ImageSwitcher is;

...

is.setInAnimation(this, android.R.anim.slide_in_left);

is.setOutAnimation(this, android.R.anim.slide_out_right);

上面实现了从左向右滑动的效果，可是反过来，从右向左滑动怎么实现呢？

 

默认情况下 android.R.anim.slide_in_right 和 android.R.anim.slide_out_left是私有的,也就是说通过.属性是找不到的.

解决办法:slide_in_right和slide_out_left这两个xml都可以在sdk里找到的，修改后作为自己的资源调用就好了

platforms\android-10\data\res\anim\下找到下面两个xml文件.

slide_in_right

slide_out_left

最后放到项目 res->anim下面

 

 

imgSwitcher.setOnTouchListener(

new OnTouchListener() {

            @Override

            

public boolean onTouch(View v, MotionEvent 

event) {

                

//

 TODO Auto-generated method stub

                

if (

event.getAction() == MotionEvent.ACTION_DOWN) {

                    downX = (

int) 

event.getX(); 

//

 取得按下时的坐标

                    Log.i(

"

event.getX()

", 

"

 downX 

" + downX);

                    

return 

true;

                } 

else 

if (

event.getAction() == MotionEvent.ACTION_UP) {

                    upX = (

int) 

event.getX(); 

//

 取得松开时的坐标

                    Log.i(

"

event.getX()

", 

"

 upX 

" + downX);

                    

//

 从左拖到右，即看前一张

                    

if (upX - downX > 

100) {

                        imgSwitcher.setInAnimation(AnimationUtils

                                .loadAnimation(firstActivity.

this,

                                        android.R.anim.slide_in_left));

                        imgSwitcher.setOutAnimation(AnimationUtils

                                .loadAnimation(firstActivity.

this,

                                        android.R.anim.slide_out_right));

                        curIndex--;

                        

if (curIndex < 

0) {

                            curIndex = 

5;

                        }

                        imgSwitcher.setImageResource(IMAGE_LIST[curIndex]);

                        firstActivity.

this.switchTitle(curIndex);

                    } 

else 

if (downX - upX > 

100) { 

//

 从右拖到左，即看后一张

                        imgSwitcher.setInAnimation(AnimationUtils

                                .loadAnimation(firstActivity.

this,

                                        R.anim.slide_out_left));

                        imgSwitcher.setOutAnimation(AnimationUtils

                                .loadAnimation(firstActivity.

this,

                                        R.anim.slide_in_right));

                        curIndex++;

                        

if (curIndex > 

5) {

                            curIndex = 

0;

                        }

                        imgSwitcher.setImageResource(IMAGE_LIST[curIndex]);

                        firstActivity.

this.switchTitle(curIndex);

                    }

                    

return 

true;

                }

                

return 

false;

            }

        });