I tried to combine animation-list with state list in my application. I found an answer here:
http://stackoverflow.com/questions/5299219/button-states-with-background-as-animationdrawable-in-android My button has an animation and a 'pressed' state. The onClick listener simply exits the activity (not the whole application). Unfortunately when I go back to the activity - the image view is gone! Just disapeared and other items that are above it (set by relativeLayout) are pushed down, like the imageview object did not exist at all. I used the debuger and now I am sure, that each time I return to the activity all Java-code steps pass correctly including ButtonAnim = (AnimationDrawable) current; and ButtonAnim .start(); but the image still is invisible.Does anyone have an ide abotu this? Here are my codes: public void onCreate(Bundle savedInstanceState) { ... firstLaunch = ture; abortButton = ((ImageView) findViewById(R.id.imageView1)); abortButton.setOnClickListener(mButton01Listener); abortButton.setBackgroundResource(R.drawable.aborrtlist); StateListDrawable background = (StateListDrawable) abortButton.getBackground(); Drawable current = background.getCurrent(); if ( current instanceof AnimationDrawable) ButtonAnim = (AnimationDrawable) current; ... } In windows focus change I launch the animation: @Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus); if ( this.firstLaunch) { ButtonAnim .start(); firstLaunch = false; } } In the onClicl listener I just launch finish(): OnClickListener mButton01Listener = new OnClickListener() { public void onClick(View v) { finish(); } }; Here the state list file: <selector xmlns:android="http://schemas.android.com/apk/res/android"; android:constantSize="true"> <item android:state_pressed="true" android:drawable="@drawable/abortbuttonpressed" /> <!-- pressed --> <item android:drawable="@drawable/abort_animation" /> <!-- default --> </selector> And the animatio-list file: <?xml version="1.0" encoding="utf-8"?> <animation-list xmlns:android="http://schemas.android.com/apk/res/ android" android:oneshot="false"> <item android:drawable="@drawable/abortbuttonnormal0" android:duration="500" /> <item android:drawable="@drawable/abortbuttonnormal1" android:duration="500" /> </animation-list> -- 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
