ViewFlipper -- 輪播圖

<ViewFlipper 
    android:id="@+id/flipper"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    ></ViewFlipper>  



public class MainActivity extends ActionBarActivity {

	private ViewFlipper flipper;
    private float startX;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		flipper = (ViewFlipper) findViewById(R.id.flipper);
		flipper.addView(getImageView(R.drawable.pic1));
		flipper.addView(getImageView(R.drawable.pic2));
		flipper.addView(getImageView(R.drawable.pic3));
		flipper.addView(getImageView(R.drawable.pic4));
		flipper.setBackgroundColor(Color.BLACK);
        //自動播放
		// flipper.setFlipInterval(5000);
		// flipper.setInAnimation(this, R.anim.anim_in);
		// flipper.setOutAnimation(this, R.anim.anim_out);
		// flipper.startFlipping();
		// detector=new GestureDetector(this, this);
	}

	private ImageView getImageView(int resId) {
		ImageView image = new ImageView(this);
		image.setBackgroundResource(resId);
		return image;
	}
    
    //手勢 觸摸屏幕
	@Override
	public boolean onTouchEvent(MotionEvent event) {
		// TODO Auto-generated method stub
		switch (event.getAction()) {
		case MotionEvent.ACTION_DOWN: {//手指觸碰
			startX=event.getX();
			break;
		}
		
		case MotionEvent.ACTION_UP://手指離開
		{
            //向右滑動
			if(event.getX()-startX>50)
			{
				 flipper.setInAnimation(this, R.anim.left_in);
				 flipper.setOutAnimation(this, R.anim.left_out);
				 flipper.showNext();
				
			}
			//向左滑動
			if(startX-event.getX()>50)
			{
				 flipper.setInAnimation(this, R.anim.right_in);
				 flipper.setOutAnimation(this, R.anim.right_out);
				 flipper.showPrevious();
			}
			break;
		}
		}

		return super.onTouchEvent(event);

	}

}