ANDROID JAVA方向的移动度控制 [英] ANDROID JAVA move control in direction in degrees

问题描述

如何移动在度一定direcion的控制（例如ImageView的）。有没有协调，其中控制需要停止移动。我们希望它在移动度的方向（0-360）

这不工作：

  RelativeLayout.LayoutParams PARAMS =新RelativeLayout.LayoutParams（RelativeLayout.LayoutParams.WRAP_CONTENT，RelativeLayout.LayoutParams.WRAP_CONTENT）;        params.setMargins（100,75，0,0）;
        params.topMargin = 100;
 

解决方案

找到了解决办法，这是它：
窦是解决...

  RelativeLayout的根=（RelativeLayout的）findViewById（R.id.rootLayout）;
INT originalPos [] =新INT [2];
bal.getLocationOnScreen（originalPos）;双罪=（Math.sin（Math.toRadians（度））*（root.getHeight（）/ 2））/ Math.sin（Math.toRadians（90  - 度））;
 

How do you move an control (for example a ImageView) in a certain direcion in degrees. There is no coordinate where the control needs to stop moving. we want to move it in a direction in degrees (0-360)

This doesn't work:

RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);

        params.setMargins(100,75, 0,0);
        params.topMargin= 100;

解决方案

Found the solution, this is it: Sinus was the solution...

RelativeLayout root = (RelativeLayout) findViewById( R.id.rootLayout );
int originalPos[] = new int[2];
bal.getLocationOnScreen( originalPos );

Double sin = (Math.sin(Math.toRadians(degrees)) * (root.getHeight() / 2 )) / Math.sin(Math.toRadians(90 - degrees));

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