Android Reveal Animation 启动 Activity

Question

如何在两个活动之间使用显示动画？有很多关于如何使用它在 Activity 中启动视图的信息和示例，但我想单击一个按钮并启动一个显示动画以打开下一个 Activity。 我尝试在第一个布局中包含第二个布局并将其设置为不可见，然后在单击按钮时显示它。但它不能正常工作。我想知道是否可以简单地将 Reveal 动画定义为 XML，但我不知道该怎么做。 谢谢

Answer 1

Reveal Effect 在活动和片段上也成功地为我工作 应用下面的代码来设置对活动或片段的显示效果。删除注释以使用代码下方的特定动画形式。

->在 setcontentview 之后应用此代码

                rootview = (RelativeLayout) findViewById(R.id.rootview);
                rootview.setBackgroundColor(getResources().getColor(R.color.colorAccent));
                rootview.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
                @Override
                public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
                    v.removeOnLayoutChangeListener(this);

              /*//BOTTOM RIGHT TO TOP LEFT ANIMATION
                int cx = (framelayout.getLeft() + framelayout.getRight());
                int cy = (framelayout.getTop() + framelayout.getBottom());
                // get the hypothenuse so the radius is from one corner to the other
                int radius = (int) Math.hypot(right, bottom);
                Animator reveal = ViewAnimationUtils.createCircularReveal(v, cx, cy, 0, radius);
                reveal.setInterpolator(new AccelerateDecelerateInterpolator());
                reveal.setDuration(600);
                reveal.start();*/

              /*  //LEFT TOP TO BOTTOM RIGHT ANIMATION
                int cx1 = 0;
                int cy1 = 0;
                // get the hypothenuse so the radius is from one corner to the other
                int radius1 = (int) Math.hypot(right, bottom);
                Animator reveal1 = ViewAnimationUtils.createCircularReveal(v, cx1, cy1, 0, radius1);
                reveal1.setInterpolator(new DecelerateInterpolator(2f));
                reveal1.setDuration(1000);
                reveal1.start();*/

               /* //EFFECT START WITH CENTER
                float finalRadius = (float) Math.hypot(v.getWidth(), v.getHeight());
                int cx1 = (framelayout.getLeft() + framelayout.getRight()) / 2;
                int cy1 = (framelayout.getTop() + framelayout.getBottom()) / 2;
                Animator anim = ViewAnimationUtils.createCircularReveal(v, cx1, cy1, 0, finalRadius);
                anim.setDuration(1000);
                anim.setInterpolator(new AccelerateDecelerateInterpolator());
                anim.start();*/

                    //OPEN WITH BOTTOM CENTER
                    int cx = (rootview.getLeft() + rootview.getRight()) / 2;
                    int cy = (rootview.getTop() + rootview.getBottom());
                    // get the hypothenuse so the radius is from one corner to the other
                    int radius = (int) Math.hypot(right, bottom);
                    Animator reveal = ViewAnimationUtils.createCircularReveal(v, cx, cy, 0, radius);
                    reveal.setInterpolator(new AccelerateDecelerateInterpolator());
                    reveal.setDuration(350);
                    reveal.addListener(new Animator.AnimatorListener() {
                        @Override
                        public void onAnimationStart(Animator animation) {

                        }

                        @Override
                        public void onAnimationEnd(Animator animation) {
                           // rootview.setBackgroundResource(R.color.white);
                        }

                        @Override
                        public void onAnimationCancel(Animator animation) {

                        }

                        @Override
                        public void onAnimationRepeat(Animator animation) {

                        }
                    });
                    reveal.start();


                }
            });

->隐藏显示效果onBackPressed()

// previously visible view
            final View myView = findViewById(R.id.rootview);

            // get the center for the clipping circle
            int cx = myView.getWidth() / 2;
            int cy = myView.getHeight() / 2;

            // get the initial radius for the clipping circle
            float initialRadius = (float) Math.hypot(cx, cy);

            // create the animation (the final radius is zero)
            Animator anim =
                    ViewAnimationUtils.createCircularReveal(myView, cx, cy, initialRadius, 0);
            anim.setDuration(50);
            // make the view invisible when the animation is done
            anim.addListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    super.onAnimationEnd(animation);
                    myView.setVisibility(View.INVISIBLE);
                }
            });

            // start the animation
            anim.start();

Answer 2

例如，您可以为 Activity 的父 Layout 设置动画。这是一个可能对您有所帮助的答案。它在 Activity 中淡出，但如果您了解它是如何完成的，您可以应用任何动画。

Fade In Android Launch Activity

要取消标准的内置活动动画，您可以使用此Intent.FLAG：

intent.setFlag(Intent.FLAG_ACTIVITY_NO_ANIMATION);

当你开始你的活动时。