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fragment和viewPage 实现画廊效果

fragment和viewPage 实现画廊效果

作者: 笨笨哒2018 | 来源:发表于2020-01-10 11:07 被阅读0次
    public class ZoomOutPageTransformer implements ViewPager.PageTransformer {
            private static final float MAX_SCALE = 1.0f;
            private static final float MIN_SCALE = 0.9f;
    
            @Override
            public void transformPage(View view, float position) {
                if (position < -1) {
                    view.setScaleX(MIN_SCALE);
                    view.setScaleY(MIN_SCALE);
                } else if (position <= 1) {
                    float scaleFactor = MIN_SCALE + (1 - Math.abs(position)) * (MAX_SCALE - MIN_SCALE);
                    view.setScaleX(scaleFactor);
                    if (position > 0) {
                        view.setTranslationX(-scaleFactor * 2);
                    } else if (position < 0) {
                        view.setTranslationX(scaleFactor * 2);
                    }
                    view.setScaleY(scaleFactor);
                } else {
                    view.setScaleX(MIN_SCALE);
                    view.setScaleY(MIN_SCALE);
                }
    
            }
        }
    

    viewPage布局设置 android:clipChildren="false"

    ViewPager.setPageTransformer(true, new ZoomOutPageTransformer());

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