你怎么setLayoutParams（）为ImageView的？ [英] How do you setLayoutParams() for an ImageView?

问题描述

我想设置的LayoutParams 为的ImageView ，但不能似乎找到了正确的方法来做到这一点

I want to set the LayoutParams for an ImageView but cant seem to find out the proper way to do it.

我只能找到各种 ViewGroups 中的API文档，而不是一个的ImageView 。然而，的ImageView 好像有这个功能。

I can only find documentation in the API for the various ViewGroups, but not an ImageView. Yet the ImageView seems to have this functionality.

这code不工作...

This code doesn't work...

myImageView.setLayoutParams(new ImageView.LayoutParams(30,30));

我该怎么办呢？

How do I do it?

推荐答案

您需要设置的ViewGroup ImageView的是坐在的的LayoutParams。例如，如果你的ImageView的是里面的LinearLayout，然后创建一个

You need to set the LayoutParams of the ViewGroup the ImageView is sitting in. For example if your ImageView is inside a LinearLayout, then you create a

LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(30, 30);
yourImageView.setLayoutParams(layoutParams);

这是因为它是需要知道分配给视图什么大小的视图的父。

This is because it's the parent of the View that needs to know what size to allocate to the View.

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