Scrollview的requestDisallowInterceptTouchEvent [英] requestDisallowInterceptTouchEvent for Scrollview
问题描述
我在scrollview内的linearlayout内有一个StreetViewPanoramaView:
I have a StreetViewPanoramaView inside a linearlayout inside a scrollview:
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollview">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/linear">
<com.google.android.gms.maps.StreetViewPanoramaView
android:id="@+id/street_view_panorama"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<other views - textviews etc>
</LinearLayout>
</ScrollView>
StreetViewPanoramaView允许用户上下左右移动街景相机.我希望当用户移动相机时，scrollview停止拦截用户的触摸事件.当前，如果用户在StreetViewPanoramaView中移动摄像机，则滚动视图将拦截触摸并移动滚动视图.
The StreetViewPanoramaView allows a user to move the streetview camera up and down and left and right. I want the scrollview to stop intercepting the user touch events when the user is moving the camera. Currently, if the user moves the camera in the StreetViewPanoramaView, the scrollview intercept the touch and moves the scrollview instead.
我在 https://mobiarch.wordpress.com/2013/11/21/prevent-touch-event-theft-in-android/，但它似乎不起作用(scrollview仍在进行触摸事件):
I tried this code from https://mobiarch.wordpress.com/2013/11/21/prevent-touch-event-theft-in-android/ but its doesn't seem to be working (scrollview is still taking the touch events):
mStreetViewPanoramaView = (StreetViewPanoramaView) findViewById(R.id.street_view_panorama);
LinearLayout.LayoutParams streetViewLp =
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, displaymetrics.widthPixels/3);
mStreetViewPanoramaView.setLayoutParams(streetViewLp);
disableTouchTheft(mStreetViewPanoramaView);
public static void disableTouchTheft(View view) {
view.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
view.getParent().getParent().requestDisallowInterceptTouchEvent(true);
switch (motionEvent.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_UP:
view.getParent().getParent().requestDisallowInterceptTouchEvent(false);
break;
}
return false;
}
});
}
我尝试过的事情:
我做了一个自定义视图，并将代码dispatchTouchEvent导入了我的活动代码:
I have made a custom view and imported the code dispatchTouchEvent into my activity code:
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
int[] loc = {0, 0};
mStreetViewPanoramaView.getLocationOnScreen(loc);
Rect rect = new Rect(loc[0], loc[1] , loc[0] + mStreetViewPanoramaView.getWidth(), loc[1] + mStreetViewPanoramaView.getHeight());
if (rect.contains((int) event.getRawX(), (int) event.getRawY())) {
Log.e("stretview", "dispatched");
return mStreetViewPanoramaView.dispatchTouchEvent(event);
/* return true;*/
}else{
//Continue with touch event
return super.dispatchTouchEvent(event);
}
}
public class CustomStreetViewPanoramaView extends StreetViewPanoramaView {
public CustomStreetViewPanoramaView(Context context) {
super(context);
}
public CustomStreetViewPanoramaView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomStreetViewPanoramaView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public CustomStreetViewPanoramaView(Context context, StreetViewPanoramaOptions options) {
super(context, options);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
return false; // Do not intercept touch event, let the child handle it
}
}
代码似乎无法正常工作-StreetViewParnoramaView似乎将获得视图上半部分的触摸事件，而下半部分则不会获得任何触摸事件.
The code appears to half-work - it appears that the StreetViewParnoramaView will obtain the touch events for the top half of the view but the bottom half does not obtain any touch events.
我的完整版式文件:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:id="@+id/container"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:minHeight="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollview">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/linearlayout">
<com.example.simon.customshapes.CustomStreetViewPanoramaView
android:id="@+id/street_view_panorama"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="500dp"
android:id="@+id/card"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello card"
android:layout_gravity="center" />
</android.support.v7.widget.CardView>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Save panorama"
android:padding="8dp"
android:id="@+id/savepano"/>
<android.support.v7.widget.RecyclerView
android:id="@+id/my_recycler_view"
android:scrollbars="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
</ScrollView>
</LinearLayout>
推荐答案
约翰的答案是正确的道路，但仍然行不通-这将行之有效
The answer of Johann is the right path but still not working - this one will work
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
if (streetView != null) {
streetView.getGlobalVisibleRect(rect);
if (rect.contains((int) event.getRawX(), (int) event.getRawY())) {
event.offsetLocation(-rect.left, -rect.top);
streetView.dispatchTouchEvent(event);
return true;
} else {
//Continue with touch event
return super.dispatchTouchEvent(event);
}
} else {
return super.dispatchTouchEvent(event);
}
}
活动的dispatchTouchEvent，并将事件偏移到streetView后将其移动
dispatchTouchEvent of the activity and move the event after offsets it to the streetView
这篇关于Scrollview的requestDisallowInterceptTouchEvent的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
