Well my problem is i actually want to change the thumb image after it has been created like say a different one for 25 50 and 75% but it vanishes.
On Jun 22, 8:31 pm, az9702 <az9...@gmail.com> wrote: > AnimationDrawable can be used to implement simplethumbanimation such > as blinking. > > * Create animation in anim/thumb_anim.xml: > > <animation-list > xmlns:android="http://schemas.android.com/apk/res/android"; > android:oneshot="true"> > > <item android:drawable="@drawable/red" android:duration="300" /> > <item android:drawable="@drawable/blue" android:duration="300" /> > ... > <item android:drawable="@drawable/ball_red" android:duration="300" / > > </animation-list> > > * Create an ImageView that turns the above XML into AnimationDrawable: > //mImageView.setVisibility(View.INVISIBLE); > mImage.setBackgroundResource(R.anim.thumb_anim); > mAnim = (AnimationDrawable)mImage.getBackground(); > > * Setseekbarthumbto the AnimationDrawable: > > mSeekBar.setThumb(mAnim); > > * In onWindowFocuseChanged, > > public void onWindowFocusChanged(boolean hasFocus) { > if(hasFocus) { > mAnim.start(); > } else { > mAnim.stop(); > } > } > > This step is baesd on disucssion in: > http://code.google.com/p/android/issues/detail?id=79#c4 > > * Note the imageview is needed only for turning the XML into > AnmiationDrawable so > its visibility can be turned off (or using a ViewStub ?) > > * Also need to turn off mAnim as soon as user starts interacting w/ > thethumb. > > As pointed out in > On Jun 20, 12:11 pm, Protocol-X <shawn.bur...@gmail.com> wrote: > > > > > I appear to be having the same issue > > > On Jun 19, 6:42 pm, az9702 <az9...@gmail.com> wrote: > > > > Hi, > > > > As the seekbarthumbis a drawable so its support for animation seems > > > limited. > > > It may not be feasible but I would like to hear feedback from those > > > who have more experience w/ UI. > > > > Animations I have in mind are quite simple like a few blinks when > > > layout becomes visible. > > > With Views, blinks can be easily implemented with alpha & cycles but > > > not so for Drawables. > > > > I explored several ideas but none seems to work well: > > > > * Using AnimationDrawable does not seem to help as it requires an > > > ImageView host. > > > > * My main activity has an animation on its layout. > > > I tried tosetthethumbdrawable to another bitmap onAnimationEnd > > > when the main layout is complete. > > > The old drawable went away but the new one did not show so > > > thethumbdisappeared. > > > I checked the thumboffset to make sure it was not out of range. > > > > *Seta Drawable callback on the drawable but that also requires a > > > view. > > > > Another way is to have a customseekbarwith a View forthumbinstead > > > of Drawable. > > > > Please let me know if I have overlooked any other options currently > > > supported by SDK ? > > > > Thanks in advance. > > > > - az9702- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
