我有一个 ScrollView 的 ViewPager inisde,而 ViewPager 不能正常工作。我知道,这个问题很相似,我用谷歌搜索并阅读了一些解决方案。此外,在 ScrollView 后面我有一些堆叠的片段。我在 ScrollView 触摸处理(扩展 viewpager 和滚动视图)中尝试了这个 HorizontalScrollView,它工作得更好,但并不完美。我认为堆叠的片段正在捕获 Touch 事件。
有人有这个问题吗?谢谢
编辑:我添加代码。
自定义滚动视图:
public class ScrollViewS extends ScrollView {
/* THIS COMMENT CODE IS THE OTHER SOLUTION
private GestureDetector mGestureDetector;
View.OnTouchListener mGestureListener;
public ScrollViewS(Context context, AttributeSet attrs) {
super(context, attrs);
mGestureDetector = new GestureDetector(context, new YScrollDetector());
setFadingEdgeLength(0);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return super.onInterceptTouchEvent(ev) && mGestureDetector.onTouchEvent(ev);
}
// Return false if we're scrolling in the x direction
class YScrollDetector extends SimpleOnGestureListener {
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
if(Math.abs(distanceY) > Math.abs(distanceX)) {
return true;
}
return false;
}
}
*/
private float xDistance, yDistance, lastX, lastY;
public ScrollViewS(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
xDistance = yDistance = 0f;
lastX = ev.getX();
lastY = ev.getY();
break;
case MotionEvent.ACTION_MOVE:
final float curX = ev.getX();
final float curY = ev.getY();
xDistance += Math.abs(curX - lastX);
yDistance += Math.abs(curY - lastY);
lastX = curX;
lastY = curY;
if(xDistance > yDistance)
return false;
}
return super.onInterceptTouchEvent(ev);
}
}
ViewPager 代码:
public class ViewPagerS extends ViewPager {
public ViewPagerS(Context context, AttributeSet attrs) {
super(context, attrs);
}
public boolean onInterceptTouchEvent(MotionEvent ev) {
// Tell our parent to stop intercepting our events!
boolean ret = super.onInterceptTouchEvent(ev);
if (ret) {
getParent().requestDisallowInterceptTouchEvent(true);
}
return ret;
}
}
XML 是这样的:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/fondoapp"
android:orientation="vertical" >
<com.geo.sov.customviews.ScrollViewS
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/borde_redondeado"
android:id="@+id/scrollview_fragmentaccounts"
>
<LinearLayout
android:id="@+id/x"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_margin="5dp"
android:orientation="vertical"
>
<TextView
android:id="@+id/title_accounts"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="14dp"
android:textStyle="bold" />
<com.geo.sov.customviews.ViewPagerS
android:id="@+id/pager"
android:layout_width="wrap_content"
android:layout_height="95dp"
android:background="#FFFFFFFF" />
<com.viewpagerindicator.CirclePageIndicator
android:id="@+id/indicator"
android:layout_width="fill_parent"
android:layout_height="20dp"
android:padding="10dip"
app:pageColor="#88FF0000"
app:radius="3dp"
app:strokeColor="#FF666666"
app:strokeWidth="1dp" />
(........)
当我启动我的应用程序时,我有一个片段,如果用户登录正确,可以使用以下代码对其进行更改:
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment f = new AccountsFragment();
fragmentTransaction.add(R.id.fragment, f);
fragmentTransaction.commit();
我用片段试验了一些问题。当我更改为 AccountsFragments 时,如果我在空白处触摸,触摸事件将传递给登录片段。我认为scrollview和viewpager是正确的,问题是它们拦截事件的片段。