Android Reveal动画开始活动

Question

如何在两个活动之间使用Reveal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，但是我想单击一个按钮并启动一个Reveal Animation来显示下一个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，然后在单击该按钮时将其显示出来。但它不能正常工作。我想知道如果我可以简单地将Reveal动画定义为XML，但我不知道如何去做。 谢谢

Answer 1

例如，您可以为活动的父布局设置动画。这是一个可以帮助你的答案。它在活动中消失，但如果您了解如何完成，则可以应用任何动画。

Fade In Android Launch Activity

要取消建立在活动动画的标准，你可以使用这个Intent.FLAG：

intent.setFlag(Intent.FLAG_ACTIVITY_NO_ANIMATION); 

当您启动活动。

Answer 2

显示效果成功为我在活动和片段上工作 应用下面的代码来设置对活动或片段的显示效果。删除注释以使用以下代码中的特定动画表单。

- >的setContentView

后使用此代码

   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(); 


       } 
      }); 

- >要隐藏显示效果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();