我的列表视图问题下的Android额外空白空间

Question

我在我的 android 应用程序中需要一些帮助。我在滚动视图中有 2 个列表视图。我希望我的列表视图不可滚动以查看我所有的列表视图项目。所以这是我列出所有项目的代码：

public class CustomList extends ListView
{

boolean expanded = false;

public CustomList(Context context)
{
    super(context);
}

public CustomList(Context context, AttributeSet attrs)
{
    super(context, attrs);
}

public CustomList(Context context, AttributeSet attrs,int defStyle)
{
    super(context, attrs, defStyle);
}

public boolean isExpanded()
{
    return expanded;
}

@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
    // HACK! TAKE THAT ANDROID!
    if (isExpanded())
    {
        // Calculate entire height by providing a very large height hint.
        // But do not use the highest 2 bits of this integer; those are
        // reserved for the MeasureSpec mode.
        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, expandSpec);

        ViewGroup.LayoutParams params = getLayoutParams();
        params.height = getMeasuredHeight();
    }
    else
    {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
}

public void setExpanded(boolean expanded)
{
    this.expanded = expanded;
}
}

这是我的 .xml：

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/scroll"
android:paddingLeft="12dp"
android:paddingRight="12dp"
android:layout_width="match_parent"
android:layout_height="fill_parent">

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:paddingLeft="5dp"
    android:paddingRight="5dp"
   tools:context="com.example.cagri.mobilyateknikservis.BildirimActivity"
    android:orientation="vertical"
    android:id="@+id/activity_bildirim">

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:text="Müşteri:"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/MusteriAdi"
            android:layout_alignParentTop="true"
            android:layout_alignParentStart="true"
            android:textColor="@android:color/holo_red_dark"
            android:textStyle="normal|bold"
            android:layout_weight="1"
            android:gravity="center_vertical" />

        <TextView
            android:text="TextView"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/txtMusteri"
            android:layout_weight="1"
            android:textSize="12sp"
            android:textColor="@android:color/background_dark"
            android:textAlignment="textStart" />

        <TextView
            android:text="Hizmet Tipi:"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/HizmetTipi"
            android:textColor="@android:color/holo_red_dark"
            android:layout_alignParentTop="true"
            android:textStyle="normal|bold"
            android:layout_weight="1" />

        <TextView
            android:text="TextView"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/txtHizmetTipi"
            android:layout_weight="1"
            android:textSize="12sp"
            android:textColor="@android:color/background_dark"
            android:textAlignment="textStart" />

        <TextView
            android:text="Sipariş Ref. No."
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/SiparisRef"
            android:textColor="@android:color/holo_red_dark"
            android:layout_alignParentTop="true"
            android:textStyle="normal|bold"
            android:layout_weight="1" />

        <TextView
            android:text="TextView"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/txtSiparisRef"
            android:layout_weight="1"
            android:textSize="12sp"
            android:textColor="@android:color/background_dark"
            android:textAlignment="textStart" />

    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:text="Firma:"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/Firma"
            android:layout_weight="1"
            android:textColor="@android:color/holo_red_dark"
            android:textStyle="normal|bold" />

        <TextView
            android:text="Firma"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/txtFirma"
            android:layout_weight="2"
            android:textColor="@android:color/background_dark"
            android:textSize="12sp"
            android:textAlignment="viewStart" />

        <TextView
            android:text="Sipariş Tarihi:"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/SiparisTarihi"
            android:layout_weight="1"
            android:textColor="@android:color/holo_red_dark"
            android:textStyle="normal|bold" />

        <TextView
            android:text="Sipariş Tarihi"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/txtSiparisTarihi"
            android:layout_weight="2"
            android:textColor="@android:color/background_dark"
            android:textSize="12sp"
            android:textAlignment="viewStart" />

        <TextView
            android:text="Teslim Tarihi:"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/TeslimTarihi"
            android:layout_weight="1"
            android:textColor="@android:color/holo_red_dark"
            android:textStyle="normal|bold" />

        <TextView
            android:text="Teslim Tarihi"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/txtTeslimTarihi"
            android:layout_weight="2"
            android:textColor="@android:color/background_dark"
            android:textSize="12sp"
            android:textAlignment="viewStart" />

    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:text="Depo:"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/Depo"
            android:layout_weight="1"
            android:textColor="@android:color/holo_red_dark"
            android:textStyle="normal|bold" />

        <TextView
            android:text="Depo"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:id="@+id/txtDepo"
            android:layout_weight="0.98"
            android:textColor="@android:color/background_dark"
            android:textSize="12sp"
            android:gravity="center_vertical" />

        <TextView
            android:text="Telefon:"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/Telefon"
            android:layout_weight="1"
            android:textStyle="normal|bold"
            android:textColor="@android:color/holo_red_dark"
            android:textAlignment="viewStart" />

        <TextView
            android:text="Telefon"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:id="@+id/txtTelefon"
            android:layout_weight="8.5"
            android:textSize="12sp"
            android:textColor="@android:color/background_dark"
            android:gravity="center_vertical" />

    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:text="Adres:"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:id="@+id/Adres"
            android:layout_weight="0.99"
            android:textStyle="normal|bold"
            android:textColor="@android:color/holo_red_dark"
            android:textAllCaps="false"
            android:gravity="center_vertical" />

        <TextView
            android:text="Adres"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:id="@+id/txtAdres"
            android:layout_weight="14.01"
            android:textSize="12sp"
            android:textColor="@android:color/background_dark"
            android:gravity="center_vertical" />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:text="Açıklama:"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:id="@+id/Aciklama"
            android:layout_weight="1"
            android:textStyle="normal|bold"
            android:textColor="@android:color/holo_red_dark"
            android:gravity="center_vertical" />

        <TextView
            android:text="Açıklama"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:id="@+id/txtAciklama"
            android:layout_weight="9"
            android:textColor="@android:color/background_dark"
            android:textSize="12sp"
            android:gravity="center_vertical" />

    </LinearLayout>

    <TextView
        android:text="İŞLEMLER"
        android:layout_width="match_parent"
        android:gravity="center_vertical"
        android:id="@+id/Islemler"
        android:textAlignment="center"
        android:background="@android:color/white"
        android:textColor="@color/colorAccent"
        android:layout_height="30dp" />

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:paddingLeft="10dp"
        android:paddingRight="10dp"
        android:layout_height="match_parent">

        <TextView
            android:text="İşlem"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/Islem"
            android:layout_weight="1"
            android:textAlignment="textStart"
            android:textColor="@android:color/holo_red_dark"
            android:maxWidth="100dp"
            android:minWidth="100dp"
            android:width="100dp" />

        <TextView
            android:text="Açıklama"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/Aciklama2"
            android:layout_weight="4"
            android:textAlignment="textStart"
            android:textColor="@android:color/holo_red_dark"
            android:minWidth="180dp"
            android:width="180dp"
            android:maxWidth="180dp" />

        <TextView
            android:text="Sonuç"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/Sonuc"
            android:layout_weight="1.7"
            android:textAlignment="textStart"
            android:textColor="@android:color/holo_red_dark" />

        <TextView
            android:text="Sonuç Tarihi"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/SonucTarihi"
            android:layout_weight="1"
            android:textAlignment="center"
            android:textColor="@android:color/holo_red_dark" />
    </LinearLayout>

    <com.example.cagri.mobilyateknikservis.CustomList
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:listSelector="@android:color/white"
        android:background="@android:color/white"
        android:id="@+id/lstIsl"
        android:layout_weight="1"
        android:fadingEdge="none"
        android:focusable="false"
        android:scrollbars="none" />

    <TextView
        android:text="PARÇALAR"
        android:layout_width="match_parent"
        android:id="@+id/Parcalar"
        android:gravity="center_vertical"
        android:textAlignment="center"
        android:background="@android:color/white"
        android:textColor="@color/colorAccent"
        android:layout_height="30dp" />

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:text="Talep Tarihi"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/textView8"
            android:textColor="@android:color/holo_red_dark"
            android:textAlignment="textStart" />

        <TextView
            android:text="Parça"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/textView7"
            android:layout_weight="1"
            android:textAlignment="textStart"
            android:textColor="@android:color/holo_red_dark" />

        <TextView
            android:text="Miktar"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/textView6"
            android:layout_weight="1"
            android:textAlignment="textStart"
            android:textColor="@android:color/holo_red_dark" />

        <TextView
            android:text="İade Durumu"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/textView5"
            android:layout_weight="1"
            android:textColor="@android:color/holo_red_dark"
            android:textAlignment="textStart" />

        <TextView
            android:text="Açıklama"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/textView4"
            android:layout_weight="1"
            android:textAlignment="textStart"
            android:textColor="@android:color/holo_red_dark" />

        <TextView
            android:text="Sonuç"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/textView3"
            android:layout_weight="1"
            android:textAlignment="textStart"
            android:textColor="@android:color/holo_red_dark" />

        <TextView
            android:text="Sonuç Tarihi"
            android:background="@android:color/background_light"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/textView2"
            android:layout_weight="1"
            android:textAlignment="textStart"
            android:textColor="@android:color/holo_red_dark" />
    </LinearLayout>

    <com.example.cagri.mobilyateknikservis.CustomList
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:listSelector="@android:color/white"
        android:background="@android:color/white"
        android:id="@+id/lstParcalar"
        android:fadingEdge="none"
        android:focusable="false"
        android:scrollbars="none" />

</LinearLayout>

</ScrollView>

还有我的自定义列表视图适配器：

public class ParcaAdapter extends BaseAdapter {
private LayoutInflater inflater;
private List<Parcalar> parcaBilgileri;

public ParcaAdapter(Activity activity, List<Parcalar> parca)
{
    inflater = (LayoutInflater)     activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    parcaBilgileri = parca;
}

public int getCount() {
    return parcaBilgileri.size();
}

public Parcalar getItem(int position) {
    return parcaBilgileri.get(position);
}

public long getItemId(int position) {
    return position;
}

public View getView(int position, View convertView, ViewGroup parent) {
    View satirView;
    satirView = inflater.inflate(R.layout.parcalar_list, null);
    TextView txtTalepTarihi = (TextView)     satirView.findViewById(R.id.txtTalepTarihi);
    TextView txtParca = (TextView) satirView.findViewById(R.id.txtParca);
    TextView txtMiktar = (TextView)     satirView.findViewById(R.id.txtMiktar);
    TextView txtIadeDurumu = (TextView)     satirView.findViewById(R.id.txtIadeDurumu);
    TextView txtAciklama = (TextView)     satirView.findViewById(R.id.txtAciklama);
    TextView txtSonuc = (TextView) satirView.findViewById(R.id.txtSonuc);
    TextView txtSonucTarihi = (TextView)     satirView.findViewById(R.id.txtSonucTarihi);

    Parcalar bilgi = parcaBilgileri.get(position);

    txtTalepTarihi.setText(bilgi.gettaleptarihi());
    txtParca.setText(bilgi.getparca());
    txtMiktar.setText(bilgi.getmiktar());
    txtIadeDurumu.setText(bilgi.getiadedurumu());
    txtAciklama.setText(bilgi.getaciklama());
    txtSonuc.setText(bilgi.getsonuc());
    txtSonucTarihi.setText(bilgi.getsonuctarihi());

    return satirView;
}
}

感谢您的帮助。

编辑：我的应用的屏幕截图。

Answer 1

使用 RecyclerView 代替 ListView，对于 ScrollView 使用 NestedScrollView。它是为这种滚动而设计的。另一件事，将 recyclerView 的高度设置为 wrap_content 用于空白

Answer 2

无需为此编写所有代码。您只需要根据子视图更改列表视图高度。只需为此使用简单的适配器，并在 setAdapter 调用下面的方法之后。

private void setListViewHeightBasedOnChildren(ListView listView, int columns, int arrayPosition) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null) {
        return;
    }

    boolean isSaved = false;
    int totalHeight = 0;
    int tempHeight = 10;
    int items = listAdapter.getCount();
    int rows = 0;

    View listItem = listAdapter.getView(0, null, listView);
    listItem.measure(0, 0);
    totalHeight = listItem.getMeasuredHeight();

    float x = 1;
    if (items > columns) {
        x = items / columns;
        if (arrayPosition == 0) {
            rows = (int) (x + 1);
        } else {
            rows = (int) (x + 3);
        }
        totalHeight *= rows;
        if (!isSaved) {
            tempHeight += rows;
            isSaved = true;
        }
    }

    ViewGroup.LayoutParams params = listView.getLayoutParams();

    params.height = totalHeight + (tempHeight * 4);

    listView.setLayoutParams(params);
}

根据需要修改 params.height。

像这样调用这个方法：

   setListViewHeightBasedOnChildren(yourListView, 1, position);