListViews像一个列表一样，一起滚动并堆叠在一起。但是，每当我尝试通过this answer将ListViews添加到ScrollView时，我都会收到错误消息。现在，如何在没有抛出错误的情况下在DrawerLayout中使用ScrollView？

抛出错误

08-13 11:11:33.148: E/AndroidRuntime(17586): FATAL EXCEPTION: main
08-13 11:11:33.148: E/AndroidRuntime(17586): Process: com.bernard.beaconportal.activities, PID: 17586
08-13 11:11:33.148: E/AndroidRuntime(17586): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.bernard.beaconportal.activities/com.bernard.beaconportal.activities.activity.MessageList}: java.lang.ClassCastException: android.widget.FrameLayout$LayoutParams cannot be cast to android.support.v4.widget.DrawerLayout$LayoutParams
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2225)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2274)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.app.ActivityThread.access$800(ActivityThread.java:145)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1206)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.os.Handler.dispatchMessage(Handler.java:102)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.os.Looper.loop(Looper.java:136)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.app.ActivityThread.main(ActivityThread.java:5144)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at java.lang.reflect.Method.invokeNative(Native Method)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at java.lang.reflect.Method.invoke(Method.java:515)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:611)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at dalvik.system.NativeStart.main(Native Method)
08-13 11:11:33.148: E/AndroidRuntime(17586): Caused by: java.lang.ClassCastException: android.widget.FrameLayout$LayoutParams cannot be cast to android.support.v4.widget.DrawerLayout$LayoutParams
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.support.v4.widget.DrawerLayout.isDrawerView(DrawerLayout.java:968)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.support.v4.widget.DrawerLayout.closeDrawer(DrawerLayout.java:1169)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at com.bernard.beaconportal.activities.activity.MessageList.selectItem_Inbox(MessageList.java:3048)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at com.bernard.beaconportal.activities.activity.MessageList.onCreate(MessageList.java:706)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.app.Activity.performCreate(Activity.java:5434)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
08-13 11:11:33.148: E/AndroidRuntime(17586):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2179)
08-13 11:11:33.148: E/AndroidRuntime(17586):    ... 11 more

抽屉的xml文件

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff" >

    <FrameLayout
        android:id="@+id/content_frame"
        android:layout_width="wrap_content"
        android:layout_height="match_parent" 
         android:background="@color/white"
        >
        <com.bernard.beaconportal.activities.view.ViewSwitcher 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/container"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" 

        android:background="@color/white">

    <FrameLayout
        android:id="@+id/message_list_container"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" 
       android:clickable="true"
        android:background="@color/white"/>

    <FrameLayout
        android:id="@+id/message_view_container"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" 
        android:clickable="true"
        android:background="@color/white"/>

</com.bernard.beaconportal.activities.view.ViewSwitcher>

    </FrameLayout>


    <com.bernard.beaconportal.activities.activity.VerticalScrollview
        android:layout_height="match_parent"
    android:layout_width="wrap_content"

        >

    <LinearLayout
    android:id="@+id/left_drawer"
    android:layout_height="match_parent"
    android:layout_width="320dp"
    android:orientation="vertical"
    android:layout_gravity="start"
    android:background="#ffffff" 
    android:clickable="true">



    <ListView
        android:id="@+id/listview_inbox"
       android:layout_weight="1"
        android:layout_height="wrap_content" 
        android:layout_width="320dp"
    android:orientation="vertical"
    android:layout_gravity="start"
    android:background="#ffffff"
        android:minHeight="64dip"
       android:layout_alignBottom="@+id/Person"
        android:choiceMode="singleChoice"
        android:divider="#ECF0F1"
        android:dividerHeight="1dp"       
        android:listSelector="@drawable/list_selector"
        />

    <ListView
        android:id="@+id/listview_drawer"
       android:layout_weight="1"
        android:layout_height="wrap_content" 
        android:layout_width="320dp"
    android:orientation="vertical"
    android:layout_gravity="start"
    android:background="#ffffff"
        android:minHeight="64dip"
       android:layout_alignBottom="@+id/Person"
        android:choiceMode="singleChoice"
        android:divider="#ECF0F1"
        android:dividerHeight="1dp"       
        android:listSelector="@drawable/list_selector"
        />

    <ListView
        android:id="@android:id/list"
       android:layout_weight="1"
        android:layout_height="wrap_content" 
        android:layout_width="320dp"
    android:orientation="vertical"
    android:layout_gravity="start"
    android:background="#ffffff"
        android:minHeight="64dip"
       android:layout_alignBottom="@+id/Person"
        android:choiceMode="singleChoice"
        android:divider="#ECF0F1"
        android:dividerHeight="1dp"       
        android:listSelector="@drawable/list_selector"
        />

   </LinearLayout>

  </com.bernard.beaconportal.activities.activity.VerticalScrollview>

</android.support.v4.widget.DrawerLayout>

我也尝试将其设置为scrollview（mDrawerLayout.closeDrawer（mScrollView）;），并引发了另一个错误。

08-15 17:19:57.286: E/AndroidRuntime(2719): FATAL EXCEPTION: main
08-15 17:19:57.286: E/AndroidRuntime(2719): Process: com.bernard.beaconportal.activities, PID: 2719
08-15 17:19:57.286: E/AndroidRuntime(2719): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.bernard.beaconportal.activities/com.bernard.beaconportal.activities.activity.MessageList}: java.lang.NullPointerException
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2225)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2274)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.app.ActivityThread.access$800(ActivityThread.java:145)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1206)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.os.Handler.dispatchMessage(Handler.java:102)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.os.Looper.loop(Looper.java:136)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.app.ActivityThread.main(ActivityThread.java:5144)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at java.lang.reflect.Method.invokeNative(Native Method)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at java.lang.reflect.Method.invoke(Method.java:515)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:611)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at dalvik.system.NativeStart.main(Native Method)
08-15 17:19:57.286: E/AndroidRuntime(2719): Caused by: java.lang.NullPointerException
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.support.v4.widget.DrawerLayout.isDrawerView(DrawerLayout.java:968)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.support.v4.widget.DrawerLayout.closeDrawer(DrawerLayout.java:1169)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at com.bernard.beaconportal.activities.activity.MessageList.selectItem_Inbox(MessageList.java:3151)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at com.bernard.beaconportal.activities.activity.MessageList.onCreate(MessageList.java:718)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.app.Activity.performCreate(Activity.java:5434)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
08-15 17:19:57.286: E/AndroidRuntime(2719):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2179)
08-15 17:19:57.286: E/AndroidRuntime(2719):     ... 11 more
08-15 17:20:01.476: E/k9(2719): Unable to open connection for Lincoln:Drafts/Thread-1312/conn1105736992

包含导航抽屉的活动位于此处：http://pastebin.com/F7ZF3s5M

2 个答案:

答案 0 :(得分：1)

我们不应该在ScrollView中使用ListView，因为列表视图已经是ScrollView，列表视图中的项目已经可以滚动了。

当我们尝试将ListView添加到ScrollView时，我们可能会遇到一个问题，即列表视图只会显示适配器中的一个项目。

解决方案： 计算列表项的大小并以编程方式设置ListView的高度。

public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter(); 
    if (listAdapter == null) {
        // pre-condition
        return;
    }

    int totalHeight = 0;
    for (int i = 0; i < listAdapter.getCount(); i++) {
        View listItem = listAdapter.getView(i, null, listView);
        listItem.measure(0, 0);
        totalHeight += listItem.getMeasuredHeight();
    }

    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
    listView.requestLayout();
}

来源：android-listview-inside-scrollview来自博客的帖子帮助我解决了这个问题。 setListViewHeightBasedOnChildren＆amp; how-can-i-put-a-listview-into-a-scrollview-without-it-collapsing

答案 1 :(得分：0)

所以事实证明使用merge adapter from CommonsGuy是可行的方法，现在问题只是弄清楚如何在列表视图中区别对待每个部分，就像它自己独立的ListView一样。哦，至少我最初的问题已经解决了。

首先下载该库，然后进行设置并导入它。

然后我在onCreate

之前宣布了这个 
private MergeAdapter mergeadapter = null;

然后在onCreate 

mergeadapter = new MergeAdapter();

然后填充最后填充的listView 

public void populateListView(Account[] realAccounts) {
        List<BaseAccount> accounts = new ArrayList<BaseAccount>();

        if (displaySpecialAccounts() && !K9.isHideSpecialAccounts()) {
            BaseAccount unifiedInboxAccount = SearchAccount
                    .createUnifiedInboxAccount(this);
            BaseAccount allMessagesAccount = SearchAccount
                    .createAllMessagesAccount(this);

            accounts.add(unifiedInboxAccount);
            accounts.add(allMessagesAccount);
        }

        accounts.addAll(Arrays.asList(realAccounts));
        AccountsAdapter adapter = new AccountsAdapter(accounts);

        mDrawerList_Inbox = (ListView) findViewById(R.id.listview_inbox);

        mDrawerList_Inbox.setAdapter(adapter);
        mDrawerList_Inbox.invalidate();

        LayoutInflater inflater = getLayoutInflater();

        View header_folders = (View) inflater.inflate(R.layout.header_folders,
                null);

        View header_drawer = (View) inflater.inflate(R.layout.header_drawer,
                null);

        View header_inbox = (View) inflater.inflate(R.layout.header_inbox, null);



                mergeadapter.addView(header_inbox);

                mergeadapter.addAdapter(mAdapter_Accounts);

                mergeadapter.addView(header_drawer);

                 mergeadapter.addAdapter(mMenuAdapter);

                 mergeadapter.addView(header_folders);

                 mergeadapter.addAdapter(mAdapter);

                 mDrawerList.setAdapter(mergeadapter);



    }
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