问题描述
android:如何从 Android Support Lib 版本 4 向 PagerTabStrip 添加图标/drawables?
android: How to add icons/drawables to the PagerTabStrip from the Android Support Lib version 4 ?
对于了解 PagerTabStrip 的人来说，这是一个非常具体的问题，我在任何地方都找不到足够的示例，它在某种程度上是新的(PagerTabStrip)，所以我找不到足够的信息.
This is very specific question to people aware of the PagerTabStrip, I couldn't find enough examples anywhere, it's somehow new (The PagerTabStrip) so i couldn't find enough info.
推荐答案
您可以使用 SpannableString 或 SpannableStringBuilder 轻松地将图标/drawable 添加到 PageTabStrip.
You can easily add an icon/drawable to the PageTabStrip using SpannableString or SpannableStringBuilder.
例如，在文本前显示一个图标:
For example, to display an icon before the text :
Drawable myDrawable; //Drawable you want to display
@Override
public CharSequence getPageTitle(int position) {
SpannableStringBuilder sb = new SpannableStringBuilder(" Page #"+ position); // space added before text for convenience
myDrawable.setBounds(0, 0, myDrawable.getIntrinsicWidth(), myDrawable.getIntrinsicHeight());
ImageSpan span = new ImageSpan(myDrawable, ImageSpan.ALIGN_BASELINE);
sb.setSpan(span, 0, 1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
return sb;
}
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