Java ViewPager作为ListView的行

我试图实现一个ListView，每一行都作为自己的ViewPager。然而，我在片段中有ListView，它是选项卡式ViewPager的一部分。因此，总体上有3个可滑动的选项卡，每个选项卡都有一个ViewPagers列表视图。奇怪的是，它可以在我的模拟器上运行，但不能在我的手机上运行。有人知道为什么或如何修复它吗？下面是一些代码：

Main.java

// Create the adapter that will return a fragment for each of the three primary sections
// of the app.
mAppSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

// Set up the action bar.
final ActionBar actionBar = getActionBar();

// Specify that the Home/Up button should not be enabled, since there is no hierarchical
// parent.
int currentapiVersion = android.os.Build.VERSION.SDK_INT;
if(currentapiVersion >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
    actionBar.setHomeButtonEnabled(false);
}
// Specify that we will be displaying tabs in the action bar.
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

// Set up the ViewPager, attaching the adapter and setting up a listener for when the
// user swipes between sections.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mAppSectionsPagerAdapter);
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
    @Override
    public void onPageSelected(int position) {
        // When swiping between different app sections, select the corresponding tab.
        // We can also use ActionBar.Tab#select() to do this if we have a reference to the
        // Tab.
        actionBar.setSelectedNavigationItem(position);
    }
});

// For each of the sections in the app, add a tab to the action bar.
for (int i = 0; i < mAppSectionsPagerAdapter.getCount(); i++) {
    // Create a tab with text corresponding to the page title defined by the adapter.
    // Also specify this Activity object, which implements the TabListener interface, as the
    // listener for when this tab is selected.
    actionBar.addTab(
            actionBar.newTab()
            .setText(mAppSectionsPagerAdapter.getPageTitle(i))
            .setTabListener(this));
}

fragment_viewpager.xml

<?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" >

    <RelativeLayout
        android:id="@+id/relativeLayout1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="15dp"
        android:background="@drawable/layer_card_background"
        android:orientation="vertical" >

        <android.support.v4.view.ViewPager
            android:id="@+id/layout_main"
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:layout_alignParentLeft="true"
            android:layout_alignParentRight="true" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentRight="true"
            android:layout_below="@+id/layout_main"
            android:gravity="center" >

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_weight=".5" >

                <TextView
                    android:id="@+id/textView2"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentTop="true"
                    android:layout_centerHorizontal="true"
                    android:padding="25dp"
                    android:text="20"
                    android:textSize="18sp" />
            </RelativeLayout>

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_weight=".5" >

                <TextView
                    android:id="@+id/textView4"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentTop="true"
                    android:layout_centerHorizontal="true"
                    android:padding="25dp"
                    android:text="15"
                    android:textSize="18sp" />

                <TextView
                    android:id="@+id/textView1"
                    android:layout_width="1dp"
                    android:layout_height="wrap_content"
                    android:layout_alignBottom="@+id/textView4"
                    android:layout_alignParentLeft="true"
                    android:layout_alignParentTop="true"
                    android:layout_marginBottom="2dp"
                    android:background="#58232323" />
            </RelativeLayout>
        </LinearLayout>
    </RelativeLayout>

    <de.passsy.holocircularprogressbar.HoloCircularProgressBar
        android:id="@+id/hcpb_ingredient"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true" />

</RelativeLayout>

事实证明，这段代码确实有效！我只是用一个片段填充了我的ViewPager，所以没有什么可以滚动到的

你想做的是个坏主意。

ViewPager

是一个非常昂贵的

视图

，将它们放在

列表视图中只会导致延迟、结巴和细微的错误。在旧设备上，它甚至可能导致
OutOfMemoryExceptions
。我在三个选项卡中的每个选项卡上测试了300多个viewpagers，总共900个viewpagers，没有延迟。但是我不打算每页显示超过10个
if(getItem(position).isResponded()) {
    items.add(new ViewPagerItem(getItem(position), colors[position % 5]));
    items.add(new ViewPagerItem(getItem(position), colors[position % 5]));
} else {
    items.add(new ViewPagerItem(getItem(position), colors[position % 5]));
}

ViewPager viewPager = (ViewPager) row.findViewById(R.id.layout_main);
SentViewPagerAdapterWithView tempMyFriendPagerAdapter = new SentViewPagerAdapterWithView(activity, items);
viewPager.setAdapter(tempMyFriendPagerAdapter);

<?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" >

    <RelativeLayout
        android:id="@+id/relativeLayout1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="15dp"
        android:background="@drawable/layer_card_background"
        android:orientation="vertical" >

        <android.support.v4.view.ViewPager
            android:id="@+id/layout_main"
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:layout_alignParentLeft="true"
            android:layout_alignParentRight="true" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentRight="true"
            android:layout_below="@+id/layout_main"
            android:gravity="center" >

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_weight=".5" >

                <TextView
                    android:id="@+id/textView2"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentTop="true"
                    android:layout_centerHorizontal="true"
                    android:padding="25dp"
                    android:text="20"
                    android:textSize="18sp" />
            </RelativeLayout>

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_weight=".5" >

                <TextView
                    android:id="@+id/textView4"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentTop="true"
                    android:layout_centerHorizontal="true"
                    android:padding="25dp"
                    android:text="15"
                    android:textSize="18sp" />

                <TextView
                    android:id="@+id/textView1"
                    android:layout_width="1dp"
                    android:layout_height="wrap_content"
                    android:layout_alignBottom="@+id/textView4"
                    android:layout_alignParentLeft="true"
                    android:layout_alignParentTop="true"
                    android:layout_marginBottom="2dp"
                    android:background="#58232323" />
            </RelativeLayout>
        </LinearLayout>
    </RelativeLayout>

    <de.passsy.holocircularprogressbar.HoloCircularProgressBar
        android:id="@+id/hcpb_ingredient"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true" />

</RelativeLayout>