android动画之最总总结
动画总结：不管什么动画、透明还是大小、位置、四个动画可以改变的特效很多！但是其中有一个特效是不叫棘手的就是移动特效！假如我现在要做一个仿HTC圆环解锁的特效动画废话少说上代码解释！
public class ScreenUnLockActivity extends Activity implements OnClickListener{public Button btn;public ImageView imageview;public AnimationSet animation = new AnimationSet(true);//动画集合public Animation alpha,scale,translate;//透明，尺寸float mCircleLockTouchX=0 ;//= event.getX() - mLayoutCircle.getLeft();float mCircleLockTouchY=0 ;//= event.getY() - mLayoutCircle.getTop(); //** Called when the activity is first created. *//* @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // init(); //btn.setOnClickListener(this); } @Overridepublic boolean onTouchEvent(MotionEvent event) {// TODO Auto-generated method stub if(event.getAction() == MotionEvent.ACTION_UP){ mCircleLockTouchX = event.getX(); mCircleLockTouchY = event.getY(); Log.i("HHJ", "mCircleLockTouchY: "+mCircleLockTouchY+" mCircleLockTouchY:"+mCircleLockTouchY); init(); startAnimation(); }return super.onTouchEvent(event);}public void init(){ btn = (Button) findViewById(R.id.btn); imageview = (ImageView) findViewById(R.id.imageview); alpha = new AlphaAnimation(1.0f, 0.0f); alpha.setDuration(1000); scale = new ScaleAnimation(1f, 3f, 1f, 3f, Animation.RELATIVE_TO_SELF,0.5f, Animation.RELATIVE_TO_SELF,0.5f); scale.setDuration(1000);//下面这代码是拿到当前屏幕的中心位置！我屏幕为480*854 translate = new TranslateAnimation(0, getWindowManager().getDefaultDisplay().getWidth()/2-imageview.getHeight()/2, 0, getWindowManager().getDefaultDisplay().getHeight()/2-imageview.getWidth()/2); translate = new TranslateAnimation(mCircleLockTouchX-imageview.getWidth() / 2- imageview.getLeft(), 240-imageview.getWidth() / 2- imageview.getLeft(), mCircleLockTouchY- imageview.getHeight() / 2- imageview.getTop(), 425- imageview.getHeight() / 2- imageview.getTop()); //translate.setFillAfter(false); Log.i("HHJ", "width"+getWindowManager().getDefaultDisplay().getWidth()/2+" height:"+getWindowManager().getDefaultDisplay().getHeight()/2); translate.setDuration(500); }@Overridepublic void onClick(View v) {// TODO Auto-generated method stubif(v.getId() == R.id.btn){startAnimation();}}public void startAnimation(){//添加动画集合animation.addAnimation(alpha);animation.addAnimation(scale);animation.addAnimation(translate);imageview.startAnimation(animation);}}
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