我的应用目前由ViewPager
组成,其中包含多个Fragments
。在特定的Fragment
中,我有SwipeRefreshLayout
ScrollView
并且在此容器中有一个类型为TwoWayView
的HorizotalListView。
问题是当我在ListView
中水平滑动时,SwipeRefreshLayout
的垂直滚动未被禁用,有时会在操作过程中中断水平滑动。
这是我尝试解决的问题:
horizListView.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.
mSwipeRefreshLayout.requestDisallowInterceptTouchEvent(true);
v.getParent().requestDisallowInterceptTouchEvent(true);
break;
case MotionEvent.ACTION_UP:
// Allow ScrollView to intercept touch events.
mSwipeRefreshLayout.requestDisallowInterceptTouchEvent(false);
v.getParent().requestDisallowInterceptTouchEvent(false);
break;
}
// Handle HorizontalScrollView touch events.
v.onTouchEvent(event);
return true;
}
});
这是我的布局:
<android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent">
<TextView
android:id="@+id/tv_info1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:textStyle="bold"
android:textSize="@dimen/text_medium"
android:textColor="@color/light_gray"
android:text="@string/place_proposal" />
<org.lucasr.twowayview.TwoWayView
android:orientation="horizontal"
android:id="@+id/horizlistview"
android:layout_height="230dp"
android:scaleType="centerCrop"
android:drawSelectorOnTop="false"
android:layout_width="fill_parent" />
<TextView
android:id="@+id/tv_info2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@color/light_gray"
android:textSize="@dimen/text_medium"
android:textStyle="bold"
android:padding="10dp"
android:text="@string/actual_position"
android:paddingTop="5dp" />
<ViewFlipper xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/vf"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<include
android:id="@+id/include_w"
layout="@layout/include_wicard_homescreen" />
<include
android:id="@+id/include_no_w"
layout="@layout/include_no_wicard" />
</ViewFlipper>
</LinearLayout>
</ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
如果有人能帮助我,那就太好了。
答案 0 :(得分:0)
覆盖SwipeRefreshLayout。这是我的代码,它工作正常:
public class RefreshLayoutExIntercepter extends SwipeRefreshLayout {
public RefreshLayoutExIntercepter(Context ctx) {
super(ctx);
mTouchSlop = ViewConfiguration.get(ctx).getScaledTouchSlop();
}
public RefreshLayoutExIntercepter(Context ctx, AttributeSet attrs) {
super(ctx, attrs);
mTouchSlop = ViewConfiguration.get(ctx).getScaledTouchSlop();
}
private int mTouchSlop;
private float mPrevX;
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mPrevX = event.getX();
break;
case MotionEvent.ACTION_MOVE:
final float eventX = event.getX();
float xDiff = Math.abs(eventX - mPrevX);
if (xDiff > mTouchSlop) {
return false;
}
}
return super.onInterceptTouchEvent(event);
}
}
答案 1 :(得分:0)
SwipeRefreshLayout拦截触摸事件时遇到了类似的问题。在最新的支持库(我使用的是25.3.1 atm)中,可以在不扩展SwipeRefreshLayout的情况下处理它。我是这样做的:
isNestedScrollingEnabled()
中返回true。onTouchEvent()
中为ACTION_DOWN事件返回true。否则,具有此指针ID的事件将由SwipeRefreshLayout处理。onTouchEvent()
中返回true,以便您处理视图中的所有操作。requestDisallowInterceptTouchEvent(bool)
关闭/启用SwipeRefreshLayout及其父母的触摸敏感度(如果有)。在OP的情况下,设置RecyclerView.setNestedScrollingEnabled(true);
应解决问题。
以下是我的自定义视图代码的示例。使用此视图时,我可以通过水平滑动更改选项卡,并在视图一直向上滚动时享受SwipeRefreshLayout的功能。此视图将使用所有其他垂直滚动。我希望它有所帮助。
public void CustomScrollableView extends View {
private final GestureDetector.SimpleOnGestureListener mGestureListener = new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onDown(MotionEvent e) {
return true;
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
// Check if view is zoomed.
if (mIsZooming)
return true;
if (Math.abs(distanceY) < Math.abs(distanceX)) return false; // horizontal scrolling
// Calculate the new origin after scroll.
mYOffset -= distanceY;
ViewCompat.postInvalidateOnAnimation(CustomScrollableView.this);
return mYOffset < 0;
}
}
private void blockParentScrolling(final boolean block) {
final ViewParent parent = getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(block);
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
boolean consumedByGestureDetector = mGestureDetector.onTouchEvent(event);
blockParentScrolling(consumedByGestureDetector);
return consumedByGestureDetector;
}
@Override
public boolean isNestedScrollingEnabled() {
return true;
}
}