安卓中利用TranslateAnimation实现图片循环移动时候的出现的一个问题，在这里记一下

最新推荐文章于 2021-05-29 01:53:53 发布

lsdnh521

最新推荐文章于 2021-05-29 01:53:53 发布

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分类专栏： Android开发文章标签： android 动画图片移动博客

本文链接：https://blog.youkuaiyun.com/lsdnh521/article/details/47665677

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在尝试使用Android的TranslateAnimation实现图片循环移动效果时，遇到在onAnimationEnd()中通过setVisibility()设置图片可见性导致顺序混乱的问题。经过排查，认为这可能是Android的一个Bug。解决方案可参考作者的另一篇博客：http://blog.youkuaiyun.com/lsdnh521/article/details/47664141。

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要利用安卓的Animation实现一个图片的循环移动效果，在这里要使用到setAnimationListener. 但是在其中的onAnimationEnd()方法中设置图片的visibility属性的时候，

用setVisibility()进行设置，程序逻辑上没有问题，但是运行的时候会乱掉，也就是图片的出现和消失的顺序会乱掉。一直找不到原因，最后换了一种方法实现了这个功能

，可以参考我的另外一篇博客，地址：http://blog.youkuaiyun.com/lsdnh521/article/details/47664141

个人感觉这应该是android的一个Bug

Java代码如下:

public class MainActivity extends Activity {

    private ImageView pictureDong,pictureJing_1,pictureJing_2,pictureJing_3,pictureJing_4;
    private static Boolean occurFlag = true;
    private static float offsetValue ;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_main);
        pictureDong = (ImageView) findViewById(R.id.pic_0);
        pictureJing_1 = (ImageView) findViewById(R.id.pic_1);
        pictureJing_2 = (ImageView) findViewById(R.id.pic_2);
        pictureJing_3 = (ImageView) findViewById(R.id.pic_3);
        pictureJing_4 = (ImageView) findViewById(R.id.pic_4);
        offsetValue = getResources().getDimension(R.dimen.offset_value);
        pictureJing_1.setVisibility(View.VISIBLE);

        final TranslateAnimation animation0 = new TranslateAnimation(0,offsetValue,0,0);
        animation0.setDuration(800);
        animation0.setFillAfter(true);

        final TranslateAnimation animation1 = new TranslateAnimation(offsetValue, offsetValue, 0, offsetValue);
        animation1.setDuration(800);
        animation1.setFillAfter(true);

        final TranslateAnimation animation2 = new TranslateAnimation(offsetValue,0,offsetValue,offsetValue);
        animation2.setDuration(800);
        animation2.setFillAfter(true);

        final TranslateAnimation animation3 = new TranslateAnimation(0,0,offsetValue,0);
        animation3.setDuration(800);
        animation3.setFillAfter(true);

        animation0.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {

            }

            @Override
            public void onAnimationEnd(Animation animation) {
                if (occurFlag == true){
                    pictureJing_2.setVisibility(View.VISIBLE);
                }else {
                    pictureJing_2.setVisibility(View.GONE);
                }
                pictureDong.startAnimation(animation1);
            }

            @Override
            public void onAnimationRepeat(Animation animation) {

            }
        });

        animation1.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {

            }

            @Override
            public void onAnimationEnd(Animation animation) {
                if (occurFlag == true){
                    pictureJing_3.setVisibility(View.VISIBLE);
                }else {
                    pictureJing_3.setVisibility(View.GONE);
                }
                pictureDong.startAnimation(animation2);
            }

            @Override
            public void onAnimationRepeat(Animation animation) {

            }
        });

        animation2.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {

            }

            @Override
            public void onAnimationEnd(Animation animation) {
                if (occurFlag == true){
                    pictureJing_4.setVisibility(View.VISIBLE);
                }else {
                    pictureJing_4.setVisibility(View.GONE);
                }
                pictureDong.startAnimation(animation3);
            }

            @Override
            public void onAnimationRepeat(Animation animation) {

            }
        });

        animation3.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {

            }

            @Override
            public void onAnimationEnd(Animation animation) {
                if (occurFlag == true){
                    occurFlag = false;
                }else {
                    occurFlag = true;
                }
                if (occurFlag == false){
                    pictureJing_1.setVisibility(View.GONE);
                }else {
                    pictureJing_1.setVisibility(View.GONE);
                }
                pictureDong.startAnimation(animation0);
            }

            @Override
            public void onAnimationRepeat(Animation animation) {

            }
        });

        pictureDong.startAnimation(animation0);

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

这个效果用setVisibility()来实现就是有问题，换了很多种方法，直到把setVisibility()都换掉问题才解决！很诡异的错误！