列表视图在ScrollView中没有在Android上滚动我的卷轴有问题ListView在一个ScrollView..我有一个在顶部有一些Edittext的活动，然后是一个有两个选项卡的选项卡主机，每个选项卡都有一个ListView。当EditText视图被聚焦时，软键盘出现，当我有一个ScrollView时，内容是可滚动的。但是，当ListViews中有更多的条目(选项卡中的条目)时，我就无法滚动ListView，即使有更多的条目，也会出现问题。以下是布局XML：<?xml version="1.0" encoding="utf-8"?><RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="?backgroundImage"
android:orientation="vertical">
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="50dip"
android:layout_alignParentBottom="true"
android:layout_margin="10dip"
android:id="@+id/buttons">
<Button
android:text="Save"
android:layout_margin="2dip"
android:textSize="20dip"
android:id="@+id/btnSaveorUpdate"
android:layout_height="wrap_content"
android:layout_width="145dip"></Button>
<Button
android:text="Cancel"
android:layout_margin="2dip"
android:textSize="20dip"
android:id="@+id/btnCancelorDelete"
android:layout_height="wrap_content"
android:layout_width="145dip"></Button>
</LinearLayout>
<ScrollView
android:layout_above="@id/buttons"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true"
android:layout_margin="10dip">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_margin="10dip">谁能告诉我这里有什么问题吗？我还有一篇关于ListView内部ScrollView问题的文章，但它们在我的例子中没有用。
3 回答
眼眸繁星
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ListViewScrollViewListViewScrollViewListView
更新:
ViewViewGroupandroid:nestedScrollingEnabled="true"setNestedScrollingEnabled(true).
ScrollView
ListViewNestedScrollingChild
鸿蒙传说
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ListView
ListView lv = (ListView)findViewById(R.id.myListView); // your listview inside scrollviewlv.setOnTouchListener(new ListView.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
// Disallow ScrollView to intercept touch events.
v.getParent().requestDisallowInterceptTouchEvent(true);
break;
case MotionEvent.ACTION_UP:
// Allow ScrollView to intercept touch events.
v.getParent().requestDisallowInterceptTouchEvent(false);
break;
}
// Handle ListView touch events.
v.onTouchEvent(event);
return true;
}
});TouchEventScrollViewListView
人到中年有点甜
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<ScrollView android:id="@+id/createdrill_scrollView" android:layout_width="match_parent" android:layout_height="match_parent" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginLeft="20dp" android:layout_marginRight="20dp" android:layout_marginTop="15dp" > <net.thepaksoft.fdtrainer.NestedListView android:id="@+id/crewList" android:layout_width="0dip" android:layout_height="wrap_content" android:layout_marginBottom="2dp" android:layout_weight="1" android:background="@drawable/round_shape" android:cacheColorHint="#00000000" > </net.thepaksoft.fdtrainer.NestedListView> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginLeft="20dp" android:layout_marginRight="20dp" android:layout_marginTop="15dp" > <net.thepaksoft.fdtrainer.NestedListView android:id="@+id/benchmarksList" android:layout_width="0dip" android:layout_height="wrap_content" android:layout_marginBottom="2dp" android:layout_weight="1" android:background="@drawable/round_shape" android:cacheColorHint="#00000000" > </net.thepaksoft.fdtrainer.NestedListView> </LinearLayout></ScrollView>
public class NestedListView extends ListView implements OnTouchListener, OnScrollListener {
private int listViewTouchAction;
private static final int MAXIMUM_LIST_ITEMS_VIEWABLE = 99;
public NestedListView(Context context, AttributeSet attrs) {
super(context, attrs);
listViewTouchAction = -1;
setOnScrollListener(this);
setOnTouchListener(this);
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
if (getAdapter() != null && getAdapter().getCount() > MAXIMUM_LIST_ITEMS_VIEWABLE) {
if (listViewTouchAction == MotionEvent.ACTION_MOVE) {
scrollBy(0, -1);
}
}
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int newHeight = 0;
final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
int heightSize = MeasureSpec.getSize(heightMeasureSpec);
if (heightMode != MeasureSpec.EXACTLY) {
ListAdapter listAdapter = getAdapter();
if (listAdapter != null && !listAdapter.isEmpty()) {
int listPosition = 0;
for (listPosition = 0; listPosition < listAdapter.getCount()
&& listPosition < MAXIMUM_LIST_ITEMS_VIEWABLE; listPosition++) {
View listItem = listAdapter.getView(listPosition, null, this);
//now it will not throw a NPE if listItem is a ViewGroup instance
if (listItem instanceof ViewGroup) {
listItem.setLayoutParams(new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
}
listItem.measure(widthMeasureSpec, heightMeasureSpec);
newHeight += listItem.getMeasuredHeight();
}
newHeight += getDividerHeight() * listPosition;
}
if ((heightMode == MeasureSpec.AT_MOST) && (newHeight > heightSize)) {
if (newHeight > heightSize) {
newHeight = heightSize;
}
}
} else {
newHeight = getMeasuredHeight();
}
setMeasuredDimension(getMeasuredWidth(), newHeight);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
if (getAdapter() != null && getAdapter().getCount() > MAXIMUM_LIST_ITEMS_VIEWABLE) {
if (listViewTouchAction == MotionEvent.ACTION_MOVE) {
scrollBy(0, 1);
}
}
return false;
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