软件启动动画及动画结束后跳转

自己写了个小程序，软件启动时，先显示几张图片，每3秒显示一张，图片显示完跳转到首页

1. 图片轮播使用Gallery，用法很简单

GalleryAdapter adapter = new GalleryAdapter(this, mIds);
mGallery.setAdapter(adapter);

GalleryAdapter是自定义适配器

    public class GalleryAdapter extends BaseAdapter {
        private Context mContext;
        private int mImageHeight;
        private int[] mIds;

        public GalleryAdapter(Context context, int[] ids) {
            this.mContext = context;
            this.mIds = ids;
            init();
        }

        private void init() {
            mImageHeight = px2dip(mContext, getScreenHeight(MainActivity.this));
        }

        @Override
        public int getCount() {
            return mIds.length;
        }

        @Override
        public Object getItem(int position) {
            return position;
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            final ImageView imageView = new ImageView(mContext);
            if (position < mIds.length) {
                int imageId = mIds[position];
                imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);//设置图片居中
                imageView.setLayoutParams(new Gallery.LayoutParams(
                        Gallery.LayoutParams.FILL_PARENT, mImageHeight));
                Bitmap bitmap = readBitMap(mContext, imageId);//用节省内存的方式加载图片，防止OOM
                imageView.setImageBitmap(bitmap);
                overridePendingTransition(R.anim.push_in, R.anim.push_out);//图片切换动画
            }
            return imageView;
        }
    }

2. 设置图片切换时间使用Timer定时器

Timer timer = new Timer();
timer.schedule(task, 3000, 3000);// 每3秒切换一张图片

private TimerTask task = new TimerTask() {
        @Override
        public void run() {
            Message message = new Message();
            message.what = 0;
            index = mGallery.getSelectedItemPosition();
            handler.sendMessage(message);
            index++;
            if (index == mIds.length - 1) {
                this.cancel();
                MainActivity.this.finish();
                Intent intent = new Intent(MainActivity.this, Test.class);
                startActivity(intent);
            }
        }

    };
    //不能直接在task中更新UI，所以用handler向主线程发送消息
    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            switch (msg.what) {
            case 0:
                mGallery.setSelection(index);
                break;
            default:
                break;
            }
        }

    };

3. 读取本地资源图片

public static Bitmap readBitMap(Context context, int resId) {
        BitmapFactory.Options opt = new BitmapFactory.Options();
        opt.inPreferredConfig = Bitmap.Config.RGB_565;
        opt.inPurgeable = true;
        opt.inInputShareable = true;
        // 获取资源图片
        InputStream is = context.getResources().openRawResource(resId);
        return BitmapFactory.decodeStream(is, null, opt);
    }

附上项目image.zip