Android tween animation cannot be stopped

Today, when I wrote a heartbeat animation, I found it could not be stopped.

1: The animation anim. xml file is as follows:</P> <p> <? XML version = "1.0" encoding = "UTF-8"?> <Br/> <set Android: preset interpolator = "false" xmlns: Android = "http://schemas.android.com/apk/res/android"> </P> <p> <scale Android: Duration = "335" Android: fillafter = "true" Android: fromxscale = "1.0" Android: fromyscale = "1.0" Android: interpolator = "@ Android: anim/linear_interpolator" Android: Export Tx = "50%" Android: required ty = "50%" Android: repeatcount = "infinite" Android: startoffset = "700" Android: toxscale = "1.4" Andro ID: toyscale = "1.4" type = "codeph" text = "codeph"> <br/> <! -- </P> <p> fromxscale [float] <br/> fromyscale [float] indicates the scaling size on the X and Y coordinates when the animation starts; 0.0 indicates the scale to none; 1.0 indicates normal scaling. A value smaller than 1.0 indicates contraction. if the value is greater than 1.0, toxscale [float] is enlarged. <br/> toyscale [float] indicates that the animation ends, the scaling size of X and Y coordinates, TX [float] <br/> ty [float], indicates the attribute value of the starting position of the animation relative to the X and Y coordinates of the object: from 0% to 100%, 50% indicates the point position on the X or Y coordinate of the object <br/> --> </P> <p> </scale> </set> <br/>2: The layout code of activity_main.xml is as follows:<Br/> <relativelayout xmlns: Android = "http://schemas.android.com/apk/res/android" xmlns: Tools = "http://schemas.android.com/tools" Android: layout_width = "match_parent" Android: layout_height = "match_parent" tools: context = ". mainactivity "> </P> <p> <imageview Android: Id =" @ + ID/imageview "Android: layout_width =" wrap_content "Android: layout_height =" wrap_content "Android: layout_centerhorizontal = "true" Android: layout_centervertical = "true" Android: Background = "@ anim/frame_anim" Android: visibility = "invisible"> </P> <p> <button Android: Id = "@ + ID/start" Android: layout_width = "wrap_content" Android: layout_height = "wrap_content" Android: text = "start"> </P> <p> </button> <button Android: Id = "@ + ID/end" Android: layout_width = "wrap_content" Android: layout_height = "wrap_content" Android: layout_alignparenttop = "true" Android: layout_torightof = "@ + ID/start" Android: TEXT = "end"> <br/> </button> </imageview> </relativelayout> </P> <p>3: the Java code is as follows:</P> <p> package COM. youpeng. animationdemo; </P> <p> Import android. app. activity; <br/> Import android. OS. bundle; <br/> Import android. util. log; <br/> Import android. view. view; <br/> Import android. view. view. onclicklistener; <br/> Import android. view. animation. animation; <br/> Import android. widget. button; <br/> Import android. widget. imageview; </P> <p> public class mainactivity extends activity implements onclicklistener {<br/> private imageview mimageview; <br/> private button start, end; <br/> private animation manimation </P> <p> @ override <br/> protected void oncreate (bundle savedinstancestate) {<br/> super. oncreate (savedinstancestate); <br/> setcontentview (R. layout. activity_main); </P> <p> mimageview = (imageview) findviewbyid (R. id. imageview); </P> <p> Start = (button) findviewbyid (R. id. start); <br/> Start. setonclicklistener (this); <br/> end = (button) findviewbyid (R. id. end); <br/> end. setonclicklistener (this); <br/> manimation = animationutils. loadanimation (this, R. anim. anim); </P> <p> // mimageview. setbackgroundresource (R. anim. frame_anim); <br/> // manimationdrawable = (animationdrawable) mimageview. getbackground (); </P> <p >}< br/> // <br/> @ override <br/> Public void onclick (view V) {<br/> // todo auto-generated method stub <br/> switch (v. GETID () {<br/> case R. id. start: <br/> mimageview. startanimation (manimation); </P> <p> mimageview. setvisibility (view. visible); <br/> log. E ("START", "Start"); <br/> break; <br/> case R. id. end: <br/> // mimageview. setvisibility (view. gone); <br/> mimageview. clearanimation (); <br/> log. E ("end", "end"); </P> <p> break; <br/> default: <br/> break; <br/>}< br/>4: There are two methods in the animation class: Start () and startnow (). Both methods can start the animation, but to stop the animation, there is a canel (), however, it seems that the animation cannot be stopped all the time, so there are two methods in the View class: startanimation () and clearanimation (). These two methods can start and stop the animation, but you want to make the animation message on the Interface
Add a setvisibility (view. Gone) for this component ).