android 动画片调换上下布局

android 动画调换上下布局

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定义动画：

	private static final int ANIMATION_DURATION = 550;	Animation mDowntoUpHideAnimation, mUptoDownHideAnimation, scaleAnimation ;	public void init() {		mDowntoUpHideAnimation = new TranslateAnimation(				Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,				0.0f, Animation.RELATIVE_TO_SELF, 0.0f,				Animation.RELATIVE_TO_SELF, -1.0f);		mDowntoUpHideAnimation.setDuration(ANIMATION_DURATION);		mUptoDownHideAnimation = new TranslateAnimation(				Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,				0.0f, Animation.RELATIVE_TO_SELF, 0.0f,				Animation.RELATIVE_TO_SELF, 1.0f);		mUptoDownHideAnimation.setDuration(ANIMATION_DURATION);             scaleAnimation = new ScaleAnimation(1.0f, 1.0f,1.0f,1.0f,Animation.RELATIVE_TO_SELF,Animation.RELATIVE_TO_SELF,Animation.RELATIVE_TO_SELF,Animation.RELATIVE_TO_SELF);  		scaleAnimation.setDuration(500);	}

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调换布局：（这里使用异步操作）

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public void swapViewUpDown(int upViewId, int downViewId) {		View upView = (View) findViewById(upViewId);		View downView = (View) findViewById(downViewId);		upView.startAnimation(mUptoDownHideAnimation);		downView.startAnimation(mDowntoUpHideAnimation);		new LoadingTask().execute(upViewId,downViewId);			}private class LoadingTask extends AsyncTask<Integer, Void, List<Integer>> {		protected List<Integer> doInBackground(Integer... id) {			List<Integer> list = new ArrayList<Integer>();			list.add(id[0]);			list.add(id[1]);			try {				Thread.sleep(ANIMATION_DURATION);			} catch (Exception e) {				// TODO Auto-generated catch block				e.printStackTrace();			}			return list;		}		protected void onPostExecute(List<Integer> mList) {			super.onPostExecute(mList);			View upView = (View) findViewById(mList.get(0));			View downView = (View) findViewById(mList.get(1));		RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(				RelativeLayout.LayoutParams.MATCH_PARENT,				RelativeLayout.LayoutParams.WRAP_CONTENT);		params.addRule(RelativeLayout.BELOW, mList.get(1));		upView.setLayoutParams(params);		RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(				RelativeLayout.LayoutParams.MATCH_PARENT,				RelativeLayout.LayoutParams.WRAP_CONTENT);		params2.removeRule(RelativeLayout.BELOW);		downView.setLayoutParams(params2);		downView.startAnimation(scaleAnimation);		upView.startAnimation(scaleAnimation);	    }	}

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