安卓ViewGroup.setScaleX（）导致视图被裁剪 [英] Android ViewGroup.setScaleX() cause the view to be clipped

问题描述

我使用 NineOldAndroids 库扩展我的自定义布局。

I use NineOldAndroids library to scale my custom layout.

public class MyLayout extends FrameLayout {
  // LayoutParams.MATCH_PARENT and all.
  ...
  @Override
  public boolean setPositionAndScale(ViewGroup v, PositionAndScale pas, PointInfo pi) {
    ...
    mScale = pas.getScale();
    ViewHelper.setScaleX(this, mScale);
    ViewHelper.setScaleY(this, mScale);
  }
}

我已经试过的FrameLayout和AbsoluteLayout。所有有同样的效果。 当 mScale＆LT; 1.0 缩放/缩放作品但布局的一部分，是剪切。

I have tried FrameLayout and AbsoluteLayout. All have the same effect. When mScale < 1.0 scaling/zooming works but part of the layout is clipped.

mScale = 1.0：

mScale = 1.0:

mScale＆LT; 1.0： 缩放/缩放作品，但布局的剪切

mScale < 1.0: scaling/zooming works but layout is clipped

我该如何解决这个问题？

How can i fix this issue?

修改：在这张照片拍摄于ICS。因此，我不认为这是NineOldAndroids问题。

Edit: The picture was taken on ICS. So I don't think it's NineOldAndroids problem.

推荐答案

如果任何人有到一样的情况我。 最后我用这种方式：

In case anyone got in to the same situation as me. I ended up using this approach:

protected void setScale(float scale, boolean updateView) {
    mScale = scale;
    if (updateView) {
        LayoutParams params = getLayoutParams();
        onUpdateScale(scale, params);
        setLayoutParams(params);
    }
}

protected void onUpdateScale(float scale, LayoutParams params) {
    params.leftMargin = (int) (mModel.getX() * scale);
    params.topMargin = (int) (mModel.getY() * scale);
    params.width = (int) (mModel.getWidth() * scale);
    params.height = (int) (mModel.getHeight() * scale);
}

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