如何在文本视图中以编程方式更改ImageView图像? [英] How to progmatically change the ImageView image in a textview?

问题描述

当我有一个带有左/右图像的TextView时，如何在运行时更改它?我已经在Google上进行了一些搜索，发现了很多有关通过XML进行操作的信息，但是在代码中却做得很少.这是我尝试过的方法，但这会更改整个textview背景.我正在尝试仅更改imageview的内容.

When I have a TextView with a left/right image, how can I change that at runtime? I've googled a bit and found a lot about doing it via XML, but not much on doing it in code. This is what I tried, but this changes the entire textview background. I'm trying to just change the imageview contents.

ImageView iv = new ImageView(getBaseContext());
iv.setBackgroundResource(R.drawable.newimage);
Drawable d = iv.getBackground();
textView3.setBackgroundDrawable(d);

推荐答案

没关系-做到了.

ImageView iv = new ImageView(getBaseContext());
iv.setBackgroundResource(R.drawable.redbg);
Drawable d = iv.getBackground();
d.setBounds(0, 0, 50, 50);
tv3.setCompoundDrawables(d, null, null, null);

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