在Android中如何与不同的滚动速度滚动型同步？ [英] In Android how to synchronize scrollview with different scrolling speeds?
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问题描述
我有一些相关的滚动型的手段（当我滚动一种观点认为别人也会滚动）。我能够正确地做到这一点，但现在我要管理的滚动装置的速度（当我滚动我scrollview1比scrollview2应该滚动+10 scrollview3应滚动+20或任何速度）同其他（scrollview2和scrollview3）也。
I have some dependent scrollview means (when I scroll one view others will also scroll). I am able to do it properly, but now I want to manage the speed of scroll means (when I scroll my scrollview1 than scrollview2 should scroll +10 and scrollview3 should scroll +20 or whatever speed) same for other (scrollview2, and scrollview3) also.
我检查有一个名为scrollview.scrollto方法（X，Y）。它用于管理滚动但是当我增加scollto（X，Y + scrollviews（I）.getSpeed（）），比它给了我的StackOverflow例外。
I check there is a method called scrollview.scrollto(x,y). Which used to manage the scroll but when i increase scollto(x, y+scrollviews(i).getSpeed()) than it gives me stackOverflow exception.
我附上我的code请看这个，给我一些建议，怎样才能解决这个问题。
I am attaching my code please look into this and give me some suggestion how can solve this problem.
我的自定义滚动视图类是：
My custom scrollView class is:
public class CustomVerticalObserveScroll extends ScrollView {
private GestureDetector mGestureDetector;
View.OnTouchListener mGestureListener;
public CustomVerticalObserveScroll(Context context, AttributeSet attrs) {
super(context, attrs);
mGestureDetector = new GestureDetector(context, new YScrollDetector());
setFadingEdgeLength(0);
// TODO Auto-generated constructor stub
}
private CustomScrollLisner scrollViewListener = null;
public CustomVerticalObserveScroll(Context context) {
super(context);
mGestureDetector = new GestureDetector(context, new YScrollDetector());
setFadingEdgeLength(0);
}
public CustomVerticalObserveScroll(Context context, AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
mGestureDetector = new GestureDetector(context, new YScrollDetector());
setFadingEdgeLength(0);
}
public void setScrollViewListener(CustomScrollLisner scrollViewListener) {
this.scrollViewListener = scrollViewListener;
}
@Override
protected void onScrollChanged(int x, int y, int oldx, int oldy) {
super.onScrollChanged(x, y, oldx, oldy);
if (scrollViewListener != null) {
scrollViewListener.onScrollChanged(this, x, y, oldx, oldy);
}
}
@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;
}
if (Math.abs(distanceX) > Math.abs(distanceY)) {
return true;
}
return false;
}
}
}
这code我使用，使滚动滚动相关意见。
and this code I am using to make scroll dependent scroll views.
public class RelativePanoFeature implements IFeaturetype, OnTouchListener {
private String type;
private FeatureCordinates locationCordinates;
private int mOrientation;
private String image;
private FeatureCordinates triggerCordinates;
private String scrollDirection;
private String scrollSpeed;
private String scrollHandler;
CustomVerticalObserveScroll vertical_scroll;
CustomHorizontalObserveScroll horizontal_scroll;
RelativeLayout vsChild;
long timeonDown, timeonUp;
Thread t;
Handler mhandler;
float downx, downy;
int touchId;
public static int scrollid = 0;
public static ArrayList<RelativePanoHandler> storePanoHandler = new ArrayList<RelativePanoHandler>();
public RelativePanoFeature(String type) {
this.type = type;
}
@Override
public void setType(String type) {
this.type = type;
}
@Override
public String getType() {
return type;
}
public void setImage(String image) {
this.image = image;
}
public String getImage() {
return image;
}
public FeatureCordinates getLocation() {
return locationCordinates;
}
public void setLocation(FeatureCordinates featureCordinates) {
this.locationCordinates = featureCordinates;
}
public void setOrientation(int mOrientation) {
this.mOrientation = mOrientation;
}
public int getOrientation() {
return mOrientation;
}
public FeatureCordinates getTrigger() {
return triggerCordinates;
}
public void setTrigger(FeatureCordinates trigger) {
this.triggerCordinates = trigger;
}
public void setScrollDirection(String scrollDirection) {
this.scrollDirection = scrollDirection;
}
public String getScrollDirection() {
return scrollDirection;
}
public void setScrollSpeed(String scrollSpeed) {
this.scrollSpeed = scrollSpeed;
}
public String getScrollSpeed() {
return scrollSpeed;
}
public void setScrollHandler(String scrollHandler) {
this.scrollHandler = scrollHandler;
}
public String getScrollHandler() {
return scrollHandler;
}
public void setTouchId(int touchid) {
this.touchId = touchid;
}
public int getTOuchId() {
return touchId;
}
/* function to draw relative pano */
public void drawRelativePano(final Context con,
final RelativeLayout parent, final Handler handle) {
/* splitting the path from images key in the string */
RelativePanoHandler panHandler = new RelativePanoHandler();
final int height;
final int width;
vsChild = new RelativeLayout(con);
mhandler = handle;
/* giving size of of vertical scroll's child */
LayoutParams imageViewLayoutParams = new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
vsChild.setLayoutParams(imageViewLayoutParams);
/* splitting the path from images key in the string */
String path[] = getImage().split("images");
try {
/* Initialise loader to load the image inside child */
BackgroundImageLoader loader = new BackgroundImageLoader(vsChild,
Property.FILEPATH + path[1], con);
try {
loader.execute();
} catch (IllegalStateException e) {
e.printStackTrace();
}
/* getting height and width of image from loader object */
height = loader.get().getHeight();
width = loader.get().getWidth();
/*
* condition for putting the child view in vertical scroll and
* implementing the multi directional scroll for event pano
*/
int locWidth = getLocation().getWidth(), locHeight = getLocation()
.getHeight();
System.out.println("Width= " + width + " Location width= "
+ locWidth);
System.out.println("Heoght= " + height + " Location Height= "
+ locHeight
);
if (width > (getLocation().getWidth())
|| height > (getLocation().getHeight())) {
vertical_scroll = new CustomVerticalObserveScroll(con);
horizontal_scroll = new CustomHorizontalObserveScroll(con);
vertical_scroll.setFillViewport(true);
horizontal_scroll.setFillViewport(true);
vertical_scroll.setId(scrollid);
horizontal_scroll.setFadingEdgeLength(0);
/*
* adding the soft later on vertical and horizontal scroll if
* the detected device is on api level 10 or more than that
*/
if (Build.VERSION.SDK_INT > 10) {
vertical_scroll
.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
horizontal_scroll.setLayerType(View.LAYER_TYPE_SOFTWARE,
null);
}
vsChild.setEnabled(true);
/*
* parameters for setting the height and width of vertical
* scroll
*/
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
getLocation().getWidth(), getLocation().getHeight());
params.leftMargin = getLocation().getX();
params.topMargin = getLocation().getY();
vertical_scroll.setLayoutParams(params);
/* adding vertical scroll child this child will hold the image */
vertical_scroll.addView(vsChild, width, height);
horizontal_scroll.setLayoutParams(params);
/*
* adding vertical scroll as a child of horizontal scroll for
* multidirectional scrolling
*/
horizontal_scroll.addView(vertical_scroll);
/*
* at last add this horizontal scroll in side parent which will
* hold the multidirectional scroll
*/
parent.setTag(getScrollHandler());
parent.addView(horizontal_scroll);
// vertical_scroll.setId(id)
panHandler.setVerticalScroll(vertical_scroll);
panHandler.setHandlerTag(getScrollHandler());
panHandler.setPanoSpeed(Integer.parseInt(getScrollSpeed()));
storePanoHandler.add(panHandler);
int size = storePanoHandler.size();
System.out.println("Vertical Scroll objec size=" + size);
}
System.out.println("TAg= " + parent.getTag());
String scdir = getScrollDirection();
System.out.println("Scroll Directoion= " + scdir);
scrollid++;
if (getScrollDirection().equalsIgnoreCase("Y")) {
vertical_scroll.setScrollViewListener(new CustomScrollLisner() {
@Override
public void onScrollChanged(
CustomHorizontalObserveScroll scrollView, int x,
int y, int oldx, int oldy) {
}
@Override
public void onScrollChanged(
CustomVerticalObserveScroll scrollView, int x,
int y, int oldx, int oldy) {
if (scrollView == storePanoHandler.get(getTOuchId())
.getVerticalScroll()) {
for (int i = 0; i < storePanoHandler.size(); i++) {
storePanoHandler.get(i).getVerticalScroll()
.scrollTo(x, y);
storePanoHandler.get(i).getVerticalScroll().
// storePanoHandler.
// .get(i)
// .getVerticalScroll()
// .scrollTo(
// x,
// oldy
// + storePanoHandler.get(
// i)
// .getPanoSpeed());
}
}
}
});
}
// if (getScrollDirection().equalsIgnoreCase("X")) {
// vertical_scroll.setScrollViewListener(new CustomScrollLisner() {
//
// @Override
// public void onScrollChanged(
// CustomHorizontalObserveScroll scrollView, int x,
// int y, int oldx, int oldy) {
// // if (scrollView == storePanoHandler.get(getTOuchId())
// // .getVerticalScroll()) {
// //
// // for (int i = 0; i < storePanoHandler.size(); i++) {
// // storePanoHandler.get(i).getVerticalScroll()
// // .smoothScrollTo(x, y);
// //
// // }
// // }
// }
//
// @Override
// public void onScrollChanged(
// CustomVerticalObserveScroll scrollView, int x,
// int y, int oldx, int oldy) {
// }
// });
// }
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
/*
* set touch listeners on vertical and horizontal scrolls it will use to
* disable the scroll for it's parent like [image or view pager when
* user interacting with any of custom scroll]
*/
horizontal_scroll.setOnTouchListener(this);
vertical_scroll.setOnTouchListener(this);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
boolean scrollingPanaroma = true;
// changing token value for getting scroll
if (v == vertical_scroll || v == horizontal_scroll) {
/*
* Disabling the parent control [list, pager] when user interacting
* with multidirectional scroll
*/
System.out.println("Pano touch Id= " + vertical_scroll.getId());
setTouchId(vertical_scroll.getId());
if (scrollingPanaroma == true) {
v.getParent().getParent().getParent()
.requestDisallowInterceptTouchEvent(true);
}
/*
* enable the parent control [list, pager] when user done with
* multidirectional scroll
*/
else {
v.getParent().getParent().getParent()
.requestDisallowInterceptTouchEvent(false);
}
}
return false;
}
}
请帮我解决了这一点，因为我在这一点上确实被卡住。 Thnaks。
Please help me to solve this out because I am really stucked at this point. Thnaks.
推荐答案
下面是code我用来降低滚动型的滚动速度编程，
Here is the code I used to slow down the scroll speed of ScrollView programmatically,
ObjectAnimator anim = ObjectAnimator.ofInt(mScrollView, "scrollY", mScrollView.getBottom());
anim.setDuration(9000);
anim.start();
mScrollView - 您的滚动型
mScrollView - Your ScrollView
mScrollView = (ScrollView) findViewById(R.id.scrollView1);
anima.setDuration（int值） - 数值越大，滚动速度较慢
我在切换按钮OnCheckedChangedListener使用code座。
anima.setDuration(int Value) - greater the value, slower the scroll I used the code block in Switch Button OnCheckedChangedListener.
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