Android animation 示范

Android animation 示例

private void addAnimation(String name) {array.add(name);if (name.equals("alpha")) {anim = new AlphaAnimation(0f, 1.0f);anim.setDuration(time);anim.setFillAfter(true);anims.add(anim);anim = new AlphaAnimation(1f, 0f);anim.setDuration(time);anim.setFillAfter(false);exit_anims.add(anim);} else if (name.equals("rotate")) {anim = new RotateAnimation(0.0f, 360.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);anim.setDuration(time);anim.setFillAfter(true);anims.add(anim);anim = new RotateAnimation(0.0f, -360.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);anim.setDuration(time);anim.setFillAfter(false);exit_anims.add(anim);} else if (name.equals("translate")) {anim = new TranslateAnimation(width, 0f, 0, 0);anim.setDuration(time);anim.setFillAfter(true);anims.add(anim);anim = new TranslateAnimation(0, -width, 0, 0);anim.setDuration(time);anim.setFillAfter(false);exit_anims.add(anim);} else if (name.equals("scale")) {anim = new ScaleAnimation(0.0f, 1.0f, 1f, 1f, Animation.RELATIVE_TO_PARENT, 0.5f,Animation.RELATIVE_TO_PARENT, 0.5f);anim.setDuration(time);anim.setFillAfter(true);anim.setStartOffset(200);anims.add(anim);anim = new ScaleAnimation(1.0f, 0.0f, 1f, 1f, Animation.RELATIVE_TO_PARENT, 0.5f,Animation.RELATIVE_TO_PARENT, 0.5f);anim.setDuration(time);anim.setFillAfter(false);anim.setStartOffset(200);exit_anims.add(anim);} else {myView1.setBackgroundResource(R.drawable.widget_animate);frameAnimation = (AnimationDrawable) myView1.getBackground();}}private void startAnimation(int pos) {position = pos;if (position >= 4) {myView1.setVisibility(View.VISIBLE);frameAnimation.start();} else {myView.setVisibility(View.VISIBLE);myView.startAnimation(anims.get(pos));}}