如何通过Java向Layout添加新对象？(How to add a new object to Layout by Java? Android)

如何通过Java向Layout添加新对象？(How to add a new object to Layout by Java? Android)

例如，我有一个ImageView得到了这个：

public ImageView get_image_by_name(String name) { int image_id = getResources().getIdentifier(name , "drawable", getPackageName()); return (ImageView)findViewById(image_id); }

不确定它是否有效。

我该如何将其添加到布局中？

For example, I have an ImageView got by this:

public ImageView get_image_by_name(String name) { int image_id = getResources().getIdentifier(name , "drawable", getPackageName()); return (ImageView)findViewById(image_id); }

Not sure it works at all.

How shall I add it to layout?

最满意答案

假设此函数位于Activity某个位置，您可以尝试这样做：

public ImageView get_image_by_name(String name) { int image_id = getResources().getIdentifier(name , "drawable", getPackageName()); ImageView iv = new ImageView(this); ViewGroup.LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); iv.setLayoutParams(lp); iv.setImageDrawable(getResources().getDrawable(image_id)); return iv; }

您还可以更改LayoutParams以满足您的要求。

Assuming this function is placed somewhere within Activity, you can try this:

public ImageView get_image_by_name(String name) { int image_id = getResources().getIdentifier(name , "drawable", getPackageName()); ImageView iv = new ImageView(this); ViewGroup.LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); iv.setLayoutParams(lp); iv.setImageDrawable(getResources().getDrawable(image_id)); return iv; }

You can also change LayoutParams to meet your requirements.