2014/10/16 上午 08:11:20

android Programming Glossary: computescroll

android maps: how to determine map center after a drag has been completed

http://stackoverflow.com/questions/1773717/android-maps-how-to-determine-map-center-after-a-drag-has-been-completed

true return super.onTouchEvent event @Override public void computeScroll super.computeScroll if this.isTouchEnded this.lastMapCenter.equals.. event @Override public void computeScroll super.computeScroll if this.isTouchEnded this.lastMapCenter.equals this.getMapCenter..

Developing an Android Homescreen

http://stackoverflow.com/questions/3467461/developing-an-android-homescreen

scrollTo mCurrentScreen width 0 @Override public void computeScroll if mScroller.computeScrollOffset mScrollX mScroller.getCurrX.. width 0 @Override public void computeScroll if mScroller.computeScrollOffset mScrollX mScroller.getCurrX scrollTo mScrollX 0 postInvalidate..

How to catch that map panning and zoom are really finished?

http://stackoverflow.com/questions/3567420/how-to-catch-that-map-panning-and-zoom-are-really-finished

another one derivative from View which may be overridden computeScroll method. It is called repeatedly as map continues padding. All.. we have to do is to set some time threshold to catch if computeScroll is not called anymore this time. Here is what I did import java.util.Timer.. true return super.onTouchEvent ev @Override public void computeScroll super.computeScroll if getZoomLevel last_zoom if computeScroll..

knowing when map has stopped scrolling (like “moveend” in javascript API)

http://stackoverflow.com/questions/4351748/knowing-when-map-has-stopped-scrolling-like-moveend-in-javascript-api

partially solve it. I subclassed MapView and overrode the computeScroll method which gets the current centre point of the map and compares..

Android: Synchronized scrolling of two different views

http://stackoverflow.com/questions/4591083/android-synchronized-scrolling-of-two-different-views

set the scroller up. Then override your custom view's computeScroll method and update the scroll in each of child views. Check this.. it's simpler Update sample code @Override public void computeScroll if scroller.computeScrollOffset if scrolledLastFrame lastX.. code @Override public void computeScroll if scroller.computeScrollOffset if scrolledLastFrame lastX scroller.getStartX lastY..

Android: Moving background image while navigating through Views

http://stackoverflow.com/questions/4775650/android-moving-background-image-while-navigating-through-views

Android Homescreen

http://stackoverflow.com/questions/4969226/android-homescreen

Limit Scrolling on offline maps, in Android

http://stackoverflow.com/questions/7898313/limit-scrolling-on-offline-maps-in-android

add code wherever remove code wherever Also modify computeScroll in MapView.java as stated here Now to use this modified .java..

Marquee Set Speed

http://stackoverflow.com/questions/8970927/marquee-set-speed

mSlr.getCurrX mSlr.abortAnimation @Override override the computeScroll to restart scrolling when finished so as that the text is scrolled.. so as that the text is scrolled forever public void computeScroll super.computeScroll if null mSlr return if mSlr.isFinished mPaused.. text is scrolled forever public void computeScroll super.computeScroll if null mSlr return if mSlr.isFinished mPaused this.startScroll..

android maps: how to determine map center after a drag has been completed

http://stackoverflow.com/questions/1773717/android-maps-how-to-determine-map-center-after-a-drag-has-been-completed

MotionEvent.ACTION_MOVE this.isFirstComputeScroll true return super.onTouchEvent event @Override public void computeScroll super.computeScroll if this.isTouchEnded this.lastMapCenter.equals this.getMapCenter this.isFirstComputeScroll here you.. this.isFirstComputeScroll true return super.onTouchEvent event @Override public void computeScroll super.computeScroll if this.isTouchEnded this.lastMapCenter.equals this.getMapCenter this.isFirstComputeScroll here you use this.getMapCenter..

Developing an Android Homescreen

http://stackoverflow.com/questions/3467461/developing-an-android-homescreen

Log.i LOG_TAG moving to screen mCurrentScreen scrollTo mCurrentScreen width 0 @Override public void computeScroll if mScroller.computeScrollOffset mScrollX mScroller.getCurrX scrollTo mScrollX 0 postInvalidate And the layout file xml.. moving to screen mCurrentScreen scrollTo mCurrentScreen width 0 @Override public void computeScroll if mScroller.computeScrollOffset mScrollX mScroller.getCurrX scrollTo mScrollX 0 postInvalidate And the layout file xml version 1.0 encoding utf..

How to catch that map panning and zoom are really finished?

http://stackoverflow.com/questions/3567420/how-to-catch-that-map-panning-and-zoom-are-really-finished

override draw method we should find another way in. There is another one derivative from View which may be overridden computeScroll method. It is called repeatedly as map continues padding. All we have to do is to set some time threshold to catch if computeScroll.. method. It is called repeatedly as map continues padding. All we have to do is to set some time threshold to catch if computeScroll is not called anymore this time. Here is what I did import java.util.Timer import java.util.TimerTask import android.content.Context.. ev if ev.getAction 1 is_touched false else is_touched true return super.onTouchEvent ev @Override public void computeScroll super.computeScroll if getZoomLevel last_zoom if computeScroll called before timer counts down we should drop it and start..

knowing when map has stopped scrolling (like “moveend” in javascript API)

http://stackoverflow.com/questions/4351748/knowing-when-map-has-stopped-scrolling-like-moveend-in-javascript-api

solution to this problem but I can tell what I did to partially solve it. I subclassed MapView and overrode the computeScroll method which gets the current centre point of the map and compares it with the last known centre point stored as a volatile..

Android: Synchronized scrolling of two different views

http://stackoverflow.com/questions/4591083/android-synchronized-scrolling-of-two-different-views

custom view . When the gesture listener detects a fling event set the scroller up. Then override your custom view's computeScroll method and update the scroll in each of child views. Check this example to know how to implement it. I apologize I will.. to post a better example when possible. Check my code below... it's simpler Update sample code @Override public void computeScroll if scroller.computeScrollOffset if scrolledLastFrame lastX scroller.getStartX lastY scroller.getStartY int dx scroller.getCurrX.. when possible. Check my code below... it's simpler Update sample code @Override public void computeScroll if scroller.computeScrollOffset if scrolledLastFrame lastX scroller.getStartX lastY scroller.getStartY int dx scroller.getCurrX lastX int dy scroller.getCurrY..

Android: Moving background image while navigating through Views

http://stackoverflow.com/questions/4775650/android-moving-background-image-while-navigating-through-views

Log.i LOG_TAG moving to screen mCurrentScreen scrollTo mCurrentScreen width 0 @Override public void computeScroll if mScroller.computeScrollOffset mScrollX mScroller.getCurrX scrollTo mScrollX 0 postInvalidate Return the parceable.. moving to screen mCurrentScreen scrollTo mCurrentScreen width 0 @Override public void computeScroll if mScroller.computeScrollOffset mScrollX mScroller.getCurrX scrollTo mScrollX 0 postInvalidate Return the parceable instance to be saved @Override..

Android Homescreen

http://stackoverflow.com/questions/4969226/android-homescreen

heightMeasureSpec Log.i LOG_TAG moving to screen mCurrentScreen scrollTo mCurrentScreen width 0 @Override public void computeScroll if mScroller.computeScrollOffset mScrollX mScroller.getCurrX scrollTo mScrollX 0 postInvalidate Then my main.xml layout.. moving to screen mCurrentScreen scrollTo mCurrentScreen width 0 @Override public void computeScroll if mScroller.computeScrollOffset mScrollX mScroller.getCurrX scrollTo mScrollX 0 postInvalidate Then my main.xml layout xml version 1.0 encoding utf..

Limit Scrolling on offline maps, in Android

http://stackoverflow.com/questions/7898313/limit-scrolling-on-offline-maps-in-android

MapView.java Now as stated in this patch file modify MapView.java add code wherever remove code wherever Also modify computeScroll in MapView.java as stated here Now to use this modified .java file u need to create a new jar file that u can include in..

Marquee Set Speed

http://stackoverflow.com/questions/8970927/marquee-set-speed

to be true so current position shall be saved mXPaused mSlr.getCurrX mSlr.abortAnimation @Override override the computeScroll to restart scrolling when finished so as that the text is scrolled forever public void computeScroll super.computeScroll.. override the computeScroll to restart scrolling when finished so as that the text is scrolled forever public void computeScroll super.computeScroll if null mSlr return if mSlr.isFinished mPaused this.startScroll public int getRndDuration return mRndDuration.. to restart scrolling when finished so as that the text is scrolled forever public void computeScroll super.computeScroll if null mSlr return if mSlr.isFinished mPaused this.startScroll public int getRndDuration return mRndDuration public void..